CN203745632U - Calibrating system used for electric parameter measuring instrument - Google Patents
Calibrating system used for electric parameter measuring instrument Download PDFInfo
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- CN203745632U CN203745632U CN201320713787.7U CN201320713787U CN203745632U CN 203745632 U CN203745632 U CN 203745632U CN 201320713787 U CN201320713787 U CN 201320713787U CN 203745632 U CN203745632 U CN 203745632U
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Abstract
A calibrating system used for an electric parameter measuring instrument is composed of a program-control power source, a multifunctional standard meter, a communication module and a computer. The program-control power source is connected with the computer through the communication module and transmits calibrated electric parameter signals to the multifunctional standard meter and the to-be-calibrated electric parameter measuring instrument respectively after receiving working instructions sent from the computer. The multifunctional standard meter processes the received calibrated electric parameter signals, obtains a measurement result and transmits the measurement result to the computer through the communication module. The to-be-calibrated electric parameter measuring instrument processes the received calibrated electric parameter signals, obtains a measurement result and transmits the measurement result to the computer through the communication module. The computer compares the measurement result from the multifunctional standard meter with the measurement result from the to-be-calibrated electric parameter measuring instrument, obtains an indication error of the to-be-calibrated electric parameter measuring instrument, then stores calibrated electric parameters and a calibration result to a data base automatically and generates an original record and a calibration certificate.
Description
Technical field
The utility model belongs to electrical measurement field, and particularly a kind of alternating current parameter measured to electrical parameter measuring instrument carries out (comprising alternating current, alternating voltage, frequency, phase place, power, electric energy etc.) system of auto-calibration.
Background technology
Electrical parameter measuring instrument be a kind of in scientific research, produce in widely used electricity metering outfit, along with the develop rapidly of electronic devices and components technology, computer technology, its range of measuring alternating current parameter constantly expands, precision improves constantly.In order to guarantee the accuracy of its measurement, need regular or irregular calibration.
Calibration about electrical parameter measuring instrument, disclosed prior art comprises with calibration power source or standard scale calibrates, but calibration power source can only output current≤80A, frequency≤69Hz standard electric parameter signal, and the AC signal that can only calibrate 45Hz～65Hz that standard scale has, although the AC signal that can calibrate 400Hz having, but be limited by power power-supply, when 400Hz, can not export current signal more than 20A, and be difficult to meet the calibration requirements of current electrical parameter measuring instrument.And be difficult to the auto-calibration of electrical parameter measuring instrument.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of electrical parameter measuring instrument calibration system is provided, to solve the auto-calibration problem of wide range electrical parameter measuring instrument.
Electrical parameter measuring instrument calibration system described in the utility model, is comprised of program control power power-supply, Multi-functional standard table, communication module and computing machine; Program control power power-supply is connected with computing machine by communication module, and respectively with Multi-functional standard table, be connected by school electrical parameter measuring instrument, after receiving the work order that computing machine sends, respectively to Multi-functional standard table, be calibrated electrical parameter measuring instrument and send the electrical quantity signal being calibrated; Multi-functional standard table is connected with computing machine by communication module, the electrical quantity signal that is calibrated receiving is processed and is obtained measurement result, and by communication module, send measurement result to computing machine; By school electrical parameter measuring instrument, by communication module, be connected with computing machine, the electrical quantity signal that is calibrated receiving processed and obtained measurement result, and by communication module, send measurement result to computing machine; Computing machine is to the measurement result from Multi-functional standard table with from being compared by the measurement result of school electrical parameter measuring instrument, draw by the error of indication of school electrical parameter measuring instrument, then the electrical quantity being calibrated and calibration result autostore are arrived to its database, and generate raw readings and calibration certificate.
Electrical parameter measuring instrument calibration system described in the utility model, its program control power power-supply is single-phase program control power power-supply or three-phase program-controlled power power-supply, its Multi-functional standard table is single-phase multifunctional table or three-phase multifunctional table.
The electrical quantity that single-phase multifunctional table is measured comprises frequency, voltage, electric current, phase place and power factor, and the range of each electrical quantity is: frequency 50Hz or 400Hz, voltage 0.2V～1000V, electric current 10mA～100A, phase place
power factor-1.0～+ 1.0.
The electrical quantity that three-phase multifunctional table is measured comprises frequency, voltage, electric current, phase place and power factor; When the range of frequency is 50Hz, the range of voltage is that the range of 7.5V～750V, electric current is that the range of 10mA～100A, phase place is
the range of power factor is-1.0～+ 1.0; When the range of frequency is 400Hz, the range of voltage is that the range of 7.5V～750V, electric current is that the range of 20mA～100A, phase place is
the range of power factor is-1.0～+ 1.0.
The utlity model has following beneficial effect:
1, electrical parameter measuring instrument calibration system described in the utility model has realized auto-calibration, and the error of having avoided manual calibration to exist is large, inefficient problem.
2, electrical parameter measuring instrument calibration system described in the utility model has been expanded measurement range, with regard to single-phase AC electrical quantity, the range that the range that the range of frequency can reach 400Hz, voltage can reach 1000V, electric current can reach 100A, with regard to three-phase alternating current electrical quantity, the range that the range that the range of frequency can reach 400Hz, voltage can reach 750V, electric current can reach 100A.
3, electrical parameter measuring instrument calibration system described in the utility model has realized the high-acruracy survey of 50Hz and 400Hz electric parameter (number), single-phase calibration system power frequency (50Hz) error <0.01%, 400Hz error <0.02%, three-phase calibration system power frequency (50Hz) error <0.02%,, 400Hz error <0.05%.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of electrical parameter measuring instrument calibration system described in the utility model.
In figure, 1-program control power power-supply, 2-Multi-functional standard table, 3-communication module, 4-computing machine, 5-electrical parameter measuring instrument.
Embodiment
Below by embodiment, also by reference to the accompanying drawings electrical parameter measuring instrument calibration system described in the utility model is described further.
Embodiment 1
In the present embodiment, electrical parameter measuring instrument calibration system structure as shown in Figure 1, is comprised of program control power power-supply 1, Multi-functional standard table 2, communication module 3 and computing machine 4.Described program control power power-supply 1 is single-phase program control power power-supply (model: XC5050, Chinese Shanghai Xin Cheng electronic technology Engineering Co., Ltd produces), described Multi-functional standard table 2 is single-phase multifunctional table (model: 2001B, Chinese yunnan province metrological testing technology research institute produces), described communication module 3 is selected high-speed converters (model: UT-860, Shenzhen Utek Technology Co., Ltd. produces), described computing machine 4 is provided with operating software and calibration software.The electrical quantity that single-phase multifunctional table is measured comprises frequency, voltage, electric current, phase place and power factor, and the range of each electrical quantity is: frequency 50Hz or 400Hz, voltage 0.2V～1000V, electric current 10mA～100A, phase place
power factor-1.0～+ 1.0.
Calibration operation is as follows:
1, by program control power power-supply 1 respectively with Multi-functional standard table 2 with by school electrical parameter measuring instrument 5, be connected, and by communication module 3 by program control power power-supply 1, Multi-functional standard table 2 be connected with computing machine 4 by school electrical parameter measuring instrument 5.
2, on computing machine 4, messaging parameter is set, makes computing machine and program control power power-supply 1, Multi-functional standard table 2 and set up correspondence by school electrical quantity instrument 5, and setup control parameter, calibration program.
3, operation computing machine 4, to program control power power-supply 1, send work order, program control power power-supply 1 is after receiving the work order that computing machine sends, respectively to Multi-functional standard table 2, be calibrated electrical parameter measuring instrument 5 and send the electrical quantity signal being calibrated, Multi-functional standard table 2 pair receives is calibrated electrical quantity signal and processes and obtain measurement result, and by communication module, send measurement result to computing machine, the electrical quantity signal that is calibrated being received by 5 pairs of school electrical parameter measuring instruments is processed and is obtained measurement result, and by communication module, send measurement result to computing machine, computing machine is to the measurement result from Multi-functional standard table 2 with from being compared by the measurement result of school electrical parameter measuring instrument 5, draw by the error of indication of school electrical parameter measuring instrument, then the electrical quantity being calibrated and calibration result autostore are arrived to its database, and generate raw readings and calibration certificate.
Embodiment 2
In the present embodiment, electrical parameter measuring instrument calibration system structure as shown in Figure 1, is comprised of program control power power-supply 1, Multi-functional standard table 2, communication module 3 and computing machine 4.Described program control power power-supply 1 is three-phase program-controlled power power-supply (model: CKY-3, Chinese Shanghai Xin Cheng electronic technology Engineering Co., Ltd produces), described Multi-functional standard table 2 is three-phase multifunctional table (model: 2003, Chinese yunnan province metrological testing technology research institute produces), described communication module 3 is selected high-speed converters (model: UT-860, Shenzhen Utek Technology Co., Ltd. produces), described computing machine 4 is provided with operating software and calibration software.The electrical quantity that three-phase multifunctional table is measured comprises frequency, voltage, electric current, phase place and power factor; When the range of frequency is 50Hz, the range of voltage is that the range of 7.5V～750V, electric current is that the range of 10mA～100A, phase place is
the range of power factor is-1.0～+ 1.0; When the range of frequency is 400Hz, the range of voltage is that the range of 7.5V～750V, electric current is that the range of 20mA～100A, phase place is
the range of power factor is-1.0～+ 1.0.
Calibration operation is identical with embodiment 1.
Claims (4)
1. an electrical parameter measuring instrument calibration system, is characterized in that this calibration system is comprised of program control power power-supply (1), Multi-functional standard table (2), communication module (3) and computing machine (4);
Program control power power-supply (1) is connected with computing machine (4) by communication module (3), and respectively with Multi-functional standard table (2), be connected by school electrical parameter measuring instrument (5), after receiving the work order that computing machine sends, respectively to Multi-functional standard table (2), be calibrated electrical parameter measuring instrument (5) and send the electrical quantity signal being calibrated;
Multi-functional standard table (2) is connected with computing machine (4) by communication module (3), the electrical quantity signal that is calibrated receiving is processed and is obtained measurement result, and by communication module, send measurement result to computing machine;
By school electrical parameter measuring instrument (5), be connected with computing machine (4) by communication module (3), the electrical quantity signal that is calibrated receiving processed and obtained measurement result, and by communication module, send measurement result to computing machine;
Computing machine is to the measurement result from Multi-functional standard table (2) with from being compared by the measurement result of school electrical parameter measuring instrument (5), draw by the error of indication of school electrical parameter measuring instrument, then the electrical quantity being calibrated and calibration result autostore are arrived to its database, and generate raw readings and calibration certificate.
2. electrical parameter measuring instrument calibration system according to claim 1, it is characterized in that described program control power power-supply (1) is single-phase program control power power-supply, described Multi-functional standard table (2) is single-phase multifunctional table, the electrical quantity that single-phase multifunctional table is measured comprises frequency, voltage, electric current, phase place and power factor, and the range of each electrical quantity is: frequency 50Hz or 400Hz, voltage 0.2V～1000V, electric current 10mA～100A, phase place
power factor-1.0～+ 1.0.
3. electrical parameter measuring instrument calibration system according to claim 1, it is characterized in that described program control power power-supply (1) is three-phase program-controlled power power-supply, described Multi-functional standard table (2) is three-phase multifunctional table, the electrical quantity that three-phase multifunctional table is measured comprises frequency, voltage, electric current, phase place and power factor, and the range of each electrical quantity is: frequency 50Hz, voltage 7.5V～750V, electric current 10mA～100A, phase place
power factor-1.0～+ 1.0.
4. electrical parameter measuring instrument calibration system according to claim 1, it is characterized in that described program control power power-supply (1) is three-phase program-controlled power power-supply, described Multi-functional standard table (2) is three-phase multifunctional table, the electrical quantity that three-phase multifunctional table is measured comprises frequency, voltage, electric current, phase place and power factor, and the range of each electrical quantity is: frequency 400Hz, voltage 7.5V～750V, electric current 20mA～100A, phase place
power factor-1.0～+ 1.0.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320713787.7U CN203745632U (en) | 2013-11-12 | 2013-11-12 | Calibrating system used for electric parameter measuring instrument |
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| CN201320713787.7U CN203745632U (en) | 2013-11-12 | 2013-11-12 | Calibrating system used for electric parameter measuring instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425184A (en) * | 2015-11-23 | 2016-03-23 | 苏州华电电气股份有限公司 | Automatic calibration system for high-voltage divider |
| CN112462313A (en) * | 2020-11-17 | 2021-03-09 | 天津航空机电有限公司 | Electrical parameter interactive calibration system and method based on Ethernet communication technology |
| CN113156356A (en) * | 2021-05-17 | 2021-07-23 | 河北大学 | Remote calibration system and calibration method for voltage source |
-
2013
- 2013-11-12 CN CN201320713787.7U patent/CN203745632U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425184A (en) * | 2015-11-23 | 2016-03-23 | 苏州华电电气股份有限公司 | Automatic calibration system for high-voltage divider |
| CN112462313A (en) * | 2020-11-17 | 2021-03-09 | 天津航空机电有限公司 | Electrical parameter interactive calibration system and method based on Ethernet communication technology |
| CN112462313B (en) * | 2020-11-17 | 2023-03-14 | 天津航空机电有限公司 | Electrical parameter interactive calibration system and method based on Ethernet communication technology |
| CN113156356A (en) * | 2021-05-17 | 2021-07-23 | 河北大学 | Remote calibration system and calibration method for voltage source |
| CN113156356B (en) * | 2021-05-17 | 2022-03-29 | 河北大学 | Remote calibration system and calibration method for voltage source |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20211112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |