Patent ID: 11879907
Assignee: AAC KAITAI TECHNOLOGIES (WUHAN) CO., LTD
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. The acceleration sensor of claim 4, wherein there are four seesaw structures, which are sequentially defined as a first seesaw structure, a second seesaw structure, a third seesaw structure and a fourth seesaw structure along a clockwise direction; the outer coupling unit further comprises four accommodating grooves recessed outward from inner sides of the two first side beams and inner sides of the two second side beams;
a torsion spring of the first seesaw structure and a torsion spring of the third seesaw structure are both arranged parallel to the first direction and staggered along the second direction;
one end of a connecting beam of the first seesaw structure extends into the accommodating groove formed by a recession of one of the two second side beams, and the other end extends to the inner side of the outer coupling unit;
one end of a connecting beam of the third seesaw structure extends into the accommodating groove formed by a recession of the other one of the two second side beams, and the other end of the connecting beam of the third seesaw structure extends into the inner side of the outer coupling unit;
the first seesaw structure and the third seesaw structure are center-symmetrical with a geometric center of the outer coupling unit;
a torsion spring of the second seesaw structure and a torsion spring of the fourth seesaw structure are both arranged parallel to the second direction and staggered along the first direction;
one end of a connecting beam of the second seesaw structure extends into the accommodating groove formed by a recession of one of the two first side beams, and the other end of the connecting beam of the second seesaw structure extends into the inner side of the outer coupling unit;
one end of a connecting beam of the fourth seesaw structure extends into the accommodating groove formed by a recession of the other one of the two first side beams, and the other end of the connecting beam of the fourth seesaw structure extends into the inner side of the outer coupling unit;
the second seesaw structure and the fourth seesaw structure are center-symmetrical with the geometric center of the outer coupling unit; and
the first Z-axis capacitance plates of the plurality of out-of-plane displacement detection devices are arranged on the outer coupling unit and the inner side of the outer coupling unit; the first Z-axis capacitance plates of the plurality of out-of-plane displacement detection devices located at the inner side of the outer coupling unit are located at ends of the four seesaw structures that are close to each other, and are respectively connected to the four seesaw structures through the inner coupling elastic beams.