CN201654130U - Automatic measuring and calibrating device of high-impedance measuring apparatus - Google Patents
Automatic measuring and calibrating device of high-impedance measuring apparatus Download PDFInfo
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- CN201654130U CN201654130U CN2010201626151U CN201020162615U CN201654130U CN 201654130 U CN201654130 U CN 201654130U CN 2010201626151 U CN2010201626151 U CN 2010201626151U CN 201020162615 U CN201020162615 U CN 201020162615U CN 201654130 U CN201654130 U CN 201654130U
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Abstract
An automatic measuring and calibrating device of a high-impedance measuring apparatus is connected to the high-impedance measuring apparatus to be detected. The device comprises a simulated high-impedance generator, a central controller and a comparator, wherein the simulated high-impedance generator provides impedance signals, the central controller outputs standard signals and controls the simulated high-impedance generator, and the comparator compares the standard signals with signals to be detected. Besides, an output end of the simulated high-impedance generator is connected to an input end of the high-impedance measuring apparatus to be detected; an output end of the high-impedance measuring apparatus to be detected is connected to a first input end of the comparator; one output end of the central controller is connected to a second input end of the comparator; and an output end of the comparator is connected with a display device. The automatic measuring and calibrating device of the impedance measuring apparatus has the advantages of realizing automatic measurement, saving a large amount of manual work load, transiting detection results from discrete quantity to continuous quantity, and realizing more accurate measurement and larger measurement range.
Description
Technical field
The utility model belongs to automatic fields of measurement, is that a kind of high impedance surveying instrument is measured automatically, calibrating installation specifically, for example various types of electrometers, Insulation Resistance Tester, high resistance measurement instrument or the like is measured and is calibrated.
Background technology
The high impedance surveying instrument is the device that is used to measure the high impedance of various models, has purposes widely, because long-term use, its error can change, cause the inaccurate of measurement result, and need it be measured and calibrate, at present the high impedance surveying instrument to be examined and determine and calibrated and mostly adopt direct current high resistance measurement case, this just requires direct current high resistance measurement case to have good resistance to pressure; Because the Standard resistance range difference of various high impedance surveying instruments is bigger, also need direct current high resistance measurement case to have high range, this has all directly had influence on accuracy and the efficient that impedance measuring Instrument is examined and determine and calibrated, and present resistance box can't provide continuous resistance output, because present resistance box all adopts the mechanical type waver to select resistance, can't realize automatic detection, calibration again.
For example, Insulation Resistance Tester is a kind of high-pressure measurement mechanism, applies high voltage on the testee surface usually, comes the insulating resistance value on Measuring Object surface, therefore need measure, calibrate with special high-pressure measurement mechanism.The range difference of various insulation measurement instrument also needs the high-pressure measurement mechanism of various resistances, and present high-pressure measurement mechanism is problems such as accuracy is not high, inefficiency, the system of being of limited application with regard to having had.
The utility model content
Consider above-mentioned problem, the utility model provides a kind of novel device that the high impedance surveying instrument is measured automatically, calibrated, accuracy height, efficient height.
A kind of high impedance surveying instrument is measured automatically, calibrating installation, be connected to tested high impedance surveying instrument, comprise that one provides the simulation high resistant generator of impedance signal, the central controller of one outputting standard signal and control simulation high resistant generator, the comparer of one standard of comparison signal and tested signal, wherein:
The output terminal of simulation high resistant generator is connected to the input end of tested high impedance surveying instrument, the output terminal of tested high impedance surveying instrument then is connected to the comparer first input end, central controller one output terminal is connected to comparer second input end, and comparator output terminal is connected with display device.
Simulation high resistant generator is existing the existence, and its parameter is: Standard resistance range is
, voltage range is (3-1100) V, adaptable maximum ripple factor: 1%, can adapt to the application in present various high-low pressure surveying instruments field, and its Standard resistance range has also comprised oil conductivity meter tissues needed scope.Simulation high resistant generator sends the simulated impedance signal and gives tested high impedance surveying instrument, tested high impedance surveying instrument is started working, and output detection signal is given the first input end of comparer, second input end of comparer then is connected to central controller, by central controller outputting standard signal, comparer is two signals relatively, and will export the result and be presented on the display device.Like this, the staff can judge whether tested high impedance surveying instrument is normal according to result displayed, if undesired, can calibrate according to result displayed.
Preferably, described central processing unit is a computing machine.The work of computer control simulation high resistant generator, and storage is given comparer with the outputting standard signal, all right control of video harvester images acquired signal.
Preferably, the video acquisition device that also comprises the top, display area that is arranged on tested high impedance surveying instrument.Video acquisition device can be gathered the working signal of tested impedance measurement device, and acquired signal sent to computing machine, computing machine carries out aftertreatment, tested high impedance surveying instrument for inconvenient output detection signal, it is very suitable adopting video acquisition device, it has been avoided direct contact, various danger can not take place, and this is to realize easily for existing video acquisition and image processing techniques.
The high impedance surveying instrument that the utility model provides is measured automatically, calibrating installation has following advantage:
1. realize automatic measurement, saved a large amount of labor workload;
2. make testing result by discrete magnitude to continuous quantity excessively, measure more accurately, measurement range is bigger;
3. improve measurement, calibration efficiency, increased result's reliability and stability;
4. enlarge range of application, can measure and calibrate all impedance measuring Instruments.
Description of drawings
Fig. 1 is the electrical principle block diagram of the utility model embodiment 1;
Wherein, 1, simulation high resistant generator, 2, computing machine, 3, tested oil conductivity meter, 4, comparer.
Embodiment
With infinite embodiment the utility model is further explained, illustrates below.
Embodiment 1
A kind of high impedance surveying instrument is measured automatically, calibrating installation, for example this high impedance surveying instrument is an oil conductivity meter, be used for tested oil conductivity meter is carried out automatic Verification, as shown in Figure 1, comprise a simulation high resistant generator 1, one computing machine 2 is as signal processing apparatus, one comparer 4, one tested oil conductivity meter 3, computing machine 2 connects control simulation high resistant generator 1 by cable, the output terminal of simulation high resistant generator 1 is connected to the input end of tested oil conductivity meter 3, and the output terminal of tested oil conductivity meter 3 then directly is connected to an input end of comparer 4 by cable, and computing machine 2 then is connected to another input end of comparer 4.
Like this, 1 work of computing machine 2 control simulation high resistant generators, for simulation high resistant generator is set initial resistance, the change in resistance value, stop the resistance and the time interval, simulation high resistant generator 1 sends the high resistant signal from the tested oil conductivity meter 3 of trend, tested oil conductivity meter 3 is started working, from trend comparer 4 output detection signal A, simultaneously, computing machine 2 also sends standard signal B from trend comparer 4, comparer compares detection signal A and standard signal B, the output comparative result is given display device, can judge whether tested oil conductivity meter is qualified according to the result, and according to the result oil conductivity meter be calibrated.
Embodiment 2
A kind of high impedance surveying instrument is measured automatically, calibrating installation, this high impedance surveying instrument is measured automatically, calibrating installation is Insulation Resistance Tester, be commonly called megohmmeter or megger, be widely used in measuring the insulation resistance of generator, motor, power transformer, distribution, electrical equipment and other electric devices.The resistance value scope that Insulation Resistance Tester need be measured is very big, and its upper limit may reach 10T Ω.Insulation Resistance Tester is measured automatically, the device of calibration comprises a simulation high resistant generator, one computing machine is as signal processing apparatus, one comparer, computing machine connects control simulation high resistant generator by cable, the output terminal of simulation high resistant generator is connected to the input end of tested Insulation Resistance Tester, the output terminal of tested Insulation Resistance Tester then is connected to an input end of comparer, store standard signal on the computing machine and be connected to another input end of comparer, the output terminal of comparer then is connected to computing machine, is convenient to computer recording, show comparative result.
Like this, the work of computer control simulation high resistant generator, for simulation high resistant generator is set initial resistance, the change in resistance value, stop the resistance and the time interval, simulation high resistant generator sends the high resistant signal from the tested Insulation Resistance Tester of trend, tested Insulation Resistance Tester is started working, and to comparer transmission detection signal, and computing machine sends standard signal to comparer, comparer is detection signal and standard signal relatively, and comparative result sent to computing machine, this result of Computer Storage, and can show comparative result in real time, can calibrate Insulation Resistance Tester according to comparative result.
Claims (4)
- A high impedance surveying instrument measure automatically, calibrating installation, be connected to tested high impedance surveying instrument, it is characterized in that: comprise that one provides the simulation high resistant generator of impedance signal, the central controller of one outputting standard signal and control simulation high resistant generator, the comparer of one standard of comparison signal and tested signal, wherein:The output terminal of simulation high resistant generator is connected to the input end of tested high impedance surveying instrument, the output terminal of tested high impedance surveying instrument then is connected to the comparer first input end, central controller one output terminal is connected to comparer second input end, and comparator output terminal is connected with display device.
- 2. high impedance surveying instrument according to claim 1 is measured automatically, calibrating installation, it is characterized in that: described central processing unit is a computing machine.
- 3. high impedance surveying instrument according to claim 1 and 2 is measured automatically, calibrating installation, it is characterized in that: the video acquisition device that also comprises the top, display area that is arranged on tested high impedance surveying instrument.
- 4. high impedance surveying instrument according to claim 3 is measured automatically, calibrating installation, it is characterized in that: the Standard resistance range of described simulation high resistant generator is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010201626151U CN201654130U (en) | 2010-04-19 | 2010-04-19 | Automatic measuring and calibrating device of high-impedance measuring apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201626151U CN201654130U (en) | 2010-04-19 | 2010-04-19 | Automatic measuring and calibrating device of high-impedance measuring apparatus |
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| CN201654130U true CN201654130U (en) | 2010-11-24 |
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| CN2010201626151U Expired - Fee Related CN201654130U (en) | 2010-04-19 | 2010-04-19 | Automatic measuring and calibrating device of high-impedance measuring apparatus |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813656A (en) * | 2010-04-19 | 2010-08-25 | 中国兵器工业集团第五三研究所 | Method and equipment for automatic calibration of oil conductivity meter |
| CN102298132A (en) * | 2011-05-26 | 2011-12-28 | 福建省计量科学研究院 | Calibrating device of grounding conduction resistance tester |
| CN103543423A (en) * | 2013-10-10 | 2014-01-29 | 广州供电局有限公司 | Simulation calibration method for megameters |
| CN104714166A (en) * | 2013-12-13 | 2015-06-17 | 北汽福田汽车股份有限公司 | System and method for testing multiple resistor analog acquisition passages in device |
| CN104749543A (en) * | 2015-03-26 | 2015-07-01 | 苏州朗博校准检测有限公司 | Calibrating method of general-purpose plug tester |
| CN106066425A (en) * | 2016-07-29 | 2016-11-02 | 中国电子科技集团公司第四十研究所 | A kind of impedance measurement device and the method realizing compensation for calibrating errors thereof |
| CN106154075A (en) * | 2015-04-14 | 2016-11-23 | 致茂电子(苏州)有限公司 | Automatic checkout system and method |
| CN106154199A (en) * | 2016-06-13 | 2016-11-23 | 公安部第研究所 | Energy test analog card magnetic field intensity calibrating installation |
| CN109856581A (en) * | 2019-01-28 | 2019-06-07 | 同济大学 | Automatization test system applied to resistance signal real-time acquisition device performance detection |
| CN111157793A (en) * | 2020-01-13 | 2020-05-15 | 珠海格力电器股份有限公司 | Electric appliance and high-frequency impedance testing method and device thereof |
| CN112986888A (en) * | 2021-04-25 | 2021-06-18 | 武汉磐电科技股份有限公司 | Method and device for calibrating transformer short-circuit impedance tester |
-
2010
- 2010-04-19 CN CN2010201626151U patent/CN201654130U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813656B (en) * | 2010-04-19 | 2013-07-17 | 中国兵器工业集团第五三研究所 | Method and equipment for automatic calibration of oil conductivity meter |
| CN101813656A (en) * | 2010-04-19 | 2010-08-25 | 中国兵器工业集团第五三研究所 | Method and equipment for automatic calibration of oil conductivity meter |
| CN102298132A (en) * | 2011-05-26 | 2011-12-28 | 福建省计量科学研究院 | Calibrating device of grounding conduction resistance tester |
| CN103543423A (en) * | 2013-10-10 | 2014-01-29 | 广州供电局有限公司 | Simulation calibration method for megameters |
| CN103543423B (en) * | 2013-10-10 | 2015-12-23 | 广州供电局有限公司 | Megohmmeter emulation calibration method |
| CN104714166B (en) * | 2013-12-13 | 2017-10-13 | 北汽福田汽车股份有限公司 | To the system and method for multiple resistor-type analog acquisition path testings in equipment |
| CN104714166A (en) * | 2013-12-13 | 2015-06-17 | 北汽福田汽车股份有限公司 | System and method for testing multiple resistor analog acquisition passages in device |
| CN104749543A (en) * | 2015-03-26 | 2015-07-01 | 苏州朗博校准检测有限公司 | Calibrating method of general-purpose plug tester |
| CN104749543B (en) * | 2015-03-26 | 2019-01-01 | 苏州朗博校准检测有限公司 | A kind of calibration method of plug comprehensive tester |
| CN106154075A (en) * | 2015-04-14 | 2016-11-23 | 致茂电子(苏州)有限公司 | Automatic checkout system and method |
| CN106154199A (en) * | 2016-06-13 | 2016-11-23 | 公安部第研究所 | Energy test analog card magnetic field intensity calibrating installation |
| CN106066425A (en) * | 2016-07-29 | 2016-11-02 | 中国电子科技集团公司第四十研究所 | A kind of impedance measurement device and the method realizing compensation for calibrating errors thereof |
| CN106066425B (en) * | 2016-07-29 | 2019-01-08 | 中国电子科技集团公司第四十一研究所 | A kind of impedance measurement device and its method for realizing compensation for calibrating errors |
| CN109856581A (en) * | 2019-01-28 | 2019-06-07 | 同济大学 | Automatization test system applied to resistance signal real-time acquisition device performance detection |
| CN111157793A (en) * | 2020-01-13 | 2020-05-15 | 珠海格力电器股份有限公司 | Electric appliance and high-frequency impedance testing method and device thereof |
| CN111157793B (en) * | 2020-01-13 | 2021-09-14 | 珠海格力电器股份有限公司 | Electric appliance and high-frequency impedance testing method and device thereof |
| CN112986888A (en) * | 2021-04-25 | 2021-06-18 | 武汉磐电科技股份有限公司 | Method and device for calibrating transformer short-circuit impedance tester |
| CN112986888B (en) * | 2021-04-25 | 2021-08-06 | 武汉磐电科技股份有限公司 | Method and device for calibrating transformer short-circuit impedance tester |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20110419 |