| 摘要 |
PURPOSE:To eliminate generation of error in output due to external noises and so on even in the state that frequency signal is not being applied by using a delay circuit that outputs output signal that delays by a certain time the output of trigger signal circuit in place of an integrating amplification circuit. CONSTITUTION:Input alternating signal FIN is input to a trigger signal circuit 1 to generate trigger output. The trigger output is applied to an one-shot circuit 2 and a delay circuit 7. Here output that operates trigger output with a delay of certain time is out from the trigger circuit 7, and this output is input to a bias circuit 8. The output from the one-shot circuit 2 and the output from the bias circuit 8 are added in an integrating circuit 6, and it is output further through an averaging circuit 3. |
