Strain measurement device and torque sensor
The strain measurement device enhances sensitivity and reduces weight by aligning strain gauges with shear force direction, optimizing beam and flat plate configurations for efficient strain measurement.
WO2026154738A1PCT designated stage Publication Date: 2026-07-23NIDEC COMPONENTS CORP
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- NIDEC COMPONENTS CORP
- Filing Date
- 2025-10-08
- Publication Date
- 2026-07-23
AI Technical Summary
Technical Problem
Existing strain measurement devices face challenges in improving sensitivity and reducing weight.
Method used
A strain measurement device with an elastic member and strain generating member, featuring beam portions connecting flat plate portions, where strain gauges are positioned to align with the direction of shear force, allowing for high sensitivity and reduced weight without increasing dimensions.
Benefits of technology
The device achieves high sensitivity and weight reduction by aligning strain gauges with the direction of shear force, enabling efficient strain measurement with minimal material usage.
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Smart Images
Figure JP2025035626_23072026_PF_FP_ABST
Abstract
This strain measurement device has an elastic member and a strain-inducing member. The elastic member has: a first flat plate part fixed to a shear-force input part or output part; at least one second flat plate part disposed parallel to the first flat plate part and fixed to the output part or input part; and a pair of beam parts connected to the first flat plate part and the second flat plate part. The strain-inducing member is connected to the pair of beam parts of the elastic member, and has at least one strain gauge disposed thereon.
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