Environmental noise suppression method and equipment
A technology of environmental noise and equipment, applied in the field of weak magnetic detection, can solve the problems of high complexity and inability to obtain the first-order gradient, and achieve the effect of simplifying the detection structure and improving the noise suppression performance
Active Publication Date: 2016-08-17
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Problems solved by technology
The present invention provides an environmental noise suppression method and equipment. The environmental noise suppression equipment comprises a detection gradient component, a reference gradient component, a superconducting quantum interference device triaxial magnetometer component, and a readout circuit. The environmental noise suppression method comprises a step of collecting a first gradient output signal from the detection gradient component and a second gradient output signal from the reference gradient component, a step of using the superconducting quantum interference device triaxial magnetometer component to compensate the detection gradient component and the reference gradient component, and a step of allowing the first gradient output signal and the second gradient output signal to mutually compensate so as to synthesize a two-dimensional gradient to suppress environmental noise. According to the invention, the single adding of a gradient reference amount is not needed, by using the associated characteristic between preparation process, the gradient synthesis is carried out in the two-dimensional gradient, thus the noise suppression performance of a gradiometer is greatly improved, and a system detection structure is simplified.
Magnetic field measurement using superconductive devicesMagnetic measurement environmental aspects
PhysicsEnvironmental noise +4
- Experimental program(2)
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