CN205280919U - On --spot check gauge of single -phase electric energy meter - Google Patents
On --spot check gauge of single -phase electric energy meter Download PDFInfo
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- CN205280919U CN205280919U CN201521092320.0U CN201521092320U CN205280919U CN 205280919 U CN205280919 U CN 205280919U CN 201521092320 U CN201521092320 U CN 201521092320U CN 205280919 U CN205280919 U CN 205280919U
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- electric energy
- energy meter
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Abstract
The utility model discloses an on - -spot check gauge of single -phase electric energy meter, its relation of connection be the voltage signal collector behind a AD converter respectively with the digital multiplier unit, a select switch connects, pincerlike current sensor behind the 2nd AD converter respectively with the digital multiplier unit, a select switch connects, the digital multiplier unit is connected with the 2nd select switch, a select switch is connected with the 2nd select switch behind the virtual value converter, the singlechip respectively with a select switch, the 2nd select switch, the photoelectricity sampling, man -machine interaction module connects. The utility model discloses an analog signal and data signal's transformation for on - -spot check gauge of single -phase electric energy meter's data are more accurate, stable, and the utility model discloses still have light in weight, small advantage, improve its portability.
Description
Technical field
This utility model relates to electric power detection technical field of tools, particularly relates to a kind of single-phase electric energy meter on-site calibrator.
Background technology
Along with the development of electric utility, getting more and more by electric unit, the electric energy meter that scene is run carries out in time, verification accurately is to ensure that electric power safety, electric energy metrical necessary means accurately. At present, to the mode of electrical energy meter calibration is most or calibration personnel go calibration with powermeter verification instrumeter to scene, due to existing powermeter verification instrumeter many employings analog device, thus weight and volume is all bigger than normal so that electric energy meter on-site calibrator is unfavorable for carrying with.
Utility model content
Main purpose of the present utility model is in that to provide a kind of single-phase electric energy meter on-site calibrator, it is intended to reduces the volume and weight of single-phase electric energy meter on-site calibrator, improves its portability.
For achieving the above object, this utility model provides a kind of single-phase electric energy meter on-site calibrator, including voltage signal collector, pincerlike current sensor, first A/D converter, second A/D converter, digital multiplier, first selects switch, effective value converter, second selects switch, single-chip microcomputer, photoelectricity sampling and human-computer interaction module, described voltage signal collector after the first A/D converter respectively with digital multiplier, first selects switch to connect, described pincerlike current sensor after the second A/D converter respectively with digital multiplier, first selects switch to connect, described digital multiplier and second selects switch to connect, described first selects switch to select switch to be connected with second after effective value converter, described single-chip microcomputer selects switch with first respectively, second selects switch, photoelectricity sampling, human-computer interaction module connects.
Preferably, described pincerlike current sensor includes flexible forceps, 5A pincers and 500A pincers.
Preferably, described single-chip microcomputer adopts AT89S52 type.
Preferably, described first A/D converter adopts AD652 type.
Preferably, described second A/D converter adopts AD652 type.
Preferably, described human-computer interaction module includes display, button.
This utility model is by the transformation of analogue signal and digital signal so that the data of single-phase electric energy meter on-site calibrator are more accurate, stable, and this utility model also has advantage lightweight, that volume is little, improves its portability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model single-phase electric energy meter on-site calibrator;
Fig. 2 is the structural representation of this utility model human-computer interaction module;
Fig. 3 is the structural representation of this utility model single-phase electric energy meter on-site calibrator one embodiment.
Description of reference numerals: 1 is table body, 2 is sensing binding clip, and 5 is button, and 6 is display screen, and 7 is jack, and 8 is sender.
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
This utility model provides a kind of single-phase electric energy meter on-site calibrator, with reference to Fig. 1-3, in one embodiment, this single-phase electric energy meter on-site calibrator includes voltage signal collector, pincerlike current sensor, first A/D converter, second A/D converter, digital multiplier, first selects switch, effective value converter, second selects switch, single-chip microcomputer, photoelectricity sampling and human-computer interaction module, described voltage signal collector after the first A/D converter respectively with digital multiplier, first selects switch to connect, described pincerlike current sensor after the second A/D converter respectively with digital multiplier, first selects switch to connect, described digital multiplier and second selects switch to connect, described first selects switch to select switch to be connected with second after effective value converter, described single-chip microcomputer selects switch with first respectively, second selects switch, photoelectricity sampling, human-computer interaction module connects.
Described voltage signal collector and pincerlike current sensor have been used for the conversion to weak electric signal of the forceful electric power signal, described voltage sampling unit is for being directly accessed single-phase voltage, sampled by precision resistance dividing potential drop, described pincerlike current sensor includes flexible forceps, 5A pincers and 500A pincers, to adapt to the different demands of field-checking. Described first and second A/D converters are 16bit serial a/d transducer, for the analogue signal obtained from voltage signal collector and pincerlike current sensor is converted to digital signal, so that the process of digital device below, digital device has advantage accurate, stable, anti-interference, lightweight, that volume is little compared to analog device. Voltage signal collector, pincerlike current sensor obtain tested voltage and current signal respectively, after A/D changes, select switch to choose measurement voltage or electric current through first on the one hand, and the signal of selection send effective value converter to try to achieve measured virtual value; Two signals are all delivered to digital multiplier and are tried to achieve the power of circuit-under-test on the other hand. This power signal and all deliver to the second selection switch through the voltage of RMS-DC converter circuit or current signal and select measured. Second selects the signal that switch is chosen to send to single-chip microcomputer, and result is sent to human-computer interaction module after processing by single-chip microcomputer. Described single-chip microcomputer can adopt AT89S52 type, and described first and second A/D converters can adopt AD652 type. Described human-computer interaction module includes display, button, tone generator and microphone, can be worked by Voice command tester, facilitate the carrying out of verifying work.
Described single-phase electric energy meter on-site calibrator also includes table body and sensing binding clip, and described sensing binding clip is arranged on the top of table body, can the singlehanded measurement realized electric energy meter. Table body is provided with button, display screen, sender, microphone and jack, it is provided with circuit board in table body, above-mentioned voltage signal collector, the first A/D converter, the second A/D converter, digital multiplier, the first selection switch, effective value converter, the second selection switch, single-chip microcomputer, photoelectricity sampling are respectively provided with on circuit boards, described pincerlike current sensor is arranged on sensing binding clip, and described tone generator is arranged in sender.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in scope of patent protection of the present utility model.
Claims (6)
1. a single-phase electric energy meter on-site calibrator, it is characterized in that, described single-phase electric energy meter on-site calibrator includes voltage signal collector, pincerlike current sensor, first A/D converter, second A/D converter, digital multiplier, first selects switch, effective value converter, second selects switch, single-chip microcomputer, photoelectricity sampling and human-computer interaction module, described voltage signal collector after the first A/D converter respectively with digital multiplier, first selects switch to connect, described pincerlike current sensor after the second A/D converter respectively with digital multiplier, first selects switch to connect, described digital multiplier and second selects switch to connect, described first selects switch to select switch to be connected with second after effective value converter, described single-chip microcomputer selects switch with first respectively, second selects switch, photoelectricity sampling, human-computer interaction module connects.
2. single-phase electric energy meter on-site calibrator as claimed in claim 1, it is characterised in that described pincerlike current sensor includes flexible forceps, 5A pincers and 500A pincers.
3. single-phase electric energy meter on-site calibrator as claimed in claim 1, it is characterised in that described single-chip microcomputer adopts AT89S52 type.
4. single-phase electric energy meter on-site calibrator as claimed in claim 1, it is characterised in that described first A/D converter adopts AD652 type.
5. single-phase electric energy meter on-site calibrator as claimed in claim 1, it is characterised in that described second A/D converter adopts AD652 type.
6. single-phase electric energy meter on-site calibrator as claimed in claim 1, it is characterised in that described human-computer interaction module includes display, button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092320.0U CN205280919U (en) | 2015-12-25 | 2015-12-25 | On --spot check gauge of single -phase electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092320.0U CN205280919U (en) | 2015-12-25 | 2015-12-25 | On --spot check gauge of single -phase electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205280919U true CN205280919U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521092320.0U Expired - Fee Related CN205280919U (en) | 2015-12-25 | 2015-12-25 | On --spot check gauge of single -phase electric energy meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN205280919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406384A (en) * | 2021-06-02 | 2021-09-17 | 国网河北省电力有限公司高邑县供电分公司 | Novel induction type electric energy monitoring device |
-
2015
- 2015-12-25 CN CN201521092320.0U patent/CN205280919U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406384A (en) * | 2021-06-02 | 2021-09-17 | 国网河北省电力有限公司高邑县供电分公司 | Novel induction type electric energy monitoring device |
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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: 20160601 Termination date: 20181225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |