| 摘要 |
PURPOSE:To calculate moment in good preciseness, by simple constitution wherein a measuring center M, C is provided in the vicinity of the leading end of a strut while a moment center is provided to the other end thereof and the distance therebetween is set to L. CONSTITUTION:Force shown by a write arrow F and moment shown by an arrow M are simultaneously acted on the measuring center M, C in the vicinity of the leading end of a strut 21. When force F and moment M' are acted on the moment center 24 of a detector at this time, the relation of formiula M'= M+FXL(distance) is formed between the moments M, M'. When this detector detects F and M' and if it is a two-component force detector, the moment M is calculated from formula M=M'-FXL. By properly selecting amplification ratios AF1, AF2, AM1, AM2 of each amplifiers 31, 32, 36, 37 and the coefficient K of a coefficient setting device 41, M2=M is taken out as output when M1 is M'. In this case, the output of the coefficient setting device 41 is added to an adder 38. |
