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

Claim 8:
9. The acceleration sensor of claim 3, wherein there are two seesaw structures mutually forming a nested structure, which are respectively defined as a first seesaw structure and a second seesaw structure; the outer coupling unit further comprises a first outer coupling beam extending from the two second side beams to the first seesaw structure and a second outer coupling beam extending to the second seesaw structure; a torsion spring of the first seesaw structure and a torsion spring of the second seesaw structure are both arranged parallel to the second direction and staggered along the second direction; two ends of a connecting beam of the first seesaw structure and two ends of a connecting beam of the second seesaw structure are all provided with the first Z-axis capacitance plate;
the first outer coupling beam extends to a side of the torsion spring of the first seesaw structure away from the second seesaw structure and is spaced apart from the torsion spring of the first seesaw structure, and the second outer coupling beam extends to a side of the torsion spring of the second seesaw structure away from the first seesaw structure and is spaced apart from the torsion spring of the second seesaw structure;
the first Z-axis capacitance plate arranged on the first seesaw structure and close to the second seesaw structure is located on a side of the torsion spring of the second seesaw structure close to the first seesaw structure and is spaced apart from the torsion spring of the second seesaw structure, and the first Z-axis capacitance plate arranged on the second seesaw structure and close to the first seesaw structure is located on a side of the torsion spring of the first seesaw structure and is spaced apart from the torsion spring of the first seesaw structure, so as to form the nested structure of the two first Z-axis capacitance plates; and
the inner coupling elastic beam is located between the two first Z-axis capacitance plates that form the nested structure, and elastically connects the connecting beam of the first seesaw structure to the connecting beam of the second seesaw structure.