Summary of the invention
In view of this, the invention provides a kind of ultrasound probe for nonmetallic materials defects detection, such that it is able toUse above-mentioned ultrasound probe that the defect of nonmetallic materials inside configuration is carried out Non-Destructive Testing.
Technical scheme is specifically achieved in that
A kind of ultrasound probe for nonmetallic materials defects detection, including: shell, piezoelectric ceramic piece and sheet metal；
Described shell includes top cover and drain pan；The side of described drain pan is provided with wire hole；
Described piezoelectric ceramic piece is arranged between top cover and drain pan；
Between upper surface and the top cover inwall of described piezoelectric ceramic piece, it is through silver-plated between lower surface and drain pan inwallAnd the electrode formed after polarization process；
The upper and lower surface of described piezoelectric ceramic piece is provided with sheet metal；
It is provided with wire on described sheet metal；
Described wire is drawn from described wire hole.
It is also preferred that the left the material of described shell is the material after insulation processing.
It is also preferred that the left the material of described shell is the metal material after anode oxidation method processes.
It is also preferred that the left described metal material is aluminum.
It is also preferred that the left described circular piezoelectric potsherd is sheet type piezoelectric ceramic piece or annular sheet type piezoelectric ceramic piece.
It is also preferred that the left described piezoelectric ceramic piece and top cover and drain pan are connected by bonding or screw or bonding are connected phase with screwThe mode of combination is attached；
Described piezoelectric ceramic piece and sheet metal by bonding or screw connect or bonding be connected with screw combined by the way of enterRow connects.
It is also preferred that the left described wire is welded on described sheet metal.
It is also preferred that the left described sheet metal is the metal material that electric conductivity is good.
It is also preferred that the left the good metal material of described electric conductivity is copper.
As seen from the above technical solution, in the present invention in the ultrasound probe of nonmetallic materials defects detection, byIn employing the piezoelectric ceramic piece of sheet type, hence in so that the compact of ultrasound probe, easy for installation, can be veryEasily above-mentioned ultrasound probe is arranged on the inside of structure to be detected so that above-mentioned ultrasound probe can be used to existThe inside of structure to be detected is detected, and therefore the defect of nonmetallic materials inside configuration can be carried out Non-Destructive Testing.Further, since the volume of above-mentioned ultrasound probe is the least, therefore arrangement can be very flexible, can form probe battle arrayRow, therefore can carry out lossless lacking inside the xoncrete structure of nonmetallic materials inside configuration, especially large volumeFalling into detection, such that it is able to outer surface detection method is beyond one's reach, region is detected so that defects detection is without dead angle.
Detailed description of the invention
For making technical scheme and advantage clearer, below in conjunction with drawings and the specific embodiments,The present invention is further detailed explanation.
Fig. 1 is the section signal of the ultrasound probe for nonmetallic materials defects detection in the embodiment of the present inventionFigure, Fig. 2 is the top view of the drain pan in the embodiment of the present invention.As depicted in figs. 1 and 2, in the embodiment of the present inventionThe ultrasound probe for nonmetallic materials defects detection include: shell 11, piezoelectric ceramic piece 12 and sheet metal13；
Described shell 11 includes top cover 21 and drain pan 22；The side of described drain pan 22 is provided with wire hole 23；
Described piezoelectric ceramic piece 12 is arranged between top cover 21 and drain pan 22；
The upper and lower surface of described piezoelectric ceramic piece 12 is the electrode formed after silver-plated and polarization process；
Between upper surface and the top cover inwall of described piezoelectric ceramic piece 12, it is respectively provided with between lower surface and drain pan inwallThere is sheet metal 13；
It is provided with wire (not shown) on described sheet metal 13；
Described wire is drawn from described wire hole 23.
In actual applications, it is also preferred that the left in a particular embodiment of the present invention, described piezoelectric ceramic piece 12 is circleShape or annular piezoelectric ceramic piece.
It is also preferred that the left in a particular embodiment of the present invention, the material of described shell can be after insulation processingMaterial, such that it is able to prevent piezoelectric ceramic piece to be operationally short-circuited.
Such as, described shell can first use aluminum, stainless steel and other metal materials to make, and enters this shell the most againRow insulation processing.Such as, if described shell first makes to be formed from aluminium, then the aluminum of shell can be enteredRow anode oxidation method, thus complete insulation processing.Therefore, the material of described shell can be through anodic oxygenMetal material after the process of change method, such as, aluminum.
It addition, it is also preferred that the left in a particular embodiment of the present invention, described piezoelectric ceramic piece is thin rounded flakes formula pressureElectroceramics sheet or annular sheet type piezoelectric ceramic piece.
It addition, it is also preferred that the left in a particular embodiment of the present invention, described piezoelectric ceramic piece leads to top cover and drain panCross bonding or screw to connect or bonding be connected combined mode with screw and be attached；Described piezoelectric ceramic piece withSheet metal by bonding or screw connect or bonding be connected with screw combined by the way of be attached.
It addition, it is also preferred that the left in a particular embodiment of the present invention, described wire can be welded to described metalOn sheet, such that it is able to the two poles of the earth of piezoelectric ceramic piece are drawn by above-mentioned sheet metal.
It addition, it is also preferred that the left in a particular embodiment of the present invention, described sheet metal can be that electric conductivity is goodMetal material；Such as, copper sheet.
Based on having the ultrasound probe of said structure, owing to piezoelectric ceramic piece can be with output ultrasonic wave, therefore onlyNeed to this ultrasound probe be arranged to be detected in building course (such as, the casting process of xoncrete structure)In structure, can be internally formed centered by this ultrasound probe, to probe thickness side from this structure to be detectedThe ultrasound wave launched to (axially) such that it is able to the inside of structure to be detected is carried out lossless defects detection.
When using above-mentioned ultrasound probe, can be at structure building process (such as, xoncrete structure to be detectedCasting process) in, above-mentioned ultrasound probe is arranged on the inside of structure to be detected.The mode installed is permissibleHave a lot of in, can according to practical situations need select different mounting means.For example, it is possible to pass throughUltrasound probe is fixed on the inside of structure to be detected (such as, by iron wire by ultrasound wave by the binding thing such as iron wireProbe is fixed on inside xoncrete structure in the space away from built-in fittings such as reinforcing bars), and by wire from knot to be detectedThe inside of structure is drawn.
When installing above-mentioned ultrasound probe, need to ensure that this ultrasound probe will not occur to appoint after mounting againWhat is mobile.If structure to be detected is xoncrete structure, then also need to ensure around ultrasound probe outer surfaceWill not be because of the installation of ultrasound probe, fixing and produce the leakiness of any concreting in region.It addition,It is also noted that for the protection of wire.
Furthermore it is possible to according to the needs of practical situations, install one or more super in inside configuration to be detectedSonic probe.When installing multiple ultrasound probe, can be actually needed multiple ultrasonic according to field engineeringRipple probe arranges, thus spatially can arrange with three-dimensional position in the range of certain distance,Form linear transducer array.
Installing above-mentioned ultrasound probe, when needing to use above-mentioned ultrasound probe to detect, can be by eachThe wire of ultrasound probe is connected to be arranged on the ultrasonic detecting equipment of outside, by the ultrasonic parameters recordedAnd the waveform that equipment shows is to judge the density of inside configuration, carries out lossless defects detection.
In sum, in the inventive solutions, owing to employing sheet type in above-mentioned ultrasound probePiezoelectric ceramic piece, hence in so that the compact of ultrasound probe, easy for installation, can be easily by upperState ultrasound probe and be arranged on the inside of structure to be detected so that above-mentioned ultrasound probe can be used to be detectedThe inside of structure is detected, and therefore the defect of nonmetallic materials inside configuration can be carried out Non-Destructive Testing.SeparatelyOutward, owing to the volume of above-mentioned ultrasound probe is the least, therefore arrangement can be very flexible, can form probeArray, therefore can carry out nothing inside the xoncrete structure of nonmetallic materials inside configuration, especially large volumeThe defects detection damaged, such that it is able to outer surface detection method is beyond one's reach, region is detected so that defectDetection is without dead angle.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present inventionSpirit and principle within, any modification, equivalent substitution and improvement etc. done, should be included in the present invention protectWithin the scope of protecting.