Linear AMR Sensor (2 mm)

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Product Information

iC-SM2L is a linear position sensor which operates on the AMR effect (anisotropic magneto resistance) and has been designed to work with magnetic scales which have a N/S pole pitch of 2 mm.

When the sensor is moved along a magnetic scale with a N/S pole pitch of 2 mm the two Wheatstone bridges generate differential sinusoidal output voltages (PSIN - NSIN) and (PCOS - NCOS) phase-shifted at 90°. One sine/cosine cycle averaged using a pair of N/S poles is thus produced for a pole width. The absolute magnetic field strength must be large enough for the sensor to go into saturation and for the magnetization of iC-SM2L’s resistor stripes to assume the direction of the outer magnetic fields.

The amplitudes of the differential output voltages are largely independent of the magnetic field strength and thus not sensitive to changes in distance.

iC-SM2L is resistant to strong magnetic fields and not sensitive to external homogenous magnetic fields.

iC-Haus iC_SM2C_001


• Linear position sensing
• Length measuring systems

Symmetry Electronics (and its e-commerce division: is an authorized iC-Haus distributor.


Magneto resistive position sensor based on the AMR effect
Strong field sensor for 2 mm N/S pole pitch
One sine/cosine cycle per pole width (averaged using a pair of N/S poles)
High interpolation due to a sine signal with few harmonics
Low saturation field strength
High amplitude consistency with changes in distance
Resistant to strong magnetic fields
Not sensitive to external homogenous magnetic fields


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Linear AMR Sensor (2 mm)
Part #: iC-SM2L LGA SM2C
Linear AMR Sensor (2 mm)