AET-Series TMR Linear and Off-Axis Rotational Encoder Sensors
NVE’s AET-Series sensor elements are versatile, wide-airgap sensors typically used with multipole ring magnets, both radial and face poles, and magnetic linear scale. Standard spacing sensors can detect pole pitches from 0.5 mm to 5 mm. The sensors are Wheatstone bridges comprised of tunneling magnetoresistance (TMR) elements. Both full-bridge and half-bridge versions are available.
The AETxxxF full-bridge sensors offer excellent noise immunity and large differential output signals, and they fully cancel common-mode interference fields. AETxxx half-bridge sensors combine high performance with a half-bridge outputs interface, ideal for simplicity and miniaturization. They can be influenced by common-mode magnetic fields above 1 millitesla.