ZMY20 (Obsolete)

Description

The ZMY20 is an extremely sensitive magnetic sensor employing the magneto-resistive effect of thin film permalloy. It allows the measurement of magnetic fields or the detection of magnetic parts. The highly sensitive and small size magnetoresistive sensors consist of a chip covered with thin film permalloy stripes. These stripes form a Wheatstone bridge, whose output voltage is proportional to the magnetic field component Hy. A perpendicular field Hx is necessary to stabilize sensor operation. This can be done by using a small permanent magnet.

Feature(s)

Output voltage proportional to magnetic field Hy

Adjustment of sensitivity and suppression of hysteresis by the auxiliary magnetic field Hx

Magnetic fields vertical to the chip level are not effective

Application(s)

Linear position sensors for process control, door interlocks, proximity detectors, machine tool sensing

Scalar measurement for compassing

Automotive – door switches, engine position & speed sensing

Metering of fluids by sensing rotation of impeller

Traffic counting & vehicle-type sensing