| 摘要 |
PURPOSE:To eliminate the need for correcting function y=fx, by generating secondary function conversion to a function generator used for a work tool, etc., by generating an output of inversefunction output value (x) by the input of value (y). CONSTITUTION:Function output generator 1 is provided which generates output value (y0) equivalent to value (y) against an input equivalent to value (x) of function y=fx, and output (y0) of this generator 1 is applied by way of feedback circuit K to resistor 4 constituting the comparator circuit. This comparator circuit is composed of resistors 4 to 7 and operational amplifier 8, and the valve (y) of the function is inputted to input terminal 2 and then compared with output value (y0) of generator 1, thereby outputting a difference signal. This difference signal is applied to the integrating circuit composed of resistors 9 and 10, capacitor 11 and operational amplifier 12 and its integration output is supplied as value (x) of generator 1. Then, the feedback circuit is so operated that the difference signal from comparator circuit will be zero, and when it becomes zero, inverse function output value (x) against input value (y) is outputted from output terminal 3. |
