Today's industrial market features a variety of fast-moving robots, conveyor belts, and other machinery. The combination of speed and high precision has become the benchmark for many applications. Traditionally, inductive encoders have been limited to use cases that do not require high precision and operate at low speeds. However, onsemi's innovative dual-inductive rotary position sensor, the NCS32100, combines the reliable advantages of inductive encoders with the high precision and high-speed capabilities typically associated with mid-to-high-end optical encoders. It delivers an accuracy of +/-50 arc seconds at speeds of up to 6,000 RPM. With a slight trade-off in precision, the NCS32100 can support speeds of up to 100,000 RPM.
The NCS32100 achieves high precision and high speed through a simple and user-friendly dual PCB solution. The two PCBs (one with two printed inductors on the rotor and the other with printed inductors and the encoder IC on the stator) enable the 38mm sensor to achieve an accuracy greater than +/-50 arc seconds. It features a 20-bit single-turn resolution output and a 24-bit multi-turn resolution output.
The NCS32100 integrates an MCU with firmware, outputting position and speed data instead of raw analog signals. The device also demonstrates significantly reduced sensitivity to vibration, temperature, or contaminants. Even when the rotor is stationary, the non-contact encoder can still provide position data.
The NCS32100 can be used in the following applications:
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Servo loops
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Robotics/Collaborative robots
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Autonomous Mobile Robots (AMR)
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Automated vehicle guidance
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Encoder modules (including for factory equipment, elevators, etc.)
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Forklifts
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Throttle position
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Chassis height
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Actuator position feedback
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Joystick position
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Linear actuators
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Level sensors