CN203672982U - Single-channel optoelectronic coupler testing instrument - Google Patents
Single-channel optoelectronic coupler testing instrument Download PDFInfo
- Publication number
- CN203672982U CN203672982U CN201320609247.4U CN201320609247U CN203672982U CN 203672982 U CN203672982 U CN 203672982U CN 201320609247 U CN201320609247 U CN 201320609247U CN 203672982 U CN203672982 U CN 203672982U
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- binding post
- resistance
- circuit board
- keyswitch
- key switch
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Abstract
The utility model relates to a single-channel optoelectronic coupler testing instrument comprising a testing instrument outer shell, wherein the front face of the outer shell is provided with a press key switch S1 and a press key switch S2, and a test circuit board is fixedly mounted in the outer shell. A light emitting diode, an adjustable electric resistor adjusting rod, and wire connecting columns A, B, C and D on the test circuit board run through reserved circular holes of the front face of the outer shell. A battery box is mounted on the back face of the test circuit board in the outer shell, and two number seven ordinary batteries are placed in the battery box and therefore a 3V direct current power source is formed. The positive electrode of the 3V direct current power source is in series connection with an end of the press key switch S1. In one route, the press key switch S1 is connected with the wire connecting column A after being connected with the press key switch S2, an adjustable electric resistor and an electric resistor R1 in series. In the other route, the press key switch S1 is connected with the wire connecting column B after being connected with the electric resistor R2 in series. The wire connecting column C is grounded. The wire connecting column D is grounded after being connected with the light emitting diode in series. The single-channel optoelectronic coupler testing instrument is characterized by independent power supply, portability, practicality and convenience, simple structure, and testing accuracy.
Description
Technical field
The utility model relates to field tests, particularly a kind of single channel photoelectrical coupler tester.
Background technology
Photoelectrical coupler is as circuit isolating device, plays signal isolation, coupled transfer effect is widely used in the each field of the commercial production such as household electrical appliance, frequency converter.When if the electronic equipment of having applied photoelectrical coupler above-mentioned breaks down, tester is in failure diagnostic process, usually need to judge the quality of photoelectrical coupler, common method is to utilize two multimeter tests, a multimeter is measured photoelectrical coupler input end with R*1, another multimeter is measured photoelectric coupler output end with R*100, in the time of input end conducting, the pointer of output terminal multimeter has swing, judge that photoelectrical coupler is normal, this test mode is inaccurate, and easily erroneous judgement, affects testing efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of single channel photoelectrical coupler tester of simple in structure and accurate judgement.
The utility model adopts following technical scheme: comprise tester shell, outer casing frontispiece is provided with keyswitch S1, keyswitch S2, testing circuit board is fixedly housed in shell, LED on testing circuit board, adjustable resistance Rp adjuster bar, binding post A, binding post B, binding post C, post D pass from the reserved circular hole of outer casing frontispiece; Battery case is equipped with at the back side of shell build-in test circuit board, and it is testing circuit board power supply that No. 7 common batteries of in-built two joints of battery case form 3V direct supply; 3V DC power anode is connected one end with keyswitch S1 in testing circuit board, keyswitch S1Yi road is connected with binding post A with after keyswitch S2, adjustable resistance Rp, resistance R 1 series connection, another road of keyswitch S1 is connected with binding post B with after resistance R 2 series connection, binding post C ground connection, post D connect with LED after ground connection; When test, the anode of single channel photoelectrical coupler to be measured, collector, negative electrode, emitter are connected with binding post A, binding post B, binding post C, post D respectively.
Further, described adjustable resistance Rp is 220 Ω adjustable resistances, and resistance R 1 is 220 Ω resistance, and resistance R 2 is 330 Ω resistance.
Positive technique effect of the present utility model: the utility model is simple in structure, independent current source power supply, is easy to carry, easy to use.After single channel photoelectrical coupler pin to be measured and binding post A, binding post B, binding post C, post D are connected, adjust adjustable resistance Rp resistance, according to LED, brightness changes to judge that whether photoelectrical coupler is normal, measures accurately.
Brief description of the drawings
Accompanying drawing 2 is the utility model circuit theory diagrams.
Embodiment
As shown in accompanying drawing 1 and Fig. 2, the utility model comprises: tester shell, outer casing frontispiece is provided with keyswitch S1, keyswitch S2, testing circuit board is fixedly housed in shell, LED on testing circuit board, adjustable resistance Rp adjuster bar, binding post A, binding post B, binding post C, post D pass from the reserved circular hole of outer casing frontispiece; Battery case is equipped with at the back side of shell build-in test circuit board, and it is testing circuit board power supply that No. 7 common batteries of in-built two joints of battery case form 3V direct supply; 3V DC power anode is connected one end with keyswitch S1 in testing circuit board, keyswitch S1Yi road is connected with binding post A with after keyswitch S2, adjustable resistance Rp, resistance R 1 series connection, another road of keyswitch S1 is connected with binding post B with after resistance R 2 series connection, binding post C ground connection, post D connect with LED after ground connection; When test, the anode of single channel photoelectrical coupler to be measured, collector, negative electrode, emitter are connected with binding post A, binding post B, binding post C, post D respectively.In preferred embodiment, adjustable resistance Rp is 220 Ω adjustable resistances, and resistance R 1 is 220 Ω resistance, and resistance R 2 is 330 Ω resistance.
In the time that reality is tested, the anode of single channel photoelectrical coupler to be measured, collector, negative electrode, emitter are connected with binding post A, binding post B, binding post C, post D respectively, then the switch S 1 that pushes button, power connection, LED does not work, after the switch S that pushes button 2, if LED is lighted, and while adjusting adjustable resistance Rp resistance value, the luminous intensity of LED can change, illustrate that photoelectrical coupler is normal, vice versa.
Claims (2)
1. single channel photoelectrical coupler tester, comprise tester shell, it is characterized in that: outer casing frontispiece is provided with keyswitch S1, keyswitch S2, testing circuit board is fixedly housed in shell, light emitting diode (LED) on testing circuit board, adjustable resistance (Rp) adjuster bar, binding post A, binding post B, binding post C, post D pass from the reserved circular hole of outer casing frontispiece; Battery case is equipped with at the back side of shell build-in test circuit board, and it is testing circuit board power supply that No. 7 common batteries of in-built two joints of battery case form 3V direct supply; 3V DC power anode is connected one end with keyswitch S1 in testing circuit board, keyswitch S1Yi road is connected with binding post A with after keyswitch S2, adjustable resistance (Rp), resistance R 1 series connection, another road of keyswitch S1 is connected with binding post B with after resistance R 2 series connection, binding post C ground connection, post D connect with light emitting diode (LED) after ground connection; When test, the anode of single channel photoelectrical coupler to be measured, collector, negative electrode, emitter are connected with binding post A, binding post B, binding post C, post D respectively.
2. single channel photoelectrical coupler tester according to claim 1, is characterized in that described adjustable resistance (Rp) is 220 Ω adjustable resistances, and resistance R 1 is 220 Ω resistance, and resistance R 2 is 330 Ω resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320609247.4U CN203672982U (en) | 2013-09-29 | 2013-09-29 | Single-channel optoelectronic coupler testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320609247.4U CN203672982U (en) | 2013-09-29 | 2013-09-29 | Single-channel optoelectronic coupler testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672982U true CN203672982U (en) | 2014-06-25 |
Family
ID=50969260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320609247.4U Expired - Fee Related CN203672982U (en) | 2013-09-29 | 2013-09-29 | Single-channel optoelectronic coupler testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067987A (en) * | 2015-09-23 | 2015-11-18 | 周云侠 | Optoelectronic coupler performance detector |
-
2013
- 2013-09-29 CN CN201320609247.4U patent/CN203672982U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067987A (en) * | 2015-09-23 | 2015-11-18 | 周云侠 | Optoelectronic coupler performance detector |
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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: 20140625 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |