Rotary encoder capable of generating electronic pulses having variable frequency without changing rotary plate

摘要

Electrodes (6) provided on the inner periphery of a rotary plate (3) are different in number from those provided on the outer periphery. A slide knob (12) moves a contact part (5) along the plane of the rotary plate (3). Thus, the number of electric pulses generated every rotation of the rotary plate (3) when the contact part (5) is in the inner periphery is different from that when the contact part (5) is in the outer periphery.