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Current parameter calibration system and method based on offset method

A current parameter and calibration system technology, applied in the direction of measuring electrical variables, measuring devices, instruments, etc., can solve the problem of damage to special measuring equipment, and achieve the effects of high accuracy, simple structure, and feasible method

Pending Publication Date: 2019-03-12
西安航天计量测试研究所
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Problems solved by technology

[0003] However, since the current measurement module of this type of special test equipment uses a MOS tube, if the direct calibration method is used, the special test equipment will be damaged, so the direct calibration method cannot be used for calibration

Method used

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  • Current parameter calibration system and method based on offset method
  • Current parameter calibration system and method based on offset method
  • Current parameter calibration system and method based on offset method

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Embodiment Construction

[0033] Below in conjunction with the accompanying drawings and specific embodiments, the specific implementation of the present invention, such as the various components involved, the mutual position and connection relationship between each part, the function and working principle of each part, etc. will be further described in detail.

[0034] from figure 1 It can be seen that the current parameter calibration system based on the offset method in this embodiment mainly includes a measuring instrument, a multi-functional calibration source, a current acquisition and display module, a regulated power supply and a host computer; the current acquisition and display module in this embodiment is a digital multimeter. Both the regulated power supply and the upper computer are connected to the tested equipment, and the regulated power supply is used to provide voltage for the tested equipment; the upper computer is used to read the measured current value of the tested equipment; The ...

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PUM

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Abstract

The invention relates to a current parameter calibration system and method, in particular to a current parameter calibration system and method based on an offset method. The system comprises a measurement instrument, a multifunctional calibration source, a current collection display module, a voltage-stabilized source and an upper computer; the measurement instrument comprises a flux gate currentsensor, a first change-over switch, a second change-over switch, a third change-over switch and a power resistance module; the measurement instrument is further provided with a measured current inputand output interface, a standard current input and output interface and a current measurement input and output interface; a certain proportion of coils wind the original edge and sub edge of the fluxgate current sensor, measured current is in serial connection with the original edge, standard current is in serial connection with the sub edge, by adjusting the standard current, the original edge current and the sub edge current offset each other, and by using a multifunctional calibration source, high-precision measurement is achieved.

Description

technical field [0001] The invention relates to a current parameter calibration system and method, in particular to a current parameter calibration system and method based on an offset method. Background technique [0002] With the development of missile and launch vehicle technology, the requirements for light weight, fast response and high reliability of the solenoid valve for engine opening and closing control are becoming more and more prominent. The projectile / arrow power system relies on the multiple opening and closing of the solenoid valve to realize multiple starts of the engine. The reliability and performance of the solenoid valve determine the success or failure of the engine and its performance level. Solenoid valves are extremely important in engines that start multiple times, especially in attitude-controlled engines. It is precisely because of the use of solenoid valves that repeated starts and pulse work of the engine are realized. In order to ensure the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
CPCG01R35/007
Inventor 孙新新常莹张永攀
Owner 西安航天计量测试研究所
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