| 摘要 |
PURPOSE:To detect and display automatically the muscular strength of the fingers, by providing a decision circuit consisting of a comparator and an integrating circuit and a detector for stable max. value, detecting the stable max. value that appears with slight delay in time from the instantaneous max. value of the muscular strength of the fingers and displaying digitally the same. CONSTITUTION:A decision circuit 8 consisting of an integrating circuit and a comparator is provided to a measuring device for the muscular strength of the fingers consisting of a detector 1, an A-D converter 3 and a display 4. The circuit 8 compares the integrated output of an integrating circuit and the potential of the analog signal detected with a detector 1 by means of a comparator. When the potential of the analog signal exceeds an integrated output, a decision signal is emitted and the integrated circuit is charged. The dicision signal is emitted intermittently in the stage when the muscular strength of the fingers increases, and no more signals are emitted when said strength decreases; therefore, the instantaneous max. value can be detected. A detector 9 for stable max. value detects the time zone when the muscular strength of the fingers attains the stable max. value, and controls the converter 3 so that the converter 3 applies the analog signal to the display 4 after A-D conversion. The display 4 is so controlled as to display the digital signal. |
