Accelerometer

An accelerometer, comprising:

• an outer coupling structure, a detection structure connected to the outer coupling structure, and an inner coupling structure;
• wherein the detection structure comprises anchors connected to the outer coupling structure, two seesaw structures elastically connected to the anchors, and a displacement detection component arranged on both the outer coupling structure and the inner coupling structure;
• wherein inner sides of the two seesaw structures are coupled to the inner coupling structure, and outer sides of the two seesaw structures are coupled to the outer coupling structure;
• the two seesaw structures are oppositely arranged, and the outer coupling structure comprises an outer coupling structure inner ring that is coupled to the outer sides of the two seesaw structures and an outer coupling structure outer ring that encircles an outer circumference of the outer coupling structure inner ring;
• wherein the accelerometer further comprises a detection electrode plate secured to a side, close to the outer coupling structure, of the inner coupling structure;
• and the anchors are evenly distributed at a center of the outer coupling structure, and the inner coupling structure is distributed around the anchors;
• and
• the detection structure further comprises a first elastic member connecting the outer coupling structure inner ring to a seesaw structure corresponding to the outer coupling structure inner ring, a second elastic member connecting the outer coupling structure inner ring to the outer coupling structure outer ring, and a third elastic member connecting the detection electrode plate to a seesaw structure corresponding to the detection electrode plate.