| 摘要 |
PURPOSE:To generate a binarization signal which accurately reflects a sensor output signal by generating a signal which enlarges or reduces the amplitude of an inputted analogue signal and changing the level in accordance with the change of the inputted analogue signal as a reference signal. CONSTITUTION:The sensor output signal 1 is inputted to an amplifier 2. The output of the amplifier 2 is inputted to a diode circuit 3. When the sensor output signal 1 is large, a forward direction diode is turned ON. Thus, the output signal of the diode circuit 3 is lowered the quantity of the forward voltage. When the sensor output signal 1 is small, it is inversely raised by the quantity of the forward voltage. The signal is set to the appropriate voltage level by resistances 5 and 7, and a variable resistance 6. The signal goes to the reference signal. The reference signal is inputted to a comparator 8. The sensor output signal 1 is inputted to the comparator 8, as well and the signal is compared with the previous reference signal so as to be converted into the binarized signal. |
