Rotational / Linear Sensors
NVE has launched the new AET-Series
of TMR off-axis rotational / linear sensors, the worlds only tunneling magnetoresistance
(TMR) encoder sensors.
The sensors can be used with multipole ring magnets as rotary encoders or with
magnetic linear scale tape as linear motion sensors. High sensitivity allows for
wide airgaps and accommodates mechanical tolerances.
AETxxx half-bridge versions offer simplicity and miniaturization. AETxxxF full-bridge
versions provide twice the output signal and maximize noise immunity. Sine and
cosine outputs provide direction information. The output amplitude is 200 mVpp/V
typ. for half-bridge versions and 400 mVpp/V for full-bridge versions. The
large output signals allow direct interface to common microcontrollers with no
Standard AET-Series sensors are designed for pole pitches from 0.5 to 5 mm.
Custom spacings are also available. Typical resolution is one one-thousandth of
the pole pitch, or or as little as 0.5 microns for linear motion sensing
and 0.02 degrees for rotation sensing with a 16-pole ring magnet.
Key AET-Series sensor features include:
Large analog signals (to 400 mVpp/V)
Excellent linearity and low distortion
350 kHz operating frequency
150°C operating temperature
AET-Series applications include:
Linear motion sensors
Motion, speed, and position sensing
Five AET-Series models are in stock
for immediate delivery:
Demonstration and Evaluation Kits
Demonstration Kit showcases micron precision with an AET500-02E sensor.
The kit includes:
A 3 x 5-inch PCB
An AET500-02E 5 mm pole-pitch sensor
On-board amplifier and microcontroller
A four-digit position display
5 mm pole-pitch magnetic tape
3-D printed fixturing
LEDs to indicate pole detection
Powered by three AAA batteries (included)
Evaluation Kit helps test
AET-Series sensors with magnetic linear
scale tape. The kit includes:
All five AET-Series parts (unsoldered in tubes)
A 3 x 4-inch PCB with test points and screw terminals
Detachable fixturing for magnetic linear scale tape
(tape sold separately)
Conference on Magnetism and Magnetic Materials (virtual conference)
November 2 to 6, 2020.
November 16 to 18, 2020
San Jose, Calif.