| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a voltage measurement device having a uniform characteristic of filter frequency of each measurement channel while reducing the number of components. <P>SOLUTION: In the voltage measurement device 10, an electrostatic capacitance C<SB POS="POST">n</SB>of each capacitor 32 satisfies a relation of C<SB POS="POST">n</SB>>C<SB POS="POST">n+1</SB>, and when τ is expressed as an optionally set filter time constant, a resistance value R<SB POS="POST">n</SB>of each resistor 30 has following relations (1) to (3): R<SB POS="POST">1</SB>=τ/ä2(C<SB POS="POST">1</SB>-C<SB POS="POST">2</SB>)} (1), R<SB POS="POST">n</SB>=ä(2n-1)×τ}/ä2(C<SB POS="POST">n</SB>-C<SB POS="POST">n+1</SB>)} (2), and R<SB POS="POST">m</SB>=ä(2m-1)×τ}/2C<SB POS="POST">m</SB>(3). <P>COPYRIGHT: (C)2013,JPO&INPIT |
