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Omnidirectional helium optical pumping magnetic force instrument

A magnetometer and helium optical pump technology, applied in the field of magnetic detection, can solve the problems of large background gradient in the application of orthogonal multi-magnetic sensors, complex and large self-orientation servo system, large steering error, etc., to reduce weight, simplify structure, improve The effect of applying ability

Active Publication Date: 2014-05-28
杭州瑞声海洋仪器有限公司
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Problems solved by technology

However, in the above two methods, the self-orientation servo system is complex and huge, and the orthogonal multi-magnetic sensor also has the disadvantage that the application background gradient is large and the steering error is large.

Method used

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  • Omnidirectional helium optical pumping magnetic force instrument
  • Omnidirectional helium optical pumping magnetic force instrument
  • Omnidirectional helium optical pumping magnetic force instrument

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Embodiment Construction

[0020] The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

[0021] The omnidirectional helium optical pump magnetometer consists of two parts: the omnidirectional helium optical pump probe 1 and the magnetometer host 2. The overall structure is as follows: figure 2 As shown: the omnidirectional helium optical pump probe 1 mainly includes an omnidirectional magnetic sensor 3, a high frequency and high voltage excitation system 4, a radio frequency field application system 5 and a probe auxiliary circuit 6; the magnetometer host 2 has a built-in helium optical pump magnetometer circuit 7 , main board 8, display controller 9, power module 10, power switch 11 and power input interface 12.

[0022] see image 3 , due to the non-magnetic material installation of the omnidirectional magnetic sensor 3 and the requirement of being away from magnetic working devices, the high frequency and high voltage excitation system...

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Abstract

The invention provides an omnidirectional helium optical pumping magnetic force instrument. The omnidirectional helium optical pumping magnetic force instrument is composed of a magnetic sensor and a magnetic force instrument host. The magnetic sensor is composed of a high-frequency high-pressure excitation system, an orthogonal helium lamp chamber pumping system and a helium absorption chamber magnetic field system. The magnetic sensor and the tracking type magnetic force instrument host are integrated together so as to overcome the problem of a dead zone of a helium optical pumping magnetic sensor, and it is unnecessary to adopt an orthogonal multi-magnetic sensor and a complex servo system for overcoming the dead zone. The omnidirectional helium optical pumping magnetic force instrument can provide a high-efficiency rapid approach for earth magnetic field investigation and magnetic anomaly detection under different magnetic dip angles at global high and low latitudes.

Description

technical field [0001] The invention belongs to the technical field of magnetic detection, and in particular relates to a helium optical pump magnetometer. Background technique [0002] A helium optical pump magnetometer is a device that detects weak changes in the Earth's magnetic field. In the helium optical pump magnetometer, the magnetic sensor is affected by the optical pump, and the nuclear magnetic resonance phenomenon occurs in the helium atoms in the helium absorption chamber. The external magnetic field is generated by applying a radio frequency field to disrupt the alignment of atoms, and then the external magnetic field is reflected by counting the frequency of the radio frequency field. However, according to F.D.Colegrove and P.A.Fraken's research on the relationship between the angle θ between the geomagnetic direction and the magnetic field optical path in the magnetic sensor and the magnetic resonance signal Sθ: Sθ=Kz(3cos2θ-1)2. In the formula, Kz is a coef...

Claims

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Application Information

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IPC IPC(8): G01V3/40
Inventor 黄成功邓瑞辉邹鹏毅顾建松余恺何小弟郑军
Owner 杭州瑞声海洋仪器有限公司
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