Detection device and the light source light splitting body and photometric detection module for itTechnical field
Luminosity colorimetric detecting and analysing is the utility model is related to, body is divided more particularly to detection device and for its light sourceAnd photometric detection module.
Background technology
With the development of science and technology, the progress of the mankind, problem of environmental pollution but gradually exacerbates, wherein, water resource is the mankindThe treasure depended on for existence, therefore, water quality detection is just particularly important.
The course of work generally use " water sample mixes-reaction-detection with reagent " of the detection device of water analysis at presentAnalysis process：Instrument first successively by water sample to be measured and other reaction reagents by the quantitative injection reaction vessel of metering device, mixesReacted after closing uniformly, detected finally by detection means under certain condition.
The detection means of generally use is detected by principles such as colorimetric method, titration or electrode methods, determines that water sample is treatedSurvey the concentration of index.In colorimetric determination device, because light source fluctuation influences light intensity, therefore in order to eliminate the shadow of light source fluctuationRinging, generally making ratio with the reflected light (also referred to as reference light) reflected by light splitting piece by will transmit through the transmitted light of light splitting piece,The concentration of index to be measured is calculated by its ratio value afterwards.When detecting different samples, it is necessary to which different light splitting pieces, differentThe ratio of light splitting piece is different.In the detection means tested and analyzed using luminosity colorimetric principle in the prior art, lead toThe intensity for changing appropriate light splitting piece or adjustment light splitting reference voltage is often needed, to obtain optimal transmitted light and reference lightProportionality coefficient.In the prior art, light splitting piece is commonly mounted directly on light seat, is individually provided separately with lamp, so that moreChange light splitting piece or adjust light splitting piece and the cumbersome of angle is set, and be difficult to the micro- of transmitted light and reference light ratioAdjust.
Utility model content
A kind of the problem of the purpose of this utility model is to overcome prior art to exist, there is provided detection device and for itLight source light splitting body and photometric detection module, the conveniently replaced light splitting piece of its light source light splitting body and can now transmitted light with joiningThan the fine setting of light ratio.
To achieve these goals, a kind of light source for detection device is provided according to the utility model first aspect to be dividedBody, the light source light splitting body include lamp, lamp socket and light splitting piece, and the lamp socket has the hollow chamber of front and rear insertion, and the lamp is setPut in the hollow chamber and be arranged in the hollow chamber positioned at the rear end of the lamp socket, the light splitting piece and be located at instituteThe front end of lamp is stated, reflection loophole is provided with the side wall between the light splitting piece and the lamp of the lamp socket.
Preferably, the light splitting piece is obliquely arranged in the lamp socket so that the lamp reflects on the light splitting pieceLight can pass through the reflection loophole.
Preferably, the inwall of the lamp socket is provided with the groove for being used for installing the light splitting piece.
Preferably, the lamp socket includes the insertion section of cylinder and stopped from what the end of the insertion section extended radially outwardlyStopper.
Preferably, the light source light splitting body also includes lens and lens gland, before the lens are arranged on the lamp socketEnd, the lens gland is arranged on the front end of the lens, with lens described in gland.
Preferably, the side wall of the lamp socket is provided with circumferentially spaced multiple neck along the lamp socket, describedLens gland is provided with the multiple buckles coordinated respectively with the neck.
Preferably, the outside wall surface of the front end of the lamp socket is provided with the portion that caves inward, and the depth in the portion that caves inward is smallIn or equal to the buckle thickness.
According to second aspect of the present utility model, there is provided a kind of photometric detection module for detection device, the luminosityDetection module also includes being used for shuttle, transmission optical receiver, reference optical receiver, light source light splitting seat and the institute for accommodating sampleThe light source for detection device stated is divided body, and interconnected installation through hole and reception are provided with the light source light splitting seatHole, the end of the installation through hole are provided with lens, and the front end of the lamp socket is inserted in described install in through hole and can beRotated in the installation through hole, institute is projected through the reflection light beam after the reflection loophole and the receiver hole to adjustThe effective area on reference optical receiver is stated, the transmission optical receiver is arranged on the shuttle with light source light splitting seatBoth sides, the alignment of the front end of transmission optical receiver and the lamp socket, the reference optical receiver is arranged on the receptionThe surface in hole.
According to the third aspect of the present utility model, there is provided a kind of photometric detection module for detection device, the luminosityDetection module includes being used for shuttle, transmission optical receiver, reference optical receiver, the light source light splitting seat and described for accommodating sampleThe light source for detection device be divided body, be provided with interconnected installation through hole and receiver hole in light source light splitting seat,The front end of the lamp socket is inserted in the installation through hole and can rotated in the installation through hole, and institute is passed through to adjustState the reflection light beam after reflection loophole and the receiver hole and project effective area on the reference optical receiver, it is describedPenetrate the both sides that optical receiver is arranged on the shuttle with light source light splitting seat, the transmission optical receiver and the lamp socketFront end alignment, the reference optical receiver is arranged on the surface of the receiver hole.
According to fourth aspect of the present utility model, there is provided a kind of detection device, the detection device are used to examine including describedThe photometric detection module of measurement equipment.
Pass through above-mentioned technical proposal, the utility model is by the way that light splitting piece is arranged in lamp socket, by lamp, lamp socket and light splittingPiece assembles an entirety so that is convenient for changing light splitting piece, and light splitting piece is rotated together with lamp socket, also dividingReflection loophole is set in the side wall of the lamp socket between mating plate and lamp so that the part light of lamp is reflected by light splitting piece, andAnd the light of the reflection is projected by reflecting loophole, is received by reference optical receiver.Projected by the rotation regulation of lamp socketThe light intensity of reference optical receiver, the output voltage of reference optical receiver is finely adjusted with realizing, and then can realized to transmissionThe fine setting of light and reference light ratio, and the adjustment is simple, convenient.
Brief description of the drawings
Fig. 1 is the solid of the light source light splitting body for detection device in preferred embodiment of the present utility modelFigure；
Fig. 2 is the side view of the light source light splitting body for detection device in preferred embodiment of the present utility modelFigure；
Fig. 3 is that the light source for detection device in preferred embodiment of the present utility model is divided looking up for bodyFigure；
Fig. 4 is the section view of the light source light splitting body for detection device in preferred embodiment of the present utility modelFigure；
Fig. 5 is the section view of the photometric detection module for detection device in preferred embodiment of the present utility modelFigure；
Fig. 6 is the principle of the photometric detection module for detection device in preferred embodiment of the present utility modelSchematic diagram.
Description of reference numerals
1 light source light splitting body 2 light source light splitting seat
The 3 transmission reference optical receivers of optical receiver 4
The lamp of 5 shuttle 11
The light splitting piece of 12 lamp socket 13
The 14 reflection lens of loophole 15
The neck of 16 lens gland 17
The groove of 18 buckle 19
The 21 installation receiver holes of through hole 22
The stopper section of 121 insertion section 122
123 cave inward portion
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that hereinDescribed embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
In the utility model, in the case where not making opposite explanation, the noun of locality that uses as " top, bottom, it is upper and lower, preceding,Refer to afterwards " for being used for detection device under normal operating condition, or for vertical, vertical or gravity directionEach part mutual alignment relationship description word for upper；The noun of locality such as " inside and outside " is commonly referred to as the inside and outside of chamber.
In the prior art in the colorimetric determination device of generally use, because light source fluctuation influences light intensity, therefore in order to disappearExcept the influence of light source fluctuation, generally (it is also referred to as with the reflected light reflected by light splitting piece by will transmit through the transmitted light of light splitting pieceReference light) make ratio, the concentration of index to be measured is calculated by its ratio value afterwards.It is when detecting different samples, it is necessary to differentLight splitting piece, the ratio of different light splitting pieces is different.Being tested and analyzed using luminosity colorimetric principle in the prior artDetection means in, it usually needs change the intensity of appropriate light splitting piece or adjustment light splitting reference voltage, it is optimal to obtainTransmitted light and the proportionality coefficient of reference light.In the prior art, light splitting piece is commonly mounted directly on light seat, is individually separated with lampSet so that change light splitting piece or adjust light splitting piece set angle it is cumbersome, and be difficult to transmitted light withThe fine setting of reference light ratio.
Referring to Fig. 1 to Fig. 4, it is shown that according to the light source for detection device of preferred embodiment of the present utility model pointBody of light, light source light splitting body 1 include lamp 11, lamp socket 12 and light splitting piece 13, and lamp socket 12 has the hollow chamber of front and rear insertion, lamp 11It is arranged in hollow chamber and positioned at the rear end of lamp socket 12, light splitting piece 13 is arranged in hollow chamber and is located at the front end of lamp 11,Reflection loophole 14 is provided with the side wall between light splitting piece 13 and lamp 11 of lamp socket 12.
The utility model is gathered lamp 11, lamp socket 12 and light splitting piece 13 by the way that light splitting piece 13 is arranged in lamp socket 12Into an entirety so that be convenient for changing light splitting piece 13, and enable light splitting piece 13 to be rotated together with lamp socket 12, also existReflection loophole 14 is set in the side wall of the lamp socket 12 between light splitting piece 13 and lamp 11 so that the part light of lamp 11 passes through light splitting piece13 are reflected, and the light of the reflection is projected by reflecting loophole 14, are received by reference optical receiver 4.Pass through lamp socket12 rotation regulation projects the light intensity of reference optical receiver 4, to realize that the output voltage progress to reference optical receiver 4 is micro-Adjust, and then the fine setting to transmitted light and reference light ratio can be realized, the adjustment is simple, convenient.
Preferably, light splitting piece 13 is obliquely arranged in lamp socket 12 so that the light that lamp 11 reflects on light splitting piece 13 canThrough reflection loophole 14.13 inclined angle of light splitting piece can be set as the case may be.
In order to facilitate the replacing of light splitting piece 13, especially, the inwall of lamp socket 12 is provided with the groove for being used for installing light splitting piece 1319.Preferably, groove 19 is the through slot communicated with the hollow chamber of lamp socket 12.
The utility model also provides a kind of photometric detection module for detection device, and photometric detection module also includes being used forAccommodate the shuttle 5 of sample, transmission optical receiver 3, reference optical receiver 4, light source light splitting seat 2 and described set for detectionStandby light source light splitting body 1, light source light splitting seat 2 is interior to be provided with interconnected installation through hole 21 and receiver hole 22, installs through hole21 end is provided with lens 15, and the front end of lamp socket 12 is inserted in installation through hole 21 and can turned in installation through hole 21It is dynamic, to adjust the significant surface projected through the reflection light beam after reflection loophole 14 and receiver hole 22 on reference optical receiver 4Long-pending, transmission optical receiver 3 is arranged on the both sides of shuttle 5 with light source light splitting seat 2, before transmiting optical receiver 3 and lamp socket 12The alignment at end, reference optical receiver 4 are arranged on the surface of receiver hole 22.
Wherein, in preferred embodiment of the present utility model, through hole 21 is installed and receiver hole 22 is arranged in a mutually vertical manner,But the utility model is not limited thereto, the setting that through hole 21 and receiver hole 22 can also be at an angle of is installed, it is preferable that the angleDegree is between 60 degree to 120 degree.
Specifically, when photometric detection module detects, sample is passed through into shuttle 5, puts bright light 11, what lamp 11 was launchedFor light irradiation on light splitting piece 13, a part of light sequentially passes through light splitting piece 13, lens 15 and transmitted light container 3, is transmitted light-receivingDevice 3 receives；Another part light is reflected by light splitting piece 13, and the light of reflection sequentially passes through the reflection loophole 14 of at least partly alignmentWith receiver hole 22, received by reference optical receiver 4.The lamp socket 12 being divided again by rotating light source in seat 2, regulation reflection loopholeAlignment area between 14 and receiver hole 22, to adjust the light intensity of the reception of reference optical receiver 4, so as to reference optical receiver 4Output voltage be finely adjusted, to realize the fine setting to transmitted light and reference light ratio.Wherein, lens 15 are arranged on light source light splittingThe end of the installation through hole 21 of seat 2, to assemble the transmitted light through light splitting piece 13 so that transmitted light is more obvious, with convenientTransmission optical receiver 3 receives.
For the ease of facilitating lamp socket 12 to be rotated in light source light splitting seat 2, lamp socket 12 is facilitated to be divided the taking-up in seat 2 in light sourceAnd installation, it is preferable that lamp socket 12 includes the insertion section 121 of cylinder and stopped from what the end of insertion section 121 extended radially outwardlyStopper 122.Realize that lamp socket 12 is divided the rotation in seat 2 in light source by rotational stop portion 122, while lamp can also be limitedThe position of seat 12, ensure that reflection loophole 14 and receiver hole 22 can be aligned.
In another embodiment of the present utility model, light source light splitting body 1 also includes lens 15 and lens gland 16, thoroughlyMirror 15 is arranged on the front end of lamp socket 12, and lens gland 16 is arranged on the front end of lens 15, with gland lens 15.By by lens 15It is arranged on the front end of lamp socket 12 so that lens 15, lamp 11, lamp socket 12 and light splitting piece 13 are assembled into an entirety.When need moreWhen changing lens 15, it is only necessary to light source is divided into body 1 and is divided taking-up in seat 2 by light source, lens gland 16 will be removed and change lens 15.
Lens gland 16 is taken for convenience, it is preferable that the side wall of lamp socket 12 is provided with the circumferentially-spaced arrangement along lamp socket 12Multiple necks 17, lens gland 16 be provided with respectively with neck 17 coordinate multiple buckles 18.Pass through neck 17 and buckle 18Between cooperation, realize that lens gland 16 is removably disposed in the front end of lens 15.Certainly threaded connection can also be used, i.e.,The inwall of lens gland 16 and the side wall of lamp socket 12 are provided with the screw thread to cooperate.
It is arranged on to not influence light source light splitting body 1 in light source light splitting seat 2, it is preferable that the outside wall surface of the front end of lamp socket 12The portion 123 that caves inward is provided with, the depth in the portion 123 that caves inward is less than or equal to the thickness of buckle 18.So that even if it is provided withLens 15 and lens gland 16 will not also increase the external diameter of lamp socket 12.
Referring to Fig. 5 and Fig. 6, it is shown that the utility model additionally provides another photometric detection mould for being used for detection deviceBlock, photometric detection module include being used for shuttle 5, transmission optical receiver 3, reference optical receiver 4, the light source for accommodating sampleIt is divided seat 2 and the described light source for detection device is divided body 1, interconnected installation insertion is provided with light source light splitting seat 2Hole 21 and receiver hole 22, the front end of lamp socket 12 are inserted in installation through hole 21 and can rotated in installation through hole 21, withRegulation projects the effective area on reference optical receiver 4 through the reflection light beam after reflection loophole 14 and receiver hole 22, thoroughlyPenetrate the both sides that optical receiver 3 is arranged on shuttle 5 with light source light splitting seat 2, transmission optical receiver 3 and pair of the front end of lamp socket 12Standard, reference optical receiver 4 are arranged on the surface of receiver hole 22.
Wherein, in preferred embodiment of the present utility model, through hole 21 is installed and receiver hole 22 is arranged in a mutually vertical manner,But the utility model is not limited thereto, the setting that through hole 21 and receiver hole 22 can also be at an angle of is installed, it is preferable that the angleDegree is between 60 degree to 120 degree.
Specifically, when photometric detection module detects, sample is passed through into shuttle 5, puts bright light 11, what lamp 11 was launchedFor light irradiation on light splitting piece 13, a part of light sequentially passes through light splitting piece 13, lens 15 and transmitted light container 3, is transmitted light-receivingDevice 3 receives；Another part light is reflected by light splitting piece 13, and the light of reflection sequentially passes through the reflection loophole 14 of at least partly alignmentWith receiver hole 22, received by reference optical receiver 4.The lamp socket 12 being divided again by rotating light source in seat 2, regulation reflection loopholeAlignment area between 14 and receiver hole 22, to adjust the light intensity of the reception of reference optical receiver 4, so as to reference optical receiver 4Output voltage be finely adjusted, to realize the fine setting to transmitted light and reference light ratio.Wherein, lens 15 are used to assemble to pass through and dividedThe transmitted light of mating plate 13 so that transmitted light is more obvious, to facilitate transmission optical receiver 3 to receive.By the way that lens 15 are arranged onThe front end of lamp socket 12 so that lens 15, lamp 11, lamp socket 12 and light splitting piece 13 are assembled into an entirety.When need change lensWhen 15, it is only necessary to light source is divided into body 1 and is divided taking-up in seat 2 by light source, lens gland 16 will be removed and change lens 15.
The utility model additionally provides a kind of detection device, and the detection device includes the described luminosity for detection deviceDetection module.By the way that light splitting piece 13 is arranged in lamp socket 12, by lamp 11, lamp socket 12 and light splitting piece 13 assemble one it is wholeBody so that be convenient for changing light splitting piece 13, and light splitting piece 13 is rotated together with lamp socket 12, also in light splitting piece 13Reflection loophole 14 is set in the side wall of the lamp socket 12 between lamp 11 so that the part light of lamp 11 is carried out instead by light splitting piece 13Penetrate, and the light of the reflection is projected by reflecting loophole 14, is received by reference optical receiver 4.Pass through the rotation of lamp socket 12Regulation projects the light intensity of reference optical receiver 4, the output voltage of reference optical receiver 4 is finely adjusted with realizing, Jin ErnengEnough fine settings realized to transmitted light and reference light ratio, the adjustment are simple, convenient.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawingDetail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility modelArt scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lanceIn the case of shield, it can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to eachThe possible combination of kind no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyedThought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.