【０００１】[0001]
【発明の属する技術分野】この発明は超音波流量測定装
置に関し、特に、流体が内部を一定方向に流れる導管の
上流と下流の外周面に一対の送受波器を配置し、一方の
送受波器から送波された超音波が導管の内周面で反射さ
れて他方の送受波器に受波されるべく、超音波の伝播経
路がなす伝播平面が導管の軸線を含むように送受波器を
ガイドし装着させる案内手段と、案内手段にガイドされ
る送受波器を導管の軸線方向の所望の位置に固定できる
軸線方向位置固定手段とを有し、送受波器が送受する超
音波により導管を流れる流体の速度を測定する超音波流
量測定装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic flow rate measuring device, and in particular, a pair of transducers are arranged on the outer peripheral surface upstream and downstream of a conduit through which a fluid flows in a fixed direction, and one transducer is provided. In order for the ultrasonic wave transmitted from the ultrasonic wave to be reflected by the inner peripheral surface of the conduit and to be received by the other transducer, set the transducer so that the propagation plane of the ultrasonic wave propagation path includes the axis of the conduit. It has guide means for guiding and mounting, and axial position fixing means for fixing the wave transmitter / receiver guided by the guide means to a desired position in the axial direction of the conduit. The present invention relates to an ultrasonic flow rate measuring device that measures the velocity of flowing fluid.
【０００２】[0002]
【従来の技術】この種の超音波流量測定装置の原理につ
いて図５を参照して説明する。図５の超音波流量測定装
置２００においては、測定対象となる流体が導管６０の
中を矢印ＦＤの向きに流れる。導管６０の外周面には、
振動子７１とプラスチックの楔形台座７２とからなる送
受波器７０の一対が所定の距離をあけて配置されてい
る。また、台座７２と導管６０の外周面との間には、超
音波の伝播効率を向上させるために、音響整合媒質が塗
られている。一方の送受波器からの送波が導管６０の内
周面で反射し、他方の送受波器で受波される超音波の伝
播経路のなす平面を伝播平面と呼ぶことにすると、この
伝播平面は、図５において、導管６０の軸線を含む紙面
に相当する。このように送受波器７０が超音波を正確に
授受できる正規の方向および位置をとっている場合、導
管６０を流れる流体の速度をＶ、伝播経路長をＬ、音速
をｃとすると、一方の送受波器から他方の送受波器への
到達時間について、流れ方向に対する順方向と逆方向と
の時間差Δｔ（伝播時間差）は、近似的に下記の式
（１）で表される。すなわち、Δｔ＝２ＬＶ／ｃ２ ・・・ （１）であって、この式から分かるように、測定により伝播時
間差Δｔが分かれば、流速Ｖを求めることができ、さら
に、導管６０の断面積から流量を求めることができる。2. Description of the Related Art The principle of this type of ultrasonic flow rate measuring device will be described with reference to FIG. In the ultrasonic flow rate measuring device 200 of FIG. 5, the fluid to be measured flows through the conduit 60 in the direction of the arrow FD. On the outer peripheral surface of the conduit 60,
A pair of transducers 70 each including a vibrator 71 and a plastic wedge-shaped pedestal 72 are arranged with a predetermined distance. An acoustic matching medium is applied between the pedestal 72 and the outer peripheral surface of the conduit 60 in order to improve the propagation efficiency of ultrasonic waves. The plane formed by the propagation path of the ultrasonic wave transmitted from one of the wave transmitters and reflected by the inner peripheral surface of the conduit 60 and received by the other wave transmitter / receiver is called a propagation plane. 5 corresponds to the paper surface including the axis of the conduit 60 in FIG. In this way, when the transmitter / receiver 70 is in the normal direction and position where ultrasonic waves can be transmitted and received accurately, if the velocity of the fluid flowing through the conduit 60 is V, the propagation path length is L, and the sound velocity is c, one of Regarding the arrival time from the wave transmitter / receiver to the other wave transmitter / receiver, the time difference Δt (propagation time difference) between the forward direction and the backward direction with respect to the flow direction is approximately represented by the following formula (1). That is, Δt = 2LV / c2 (1), and as can be seen from this equation, if the propagation time difference Δt is known from the measurement, the flow velocity V can be obtained, and the flow rate can be calculated from the cross-sectional area of the conduit 60. Can be asked.
【０００３】図６は、上述の原理に基づいて構成されて
いる従来例の超音波流量測定装置の側面図である。この
超音波流量測定装置２０１において、一対の送受波器７
０は、案内フレーム８０により、導管６０の軸線に平行
に直進できるようにガイドされている。この案内フレー
ム８０は、平行に対向する２つの部材を主構成部材と
し、その中心線が導管６０の軸線と平行になるように導
管６０の外周上に配置されている。このような案内フレ
ーム８０の位置決めは、案内フレーム８０の両端に取り
付けられたサドル８１によって行われる。このサドル８
１は、導管６０の外周面と外接する溝形状を有してお
り、金属あるいはプラスチック布からなるベルト８２に
より導管６０の外周面上に締め付け固定される。この溝
形状面は、数段階の幅寸法を有しており、サドル８１が
装着される種々の径の導管６０に適切に対応できるよう
に意図されている。FIG. 6 is a side view of a conventional ultrasonic flow rate measuring apparatus constructed on the basis of the above-mentioned principle. In this ultrasonic flow rate measuring device 201, a pair of transducers 7
The 0 is guided by a guide frame 80 so that it can travel straight in parallel to the axis of the conduit 60. The guide frame 80 has two members facing each other in parallel as main constituent members, and is arranged on the outer periphery of the conduit 60 so that its center line is parallel to the axis of the conduit 60. Such positioning of the guide frame 80 is performed by saddles 81 attached to both ends of the guide frame 80. This saddle 8
1 has a groove shape circumscribing the outer peripheral surface of the conduit 60, and is fastened and fixed on the outer peripheral surface of the conduit 60 by a belt 82 made of metal or plastic cloth. This groove-shaped surface has several width dimensions and is intended to accommodate various conduits 60 of various diameters in which the saddle 81 is mounted.
【０００４】[0004]
【発明が解決しようとする課題】上述の従来例において
は、導管の外周面への送受波器の取り付けは、超音波の
送受波が２つの送受波器の間で正確に行われるために、
超音波の伝播平面が導管の軸線を含むように行われなけ
ればならない。これに対応するために、案内フレームの
両端に取り付けられたサドルに数段階の幅寸法を有する
溝形状面が形成されている。この数段階の幅寸法の溝形
状面に対して、それに接する導管の外周寸法は多種類に
わたるため、導管のサイズによっては、溝形状面の幅寸
法に適合せず、案内フレームが導管の上に装着されると
き、案内フレームの中心線が伝播平面の延長面の中に来
るように設定できない、すなわち、送受波器が組み付け
られたとき、超音波の伝播平面が導管の軸線を含むよう
に設定できないという問題がある。In the above-mentioned conventional example, the transducer is mounted on the outer peripheral surface of the conduit because the transmission and reception of ultrasonic waves is accurately performed between the two transducers.
The plane of propagation of the ultrasonic waves must be such that it contains the axis of the conduit. In order to cope with this, the saddles attached to both ends of the guide frame are formed with groove-shaped surfaces having several width dimensions. Since there are many types of outer peripheral dimensions of the conduit that is in contact with the groove-shaped surface having several widths, the guide frame may not fit on the conduit depending on the size of the groove depending on the size of the conduit. When installed, the guideline centerline cannot be set to lie in the extension of the propagation plane, i.e., when the transducer is installed, the ultrasonic propagation plane is set to include the conduit axis There is a problem that you cannot do it.
【０００５】この発明は、上記の問題を解決するために
なされたものであって、超音波流量測定装置の主要構成
要素である案内フレームの取り付け位置が自動的に正確
に決められ、ひいては、作業時間の短縮などの作業性の
向上を図ることができる超音波流量測定装置を提供する
ことを目的とする。The present invention has been made to solve the above problems, and the mounting position of the guide frame, which is a main component of the ultrasonic flow rate measuring device, is automatically and accurately determined, and the work is performed. An object is to provide an ultrasonic flow rate measuring device capable of improving workability such as shortening of time.
【０００６】[0006]
【課題を解決するための手段】前述した課題を解決する
ために、この発明は、流体が内部を一定方向に流れる導
管の上流と下流の外周面に一対の送受波器を配置し、一
方の送受波器から送波された超音波が導管の内周面で反
射されて他方の送受波器に受波されるべく、超音波の伝
播経路がなす伝播平面が導管の軸線を含むように送受波
器をガイドし装着させる案内手段と、案内手段にガイド
される送受波器を導管の軸線方向の所望の位置に固定で
きる軸線方向位置固定手段とを有し、送受波器が送受す
る超音波により導管を流れる流体の速度を測定する超音
波流量測定装置において、案内手段に取り付けられた弾
性部材であって、案内手段が導管の上に装着されると
き、案内手段の中心線が伝播平面の延長面内に位置する
ように、延長面の両側で導管の外周面を弾性的に押圧す
る弾性部材を有する。In order to solve the above-mentioned problems, the present invention arranges a pair of wave transmitters / receivers on the outer peripheral surface upstream and downstream of a conduit through which a fluid flows in a certain direction, and In order for the ultrasonic wave transmitted from the transducer to be reflected by the inner peripheral surface of the conduit and received by the other transducer, the transmission plane formed by the propagation path of the ultrasonic wave is transmitted and received so as to include the axis of the conduit. The ultrasonic wave transmitted and received by the transducer includes guide means for guiding and mounting the wave device, and axial position fixing means for fixing the wave guide guided by the wave guide at a desired position in the axial direction of the conduit. In an ultrasonic flow rate measuring device for measuring the velocity of a fluid flowing through a conduit by means of an elastic member attached to the guide means, when the guide means is mounted on the conduit, the center line of the guide means is the plane of propagation. Place both sides of the extension surface so that they are located in the extension surface. In having an elastic member for pressing the outer peripheral surface of the conduit elastically.
【０００７】このような構成によれば、超音波流量測定
装置を組み立てる場合、その主要構成要素である案内手
段を導管の外周面に装着する際に、弾性部材が伝播平面
の延長面の両側において、導管の外周面を押圧するの
で、案内手段は、その中心線が伝播平面の延長面の中に
自動的に来るように設置される。したがって、この案内
手段にガイドされて装着される送受波器の送受する超音
波の伝播経路がなす伝播平面は、導管の軸線を含むよう
になる。According to this structure, when assembling the ultrasonic flow rate measuring device, the elastic members are provided on both sides of the extension surface of the propagation plane when the guide means, which is a main component of the ultrasonic flow measuring device, is mounted on the outer peripheral surface of the conduit. Since the outer peripheral surface of the conduit is pressed, the guide means is installed so that its center line automatically comes into the extension surface of the propagation plane. Therefore, the propagation plane formed by the propagation path of the ultrasonic waves transmitted and received by the transducer installed while being guided by the guide means includes the axis of the conduit.
【０００８】また、この発明において、前記弾性部材
は、トーションスプリングであって、その巻の中心線が
案内手段の中心線と平行となるように取り付けられ、ト
ーションスプリングの両端末は、直線的に延び、案内手
段が導管に装着された状態のとき、導管の外周面に接し
て導管を押圧しているトーションスプリングである。こ
の場合、部材は、一般的なトーションスプリングなので
実施が容易である。Further, in the present invention, the elastic member is a torsion spring and is attached so that the center line of the winding is parallel to the center line of the guide means, and both ends of the torsion spring are linear. A torsion spring that extends and presses the conduit in contact with the outer peripheral surface of the conduit when the guide means is attached to the conduit. In this case, since the member is a general torsion spring, it is easy to implement.
【０００９】さらに、この発明において、前記弾性部材
は、板スプリングであって、案内手段の側面にそれぞれ
取り付けられ、その両端末は、直線的に延び、案内手段
が導管に装着された状態のとき、導管の外周面に接して
導管を押圧している板スプリングである。板スプリング
を案内手段の側面にそれぞれ取り付けることは、極めて
容易であり、その構造から、案内手段の導管上への装着
も容易である。Further, in the present invention, the elastic member is a leaf spring and is attached to each side surface of the guide means. Both ends of the elastic member extend linearly and when the guide means is attached to the conduit. The leaf spring is in contact with the outer peripheral surface of the conduit and presses the conduit. It is extremely easy to attach the leaf springs to the side surfaces of the guide means, respectively, and because of its structure, it is easy to mount the guide means on the conduit.
【００１０】[0010]
【発明の実施の形態】以下、この発明の実施の形態につ
いて添付図面に基づいて説明する。実施の形態１．図１は、この発明の超音波流量測定装置
の第１の実施の形態を示す正面図、図２は、図１の側面
図である。図１の超音波流量測定装置１００において、
導管１０は、円形断面を有し、測定対象となる流体を通
過させる。送受波器２０は、導管１０の上流と下流の外
周面にそれぞれ配置され、一方が送出した超音波が導管
１０の内周面で反射され、それを他方が受信する。案内
フレーム３０は、送受波器２０が挿入できるような間隔
をもって平行に配置された一対の板状部材を有し、その
両端部はサドル３１によって接合され一体化されてい
る。この一対の板状部材を有する案内フレーム３０は、
その仮想中心平面に対しては、面対称となるように構成
されている。この案内フレーム３０が正確に導管１０の
上に装着され、その案内フレーム３０に送受波器２０が
正確に装着された場合には、案内フレーム３０の仮想中
心平面ＩＭＳは、先に説明した導管の中の伝播平面を含
み、換言すれば、仮想中心平面ＩＭＳが伝播平面の延長
上にあることとなる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. Embodiment 1. FIG. 1 is a front view showing a first embodiment of an ultrasonic flow rate measuring device of the present invention, and FIG. 2 is a side view of FIG. In the ultrasonic flow rate measuring device 100 of FIG.
The conduit 10 has a circular cross section and allows the fluid to be measured to pass through. The wave transmitters / receivers 20 are arranged on the outer peripheral surfaces of the upstream side and the downstream side of the conduit 10, respectively, and the ultrasonic wave transmitted by one is reflected on the inner peripheral surface of the conduit 10, and the ultrasonic wave is received by the other. The guide frame 30 has a pair of plate-shaped members that are arranged in parallel with each other so that the wave transmitter / receiver 20 can be inserted therein. Both ends of the guide frame 30 are joined and integrated by a saddle 31. The guide frame 30 having the pair of plate-shaped members is
It is configured to be plane-symmetric with respect to the virtual center plane. When the guide frame 30 is mounted exactly on the conduit 10 and the transducer 20 is mounted correctly on the guide frame 30, the virtual center plane IMS of the guide frame 30 is equal to that of the conduit described above. Including the propagation plane therein, in other words, the virtual center plane IMS is on an extension of the propagation plane.
【００１１】サドル３１の組立ねじ３３の周囲にはトー
ションスプリング３５が配置され、その端末は、互いに
交差して導管１０の上に延び、案内フレーム３０が導管
１０に組み付けられるとき、案内フレーム３０が導管１
０の上に押圧されると、トーションスプリング３５の端
末部分は、配導管１０の外周面を押圧する。その押圧力
に対抗して発生する弾性力は、案内フレーム３０の仮想
中心平面ＩＭＳが導管１０の中心軸（伝播平面）と重な
るように作用する。図１の例の場合、トーションスプリ
ング３５の２つの端末部分は、巻の中間のところで交差
するようにされているので、力の平行をとり易くなって
いる。このように一体化された案内フレーム３０および
サドル３１の取り付けのために、ベルト３２がトーショ
ンスプリング３５の上にを通って導管１０に掛けられ、
締め付けられる。A torsion spring 35 is arranged around the assembly screw 33 of the saddle 31 and its ends extend over the conduit 10 to intersect each other so that when the guide frame 30 is assembled to the conduit 10, the guide frame 30 is Conduit 1
When pressed above 0, the end portion of the torsion spring 35 presses the outer peripheral surface of the conduit 10. The elastic force generated against the pressing force acts so that the virtual center plane IMS of the guide frame 30 overlaps the center axis (propagation plane) of the conduit 10. In the case of the example of FIG. 1, the two end portions of the torsion spring 35 are made to intersect at the middle of the winding, so that the forces can be easily parallelized. For the attachment of the guide frame 30 and the saddle 31 thus integrated, the belt 32 is passed over the torsion spring 35 and hung on the conduit 10.
Tightened.
【００１２】上述したように構成されているので、一体
化された案内フレーム３０およびサドル３１の取り付け
時において、サドル３１に取り付けられたトーションス
プリング３５の上を通って導管１０の外周に巻き付けら
れたベルト３２が締め付けられると、案内フレーム３０
およびサドル３１は、導管１０の上に押圧され、同時
に、トーションスプリング３５の２つの端末部分は、案
内フレーム３０の仮想中心平面ＩＭＳのそれぞれの側に
おいて、導管１０の外周面を押圧するので、その押圧力
に対抗して発生するトーションスプリング３５による弾
性力が案内フレーム３０の仮想中心平面ＩＭＳが導管１
０の中心軸と重なるように（導管１０の中心軸の真上に
配置されるように）作用する。このとき、送受波器２０
は、まだ組み付けられていないので、送受波器２０に関
する位置調整は必要でなく、音響整合媒質を塗布する必
要もないので、一体化された案内フレーム３０およびサ
ドル３１の取り付けに関する位置の選択や移動を含めて
作業は容易である。Since the guide frame 30 and the saddle 31 are integrated as described above, the guide frame 30 and the saddle 31 are wound around the outer periphery of the conduit 10 while passing over the torsion spring 35 attached to the saddle 31. When the belt 32 is tightened, the guide frame 30
And the saddle 31 is pressed onto the conduit 10, while at the same time the two end portions of the torsion spring 35 press against the outer peripheral surface of the conduit 10 on each side of the virtual center plane IMS of the guide frame 30. The elastic force of the torsion spring 35 generated against the pressing force causes the virtual center plane IMS of the guide frame 30 to move to the conduit 1.
It acts so as to overlap with the central axis of 0 (so as to be arranged directly above the central axis of the conduit 10). At this time, the transceiver 20
Since it is not assembled yet, it is not necessary to adjust the position of the transducer 20, and it is not necessary to apply the acoustic matching medium. Therefore, the position selection and the movement regarding the mounting of the integrated guide frame 30 and the saddle 31 are performed. It is easy to work including.
【００１３】このように導管１０の外周面上に取り付け
られた案内フレーム３０は、その板状部材の間に送受波
器２０が挿入されたときに、送受波器２０を導管１０の
軸線に平行に直進案内する。そこで、例えば、図１の例
の場合、２つの送受波器２０を指定の間隔をあけて予め
固定レール４０に取り付け、送受波器２０の底面に音響
整合媒質２９を塗布した後に、固定レール４０と一体化
した送受波器２０を案内フレーム３０にガイドされるよ
うに、２つの案内フレーム３０の間に挿入し、固定レー
ル４０を固定ねじ４３により案内フレーム３０に固定す
れば、送受波器２０は、正規の方向と位置（伝播平面が
導管１０の中心軸を含む）とをもって導管１０の上に装
着され、超音波流量測定装置１００の組立が完了する。
このことから、送受波器２０の方向や位置の調整を要せ
ず、ひとりの作業者によって容易に作業することができ
る。The guide frame 30 attached to the outer peripheral surface of the conduit 10 in this way is parallel to the axis of the conduit 10 when the transducer 20 is inserted between the plate members. Go straight to. Therefore, for example, in the case of the example of FIG. 1, the two transducers 20 are attached to the fixed rail 40 in advance at a specified interval, the acoustic matching medium 29 is applied to the bottom surface of the transducer 20, and then the fixed rail 40 is applied. The transducer 20 integrated with the guide frame 30 is inserted between the two guide frames 30 so as to be guided by the guide frame 30, and the fixed rail 40 is fixed to the guide frame 30 by the fixing screw 43. Is mounted on the conduit 10 in the proper direction and position (the propagation plane includes the central axis of the conduit 10), and the assembly of the ultrasonic flow measuring device 100 is completed.
Therefore, it is not necessary to adjust the direction and position of the wave transmitter / receiver 20, and a single worker can easily work.
【００１４】実施の形態２．図３は、この発明の超音波
流量測定装置の第２の実施の形態を示す正面図、図４
は、図３の側面図である。図３の超音波流量測定装置１
０１と、図１の超音波流量測定装置１００との相違は、
超音波流量測定装置１０１は、超音波流量測定装置１０
０で用いているトーションスプリング３５の代わりに板
スプリング３６を用いている点である。すなわち、案内
フレーム３０の側面であって、サドル３１に近い部分に
板スプリング３６が固定ねじ４４によって取り付けられ
ている。この場合においても、板スプリング３６は、案
内フレーム３０の仮想中心平面ＩＭＳに対して面対称と
なるように配置されている。トーションスプリング３５
も入手、加工、組立の面で容易であるが、板スプリング
３６の場合、これらは、さらに容易である。Embodiment 2. FIG. 3 is a front view showing a second embodiment of the ultrasonic flow rate measuring device of the present invention, and FIG.
FIG. 4 is a side view of FIG. 3. Ultrasonic flow measuring device 1 of FIG.
01 and the ultrasonic flow rate measuring device 100 of FIG.
The ultrasonic flow rate measuring device 101 is the ultrasonic flow rate measuring device 10
The point is that a leaf spring 36 is used instead of the torsion spring 35 used in 0. That is, the leaf spring 36 is attached to the side surface of the guide frame 30 near the saddle 31 by the fixing screw 44. Also in this case, the leaf spring 36 is arranged so as to be plane-symmetric with respect to the virtual center plane IMS of the guide frame 30. Torsion spring 35
It is also easy to obtain, process, and assemble, but in the case of the leaf spring 36, these are even easier.
【００１５】図３の超音波流量測定装置１０１は、この
ように構成されているので、一体化された案内フレーム
３０およびサドル３１の取り付け時において、サドル３
１の上を通って導管１０の外周に巻き付けられたベルト
３２が締め付けられると、案内フレーム３０およびサド
ル３１は、導管１０の上に押圧され、同時に、板スプリ
ング３６の端末部分は、案内フレーム３０の仮想中心平
面ＩＭＳのそれぞれの側において、配導管１０の外周面
を押圧する。その押圧力に対抗して発生する板スプリン
グ３６による弾性力が、案内フレーム３０の仮想中心平
面ＩＭＳが導管１０の中心軸と重なるように（導管１０
の中心軸の真上に配置されるように）作用する。したが
って、図１の超音波流量測定装置１００と同様に、送受
波器２０に関する位置調整は必要でなく、音響整合媒質
を塗布する必要もないので、一体化された案内フレーム
３０およびサドル３１の取り付けは、位置の選択や移動
を含めて容易である。また、固定レール４０と一体化し
た送受波器２０を案内フレーム３０の間に挿入し、固定
レール４０を固定する方法は、図１の場合と同じであ
る。Since the ultrasonic flow rate measuring device 101 of FIG. 3 is constructed in this manner, the saddle 3 is attached when the integrated guide frame 30 and saddle 31 are attached.
When the belt 32 wrapped around the outer circumference of the conduit 10 is tightened over the conduit 1, the guide frame 30 and the saddle 31 are pressed onto the conduit 10, and at the same time, the end portion of the leaf spring 36 causes the guide frame 30 to move. The outer peripheral surface of the conduit 10 is pressed on each side of the virtual center plane IMS. The elastic force generated by the plate spring 36 against the pressing force causes the virtual center plane IMS of the guide frame 30 to overlap the central axis of the conduit 10 (conduit 10
(Just above the central axis of). Therefore, similarly to the ultrasonic flow rate measuring device 100 of FIG. 1, it is not necessary to adjust the position of the transducer 20, and it is not necessary to apply the acoustic matching medium, so that the integrated guide frame 30 and saddle 31 are attached. Is easy including position selection and movement. The method of inserting the wave transceiver 20 integrated with the fixed rail 40 between the guide frames 30 and fixing the fixed rail 40 is the same as in the case of FIG.
【００１６】[0016]
【発明の効果】この発明の超音波流量測定装置は、以上
において説明したように構成されているので、案内手段
を送受波器とは独立して導管に装着することができ、そ
の装着に際しては、弾性部材が伝播平面の延長面の両側
において、導管の外周面を押圧するので、案内手段は、
その中心線が伝播平面の延長面の中に来るように自動的
に設置される。したがって、このように正確に装着され
た案内手段にガイドされて装着される送受波器の送受す
る超音波の伝播経路がなす伝播平面は、導管の軸線を含
むようになり、正確な流量測定を行うことができるとと
もに、案内手段の位置決めや位置の変更を含む作業は容
易になり、作業時間の短縮などの作業性の向上を図るこ
とができる。Since the ultrasonic flow rate measuring device of the present invention is constructed as described above, the guide means can be attached to the conduit independently of the wave transmitter / receiver. Since the elastic member presses the outer peripheral surface of the conduit on both sides of the extension surface of the propagation plane, the guide means is
It is installed automatically so that its centerline lies in the extension of the plane of propagation. Therefore, the propagation plane formed by the propagation path of the ultrasonic waves transmitted and received by the transducer, which is guided and mounted by the accurately mounted guide means as described above, includes the axis line of the conduit tube, so that accurate flow rate measurement can be performed. In addition to being able to perform the work, the work including positioning and changing the position of the guide means is facilitated, and workability can be improved such as shortening the work time.
【図１】この発明の超音波流量測定装置の第１の実施の
形態を示す正面図である。FIG. 1 is a front view showing a first embodiment of an ultrasonic flow rate measuring device of the present invention.
【図２】図１の超音波流量測定装置の側面図である。FIG. 2 is a side view of the ultrasonic flow rate measuring device of FIG.
【図３】この発明の超音波流量測定装置の第２の実施の
形態を示す正面図である。FIG. 3 is a front view showing a second embodiment of the ultrasonic flow rate measuring device of the present invention.
【図４】図３の超音波流量測定装置の側面図である。FIG. 4 is a side view of the ultrasonic flow rate measuring device of FIG.
【図５】超音波流量測定装置の原理を説明するための図
である。FIG. 5 is a diagram for explaining the principle of the ultrasonic flow rate measuring device.
【図６】図５の原理によって構成された従来の超音波流
量測定装置を示す側面図である。FIG. 6 is a side view showing a conventional ultrasonic flow rate measuring device configured according to the principle of FIG.
１０ 導管、２０ 送受波器、２９ 音響整合媒質、３
０ 案内フレーム、３１ サドル、３２ ベルト、３３
組立ねじ、３５ トーションスプリング、３６ 板ス
プリング、４０ 固定レール、４３，４４ 固定ねじ、
１００，１０１超音波流量測定装置、ＩＭＳ 仮想中心
平面（伝播平面）。10 conduits, 20 transducers, 29 acoustic matching medium, 3
0 guide frame, 31 saddle, 32 belt, 33
Assembly screws, 35 torsion springs, 36 leaf springs, 40 fixed rails, 43, 44 fixing screws,
100, 101 ultrasonic flowmeter, IMS virtual center plane (propagation plane).
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001238926AJP2003050144A (en) | 2001-08-07 | 2001-08-07 | Ultrasonic flow measurement device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001238926AJP2003050144A (en) | 2001-08-07 | 2001-08-07 | Ultrasonic flow measurement device |
| Publication Number | Publication Date |
|---|---|
| JP2003050144Atrue JP2003050144A (en) | 2003-02-21 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001238926AWithdrawnJP2003050144A (en) | 2001-08-07 | 2001-08-07 | Ultrasonic flow measurement device |
| Country | Link |
|---|---|
| JP (1) | JP2003050144A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006047243A (en)* | 2004-08-09 | 2006-02-16 | Honda Electronic Co Ltd | Ultrasonic flowmeter |
| JP2007121299A (en)* | 2005-10-25 | 2007-05-17 | Krohne Ag | Mounting method of clamp-on type flow measuring device and mounting device for mounting clamp-on type flow measuring device |
| KR100780707B1 (en) | 2007-02-07 | 2007-11-30 | 자인테크놀로지(주) | Ultrasonic Flowmeter Sensor Block |
| JP2008504543A (en)* | 2004-06-28 | 2008-02-14 | フレクシム フレクシブレ インドゥストリーメステヒニーク ゲーエムベーハー | Method for calibrating mounting type or clamp type ultrasonic flow measuring device |
| US8857269B2 (en) | 2010-08-05 | 2014-10-14 | Hospira, Inc. | Method of varying the flow rate of fluid from a medical pump and hybrid sensor system performing the same |
| CN104390669A (en)* | 2014-11-17 | 2015-03-04 | 浙江大学 | Positioning device and method for effectively improving strength of receiving signals of ultrasonic probes |
| CN105181044A (en)* | 2015-05-15 | 2015-12-23 | 何相之 | Ultrasonic flowmeter |
| EP2966416A3 (en)* | 2014-07-11 | 2016-01-27 | Flexim Flexible Industriemesstechnik Gmbh | Measuring head clamp-on device for ultrasonic flow measuring heads |
| US10022498B2 (en) | 2011-12-16 | 2018-07-17 | Icu Medical, Inc. | System for monitoring and delivering medication to a patient and method of using the same to minimize the risks associated with automated therapy |
| US10166328B2 (en) | 2013-05-29 | 2019-01-01 | Icu Medical, Inc. | Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system |
| US10342917B2 (en) | 2014-02-28 | 2019-07-09 | Icu Medical, Inc. | Infusion system and method which utilizes dual wavelength optical air-in-line detection |
| US10430761B2 (en) | 2011-08-19 | 2019-10-01 | Icu Medical, Inc. | Systems and methods for a graphical interface including a graphical representation of medical data |
| US10463788B2 (en) | 2012-07-31 | 2019-11-05 | Icu Medical, Inc. | Patient care system for critical medications |
| US10578474B2 (en) | 2012-03-30 | 2020-03-03 | Icu Medical, Inc. | Air detection system and method for detecting air in a pump of an infusion system |
| US10596316B2 (en) | 2013-05-29 | 2020-03-24 | Icu Medical, Inc. | Infusion system and method of use which prevents over-saturation of an analog-to-digital converter |
| US10635784B2 (en) | 2007-12-18 | 2020-04-28 | Icu Medical, Inc. | User interface improvements for medical devices |
| US10656894B2 (en) | 2017-12-27 | 2020-05-19 | Icu Medical, Inc. | Synchronized display of screen content on networked devices |
| US10850024B2 (en) | 2015-03-02 | 2020-12-01 | Icu Medical, Inc. | Infusion system, device, and method having advanced infusion features |
| US10874793B2 (en) | 2013-05-24 | 2020-12-29 | Icu Medical, Inc. | Multi-sensor infusion system for detecting air or an occlusion in the infusion system |
| US11135360B1 (en) | 2020-12-07 | 2021-10-05 | Icu Medical, Inc. | Concurrent infusion with common line auto flush |
| US11246985B2 (en) | 2016-05-13 | 2022-02-15 | Icu Medical, Inc. | Infusion pump system and method with common line auto flush |
| US11278671B2 (en) | 2019-12-04 | 2022-03-22 | Icu Medical, Inc. | Infusion pump with safety sequence keypad |
| US11324888B2 (en) | 2016-06-10 | 2022-05-10 | Icu Medical, Inc. | Acoustic flow sensor for continuous medication flow measurements and feedback control of infusion |
| US11344673B2 (en) | 2014-05-29 | 2022-05-31 | Icu Medical, Inc. | Infusion system and pump with configurable closed loop delivery rate catch-up |
| US11344668B2 (en) | 2014-12-19 | 2022-05-31 | Icu Medical, Inc. | Infusion system with concurrent TPN/insulin infusion |
| US11883361B2 (en) | 2020-07-21 | 2024-01-30 | Icu Medical, Inc. | Fluid transfer devices and methods of use |
| US12350233B2 (en) | 2021-12-10 | 2025-07-08 | Icu Medical, Inc. | Medical fluid compounding systems with coordinated flow control |
| USD1091564S1 (en) | 2021-10-13 | 2025-09-02 | Icu Medical, Inc. | Display screen or portion thereof with graphical user interface for a medical device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008504543A (en)* | 2004-06-28 | 2008-02-14 | フレクシム フレクシブレ インドゥストリーメステヒニーク ゲーエムベーハー | Method for calibrating mounting type or clamp type ultrasonic flow measuring device |
| JP2006047243A (en)* | 2004-08-09 | 2006-02-16 | Honda Electronic Co Ltd | Ultrasonic flowmeter |
| JP2007121299A (en)* | 2005-10-25 | 2007-05-17 | Krohne Ag | Mounting method of clamp-on type flow measuring device and mounting device for mounting clamp-on type flow measuring device |
| KR100780707B1 (en) | 2007-02-07 | 2007-11-30 | 자인테크놀로지(주) | Ultrasonic Flowmeter Sensor Block |
| US10635784B2 (en) | 2007-12-18 | 2020-04-28 | Icu Medical, Inc. | User interface improvements for medical devices |
| US8857269B2 (en) | 2010-08-05 | 2014-10-14 | Hospira, Inc. | Method of varying the flow rate of fluid from a medical pump and hybrid sensor system performing the same |
| US12346879B2 (en) | 2011-08-19 | 2025-07-01 | Icu Medical, Inc. | Systems and methods for a graphical interface including a graphical representation of medical data |
| US11004035B2 (en) | 2011-08-19 | 2021-05-11 | Icu Medical, Inc. | Systems and methods for a graphical interface including a graphical representation of medical data |
| US11972395B2 (en) | 2011-08-19 | 2024-04-30 | Icu Medical, Inc. | Systems and methods for a graphical interface including a graphical representation of medical data |
| US10430761B2 (en) | 2011-08-19 | 2019-10-01 | Icu Medical, Inc. | Systems and methods for a graphical interface including a graphical representation of medical data |
| US11599854B2 (en) | 2011-08-19 | 2023-03-07 | Icu Medical, Inc. | Systems and methods for a graphical interface including a graphical representation of medical data |
| US10022498B2 (en) | 2011-12-16 | 2018-07-17 | Icu Medical, Inc. | System for monitoring and delivering medication to a patient and method of using the same to minimize the risks associated with automated therapy |
| US11376361B2 (en) | 2011-12-16 | 2022-07-05 | Icu Medical, Inc. | System for monitoring and delivering medication to a patient and method of using the same to minimize the risks associated with automated therapy |
| US11933650B2 (en) | 2012-03-30 | 2024-03-19 | Icu Medical, Inc. | Air detection system and method for detecting air in a pump of an infusion system |
| US10578474B2 (en) | 2012-03-30 | 2020-03-03 | Icu Medical, Inc. | Air detection system and method for detecting air in a pump of an infusion system |
| US11623042B2 (en) | 2012-07-31 | 2023-04-11 | Icu Medical, Inc. | Patient care system for critical medications |
| US10463788B2 (en) | 2012-07-31 | 2019-11-05 | Icu Medical, Inc. | Patient care system for critical medications |
| US12280239B2 (en) | 2012-07-31 | 2025-04-22 | Icu Medical, Inc. | Patient care system for critical medications |
| US10874793B2 (en) | 2013-05-24 | 2020-12-29 | Icu Medical, Inc. | Multi-sensor infusion system for detecting air or an occlusion in the infusion system |
| US12048831B2 (en) | 2013-05-24 | 2024-07-30 | Icu Medical, Inc. | Multi-sensor infusion system for detecting air or an occlusion in the infusion system |
| US10166328B2 (en) | 2013-05-29 | 2019-01-01 | Icu Medical, Inc. | Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system |
| US12059551B2 (en) | 2013-05-29 | 2024-08-13 | Icu Medical, Inc. | Infusion system and method of use which prevents over-saturation of an analog-to-digital converter |
| US10596316B2 (en) | 2013-05-29 | 2020-03-24 | Icu Medical, Inc. | Infusion system and method of use which prevents over-saturation of an analog-to-digital converter |
| US11433177B2 (en) | 2013-05-29 | 2022-09-06 | Icu Medical, Inc. | Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system |
| US11596737B2 (en) | 2013-05-29 | 2023-03-07 | Icu Medical, Inc. | Infusion system and method of use which prevents over-saturation of an analog-to-digital converter |
| US10342917B2 (en) | 2014-02-28 | 2019-07-09 | Icu Medical, Inc. | Infusion system and method which utilizes dual wavelength optical air-in-line detection |
| US12083310B2 (en) | 2014-02-28 | 2024-09-10 | Icu Medical, Inc. | Infusion system and method which utilizes dual wavelength optical air-in-line detection |
| US11344673B2 (en) | 2014-05-29 | 2022-05-31 | Icu Medical, Inc. | Infusion system and pump with configurable closed loop delivery rate catch-up |
| EP2966416A3 (en)* | 2014-07-11 | 2016-01-27 | Flexim Flexible Industriemesstechnik Gmbh | Measuring head clamp-on device for ultrasonic flow measuring heads |
| JP2016020907A (en)* | 2014-07-11 | 2016-02-04 | フレクシム フレクシブレ インドゥストリーメステヒニーク ゲーエムベーハー | Measurement head fixing part for ultrasonic flowmeter measurement head |
| CN105318931A (en)* | 2014-07-11 | 2016-02-10 | 弗莱克森柔性工业计量有限公司 | Measuring head clamp-on device for ultrasonic flow measuring heads |
| CN105318931B (en)* | 2014-07-11 | 2018-12-18 | 弗莱克森柔性工业计量有限公司 | Measuring head clamping device for measuring ultrasonic wave flow head |
| CN104390669A (en)* | 2014-11-17 | 2015-03-04 | 浙江大学 | Positioning device and method for effectively improving strength of receiving signals of ultrasonic probes |
| US11344668B2 (en) | 2014-12-19 | 2022-05-31 | Icu Medical, Inc. | Infusion system with concurrent TPN/insulin infusion |
| US12115337B2 (en) | 2015-03-02 | 2024-10-15 | Icu Medical, Inc. | Infusion system, device, and method having advanced infusion features |
| US10850024B2 (en) | 2015-03-02 | 2020-12-01 | Icu Medical, Inc. | Infusion system, device, and method having advanced infusion features |
| CN105181044A (en)* | 2015-05-15 | 2015-12-23 | 何相之 | Ultrasonic flowmeter |
| US12201811B2 (en) | 2016-05-13 | 2025-01-21 | Icu Medical, Inc. | Infusion pump system and method with common line auto flush |
| US11246985B2 (en) | 2016-05-13 | 2022-02-15 | Icu Medical, Inc. | Infusion pump system and method with common line auto flush |
| US12076531B2 (en) | 2016-06-10 | 2024-09-03 | Icu Medical, Inc. | Acoustic flow sensor for continuous medication flow measurements and feedback control of infusion |
| US11324888B2 (en) | 2016-06-10 | 2022-05-10 | Icu Medical, Inc. | Acoustic flow sensor for continuous medication flow measurements and feedback control of infusion |
| US11029911B2 (en) | 2017-12-27 | 2021-06-08 | Icu Medical, Inc. | Synchronized display of screen content on networked devices |
| US11868161B2 (en) | 2017-12-27 | 2024-01-09 | Icu Medical, Inc. | Synchronized display of screen content on networked devices |
| US12333201B2 (en) | 2017-12-27 | 2025-06-17 | Icu Medical, Inc. | Synchronized display of screen content on networked devices |
| US10656894B2 (en) | 2017-12-27 | 2020-05-19 | Icu Medical, Inc. | Synchronized display of screen content on networked devices |
| US11278671B2 (en) | 2019-12-04 | 2022-03-22 | Icu Medical, Inc. | Infusion pump with safety sequence keypad |
| US12268843B2 (en) | 2019-12-04 | 2025-04-08 | Icu Medical, Inc. | Infusion pump with safety sequence keypad |
| US11883361B2 (en) | 2020-07-21 | 2024-01-30 | Icu Medical, Inc. | Fluid transfer devices and methods of use |
| US12310921B2 (en) | 2020-07-21 | 2025-05-27 | Icu Medical, Inc. | Fluid transfer devices and methods of use |
| US11135360B1 (en) | 2020-12-07 | 2021-10-05 | Icu Medical, Inc. | Concurrent infusion with common line auto flush |
| US12390586B2 (en) | 2020-12-07 | 2025-08-19 | Icu Medical, Inc. | Concurrent infusion with common line auto flush |
| USD1091564S1 (en) | 2021-10-13 | 2025-09-02 | Icu Medical, Inc. | Display screen or portion thereof with graphical user interface for a medical device |
| US12350233B2 (en) | 2021-12-10 | 2025-07-08 | Icu Medical, Inc. | Medical fluid compounding systems with coordinated flow control |
| Publication | Publication Date | Title |
|---|---|---|
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| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed | Free format text:JAPANESE INTERMEDIATE CODE: A300 Effective date:20081007 |