At the end of the 19th century, mechanical pressure sensors, such as the Bourdon-tube gauge, were already being used in industrial production. With the advent of electricity, the introduction of electrical machines, and the transition to assembly-line production, the first electrical sensors, such as strain gauges, quickly found their way into the rapidly advancing industrialization process. In the 1970ies, electronics and IT came into play and changed automation forever. At the same time, sensor technology started to develop electronically compensated and calibrated devices with digital interfaces.
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