| 摘要 |
PROBLEM TO BE SOLVED: To provide a multipoint strain measuring system which can measure a multipoint strain suitable for a rosette gauge, by reducing the number of signal wires wired to a strain gage for constituting the rosette gauge and without imparting influence of the resistance of a lead wire coupled to the strain gauge to a measured value. SOLUTION: The multipoint strain measuring system includes a switch means Sk' for selectively connecting rosette gauges Gk to measuring means (11, 12) by connecting three strain gauges for constituting the rosette gage Gk in series and coupling six signal wires to its series circuit. The measuring means supplies current to each strain gate at each rosette gauge Gk via the rosette gage Gk, extracts a voltage via the signal wire different from the two signal wires, and obtains the strain of each strain gate, based on this voltage. COPYRIGHT: (C)2004,JPO&NCIPI
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