Low-frequency magnetic field measurement method and device, electronic equipment and storage medium

A technology of low-frequency magnetic field and measurement method, which is applied to measurement devices, magnetic field measurement using electromagnetic devices, magnetic field size/direction, etc., to achieve the effect of improving the applicability

Active Publication Date: 2020-08-11
BEIJING SENFU SCI & TECH CO LTD
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  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a low-frequency magnetic field measurement method, device, electronic equipment and storage medium for the problem that the prior art can only measure the weighted value of a standard version limit

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  • Low-frequency magnetic field measurement method and device, electronic equipment and storage medium
  • Low-frequency magnetic field measurement method and device, electronic equipment and storage medium
  • Low-frequency magnetic field measurement method and device, electronic equipment and storage medium

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Embodiment Construction

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0055] In order to realize the real-time switching of various standard limit values ​​that can be standard versions, apply to the weighted measurement of standard limit values ​​of various standard versions, and meet the domestic GB8702-2014 standard limit value requirements, this application provides a low-frequency magnetic field measurement For an example o...

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Abstract

The embodiment of the invention provides a low-frequency magnetic field measurement method and device, electronic equipment and a storage medium. The method comprises the steps that a preset digital weighting processing mode is applied, weighting processing is conducted on a time domain signal of a target low-frequency magnetic field based on a target standard limit value, a corresponding digitaltime domain waveform signal is obtained, the digital weighting processing mode corresponds to standard limit values of multiple standards, and the target standard limit value is one of the standard limit values of the multiple standards; performing digital detection processing on the digital time domain waveform signal to obtain a corresponding digital detection voltage; and scale calibration isperformed on the sampling result of the digital detection voltage to obtain the magnetic field amplitude of the target low-frequency magnetic field and/or the percentage of the magnetic field amplitude relative to the target standard limit value. The method can be suitable for weighing measurement of standard limit values of various standard versions, so that the application universality of low-frequency magnetic field measurement can be effectively improved, and the accuracy and reliability of low-frequency magnetic field measurement can be guaranteed.

Description

technical field [0001] The present application relates to the technical field of magnetic field measurement, in particular to a low-frequency magnetic field measurement method, device, electronic equipment, and storage medium. Background technique [0002] The low frequency magnetic field refers to the magnetic field in the frequency range of 1Hz-100kHz. Low-frequency magnetic field measurement usually uses a magnetic field coil antenna as a sensor. The magnetic field coil antenna receives the space magnetic field and converts it into a voltage signal. For subsequent measurements, according to the measurement requirements, time-domain measurement methods and frequency-domain measurement methods are used. The time-domain measurement method obtains the magnitude of the magnetic field or the percentage of the magnetic field magnitude relative to the standard limit value, while the frequency-domain measurement method obtains the frequency spectrum of the measurement signal. For...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/00G01R33/02G01R33/10G01R33/06
CPCG01R33/0029G01R33/0206G01R33/10G01R33/06
Inventor 陆德坚
Owner BEIJING SENFU SCI & TECH CO LTD
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