Invention Publication
- Patent Title: SYSTEM AND METHOD OF VIBRATION AND AUDIBLE NOISE REDUCTION IN A LIDAR RESONATOR
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Application No.: US17964444Application Date: 2022-10-12
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Publication No.: US20240125901A1Publication Date: 2024-04-18
- Inventor: Qijun Zhang , Mark A. Stebbins , Srinivasa R. Molleti
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: G01S7/481
- IPC: G01S7/481 ; G01S7/4865 ; G01S17/10 ; G01S17/89

Abstract:
A system and method of vibration and audible noise reduction in a LiDAR resonator includes a spring fork mechanism including multiple spring forks. Each spring fork includes two tines. The first tine of a first and second spring fork include a mounted optical module to transmit a light pulse and receive a reflection of the light pulse. The second tine of the first and second spring forks include a mounted counterweight having a mass and center of gravity equal to a mass and center of gravity of the mounted optical module. To reduce or eliminate longitudinal vibrations each tine includes a first section and a second section, the first section attached to the second section by a U-shaped section.
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