Sensors include magnetic and optical non-contact types, and resistive contact types. Resistive sensors are widely used due to the following merits: easy output processing and mounting, low susceptibility to the effects of external noise, and convenience in that a return to an original position is not required since position can be detected as soon as power is turned on.
The RDC90 Series is a resistive-type rotary sensor which, while compact, achieves high durability of 100 million dither cycles, or 10 million full cycles. Position sensors, when used together with an equipment-controlling motor actuator, are constantly influenced by the motor’s vibrations. Although slight, these vibrations wear away the pivotal resistive elements, affecting position detection accuracy. The RDC90 Series fulfills the durability requirement by incorporating a long-lasting resistive element used successfully in the past for automotive applications such as throttle position sensors.
The RDC90’s long-lasting resistive element has a specular surface, meaning friction applied to brushes sliding over the element is low, thereby minimizing noise and achieving micro-linearity (linearity in weak signal regions) within +/-0.1%.
Features
Compact resistive-type rotary sensor realizing high durability and high precision
1. High durability of 100 million dither cycles, or 10 million full cycles, achieved by incorporating long-lasting resistive element.
2. Minimal noise and microlinearity within +/-0.1%.
Principal Applications
1. Stick controllers for radio control
2. Angle detection for robot joints
3. Position/angle detection for commercial equipment