General description

The KMZ41 is a sensitive magnetic field sensor, employing the magneto-resistive effect of thin film permalloy. The sensor contains two galvanically separated Wheatstone bridges, which enclose an angle of 45 degrees.

A rotating magnetic field strength > 40 kA/m (recommended field strength > 100 kA/m) in the surface parallel to the chip (x-y plane) will deliver two independent sinusoidal output signals, one following a cos(2α) and the second following a sin(2α) function.

The sensor can be operated at any frequency between DC and 1 MHz.

Features and benefits

■ Accurate and reliable angle measurement

■ Mechanical robustness, contactless principle

■ Wear-free operation

■ Accuracy independent of mechanical tolerances

■ Extended temperature range