CN2147534Y - Multi-function modulus of elasticity tester - Google Patents
Multi-function modulus of elasticity tester Download PDFInfo
- Publication number
- CN2147534Y CN2147534Y CN 92234166 CN92234166U CN2147534Y CN 2147534 Y CN2147534 Y CN 2147534Y CN 92234166 CN92234166 CN 92234166 CN 92234166 U CN92234166 U CN 92234166U CN 2147534 Y CN2147534 Y CN 2147534Y
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- CN
- China
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- microcomputer
- interface board
- workpiece
- vltrasonic device
- square wave
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- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
The utility model relates to a multifunctional elasticity modulus tester which is provided with an ultrasonic device, an interface board and a microcomputer. When the utility model works, the ultrasonic device emits ultrasonic to a workpiece, and receives reflection wave from the bottom surface of the workpiece to carry out the conversion between a pulse signal and the ultrasonic; the synthesis time square wave is amplified to form counting square wave which is input into the microcomputer by the interface board and is processed; the elasticity modulus, the acoustic speed and the thickness of various solid materials can be tested. The range of testing is large, and the workpiece with the length larger than 100mm can be tested; the testing blind zone is small; miniature, thin type and irregular type workpieces with the thicknesses larger than and equal to 0.4mm and the diameter of the testing surface larger than 3mm can be tested. The utility model has the advantages of high testing precision, intelligent test, easy production, low cost, etc.
Description
The utility model is elastic modulus (E) analyzer that a kind of energy is held concurrently the survey thickness of workpiece and the velocity of sound, belongs to solid material performance ultrasonic detecting technology field.
Elastic modulus is the important physical parameter of solid material, and a series of physical and mechanical properties of material are had decisive influence.Therefore, the mensuration elastic modulus is significant to many performances of research and definite solid material.The existing method of mensuration elastic modulus and instrument have multiple, for example resonant method and hammering method and corresponding measuring instrument thereof.They all require the test specimen regular shape, and size is big and tolerance is strict, can not directly be used for measuring irregular type spare, 10mm with interior small-sized and slim elastic modulus.When measuring the elastic modulus of more small-sized test specimen, require to use complicated suspender or make the above long rod type test specimen of 100mm with homogeneous material, so the surveying work complexity, accuracy of detection is lower, and testing cost is big.Along with science and technology and industrial expansion, new material constantly occurs, its description is more and more, use more and more wider, wherein some material such as superhard material, engineering ceramics etc. have a series of excellent properties, high and new technology and many industrial expansions are had material impact, but its product size are generally less, even shape is also irregular, and some material can not be made the large scale test specimen.Therefore, existing measuring technique can not be measured the elastic modulus of these materials and goods, can not satisfy the needs of high-performance new material and goods thereof research and development.
The purpose of this utility model is the funtcional relationship according to elastic modulus E and its related physical quantity such as the velocity of sound etc., utilize ultrasonic measurement and modernized data processing technique, design a kind of energy and detect the particularly instrument of irregular type spare, small articles and slim elastic modulus of various material test specimens, improve accuracy of detection and efficient, realize a tractor serves several purposes, to satisfy various solid materials particularly high-performance new material and the goods research and development requirement more and more higher thereof to detection technique.
The utility model is a kind of multi-functional elastic modulus tester, has Vltrasonic device, interface board and microcomputer.In instrument when work,, Vltrasonic device is to workpiece emission ultrasound wave and receive the reflection wave of its bottom surface, carries out the conversion between pulse signal and ultrasound wave, the generated time square wave is amplified, form the counting square wave, and then, measure elastic modulus, the velocity of sound and the thickness of workpiece by interface board input MICROCOMPUTER PROCESSING.
Other characteristics of this instrument comprise: interface board has photoelectric isolating circuit, and this circuit is formed by connecting by photo-coupler IC1, IC2, driving switch K and resistance R 1～R10; The light emitting diode of photo-coupler is connected to Vltrasonic device, and phototriode is connected to microcomputer, and the two is the common-battery source not; Driving switch K is coaxial with the driving switch of Vltrasonic device; Microcomputer is single card microcomputer or single-chip microcomputer.
This analyzer is by Vltrasonic device, interface board and microcomputer be formed by connecting (Fig. 1).Vltrasonic device has expelling plate, dash receiver, a time and puts to patrol and seize plate and probe.Expelling plate is to dash receiver and probe while transponder pulse signal, probe is converted to ultrasound wave with this pulse signal, and contact scribbles the surface measurements of couplant when detecting, make ultrasound wave inject workpiece and receive the reflection wave of its bottom surface, be converted to pulse signal then and give the dash receiver amplification, and the pulse signal of directly sending here with expelling plate there synthesizes the time square wave, and then puts when sending into to patrol and seize plate and amplify, and forms counting square wave input interface plate.Interface board has the photoelectric isolating circuit (Fig. 2) that is formed by connecting by photo-coupler IC, driving switch K and resistance R.Driving switch is provided with some gears according to apparatus measures scope and accuracy requirement, and is preferably coaxial with the driving switch of Vltrasonic device.Photo-coupler can be one or more, establishes a grade requirement as long as the photocoupler set sum of its () satisfies instrument.Photo-coupler has the light emitting diode of a photocoupler set to be connected in Vltrasonic device counting square wave delivery outlet through resistance, and its phototriode output terminal is connected in the counter input port of microcomputer; The light emitting diode of used other photocoupler set is connected then corresponding each grade input port that is connected in microcomputer of the emitter of its phototriode through resistance with the corresponding gear of driving switch.The number of resistance is relevant with used photocoupler set number, and the two all is decided by the shelves number of driving switch.The effect of resistance is the electric current of restricted passage light emitting diode and phototriode, and its resistance can be pressed Ohm law according to supply voltage and rated current and be determined.Microcomputer can be single card microcomputer or single-chip microcomputer, the perhaps microcomputer of other patterns, and all can wear printer as required.The light emitting diode of interface board photoelectric isolating circuit and phototriode be the common-battery source not.Structurally, shielding measure is arranged and taked to each assembly by the mode that is isolated from each other.Like this, interface board just can pass to the counter of microcomputer with the counting square wave of Vltrasonic device output with the photoelectricity coupling scheme, and avoids between Vltrasonic device and the microcomputer mutual interference mutually taking place.Each of instrument grade all has suitable range.General I shelves range minimum, its adopt second trip echo signal after amplification with transmitted wave generated time square wave, wide to strengthen its ripple, thus reduce the blind area.Each phototriode output high level of interface circuit neutral gear, the quick triode of frequency modulated light on the throne is output low level then.During instrument work, microcomputer is counted the counting square wave of input, height according to each gear level of input, judge current place gear, change the required parameter of each functional measurement, utilize the corresponding datas such as Poisson ratio, density, thickness of the detected materials of importing, according to elastic modulus, the velocity of sound or the thickness of the command calculations workpiece of being imported, and with result's demonstration or print.In aforementioned expelling plate, dash receiver, time, put logic card, probe or their assembly Vltrasonic device, photo-coupler IC, K switch, resistance R and microcomputer and be commercially available standardized product.
Easily seen by above-mentioned: interface board adopts many frequency modulated lights electric isolating circuit to connect Vltrasonic device and microcomputer, Vltrasonic device and microcomputer spatially divide and are arranged and take shielding measure, this structure has guaranteed that this instrument utilizes ultrasound wave particularly elastic modulus, the velocity of sound and the thickness of its secondary reflection ripple detection technique and microcomputer data processing technical measurement solid material, and the result shown or print, and can measure thickness and be not less than 0.4mm, measure the face diameter and surpass slim of 3mm, small articles and irregular type spare.Therefore, this analyzer compared with prior art has following advantage: can survey small-sized, the slim and irregular type workpiece in the above-mentioned range of size, it is little to measure the blind area; Measurement range is big, can survey the workpiece that length surpasses 100mm, measuring accuracy height, error＜± 1%; Can measure the elastic modulus of solid, also its thickness of energy measurement and the velocity of sound, and the result directly shown or print, realized a tractor serves several purposes with measure intelligent; Used components and parts are commercially available standard product, so instrument is made easily, cost is also low.This analyzer has solved the existing in prior technology problem in a word, realized the modernization that physical properties such as solid material elastic modulus detect, for quickening the particularly research and development of superhard material, the contour performance materials of engineering ceramics and goods of new material, satisfy scientific-technical progress and industrial development important foundation has been established in the more and more higher requirement that material proposes.
Fig. 1 is the utility model apparatus structure theory diagram.
Fig. 2 is this analyzer interface board circuit theory diagrams.
Embodiment 1
Analyzer has Vltrasonic device, interface board and microcomputer (Fig. 1).Vltrasonic device is commercially available CCH-30 type, have expelling plate, dash receiver, the time put logic card and ultrasonic probe.Interface board has photoelectric isolating circuit (Fig. 2), and it is IC1, IC2 that two photo-couplers are arranged in the circuit, a fourth gear bit switch K and 10 resistance R 1～R10.Photo-coupler IC1 is the TLP521-4 type, and its four light emitting diodes correspondingly are connected with the I～IV gear of K switch through resistance R 1～R4, and the output terminal of four phototriodes then connects the I～IV shelves input port of microcomputer.Photo-coupler IC2 is the TLP521-2 type, and an one light emitting diode is connected in Vltrasonic device counting square wave output terminal, and the output terminal of corresponding phototriode then is connected with microcomputer counter input port.The light emitting diode of photo-coupler and phototriode be the common-battery source not.K switch is coaxial with the driving switch of Vltrasonic device.Microcomputer is a SC801C type single card microcomputer.On the structural arrangement of instrument, Vltrasonic device is away from single card microcomputer, and made electromagnetic screen, but in interface board all is contained in same housing.During instrument work, expelling plate is to dash receiver and probe while transponder pulse signal, probe converts pulse signal to ultrasound wave, and by contact and be coated with the couplant surface measurements ultrasound wave is injected workpiece, receive its bottom surface once or the secondary reflection ripple, be converted to pulse signal again and give the dash receiver amplification, then with the corresponding pulses signal generated time square wave of directly sending here by expelling plate, and then input the time is put logic card and is amplified, form the counting square wave, the photo-coupler input port of input interface plate photoelectric isolating circuit, enter the counter input port of single card microcomputer through photocoupler set by resistance R 5, single card microcomputer is counted the counting square wave, and judge current place gear according to the height of input I～IV gear level, and change each functional measurement desired parameters, utilize the Poisson ratio of the detected materials of importing, corresponding data such as density and thickness, elastic modulus by the command calculations workpiece of importing, the velocity of sound or thickness, and the result shown.The relative error of utilizing this Instrument measuring elastic modulus, the velocity of sound and thickness is all less than ± 1%.The E value that for example records steel is 211GPa, and its relative error is ± 0.9%.
Embodiment 2
Use the described analyzer of embodiment 1, but its microcomputer is a DVCC-51DB type single-chip microcomputer, and has printer, can measure elastic modulus, the velocity of sound and the thickness of solid material equally, and the result shown or print.
Claims (5)
1, a kind of multi-functional elastic modulus tester, it is characterized in that having Vltrasonic device, interface board and microcomputer, Vltrasonic device is launched ultrasound wave to workpiece when instrument is worked, and receive the reflection wave of its bottom surface, carry out the switching between pulse signal and ultrasound wave, the generated time square wave is amplified, and forms the counting square wave and imports MICROCOMPUTER PROCESSING by interface board, measures elastic modulus, the velocity of sound and the thickness of workpiece.
2, the analyzer according to claim 1 is characterized in that interface board has photoelectric isolating circuit.
3, the analyzer according to claim 2, it is characterized in that the interface board photoelectric isolating circuit is formed by connecting by photo-coupler IC1, IC2, driving switch K and resistance R 1～R10, its driving switch K is coaxial with the driving switch of Vltrasonic device, the light emitting diode of photo-coupler is connected to Vltrasonic device, phototriode is connected to microcomputer, and the two common-battery source not.
4,, it is characterized in that microcomputer is a single card microcomputer according to claim 1 or 2 or 3 described analyzers.
5,, it is characterized in that microcomputer is a single-chip microcomputer according to claim 1 or 2 or 3 described analyzers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234166 CN2147534Y (en) | 1992-09-24 | 1992-09-24 | Multi-function modulus of elasticity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234166 CN2147534Y (en) | 1992-09-24 | 1992-09-24 | Multi-function modulus of elasticity tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2147534Y true CN2147534Y (en) | 1993-11-24 |
Family
ID=33776313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92234166 Expired - Fee Related CN2147534Y (en) | 1992-09-24 | 1992-09-24 | Multi-function modulus of elasticity tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2147534Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338461C (en) * | 2005-01-11 | 2007-09-19 | 胡英成 | Woods and wooden composite material elastic modulus non-destructive checkers |
| CN100338462C (en) * | 2005-01-11 | 2007-09-19 | 胡英成 | Woods and wooden composite material shearing modulus non destructive checkers |
| CN100451542C (en) * | 2004-10-29 | 2009-01-14 | 丰田自动车株式会社 | Method for determining machining residual thickness |
| CN1975370B (en) * | 2005-11-22 | 2012-07-04 | 通用电气公司 | Method for ultrasonic elastic modulus calculation and imaging |
| CN103018112A (en) * | 2012-11-23 | 2013-04-03 | 西南交通大学 | Method for adopting bend test to test tensile elasticity modulus of material |
| CN108226300A (en) * | 2017-12-21 | 2018-06-29 | 苏州佳世达电通有限公司 | The method for detecting of ultrasound scanner head and ultrasonic conductive medium |
| CN108286952A (en) * | 2017-12-13 | 2018-07-17 | 大连理工大学 | A kind of coating layer thickness, density and longitudinal wave velocity ultrasonic inversion method simultaneously |
-
1992
- 1992-09-24 CN CN 92234166 patent/CN2147534Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451542C (en) * | 2004-10-29 | 2009-01-14 | 丰田自动车株式会社 | Method for determining machining residual thickness |
| CN100338461C (en) * | 2005-01-11 | 2007-09-19 | 胡英成 | Woods and wooden composite material elastic modulus non-destructive checkers |
| CN100338462C (en) * | 2005-01-11 | 2007-09-19 | 胡英成 | Woods and wooden composite material shearing modulus non destructive checkers |
| CN1975370B (en) * | 2005-11-22 | 2012-07-04 | 通用电气公司 | Method for ultrasonic elastic modulus calculation and imaging |
| CN103018112A (en) * | 2012-11-23 | 2013-04-03 | 西南交通大学 | Method for adopting bend test to test tensile elasticity modulus of material |
| CN103018112B (en) * | 2012-11-23 | 2015-06-03 | 西南交通大学 | Method for adopting bend test to test tensile elasticity modulus of material |
| CN108286952A (en) * | 2017-12-13 | 2018-07-17 | 大连理工大学 | A kind of coating layer thickness, density and longitudinal wave velocity ultrasonic inversion method simultaneously |
| CN108286952B (en) * | 2017-12-13 | 2019-11-22 | 大连理工大学 | A kind of coat thickness, density and longitudinal wave velocity ultrasonic inversion method simultaneously |
| CN108226300A (en) * | 2017-12-21 | 2018-06-29 | 苏州佳世达电通有限公司 | The method for detecting of ultrasound scanner head and ultrasonic conductive medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |