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

Claim 4:
5. The acceleration sensor of claim 2, wherein the in-plane displacement detection device comprises the plurality of X-axis in-plane displacement detection devices; the proof mass blocks located on the two second side beams are provided with a plurality of spaced first through openings, and the first through openings extend through the proof mass blocks along the third direction; each of the first through openings is provided with one of the first X-axis capacitance plates fixed on the proof mass blocks; each of the second X-axis capacitance plates, or one of the second X-axis capacitance plates and one of the third X-axis capacitance plates that form a differential arrangement therewith extend from the substrate to the same first through opening.