Automatic calibration system for gatherer of current and voltage analog quantities
A technology of current and voltage collectors is applied in the field of automatic calibration systems for current and voltage analog collectors to achieve the effects of improving production efficiency, reducing production costs and reducing accuracy requirements
Inactive Publication Date: 2012-02-15
DATCENT TECH
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to propose an automatic calibration system for current and voltage analog quantity collectors, which can solve the problem of manual compensation of the current measurement unit in the production process and improve the measurement accuracy of the product. , reduce the labor intensity of production
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Embodiment 1
[0018] This embodiment provides an automatic calibration system for current and voltage analog quantity collectors. The system is connected as figure 1 As shown, it includes a calibration management module, a standard meter device and a standard source output device; the calibration management module is connected to the standard meter device, the standard source output device and the analog quantity collector through an RS232 cable.
[0019] When measuring current, the connection of this system is as follows: figure 2 As shown, the current output terminal of the standard source output device is connected to the current input terminal of the standard meter device, the current output terminal of the standard meter device is connected to the current input terminal of the analog quantity collector, and the current output terminal of the analog quantity collector is connected to the standard source output device current input terminal.
[0020] When measuring voltage, the connect...
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The invention relates to a calibration system of a signal gatherer, more particularly to an automatic calibration system for a gatherer of current and voltage analog quantities. The system comprises a calibration management module, a standard meter apparatus and a standard source output apparatus. The calibration management module is connected with the standard meter apparatus, the standard source output apparatus and an analog quantity gatherer through an RS232 cable; and the standard source output apparatus, the standard meter apparatus and the analog quantity gatherer are connected with each other. The standard source output apparatus outputs a current signal or a voltage signal to provide a signal source for the standard meter apparatus and the analog quantity gatherer; the standard meter apparatus transmits a current actual value or a voltage actual value to the calibration management module; the analog quantity gatherer transmits an uncompensated measurement result of the current or the voltage to the calibration management module; the calibration management module obtains the actual value and the measured value of the current or the voltage; and N actual values and N measured values of the current or the voltage form a measuring curve of an analog quantity gatherer; and the analog quantity gatherer carries out compensation calculation to obtain a measuring result. According to the invention, a problem on manual compensation of a current measurement unit during the production process can be solved; a measurement accuracy of the product can be improved; and a labor intensity for production can also be reduced.
Description
technical field [0001] The invention relates to a calibration system for a signal collector, in particular to an automatic calibration system for a current and voltage analog quantity collector. Background technique [0002] In the past, the debugging of the measurement unit of the current analog quantity collector was quite troublesome, requiring more experienced debuggers to observe the difference between the measured value and the standard value (the actual value measured with a standard meter) at multiple measurement points in the entire measurement interval. difference, and then manually input the difference to the measurement unit for compensation. Too much human participation brings difficulty to debugging and increases labor intensity, and it may not be done at one time, because the measured value is constantly beating, so The difference is also constantly changing. Manual operation is easy to compensate for failures and fail to meet the design requirements. The oper...
Claims
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Inventor 吕海军仲健
Owner DATCENT TECH