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

Claim 9:
10. The acceleration sensor of claim 9, wherein when the in-plane displacement detection device comprises the X-axis in-plane displacement detection devices configured to detect the linear movements of the proof mass blocks along the first direction, the X-axis in-plane displacement detection devices are arranged on the first outer coupling beam and the second outer coupling beam; the first outer coupling beam and the second outer coupling beam are both provided with the proof mass blocks; the proof mass blocks arranged on the first outer coupling beam and the second outer coupling beam are provided with the first through openings extending the proof mass blocks along the third direction, an inner side of the first through openings is provided with the first X-axis capacitance plate; 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 into the same first through hole.