CN1050092A - Supersonic flaw detector with liquid crystal display - Google Patents
Supersonic flaw detector with liquid crystal display Download PDFInfo
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- CN1050092A CN1050092A CN 90108123 CN90108123A CN1050092A CN 1050092 A CN1050092 A CN 1050092A CN 90108123 CN90108123 CN 90108123 CN 90108123 A CN90108123 A CN 90108123A CN 1050092 A CN1050092 A CN 1050092A
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- disposal system
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
A kind of ultra-sonic defect detector substitutes oscillatron by LCDs and comes display waveform, little power consumption, and waveform is clear, and is easy to operate, and machine volume is little, and is in light weight, is easy to carry to carry out site work, is suitable for the flaw detection operation of on-the-spot internal tank especially.
Description
The present invention relates to the UT (Ultrasonic Testing) instrument, be used for the Non-Destructive Testing of material.
At present both at home and abroad to the Non-Destructive Testing of metal material inherent vice ultra-sonic defect detector commonly used.The groundwork principle of this kind instrument is that the probe by ultrasonic generator sends ultrasound wave, this ultrasound wave reflects after entering metal material again, receive reflected signal by receiver, reflected signal is handled, its waveform is shown on the fluorescent screen of oscillatron, judge the internal soundness of material from the variation of waveform, as domestic Shantou City ultrasonic electronic instrument company, the ultra-sonic defect detector of productions such as West Germany K.K company all belongs to this type.The major defect of such ultra-sonic defect detector is:
1. owing to adopt oscillatron as display device, so the volume of instrument is bigger, weight is heavier, is not easy to carry, and especially is not suitable for on-the-spot in the flaw detection operation of the inside of container (as the internal weld seams flaw detection of spherical tank).
2. power consumption is bigger.So because of bigger with oscillatron power consumption.General battery can only use about 4 hours continuously, promptly will charge, and is not easy to site work.
3. the ambient light influence is big.It is bigger that its sharpness of the waveform that shows on the fluorescent screen is influenced by the brightness of environment.When operating at the scene, then display waveform is darker as ambient brightness big (as the fine day in field), is not easy to waveform is carried out observation analysis.
It is less to the objective of the invention is to develop a kind of power consumption, and waveform is clear, and volume is less, portable ultra-sonic defect detector.
Ultra-sonic defect detector of the present invention is by ultrasonic generator, and signal receives and disposal system, waveform oscilloscope, and operating system, power supply five parts are formed, and said waveform oscilloscope is the matrix liquid-crystal display screen that has driver.Said signal receives and disposal system is to analyze computing by microcomputer to reception and through the signal of pre-process (amplification, decay, detection), obtains driving the disposal system of the required data of liquid crystal display display waveform.
Ultra-sonic defect detector principle of work of the present invention is as follows:
When starting working, CPU sends instruction, requires synchronizer to provide a synchronous trigger pulse to radiating circuit, makes radiating circuit send a branch of ultrasound wave by transducer.This ultrasound wave is received after reflecting by measured workpiece, and is amplified by amplifying circuit, decay, and pre-process such as detection are delivered to signal A/D converter then and are converted the required digital signal of microcomputer to.This signal is sent among the RAM of microcomputer together with the address that address code generator produced and the control signal of controller, carries out computing then, becomes the required signal of LCD driver and is added to liquid crystal display and makes its display waveform.
Description of drawings:
Fig. 1 is the principle of work block scheme of ultra-sonic defect detector of the present invention.
Fig. 2 is a ultra-sonic defect detector signal processing system schematic block circuit diagram of the present invention.
Fig. 3 is the circuit theory diagrams of ultra-sonic defect detector signal processing system of the present invention.
Accompanying drawings embodiment is as follows:
Ultra-sonic defect detector of the present invention is by ultrasonic generator, signal processing system, and waveform oscilloscope, operating system, power supply five parts are formed.Said ultrasonic generator is made up of radiating circuit and probe, can adopt normally used ultrasonic generator circuit of general ultra-sonic defect detector and probe.Said signal processing system is made up of signal receiving circuit (amplification, decay, detection) and digital processing system, wherein receiving circuit is that general common circuit is not described herein, microprocessor adopts 8031, waveform oscilloscope adopts Japanese import MDF5001 lattice lcd screen, and power unit is common dc inverter.Operating system has: 1. damping capacity select to turn round 2. figure left and right displacement key 3. figure compression expansion key 4. the levelling that 5. gains of snap-action key 6. suppress to align 7. power supply and indicate 8. 9. probe interface of power switch.
This ultra-sonic defect detector signal digital disposal system is by A/D CPU, RAM, EPROM, clock generator, controller, address code generator, synchronizer a organizes three-state transceiver, b group three-state transceiver is formed, wherein CPU adopts 8031, and A/D is CA3306, and RAM is DIT7188, EPROM adopts 2764/128, clock generator is made up of 74HC04, and synchronizer is made up of 74HC04, and address code generator is made up of four eight homophase three-state buffer 74L244 and four 74LS193, controller by or door 74HC32 and reverser 74HC04 form a, each is made up of two groups of three-state transceivers of b three same-phase three-state transceiver 74HC245.
When the work of this ultra-sonic defect detector began, at first clock generating complete machine synchronizing pulse was sent to CPU, A/D, controller, CPU sends the command request synchronizer and provides a synchronous trigger pulse to radiating circuit, makes radiating circuit send a branch of ultrasound wave by transducer, is received after this ultrasonic reflections.Received signal is through amplifying, and decay enters A/D after the pre-process such as detection and converts digital signal to.Meanwhile cpu instruction pins b group transceiver, opens a group transceiver, and instruction control unit is sent to address code generator with time clock and produces the address, and command request RAM reads in the address of A/D data converted, address code generator.After a branch of ultrasonic signal collection was intact, cpu instruction pinned a group transceiver and opens b group transceiver, and the data that RAM stored are carried out computing, obtains driving required data of liquid crystal display and address, and on liquid crystal display display waveform.
Therefore this ultra-sonic defect detector dwindles machine volume owing to adopt liquid crystal display to replace the oscillatron display waveform greatly, and power consumption descends, and the waveform clear display is easy to operate, is convenient to use in the site work.
Claims (4)
1, a kind of ultra-sonic defect detector of being formed by ultrasonic generator, signal processing system, waveform oscilloscope, operating system power supply, it is characterized in that described waveform oscilloscope is the matrix liquid-crystal display screen that has driver, described signal receives and disposal system is to analyze computing by microcomputer to reception and through the signal of pre-process (amplification, decay, detection), obtains driving the disposal system of the required data of liquid crystal display display waveform.
2, by the said defectoscope of claim 1, it is characterized in that said signal digital disposal system by A/D, CPU, RAM, EPROM clock generator, controller, address code generator, synchronizer, a organizes three-state transceiver, and b group three-state transceiver is formed.
3, by claim 1,2 said defectoscopes is characterized in that said LCDs is Japanese MDF5001.
4, by claim 1,2 said defectoscopes is characterized in that the address code circuit of said signal digital disposal system is made up of four eight homophase three-state buffer 74L244 and four 74LS193.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90108123 CN1018482B (en) | 1990-09-30 | 1990-09-30 | Supersonic flaw detector with liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90108123 CN1018482B (en) | 1990-09-30 | 1990-09-30 | Supersonic flaw detector with liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1050092A true CN1050092A (en) | 1991-03-20 |
| CN1018482B CN1018482B (en) | 1992-09-30 |
Family
ID=4880867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90108123 Expired CN1018482B (en) | 1990-09-30 | 1990-09-30 | Supersonic flaw detector with liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018482B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458908A (en) * | 2014-11-24 | 2015-03-25 | 太原科技大学 | Detection device and method based on remote control aircraft |
| CN107991387A (en) * | 2017-10-31 | 2018-05-04 | 天津恒枫东晟科技有限公司 | A kind of pipe ultrasonic waveguide ripple detecting system |
-
1990
- 1990-09-30 CN CN 90108123 patent/CN1018482B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458908A (en) * | 2014-11-24 | 2015-03-25 | 太原科技大学 | Detection device and method based on remote control aircraft |
| CN107991387A (en) * | 2017-10-31 | 2018-05-04 | 天津恒枫东晟科技有限公司 | A kind of pipe ultrasonic waveguide ripple detecting system |
| CN107991387B (en) * | 2017-10-31 | 2021-07-20 | 天津恒枫东晟科技有限公司 | Pipeline ultrasonic guided wave detecting system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1018482B (en) | 1992-09-30 |
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