CN2593201Y - Analogue-digital signal conversion control panel of high-tension wire tester - Google Patents
Analogue-digital signal conversion control panel of high-tension wire tester Download PDFInfo
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- CN2593201Y CN2593201Y CN 02293446 CN02293446U CN2593201Y CN 2593201 Y CN2593201 Y CN 2593201Y CN 02293446 CN02293446 CN 02293446 CN 02293446 U CN02293446 U CN 02293446U CN 2593201 Y CN2593201 Y CN 2593201Y
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- signal conversion
- digital signal
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- high pressure
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- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides an analogue-digital signal conversion control board of a high-voltage wire tester. The utility model comprises a constant current source generating circuit, a high voltage generating circuit and an analogue-digital signal conversion circuit and is used for causing a high-voltage wire tester to generate high and low voltage test signals and converting an analog signal of a test loop into a digital signal which can be identified by a computer.
Description
Technical field
The utility model is relevant a kind of high pressure wire rod test machine modulus signal conversion and control plate, be meant especially as high pressure wire rod test machine to produce the high and low pressure test signal, and the simulating signal in conversion testing loop is the discernible digital signal of computing machine.
Background technology
Because after the manufacturing of conventional high-tension wire rod finishes, test the yield of wire rod and the resistance value that voltage turn-on produces for high pressure wire rod turn-on power, often can't utilize computing machine to show and the result and the data of discrimination test, therefore the high pressure wire rod is detecting the effect that can't reach robotization and high accuracy in the operation, certainly will cause the artificial careless mistake that detects of dealer, and the artificial very big difference that detects quality, if will reach detected value very accurately, must pay comparatively expensive cost burden and do not meet economic benefit.
Summary of the invention
Shortcoming in view of prior art, the utility model provides a kind of high pressure wire rod test machine modulus signal conversion and control plate, its nationality is by operational amplifier in-phase end input reference power supply, anti-phase termination switching tube, constitute voltage comparator, change the end of oppisite phase current potential by regulating resistance, thereby change the conducting state of switching tube, to reach the output steady current; In addition by a kind of pulse width adjuster, by changing the size of resistance value, to change the input pulse of switch triode (high-power), switch triode (high-power) is operated under the HF switch state, and transformer leaves with certain proportion with regard to pulse low pressure and is pressed into high voltage pulse and is rectified into HV high pressure output through diode, electric capacity; The MD, the DN signal that are used to the self-test loop again are sent to comparer and do differential amplification after two follower impedance couplings, being sent to the A/D conversion chip again after amplifying from the output signal of comparer changes, so, integral body can reach as high pressure wire rod test machine and produce the high and low pressure test signal, and the simulating signal in conversion testing loop is the discernible digital signal of computing machine.
Because the utility model mainly is to become digital signal etc. by test with constant current source generating circuit, circuit for producing high voltage and analog signal conversion, produce the high and low pressure test signal as high pressure wire rod test machine, and the simulating signal in conversion testing loop is the discernible digital signal of computing machine, therefore really can improve the scarce fraud that known high pressure wire test is difficult for, can reach and detect accurate, easy effect.
Description of drawings
Fig. 1 is that test of the present utility model produces circuit theory diagrams with constant current source.
Fig. 2 is a circuit for producing high voltage schematic diagram of the present utility model.
Fig. 3 is that analog signal conversion of the present utility model becomes the digital signal fundamental diagram.
Fig. 4 A～4D is control panel circuit theory diagrams of the present utility model.
Embodiment
At first, please cooperate and consult shown in Fig. 1, Fig. 4 A, a kind of high pressure wire rod test machine modulus signal conversion and control plate of the present utility model, be primarily characterized in that: operational amplifier in-phase end input reference power supply, anti-phase termination switching tube 2SA1048 constitutes voltage comparator, by regulating R
xResistance changes the end of oppisite phase current potential, thereby changes the conducting state of 2SA1048, to reach at UP end output steady current.
See also shown in Fig. 2, Fig. 4 B, a kind of high pressure wire rod test machine modulus signal conversion and control plate of the present utility model, it is characterized in that: TL494 is a pulse width adjuster, by changing R
xThe size of resistance value to change the input pulse of 2SC3039, is operated under the HF switch state 2SC3039, and transformer leaves with 1: 80 ratio with regard to pulse low pressure and is pressed into high voltage pulse and is rectified into the HV high pressure through diode, electric capacity.
See also again shown in Fig. 3, Fig. 4 A, a kind of high pressure wire rod test machine modulus signal conversion and control plate of the present utility model, it is characterized in that: from MD, the DN signal of test loop, after V5A, V5B follower impedance coupling, be sent to comparer V6A and do differential amplification,, after V6B amplifies, be sent to A/D conversion chip 1674 and change R from the output signal of V6A
xBe that the V6B enlargement factor is regulated resistance.
Fig. 4 C, Fig. 4 D are each interface unit and the input/output interface in the utility model control panel circuit.
Above-mentioned preferred embodiment has been carried out specific description to technical characterictic of the present utility model, the personage who only is familiar with this technology is when can the utility model being changed and revise not breaking away under spirit of the present utility model and the principle, and these changes with revise, all should be covered by in the category that claims define.
Claims (2)
1, a kind of high pressure wire rod test machine modulus signal conversion and control plate, comprise constant current source generating circuit, circuit for producing high voltage and analog/digital signal conversion circuit, it is characterized in that: described constant current source generating circuit is by operational amplifier in-phase end input reference voltage, anti-phase termination switching tube, constitute voltage comparator, change the end of oppisite phase current potential by regulating resistance, thereby change the conducting state of switching tube, to reach at output (UP) end output steady current; Described circuit for producing high voltage is by a pulse width adjuster, by changing the size of resistance value, to change the input pulse of switch large power triode, the high power switch triode is operated under the HF switch state, transformer leaves with certain proportion with regard to pulse low pressure and is pressed into high voltage pulse output; Described analog/digital signal conversion circuit is that the signal (MD, DN) that is used to the self-test loop is sent to comparer (V6A) and does differential amplification after two followers (V5A, V5B) impedance matching, and the signal after will amplifying again is sent to the A/D conversion chip and changes.
2, high pressure wire rod test machine modulus signal conversion and control plate as claimed in claim 1, it is characterized in that: described transformer low voltage to the ratio of boosting of high pressure is 1: 80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02293446 CN2593201Y (en) | 2002-12-20 | 2002-12-20 | Analogue-digital signal conversion control panel of high-tension wire tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02293446 CN2593201Y (en) | 2002-12-20 | 2002-12-20 | Analogue-digital signal conversion control panel of high-tension wire tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2593201Y true CN2593201Y (en) | 2003-12-17 |
Family
ID=33751396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02293446 Expired - Fee Related CN2593201Y (en) | 2002-12-20 | 2002-12-20 | Analogue-digital signal conversion control panel of high-tension wire tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2593201Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101542305B (en) * | 2006-11-22 | 2012-01-04 | 爱德万测试株式会社 | Test device and test module |
-
2002
- 2002-12-20 CN CN 02293446 patent/CN2593201Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101542305B (en) * | 2006-11-22 | 2012-01-04 | 爱德万测试株式会社 | Test device and test module |
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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 |