CN200953041Y - Piezo-resistance tester - Google Patents
Piezo-resistance tester Download PDFInfo
- Publication number
- CN200953041Y CN200953041Y CN 200620099110 CN200620099110U CN200953041Y CN 200953041 Y CN200953041 Y CN 200953041Y CN 200620099110 CN200620099110 CN 200620099110 CN 200620099110 U CN200620099110 U CN 200620099110U CN 200953041 Y CN200953041 Y CN 200953041Y
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- CN
- China
- Prior art keywords
- tester
- switch controller
- vdr
- electrode holder
- dependent resistor
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- Expired - Fee Related
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Abstract
This utility model relates to one piezoresistance tester that includes mains switch, dial, signal amplifier, output circuit, working status stage, digital display tube and earth wire. It is characterized in that the tester is also furnished with photoelectric switch controller and electrode clamp. The dial is also installed with electrode clamp interfaces and backup interfaces that are connected to the photoelectric switch controller and electrode clamp or alarm respectively. The optical fiber probe of the photoelectric switch controller is installed beside the electrode clamp. Clamping pieces are inserted between two clamping pieces and the optical fiber probe of the photoelectric switch controller senses the tested components on the clamping piece, automatically reads the data and converts the photoelectric data into electric signals for display on the dial. The electrodes will measure and judge if the product is conforming. This tester increases the measuring speed, overcomes the distortion of readings in case of pen measurement and guarantees product quality.
Description
Technical field
The utility model relates to a kind of testing tool of electronic component measuring technique, particularly voltage dependent resistor (VDR).
Background technology
The production of voltage dependent resistor (VDR) is suppressed except substrate, high temperature burn till and electrode by beyond the silver, parameter testing (the pressure sensitive voltage of voltage dependent resistor (VDR) finished product, leakage current, pressure ratio) is important link, the half-finished parameter testing of voltage dependent resistor (VDR) of minor diameter has at present had the ripe automatic sorting measuring machine of piezoresister, this instrument be by gear train (drive plate) with semiconductor the piezoresistive wafer of the minor diameter after silver-plated deliver to automatic pressure-sensitive measurement point pen and carry out measuring voltage, leakage current, parameters such as voltage ratio, then by entering negative pressure straw, qualified and underproof piezoresister is selected respectively, the piezoresistive wafer that the space of drive plate will not detected continues to pass to automatic pressure-sensitive measurement point pen to be measured, so circulation.Measurement for large diameter piezoresistive wafer (element that is used for lightning-protected product mostly), at present mainly be that the model that adopts changzhou city lightning protection Electronics Co., Ltd. of Strong Jet to produce is the pressure-sensitive tester of CJ1001A, this pressure-sensitive tester also is to use the mode of a some pressure-sensitive measurement to advance toward operating workers piezoresistive wafer is put on the test backing plate, with a some point, parameters such as the pressure sensitive voltage that one side watches the instruments, leakage current, voltage ratio, tell qualified defectively, and then take out second and carry out a pen.The disadvantage of this measuring method is in the measuring operation use, a point pressure-sensitive measurement products speed is slower, the manual test procedure operation is loaded down with trivial details, be not easy to the workman and carry out the product selecting operation in enormous quantities, and since the pressure-sensitive of artificial point in operating process as misoperation, not in place to the click of silver strip, the weight of point can not all be unified at every turn, thereby cause and measure numerical value and actual deviation arranged, influenced product quality.
Summary of the invention
The purpose of this utility model provides a kind ofly can pass through photoelectric technology, the manual some pen of pressure-sensitive tester is become the method that the machinery pressure is touched, and will measure numerical value and pass to automatically in the pressure-sensitive tester, tell qualified and underproof product, carry soon product and measured separation velocity, guaranteed the product quality of dispatching from the factory.
The technical solution of the utility model realizes in the following manner:
1, voltage dependent resistor (VDR) tester, comprise power switch, dial plate, signal amplification circuit, output circuit, duty gear, digital display tube, ground wire etc., be characterized in: this voltage dependent resistor (VDR) tester also is provided with optoelectronic switch controller and electrode holder, correspondence is equipped with electrode holder interface and spare interface on dial plate, these interfaces are received optoelectronic switch controller and electrode holder respectively, and the fibre-optical probe that the optoelectronic switch controller picks out is installed in the next door of electrode holder.Traditional output line of selecting an output line and measuring backing plate is adapted as receives two ends by two metal intermediate plates.
Above-described optoelectronic switch controller, comprise a fibre-optical probe, fiber amplifier, relay, parts such as output line, fibre-optical probe is installed in the next door of electrode holder, signal by fibre-optical probe perception detected element outputs to fiber amplifier, fiber amplifier outputs to relay coil again with the signal amplification, relay tip (normally opened contact) is connected to output line to the instrument test button, receive the signal amplification circuit in the instrument, connect the digital display tube on the panel board then, the panel board of pressure-sensitive tester just can show pressure sensitive voltage, leakage current, pressure ratio numerical value reading.
The utility model can suitably improve the circuit of pressure-sensitive tester, selected pressure sensitive voltage, leakage current, the isoparametric numerical value of pressure ratio, receive adjusting knob, set every batch of product numerical value, alarm lamp or hummer are installed, when piezoresistive wafer pressure sensitive voltage, the leakage current measured, when pressure ratio numerical value does not meet setting value, have different pilot lamp bright on the gauge dial, or send the buzzing alarm sound.So not only carried soon product and measured separation velocity, solved the some pen simultaneously and measured the survey measurements problem of dtmf distortion DTMF that causes.
This pressure-sensitive tester can also adopt existing pressure-sensitive tester to reequip, and also can redesign, and consists predominantly of metal intermediate plate, optoelectronic switch controller and signal amplification, parameter demonstration, warning circuit and device and just can realize.
The method of operating and the measuring process of measurement piezoresistive wafer of the present utility model are: manually intermediate plate is inserted between two intermediate plates, the fibre-optical probe perception intermediate plate of phototube has tested element, automatic reading of data, convert photooptical data to electric signal, be reflected on the panel board, electrode is measured simultaneously, if piezoresistive wafer is being measured normal value, the workman just is put into qualified box, if send abnormal pilot lamp on the panel board, or alarm buzzer sounds, and is substandard product, and the workman just is dropped into it in waste product box.
Compared with prior art, progress of the present utility model is: replace pen point platform with the intermediate plate scaffold tower, so not only carry soon product and measured separation velocity, solve the some pen simultaneously and measured the survey measurements problem of dtmf distortion DTMF that causes, pressure-sensitive tester is after repacking, product is measured sorting output and can be doubled, and has improved product and measured sorting quality, has guaranteed the product quality of dispatching from the factory.
Description of drawings
Fig. 1 is the structural representation of the utility model voltage dependent resistor (VDR) tester.
Fig. 2 is an optoelectronic switch controller architecture schematic diagram.
Embodiment
As shown in Figure 1: the dial plate of voltage dependent resistor (VDR) tester and existing tester are basic identical, also be that power switch 1 is arranged, constant voltage adjusting knob 2, positive and negative reversing switch 3, duty gear 4,5,6, digital display tube or liquid crystal numberal tube 7,8,9, steady current shelves 10, ground connection outside line 14, voltage range 17, test voltage shelves 18,19,20, parts such as current range shelves 21,22,23,24.But this voltage dependent resistor (VDR) tester also is equipped with the spare interface of electrode holder interface 14,15,25 and 26,27 below dial plate, these interfaces are received optoelectronic switch controller 28 and electrode holder 29 respectively, and the fibre-optical probe 30 that optoelectronic switch controller 28 picks out is installed in the next door of electrode holder 29.The 16th, spare interface, be used to install alarm lamp or hummer, alarm lamp or hummer can directly be installed on the dial plate, or by 16 interface be informed of a case warning lamp or hummer, electrode holder 29 adopts the copper sheet or the spring clip of good springiness, and piezoresistive wafer is put into after the electrode holder, the fibre-optical probe 30 automatic reading of data of phototube, convert photooptical data to electric signal, be reflected on the panel board.
As shown in Figure 2: the optoelectronic switch controller of voltage dependent resistor (VDR) tester comprises fibre-optical probe 30, fiber amplifier 31 and relay 33, and the direct current of the AC power transformation rectification output stability and safety that civil power is 220 volts is supplied with fiber amplifier 31 and relay 33 work.The signal that the output line of relay 33 is received voltage dependent resistor (VDR) tester inside amplifies and the measurement video data.
Claims (4)
1, a kind of voltage dependent resistor (VDR) tester, comprise power switch, dial plate, signal amplification circuit, output circuit, duty gear, digital display tube, ground wire, it is characterized in that: this voltage dependent resistor (VDR) tester also is provided with optoelectronic switch controller (28) and electrode holder (29), electrode holder interface and spare interface also are installed on dial plate, these interfaces are received optoelectronic switch controller (28) and electrode holder (29) respectively, and the fibre-optical probe (30) that optoelectronic switch controller (28) picks out is installed in the next door of electrode holder (29).
2, voltage dependent resistor (VDR) tester according to claim 1, it is characterized in that: optoelectronic switch controller (28) comprises fibre-optical probe (30), fiber amplifier (31), relay (33), fibre-optical probe (30) is installed in the next door of electrode holder (29), signal by fibre-optical probe (30) perception detected element outputs to fiber amplifier (31), the fiber amplifier (31) that signal amplifies is exported relay termination (33) coil, relay (33) contact is connected to output line and outputs to signal amplification circuit, connects the digital display tube on the panel board then.
3, voltage dependent resistor (VDR) tester according to claim 1 is characterized in that: electrode holder (29) adopts the intermediate plate of elastic copper sheet or band spring.
4, voltage dependent resistor (VDR) tester according to claim 1 is characterized in that: interface (16) alarm lamp or hummer or that be informed of a case warning lamp or hummer is installed on the dial plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099110 CN200953041Y (en) | 2006-09-20 | 2006-09-20 | Piezo-resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099110 CN200953041Y (en) | 2006-09-20 | 2006-09-20 | Piezo-resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953041Y true CN200953041Y (en) | 2007-09-26 |
Family
ID=38811342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620099110 Expired - Fee Related CN200953041Y (en) | 2006-09-20 | 2006-09-20 | Piezo-resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953041Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183717A (en) * | 2010-12-29 | 2011-09-14 | 淄博盛康电气有限公司 | Four-probe piezoresistor tester and grading test method thereof |
-
2006
- 2006-09-20 CN CN 200620099110 patent/CN200953041Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183717A (en) * | 2010-12-29 | 2011-09-14 | 淄博盛康电气有限公司 | Four-probe piezoresistor tester and grading test method thereof |
| CN102183717B (en) * | 2010-12-29 | 2013-05-29 | 淄博盛康电气有限公司 | Four-probe piezoresistor tester and grading test method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 Termination date: 20150920 |
|
| EXPY | Termination of patent right or utility model |