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Resistance measurement method of closed-loop resistor

A technology for measuring resistance and resistors, applied in the direction of measuring resistance/reactance/impedance, measuring devices, measuring electrical variables, etc., can solve the problems of low accuracy and achieve high practicability, simple measurement methods, and optimized measurement methods Effect

Active Publication Date: 2018-08-24
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the application provides a closed-loop resistor resistance measurement method to solve the problem of low accuracy of existing measurement methods

Method used

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  • Resistance measurement method of closed-loop resistor
  • Resistance measurement method of closed-loop resistor
  • Resistance measurement method of closed-loop resistor

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Embodiment Construction

[0012] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0013] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0014] figure 1 It is a schematic flowchart of a method for measuring the resistance value of a closed-loop resistor provided in the embodiment of the present application. The me...

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Abstract

The invention discloses a resistance measurement method of a closed-loop resistor. The method comprises the following steps that the closed-loop resistor to be measured is linked and fixed into a loop; three measurement device access positions, namely, first, second and third positions, are selected in the loop of the closed-loop resistor; a resistance between the first and second positions is measured to obtain a first resistance value; a resistance between the second and third positions is measured to obtain a second resistance value; a resistance between the third and first positions is measured to obtain a third resistance value; and a resistance value of the closed-loop resistor is calculated according to the first, second and third resistance values. Thus, the resistance of the closed-loop resistor can be measured, the process is simple, and the practicality and accuracy are high.

Description

technical field [0001] The present application relates to the technical field of resistance measurement, in particular to a method for measuring the resistance value of a closed-loop resistor. Background technique [0002] The closed-loop resistor is a standard resistor for calibrating clamp-on ground resistance testers. [0003] The clamp ground resistance meter is used in the measurement of ground resistance and loop resistance of electric power, telecommunications, construction, industrial electrical equipment, etc. It is convenient, fast and novel, without disconnecting the grounding down-conductor, without using auxiliary electrodes, can measure the grounding resistance safely and quickly, and can measure grounding faults that cannot be measured by traditional methods, and can be applied to The occasion of measurement. Whether the clamp-on grounding resistance meter meets the technical specifications needs to be measured and tested with a closed-loop resistor. The re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02
CPCG01R27/02
Inventor 张建永岳伟胡耀元贾云涛高扬
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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