Detection laser frequency stabilization device and method for nuclear magnetic resonance gyroscope

The invention relates to a detection laser frequency stabilization device and method for a nuclear magnetic resonance gyroscope, belongs to the technical field of laser frequency stabilization, is used for carrying out frequency stabilization on a pump laser and a detection laser of an atomic instrument, and is composed of an optical system and a circuit system which are connected through an electric wire. The optical system comprises an atomic gas chamber and a photoelectric detector, and the circuit system comprises an absorption peak deviation detection circuit, a pumping laser control circuit, a proportion following circuit and a detection laser control circuit. On the basis of frequency stabilization of pumping laser through an alkali metal absorption peak of an atomic gas chamber, frequency stabilization of detection laser according to requirements is realized by adding a proportion follower circuit on the premise of not changing a system structure, and miniaturization of a nuclear magnetic resonance gy