Heat preservation and moisture prevention device of magnetometer and magnetometer

The utility model discloses a magnetometer heat preservation moisture-proof device and a magnetometer, relates to the magnetometer technology field, and comprises a base plate, the center of the base plate is provided with a mounting hole in a penetrating manner, the top surface of the base plate is fixedly provided with an outer layer cover and an inner layer cover, the inner layer cover is arranged at the inner side of the outer layer cover, and a vacuum cavity is arranged between the inner layer cover and the outer layer cover; a placement cavity is formed in the inner-layer cover; an air exhaust hole is formed in the outer layer cover in a penetrating mode, and a wire groove is formed in the bottom face of the bottom plate. According to the utility model, the environment temperature of the instrument is stabilized, and the drift of data along with the temperature is inhibited; the environmental humidity of the instrument is reduced, so that data noise is reduced, and the service life of the instrument is