Development of Compact Resistive Rotary Sensor for Robotic and other Commercial applications
Sensors are widely used due to their accurate detection of mechanism movement and high durability for withstanding repetitive movements and vibrations. Sensors are usually of magnetic and optical non-contact types as well as resistive contact types. Resistive sensors are popular and widely used due to easy output processing and mounting, low susceptibility to the effects of external noise, plus the convenience of not requiring returning to original position since position can be detected as soon as power is turned ON. Based on this technology ALPS Electric has developed a compact resistive-type sensor with excellent durability of 100 million dither cycles, or 10 million full cycles.
The new RDC90 series come with resistive element with specular surface, resulting in low friction of brushes sliding over the element, thereby minimizing noise while achieving micro linearity within +/- 0.1 percent. The target applications for the newly developed RDC90 series sensor include stick controllers for radio control, angle detection for robot joints as well as position and angle detection for commercial equipment. Sample of the new sensor will be available from August 2011 at 1000 JPY (tax included), followed by mass production from October 2011, with monthly production of 100,000 units by December of 2012.