Liquid mass element accelerometer

The invention discloses a liquid mass element accelerometer which comprises a shell and a sensing assembly, a containing cavity is formed in the shell, the sensing assembly comprises a liquid mass element and a pressure sensor, and the pressure sensor is arranged in the containing cavity. The pressure sensor is used for acquiring the acceleration of the shell according to the pressure applied by the liquid mass element. And the liquid mass element can flow in the accommodating cavity. When acceleration change occurs in the shell, the liquid mass element put in the accommodating cavity extrudes the pressure sensor. Through the pressure detected by the pressure sensor, the acceleration of the shell can be measured and calculated. The liquid mass element can flow in the accommodating cavity, and a linear channel for the solid mass element to slide does not need to be reserved, so that the internal structure of the shell is convenient to plan, the micro design of the liquid mass element accelerometer is convenien