Acceleration sensor circuit and pantograph-catenary acceleration sensor device

The utility model discloses an acceleration sensor circuit and a pantograph-catenary acceleration sensor device, which are applied to the technical field of power electronics and are used for solving the problem of poor anti-interference capability of an acceleration sensor in the prior art. The first output end of the voltage stabilizing module is connected with the power supply end of the acceleration sensor, and the second output end of the voltage stabilizing module is connected with the first input end of the first filtering module; the output end of the acceleration sensor is connected with the second input end of the first filtering module; the output end of the first filtering module is connected with the input end of the voltage-frequency conversion module; and the output end of the voltage-frequency conversion module is connected with an external controller. In this way, the first filtering module can filter interference signals in the voltage signals so as to realize anti-interference protection of