Abstract: Array sensors are described which are based on the magnetostrictive delay line technique, where sensing is based on the modification of the magnetic circuit along the magnetostrictive delay line. The proposed array sensors can perform a quantitative measurement of signals instead of the merely sensing activity performed by sensors of the prior art. Further advantageous characteristics of the proposed array sensors is that magnetoresistive devices and alternatively a detecting magnetostrictive delay line with two detecting coils at the ends thereof are used at the output of the sensor array, and that the detected pulsed width T is monitored instead of the peak voltage, this offering an improved response of the proposed array sensors. The above improvements are used in various applications and specifically are proposed novel digitizers and displacement sensors as well as a magnetic field distribution sensor.