Device for improving grounding resistance in desert area magnetotelluric sounding

The utility model discloses a device for improving grounding resistance in desert area magnetotelluric sounding, and relates to the technical field of electromagnetic sounding, the device comprises a water supply tank, a water supply ring cylinder, a ring cover and a sunscreen cover, the water supply ring cylinder is arranged in an electrode pit, the water supply ring cylinder comprises an inner cylinder and an outer cylinder sleeved outside the inner cylinder, an annular space is formed between the inner cylinder and the outer cylinder, and the ring cover is arranged in the annular space. The annular space is filled with anti-blocking materials, the inner cylinder is filled with grounding filler, the grounding filler is used for embedding electrodes, a plurality of water permeable holes are formed in the side wall of the inner cylinder, the annular cover covers an upper end opening of the annular space, the lower end of the annular space is closed, and a water supply switch is arranged at the bottom of the w