KMZ43

The KMZ43 is a sensitive magnetic field sensor,employing the magnetoresistive effect of thin-film permalloy. The sensor contains two galvanic separated Wheatstone bridges, with a relative angular displacement of 45°.

A rotating magnetic field in the x-y plane will produce two independent sinusoidal output signals, one a function of +cos(2a) and the second a function of +sin(2a), a being the angle between sensor and field direction (see Fig.3).Unlike the KMZ41(1), which needs a saturation field strength of 100 kA/m, the KMZ43 is suited to high precision angle measurement applications under low field conditions (saturation field strength 25 kA/m).

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