| 摘要 |
PROBLEM TO BE SOLVED: To provide a voltage detector capable of accurately detecting voltage even when the number of connected signal processing circuits is changed and the connection conditions of a partial pressure part are varied.SOLUTION: The voltage detector includes an intermediate electrode 2 disposed between a central conductor 1 and a tank 3, a resistor R disposed between the intermediate electrode 2 and the tank 3, and one or a plurality of signal processing circuits 4 connected in parallel with the tank 3 and the intermediate electrode 2, having an input impedance 5, and configured to detect voltage applied from a partial pressure part voltage E2 to the central conductor 1, which is voltage divided by the intermediate electrode 2. Each of the signal processing circuits 4 includes a number detection unit for detecting the number of connected signal processing circuits 4, and a gain correction unit for adjusting a gain by which the partial pressure part voltage E2 is multiplied so as to correct a voltage fluctuation amount fluctuated according to the number of connected circuits from a value when the number of connected circuits is 1 by the partial pressure part voltage E2. |
