CN204705692U - A kind of portable cable thread break detector - Google Patents
A kind of portable cable thread break detector Download PDFInfo
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- CN204705692U CN204705692U CN201520460549.9U CN201520460549U CN204705692U CN 204705692 U CN204705692 U CN 204705692U CN 201520460549 U CN201520460549 U CN 201520460549U CN 204705692 U CN204705692 U CN 204705692U
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Abstract
The utility model discloses a kind of portable cable thread break detector, comprise probe J1, amplifier Q1, Q2, resistance RJ1, R1, R2, R3, R4, electric capacity C1, C2, waveform generator NE7555, light emitting diode D1 and hummer LS1 forms, described probe J1 is connected with amplifier Q1, resistance JR1 connects with amplifier Q1, resistance R2 connects with amplifier Q2, resistance R3, R4 and electric capacity C1 connects, resistance R1, light emitting diode D1 forms flasher circuit, electric capacity C2 and hummer LS1 forms warning circuit, each several part circuit is finally connected with waveform generator NE7555.This field effect transistor sensor detector, small and exquisite, practical and convenient, power consumption is little, also can be used for the occasion such as high voltage testing and electrified body warning.
Description
Technical field
The utility model relates to a kind of electron detection device, especially a kind of detecting device for cable break position.
Background technology
At present, the device category both at home and abroad for detection streamer fault is many, and the direction of research lays particular emphasis on accuracy on the one hand, on the one hand demand equipment essence littleization, always is that is worth a research in this problem of this field.
Summary of the invention
In order to adapt to the growth requirement of the sector, the utility model devises a kind of novel portable cable thread break detector.
To achieve these goals, the technical solution of the utility model is such: a kind of portable cable thread break detector of the utility model, it is characterized in that: comprise probe J1, amplifier Q1, Q2, resistance RJ1, R1, R2, R3, R4, electric capacity C1, C2, waveform generator NE7555, light emitting diode D1 and hummer LS1 forms, described probe J1 is connected with amplifier Q1, resistance JR1 connects with amplifier Q1, resistance R2 connects with amplifier Q2, resistance R3, R4 and electric capacity C1 connects, resistance R1, light emitting diode D1 forms flasher circuit, electric capacity C2 and hummer LS1 forms warning circuit, each several part circuit is finally connected with waveform generator NE7555.
The technical solution of the utility model, compared with product in the bucket of domestic prior art, has the following advantages:
1, this field effect transistor sensor detector, small and exquisite, practical and convenient, power consumption is little;
2, also can be used for the occasion such as high voltage testing and electrified body warning, just sound and light alarm can be sent at distance distance high-voltage electrical network certain distance, about during the following low voltage electric network of distance 500V 0.2 meter, also sound and light alarm can be sent, when grid maintenance personnel carry with secondary detecting device, occur once close to electrified body with regard to acousto-optic alerting signal.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1: the utility model circuit structure diagram.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Embodiment
As Fig. 1, a kind of portable cable thread break detector of the utility model, comprise probe J1, amplifier Q1, Q2, resistance RJ1, R1, R2, R3, R4, electric capacity C1, C2, waveform generator NE7555, light emitting diode D1 and hummer LS1 forms, described probe J1 is connected with amplifier Q1, resistance JR1 connects with amplifier Q1, resistance R2 connects with amplifier Q2, resistance R3, R4 and electric capacity C1 connects, resistance R1, light emitting diode D1 forms flasher circuit, electric capacity C2 and hummer LS1 forms warning circuit, each several part circuit is finally connected with waveform generator NE7555.
The non-inductive signal of Q1 grid is for zero-bias conducting state at ordinary times, makes Q1 also conducting, and the voltage on the 4th pin of at this moment waveform generator NE7555 is less than 0.5V, and thus for the reset mode of low level output, loudspeaker is without the number of notifying.When grid G has alternating current impression forceful electric power signal, the electric current of amplifier Q1, MOSFET is reduced to cut-off, and 2NE3904 also ends simultaneously, voltage elevated contact on waveform generator NE7555 the 4th pin resets, enter concussion duty, LED luminescence instruction, loudspeaker sends sound of notifying.
Add 220V AC power, all the other cable ground wire or zero lines first to before detection tested cable, connect by series connection 100K 1W resistance by the other end of wiring cable, eliminate unnecessary interference.Then connect detecting device power supply, moved in parallel by probe J1 along tested cable, after probe J1 moves past disconnection fault point, induced signal just disappears, and colleague's sound and light alarm blackout, so just have found the position of broken string.
The technical solution of the utility model, compared with product in the bucket of domestic prior art, has the following advantages:
1, this field effect transistor sensor detector, small and exquisite, practical and convenient, power consumption is little;
2, also can be used for the occasion such as high voltage testing and electrified body warning, just sound and light alarm can be sent at distance distance high-voltage electrical network certain distance, about during the following low voltage electric network of distance 500V 0.2 meter, also sound and light alarm can be sent, when grid maintenance personnel carry with secondary detecting device, occur once close to electrified body with regard to acousto-optic alerting signal.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. a portable cable thread break detector, it is characterized in that: comprise probe J1, amplifier Q1, Q2, resistance RJ1, R1, R2, R3, R4, electric capacity C1, C2, waveform generator NE7555, light emitting diode D1 and hummer LS1 form, described probe J1 is connected with amplifier Q1, resistance JR1 connects with amplifier Q1, resistance R2 connects with amplifier Q2, and resistance R3, R4 and electric capacity C1 connect, and resistance R1, light emitting diode D1 form flasher circuit, electric capacity C2 and hummer LS1 forms warning circuit, and each several part circuit is finally connected with waveform generator NE7555.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460549.9U CN204705692U (en) | 2015-07-01 | 2015-07-01 | A kind of portable cable thread break detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460549.9U CN204705692U (en) | 2015-07-01 | 2015-07-01 | A kind of portable cable thread break detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204705692U true CN204705692U (en) | 2015-10-14 |
Family
ID=54285295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520460549.9U Expired - Fee Related CN204705692U (en) | 2015-07-01 | 2015-07-01 | A kind of portable cable thread break detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204705692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156335A (en) * | 2021-05-09 | 2021-07-23 | 武汉捷成电力科技有限公司 | Vortex shedding flowmeter disconnection detection circuit, method, controller and storage medium |
-
2015
- 2015-07-01 CN CN201520460549.9U patent/CN204705692U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156335A (en) * | 2021-05-09 | 2021-07-23 | 武汉捷成电力科技有限公司 | Vortex shedding flowmeter disconnection detection circuit, method, controller and storage medium |
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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: 20151014 Termination date: 20160701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |