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Satellite-borne induction type magnetometer field calibration device

An on-site calibration, inductive technology, applied in the measurement device, the size/direction of the magnetic field, the instrument, etc., can solve the problem of inability to calibrate, and achieve the effect of accurate and reliable value

Active Publication Date: 2021-05-04
中国船舶重工集团有限公司第七一0研究所
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  • Abstract
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Problems solved by technology

[0006] In view of this, the present invention provides an on-site calibration device for a space-borne induction magnetometer. A device for on-site calibration of the inductive magnetometer on

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  • Satellite-borne induction type magnetometer field calibration device
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  • Satellite-borne induction type magnetometer field calibration device

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Embodiment Construction

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] The invention provides an on-site calibration device for a space-borne induction magnetometer, comprising: a three-dimensional translation support, a magnetic shielding module, a momentless coil and an AC constant current source.

[0022] The three-dimensional translation support in the invention is used to support the magnetic shielding device and the momentless coil, and has the functions of lifting and two-dimensional horizontal translation, which can raise the magnetic shielding device to the height of the induction magnetometer, and move the center of the magnetic shielding device Move to coincide with the center of the inductive magnetometer.

[0023] The magnetic shielding module in the invention can realize a non-interference zero magnetic space inside, and can calibrate the noise index of the induction magnetometer.

[0024] The momentless...

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Abstract

The invention discloses a satellite-borne induction type magnetometer field calibration device, relates to the technical field of magnetic measurement instrument metering, and aims to solve the problem that a satellite-borne induction type magnetometer cannot be calibrated after being mounted on a satellite. The calibration device comprises a three-dimensional translation support, a magnetic shielding module, a torque-free coil and an alternating current constant current source. The three-dimensional translation support is used for supporting the magnetic shielding module and the torque-free coil, has the functions of lifting and two-dimensional horizontal translation, and is used for lifting the magnetic shielding module to the height of the induction type magnetometer and moving the center of the magnetic shielding module to coincide with the center of the induction type magnetometer. The magnetic shielding module is internally provided with a zero magnetic space without interference and is used for calibrating the noise index of the induction type magnetometer. The torque-free coil is matched with an alternating current power supply and is used for generating a standard magnetic field with adjustable frequency and magnetic field magnitude and calibrating sensitivity and frequency response characteristic indexes of the induction type magnetometer.

Description

technical field [0001] The invention relates to the technical field of magnetic measuring instruments, in particular to an on-site calibration device for a space-borne induction magnetometer. Background technique [0002] The inductive magnetometer developed based on Faraday's electromagnetic induction principle is currently an important means of space low-frequency magnetic field detection because of its extremely high sensitivity in low-frequency magnetic field measurement. The ESA Cluster constellation, the US Fast satellite, the French Demeter satellite, the US Themis satellite, and China's TC-2, ZH-1 and other satellites are all equipped with inductive magnetometers. Since entering the 21st century, a series of Earth International programs in space, deep space exploration, and seismic electromagnetic sounding all include inductive magnetometers. The inductive magnetometer carried on the satellite is mainly used for low-frequency magnetic field measurement in near-Earth...

Claims

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Application Information

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IPC IPC(8): G01R33/02G01R35/00
CPCG01R33/02G01R35/00
Inventor 李享翟晶晶张学斌孙楚光
Owner 中国船舶重工集团有限公司第七一0研究所
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