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Multi-clamp measurement device and current measurement system

A current measurement device, technology of a measurement device, applied in the direction of measurement devices, measurement of electrical variables, voltage/current isolation, etc., can solve the problems of reduced accuracy of current measurement, and achieve the effect of improving reliability, low cost, and high reliability

Inactive Publication Date: 2019-11-12
KOREA RES INST OF STANDARDS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the clamp-type measuring device does not directly measure the current of the wire but estimates the current based on the magnetic field around the wire, the clamp-type measuring device significantly affects the magnetic field due to external factors, and thus, the measurement accuracy of the current decreases

Method used

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  • Multi-clamp measurement device and current measurement system

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Embodiment Construction

[0029] The drawings showing the preferred embodiment for carrying out the inventive concept are figure 1 .

[0030] Hereinafter, embodiments of the inventive concept may be described in detail and clearly so that those of ordinary skill in the art can easily realize the inventive concept.

[0031] figure 1 is a diagram illustrating a multi-clamp measurement device according to an embodiment of the inventive concept. refer to figure 1 , the multi-clamp measurement device 100 includes a multi-clamp 110 and a current measurement controller 120 .

[0032] The multi-clamp 110 may be coupled to the outer surface of the conductor ML and may be configured to detect a magnetic field Bi generated by current flowing through the conductor ML. For example, if figure 1 As shown, when a current "I" flows through the conductor ML, a magnetic field Bi can be generated by the current "I" around the conductor ML. The multi-clamp 110 may have a structure surrounding the conductor ML (eg, a ...

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Abstract

A multi-clamp measurement device according to the present invention comprises: a multi-clamp including a first and a second iron core configured to output a first and a second magnetic field around aconductor, respectively; and a current measurement controller configured to remove a noise magnetic field around the conductor on the basis of the first and the second magnetic field to detect a current flowing through the conductor.

Description

technical field [0001] The inventive concept relates to current measurement devices, and more particularly, to multi-clamp measurement devices and current measurement systems. Background technique [0002] Electrical measuring devices are measuring devices that measure various characteristics of electronic components or electronic equipment, such as voltage, current, and resistance. Typically, various characteristics of electronic components or electronic equipment are detected by directly attaching a measurement device to the electronic component or electronic equipment. [0003] For example, the current supplied to an electronic component or electronic device is measured by cutting a wire (or conductor) supplying the electronic component or electronic device with current and connecting a measuring device to the wire so severed. In order to solve problems such as cutting electric wires, clamp-type measuring devices that measure electric fields (or magnetic fields) generate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/18
CPCG01R15/186G01R15/202G01R15/207G01R15/18G01R15/183
Inventor 金奎泰郑在甲
Owner KOREA RES INST OF STANDARDS & SCI