| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for obtaining the position of a counter wheel (1) in a wheel counter mechanism, in terms of capacity. SOLUTION: The device is provided with fixing electrodes (3 and 3') at a certain distance from the counter wheel (1). A series of measurement electrodes (12, 12' and 12") are extended onto the outer periphery of the counter wheel (1) and non-conductive sections (13 and 13') are electrically arranged among the measurement electrodes. Then high or low, i.e., the binary value of zero or one is detected concerning each position of the counter wheel and each fixing electrode. The binary expression of an optionally desired number which expresses the present position of the counter wheel (1) is formed by combining the binary values through the use of the number of the fixing electrodes for each counter wheel.
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