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Direct current measuring method based on turn-on type structure

A technology of direct current and measurement method, which is applied to the components of electrical measuring instruments, measuring electricity, measuring devices, etc. It can solve the problems of high cost, inconvenient installation and maintenance, etc., and achieve the effect of convenient installation and maintenance

Inactive Publication Date: 2020-01-10
MIANYANG WEIBO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The present invention is mainly based on the measurement of small DC currents, and the measurement range is tens of mA to hundreds of mA. The measurement of such DC current signals is generally based on magnetic modulation technology, and most of them are based on closed-loop structures, which are inconvenient for installation and maintenance and high in cost.

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  • Direct current measuring method based on turn-on type structure
  • Direct current measuring method based on turn-on type structure
  • Direct current measuring method based on turn-on type structure

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Embodiment Construction

[0027] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0028] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from the scope of this description. Therefore, the protection scope of the present invention is not limited by the following disclosure. limitations of specific examples.

[0029] Please refer to figure 1 , the embodiment of the present application provides a method for measuring direct current based on an open structure, the metho...

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Abstract

The invention discloses a direct current measuring method based on a turn-on type structure. The method comprises the following steps of 1, establishing a direct current measuring device; 2, enablinga measured direct current to pass through the middle of a current transformer of the direct current measuring device; 3, turning on an auxiliary power supply of the device, measuring the measured current by using the started direct current measuring device, and sending a test result in the direct current measuring device to an upper computer through 485; and 4, generating a measurement report based on a measurement result by the upper computer. According to the method, uninterruptible power supply measurement of a small direct current signal can be realized under the condition that the performance is not reduced, and the method is easy to implement.

Description

technical field [0001] The invention relates to the technical field of current detection, in particular to a method for measuring direct current based on an open structure. Background technique [0002] The present invention is mainly based on the measurement of small DC currents, and the measurement range is tens of mA to hundreds of mA. The measurement of such DC current signals is generally based on magnetic modulation technology, and most of them are based on closed-loop structures. Installation and maintenance are inconvenient and costly. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a DC current measurement method based on an open structure. This method can realize continuous measurement of DC small current (tens of mA to hundreds of mA) without degrading performance. Electrical measurement, and the method is easy to implement. [0004] In order to achieve the purpose of the above invention, the presen...

Claims

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Application Information

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IPC IPC(8): G01R19/25G01R15/18G01R15/20G01R1/30G01R1/18
CPCG01R1/18G01R1/30G01R15/18G01R15/20G01R19/2509
Inventor 阳桂蓉戚继飞唐小平吴晓斌王嘉张翅飞
Owner MIANYANG WEIBO ELECTRONICS