Invention Grant
- Patent Title: Force sensor using integral force biasing for improved linearity
- Patent Title (中): 力传感器使用积分力偏置来提高线性度
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Application No.: US14080545Application Date: 2013-11-14
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Publication No.: US09052246B2Publication Date: 2015-06-09
- Inventor: Richard Wade , Ian Bentley , Jason Dennis Patch , Lamar Floyd Ricks
- Applicant: Honeywell International Inc.
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Thompson Patent Law
- Agent Craige Thompson
- Main IPC: G01L1/04
- IPC: G01L1/04 ; G01L1/18 ; G01L9/00 ; G01L19/14

Abstract:
Apparatus and associated methods relate to a preloaded force sensor, the preloaded force being greater than a force threshold separating a non-linear response region of sensor operation from a substantially linear response region of sensor operation. In an illustrative embodiment, the total applied force includes the preloaded force and an externally-applied force, the preloaded force being predetermined such that electrical signal response is substantially linear for positive externally-applied forces which when added to the preload force do not exceed the maximum force. In some embodiments, the externally-applied force may be transferred to a force-sensing die via a force-transfer member. In an exemplary embodiment, a spring having a predetermined spring coefficient may apply the predetermined preload force to the force-transfer member. In an exemplary embodiment, externally-applied positive forces may be simply calibrated using gain and offset corrections.
Public/Granted literature
- US20150128729A1 FORCE SENSOR USING INTEGRAL FORCE BIASING FOR IMPROVED LINEARITY Public/Granted day:2015-05-14
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