| 摘要 |
<p>PURPOSE:To set sensitivity fitting to a device to be connected and to improve operability by providing a means changing the rate of the level variable amount of an output voltage with respect to the rotation quantity of a sphere. CONSTITUTION:A sensitivity changing part 4x is provided with a gain input part 41 setting the gain of a voltage amplifier part 43, a gain control part 42 outputting a gain control signal in correspondence with the output signal of the gain input part 41, and a voltage amplifier part 43 amplifying the output voltage of a voltage variable amount detection part 3x. The rate of the level variable amount for respective periods of the output voltage with respect to the rotation quantity of the sphere 1, namely sensitivity, is changed by the switch of the gain input part 41 or a variable resistor. Thus, appropriate sensitivity with respect to the device to be connected can be given and the operability can be improved.</p> |
