| 摘要 |
<p>A rotary movement transducer has a shaft with a user rotatable knob and a cam with a spiraled helical cam surface. The helical cam loads and unloads a spring loaded plunger. The plunger compresses a bias spring which reacts against an actuator to provide a variable compression force on a force/pressure responsive resistor. An elastomeric pad distributes the actuator force on the force pressure responsive resistor. The force pressure responsive resistor is mounted on a circuit board with terminal strips for external electrical circuit connection to a detector circuit such as a Wheatstone bridge.</p> |
