Position and Velocity Transducers

Inductive Thumbwheel Sensor PO1230

(Posic)

Applications:

Displacement Measurement - Contact

The PO1230 Inductive Thumbwheel Sensor is based on a “microcoil” system integrated on a silicon chip. Microcoil sensors are used in combination with non-magnetized targets and are robust against optical, electric and magnetic disturbances, work well in the presence of water or oil and have a high level of integration, leading to very small dimensions. The PO1230 consists of a small PCB including the sensor and a small bearing to hold the actual thumbwheel. The thumbwheel consists of either an aluminum or a plastic wheel in which

the metallic target is integrated.

96 steps per 360° rotation

Step size 3.75°

Hysteresis of 0.4°

Light weight

Small dimensions Ø 28 mm

High rate: 1’500 rotations/sec

Temperature range 0 – 50°C

Typical airgap 0.5 mm