| 摘要 |
Strain gauge apparatus comprises two strain sensitive piezoresistors Rr1 and Rt1, two op-amps, three predetermined value resistances, Ra, Rb, and Rc, and voltage source supplying Vdc. Said elements are connected to produce an output signal of the form Vdc(Rc/Ra l ) (Rr1/ Rt1-Ra/Rb).
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