Abstract: A method of detecting distortions of optical signals and a receiver for distorted optical signals are proposed, where the receiver comprises an opto-electric converter, an equalizer and a microprocessor, and the equalizer is connected to at least one distortion detector, and both the distortion detector and the equalizer are connected to a common control means via a microprocessor.

Abstract: In a first variant of this pressure sensor with a substrate and a diaphragm which are joined together parallel to each other in a defined spaced relationship, forming a chamber sealed at least at the edge, the chamber-side surface of the diaphragm is completely covered with a diaphragm electrode. The chamber-side surface of the substrate supports a reference electrode consisting of an outer portion, which extends along the edge of the chamber and whose capacitance is virtually pressure-independent, and a pressure-dependent central portion, which is located at the center of the substrate and is connected with the outer portion via a connecting portion. The remainder of the substrate surface is covered with a measuring electrode spaced from the reference electrode by a constant distance.