CN203870154U - Electric measurement system for cable fixture - Google Patents
Electric measurement system for cable fixture Download PDFInfo
- Publication number
- CN203870154U CN203870154U CN201420308087.4U CN201420308087U CN203870154U CN 203870154 U CN203870154 U CN 203870154U CN 201420308087 U CN201420308087 U CN 201420308087U CN 203870154 U CN203870154 U CN 203870154U
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- CN
- China
- Prior art keywords
- circuit
- control circuit
- electrical connection
- output terminal
- inductive probe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005259 measurement Methods 0.000 title abstract 2
- 230000001939 inductive effect Effects 0.000 claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 24
- 230000005669 field effect Effects 0.000 claims description 8
- 238000000819 phase cycle Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Abstract
The utility model discloses an electric measurement system for a cable fixture. The system comprises an induced circuit, a control circuit and an indication circuit. The induced circuit comprises an inductive probe and a hot-line display. An output end of the inductive probe is electrically connected with an input end of the control circuit. An output end of the control circuit is electrically connected with an input end of the hot-line display. The indication circuit contains an input circuit and an indication display. An output end of the input circuit is electrically connected with an input end of the control circuit. An output end of the control circuit is electrically connected with a liquid crystal display. When the inductive probe senses that a cable is electrified, an electric signal is transmitted to the control circuit. The control circuit judges the electric signal and controls lightening of the hot-line display according to a judgment result and sends a hot-line warning. Through a definition of a switching cable of an input circuit and through programs which are set in the control circuit in advance, indication of the cable is displayed on the indication display, and potential safety hazard of temporary protection is eliminated.
Description
Technical field
The utility model relates to the survey electric system of cable clamp.
Background technology
At present both at home and abroad, processing for cable end provisional protection, the mode that all adopts adhesive plaster to be temporarily wound around insulation is measured attaching.For the also good solution of neither one on means of defence.For the sign problem of cable in attaching, be all generally by manually write down temporarily, also because there is so many setup errors and problem.
Utility model content
Problem to be solved in the utility model is to provide the survey electric system of cable clamp, has not only eliminated the potential safety hazard on provisional protection, has solved the charged prompting of cable and the definition of the sign of cable simultaneously.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: the survey electric system of cable clamp, comprise sensor circuit, control circuit and sign circuit, described sensor circuit comprises inductive probe and charged demonstration, the output terminal of described inductive probe and the electrical connection of the input end of control circuit, the output terminal of described control circuit and the electrical connection of the input end of charged demonstration, described sign circuit comprises input circuit and indicates and shows, the output terminal of described input circuit and the electrical connection of the input end of control circuit, the output terminal of described control circuit and LCDs electrical connection.Inductive probe senses that cable is charged, and by electric signal transmission, to control circuit, control circuit judges electric signal and according to the lighting of the charged demonstration of judged result control, sends charged prompting; Switch the definition of cable by input circuit, and by being arranged in advance the internal processes of control circuit, indicating the sign that shows cable in demonstration, eliminated the potential safety hazard on provisional protection.
Improved, described inductive probe is by buffer circuit and control circuit electrical connection, and the output terminal of described inductive probe and the input end of buffer circuit are electrically connected, the output terminal of described buffer circuit and the electrical connection of the output terminal of control circuit.Simulating signal inductive probe being sensed by buffer circuit is converted into digital data transmission to control circuit.
Improved, described inductive probe is by amplifying circuit and buffer circuit electrical connection, and the output terminal of described inductive probe and the input end of amplifying circuit are electrically connected, and the output terminal of described amplifying circuit is connected with the input end of buffer circuit.Amplifying circuit to inductive probe to signal amplify processing.
Improved, described input circuit comprises the first button for defining line, for defining the second button of phase sequence and for defining the 3rd button of current/voltage, the output terminal of described button and the electrical connection of the input end of control circuit.Switch the definition of carrying out cable by three buttons, by being arranged in advance the internal processes of control circuit, indicating the sign that shows cable in demonstration.
Improved, described control circuit is DSP control circuit and memory circuit, described DSP control circuit and the two-way electrical connection of memory circuit.DSP control circuit can be stored the sign of input, prevents that, just in case power down or system are closed by mistake, after recovering, the sign of system can normally show.
The grid improved, described inductive probe is field effect transistor.
Improved, the described charged light emitting diode that is shown as.
Improved, described sign is shown as LCDs.
Improved, described buffer circuit is A/D converter.
Improved, described amplifying circuit is triode.
Beneficial effect:
Adopt after technique scheme, the survey electric system of this utility model cable clamp, inductive probe senses that cable is charged, by electric signal transmission, to control circuit, control circuit judges electric signal and according to the lighting of the charged demonstration of judged result control, sends charged prompting; Switch the definition of cable by input circuit, and by being arranged in advance the internal processes of control circuit, indicating the sign that shows cable in demonstration, eliminate the potential safety hazard on provisional protection, by the charged prompting function of fixture, improve the consciousness of the charged installation of attaching personnel, while simplifying attaching, indicate the loaded down with trivial details of record, selection indicates record, and unified record indicates.
Brief description of the drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1 is the structural representation of the survey electric system of the utility model cable clamp;
Fig. 2 is the circuit diagram of the utility model sensor circuit.
Embodiment
As shown in Figure 1, the survey electric system of cable clamp, comprise sensor circuit 1, control circuit 2 and indicate circuit 3, described sensor circuit comprises inductive probe 11, amplifying circuit 12, buffer circuit 13 and charged demonstration 14, described control circuit comprises DSP control circuit 21 and memory circuit 22, and described sign circuit comprises input circuit 31 and indicates demonstration 32:
As shown in Figure 2, the output terminal of described inductive probe and the electrical connection of the input end of amplifying circuit, the output terminal of described amplifying circuit and the electrical connection of the input end of buffer circuit, the input end electrical connection of the output terminal of described buffer circuit and DSP control circuit, the output terminal of described DSP control circuit and the electrical connection of the input end of charged demonstration, in the present embodiment, described inductive probe is the grid of field effect transistor, described amplifying circuit is triode, described buffer circuit is A/D converter, the described charged light emitting diode that is shown as, described light emitting diode is in series with normal open switch 15, the output terminal electrical connection of described normal open switch and DSP control circuit is opened and closed by the control of DSP control circuit, the grid of field effect transistor is from space electric field senses measured signal, after amplifying, triode is transferred to A/D converter, A/D converter changes into digital data transmission to DSP control circuit by signal, DSP control circuit control lumination of light emitting diode shows, R1 is the pull-up resistor of field effect transistor, resistance can suitably be adjusted according to the electric current of field effect transistor, require source electrode, voltage U sd between drain electrode in the time of non-inductive signal a little less than 0.7V, triode just ends, light emitting diode does not work, R2 is the current-limiting resistance of light emitting diode, by current limit within the ratings of 15～20mA, field effect transistor must make the grid of field effect transistor as far as possible away from miscellaneous part while installation, preferably unsettledly do not contact any parts, because it is equivalent to an antenna, be used for responding to electric field around, if want to improve the electric sensitivity of survey, can be welded with the long short-term of 25～45mm at grid, at this moment survey that electricity can whether it charged measuring apart from tested AC power cord 0.4m place,
The output terminal of described input circuit and and the input end electrical connection of DSP control circuit, the output terminal of described DSP control circuit and sign show electrical connection, in the present embodiment, described input circuit comprises the first button for defining line, for defining the second button of phase sequence and for defining the 3rd button of current/voltage, the output terminal of described button and the electrical connection of the input end of control circuit, described sign is shown as LCDs, make to show in LCDs A phase voltage inlet wire or B phase voltage inlet wire or C phase voltage inlet wire or A phase current inlet wire or B phase current inlet wire or C phase current inlet wire or the outlet of A phase voltage or the outlet of B phase voltage or the outlet of C phase voltage or the outlet of A phase current or the outlet of B phase current or the outlet of C phase current by the switching of three buttons,
The output terminal of described DSP control circuit and the electrical connection of the input end of memory circuit are stored the unlabeled data of output circuit input in memory circuit into, and the unlabeled data in memory circuit is read in the input end of described DSP control circuit and the electrical connection of the output terminal of memory circuit.
Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (10)
1. the survey electric system of cable clamp, it is characterized in that: comprise sensor circuit (1), control circuit (2) and sign circuit (3), described sensor circuit comprises inductive probe (11) and charged demonstration (14), the output terminal of described inductive probe and the electrical connection of the input end of control circuit, the output terminal of described control circuit and the electrical connection of the input end of charged demonstration, described sign circuit comprises input circuit (31) and indicates demonstration (32), the output terminal of described input circuit and the electrical connection of the input end of control circuit, the output terminal of described control circuit and sign show electrical connection.
2. the survey electric system of cable clamp according to claim 1, it is characterized in that: described inductive probe is by buffer circuit (13) and control circuit electrical connection, the output terminal of described inductive probe and the electrical connection of the input end of buffer circuit, the output terminal of described buffer circuit and the electrical connection of the output terminal of control circuit.
3. the survey electric system of cable clamp according to claim 2, it is characterized in that: described inductive probe is by amplifying circuit (12) and buffer circuit electrical connection, the output terminal of described inductive probe and the electrical connection of the input end of amplifying circuit, the output terminal of described amplifying circuit is connected with the input end of buffer circuit.
4. the survey electric system of cable clamp according to claim 1, it is characterized in that: described input circuit comprises the first button for defining line, for defining the second button of phase sequence and for defining the 3rd button of current/voltage the output terminal of described button and the electrical connection of the input end of control circuit.
5. the survey electric system of cable clamp according to claim 4, is characterized in that: described control circuit is DSP control circuit and memory circuit, described DSP control circuit and the two-way electrical connection of memory circuit.
6. according to the survey electric system of the arbitrary described cable clamp of claim 1 to 5, it is characterized in that: the grid that described inductive probe is field effect transistor.
7. according to the survey electric system of the arbitrary described cable clamp of claim 1 to 5, it is characterized in that: the described charged light emitting diode that is shown as.
8. according to the survey electric system of the arbitrary described cable clamp of claim 1 to 5, it is characterized in that: described sign is shown as LCDs.
9. according to the survey electric system of the cable clamp described in claim 2 or 3, it is characterized in that: described buffer circuit is A/D converter.
10. the survey electric system of cable clamp according to claim 3, is characterized in that: described amplifying circuit is triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308087.4U CN203870154U (en) | 2014-06-10 | 2014-06-10 | Electric measurement system for cable fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308087.4U CN203870154U (en) | 2014-06-10 | 2014-06-10 | Electric measurement system for cable fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203870154U true CN203870154U (en) | 2014-10-08 |
Family
ID=51651093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308087.4U Active CN203870154U (en) | 2014-06-10 | 2014-06-10 | Electric measurement system for cable fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203870154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049137A (en) * | 2014-06-10 | 2014-09-17 | 国家电网公司 | Electricity measurement system for cable clamp |
-
2014
- 2014-06-10 CN CN201420308087.4U patent/CN203870154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049137A (en) * | 2014-06-10 | 2014-09-17 | 国家电网公司 | Electricity measurement system for cable clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |