力传感器
By designing an isolation structure between the force-sensitive elastomer and the heat-conducting component and a non-contact arrangement of the strain gauges in the force sensor, the problem of resistance imbalance caused by heat conduction is solved, the detection accuracy is improved, and more accurate force detection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MEASUREMENT SPECIALTIES CHINA
- Filing Date
- 2022-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
In existing force sensors, under thermal conduction conditions, the resistance imbalance of the strain gauge leads to a decrease in detection accuracy. In particular, when the heating component is in contact with the force-sensitive diaphragm, the uneven heat distribution causes temperature imbalance, resulting in detection errors.
Design a force sensor in which the peripheral part of the force-sensitive elastomer is in contact with the heat-conducting component, while the other part is spaced apart from the heat-conducting component. The strain gauge is mounted in the non-contact area, and the circuit board is not in contact with the heat-conducting component. Heat is gradually conducted to the strain gauge through the peripheral part of the heat-conducting component, extending the heat conduction path and ensuring uniform heat distribution.
By extending the heat conduction path and increasing the dissipation space, the temperature imbalance of the strain gauge was eliminated, the detection accuracy of the force sensor was improved, and the detection error was reduced.
Smart Images
Figure CN117053958B_ABST