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US09250144B2 Dual capacitor load cell 有权
双电容式称重传感器

Dual capacitor load cell
Abstract:
A dual capacitor load cell is presented that includes two coupled capacitors with a common plate between them where the common plate is responsive to a force applied to the load cell. The capacitance of the two capacitors varies inversely and changes in response to the applied force. The combined capacitance of each capacitor is used to determine the magnitude of the force being applied to the load cell.
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