Aeronautical magnetic field vector detection device and monitoring method
A magnetic field vector and detection device technology, which is used in measurement devices, electrical/magnetic exploration, and geophysical measurements. small effect
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[0053] The light emitted by the pump light source DFB laser a11 passes through the optical isolator a12, the optical attenuator a13, the polarizer 17, the λ / 4 wave plate 18, the triaxial Helmholtz coil 31, the heat preservation chamber 33, the atomic gas chamber 32, Received by the photodetector 19 and converted into a feedback electrical signal to control the intensity of the residual magnetic field by adjusting the current of the three-axis Helmholtz coil 31 . The light emitted by the detection light source DFB laser a21 passes through the optical isolator a22, the optical attenuator a23, the polarizer 27, the three-axis Helmholtz coil 31, the heat preservation chamber 33, the atomic gas chamber 32, and is received by the polarization beam splitter 41 The o light and e light are separated, and the difference division and detection circuit 42 converts and outputs it into an electrical signal, and the zero-crossing comparator 43 captures its first zero-crossing point. Wherein ...
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