Abstract: A method of, and apparatus for, measuring the moisture content of flat textile structures, especially textile webs, wherein there are produced, by virtue of the measuring operation, useful signal components of the same polarity dependent upon the conductance of the test material. There are produced disturbance signal components of opposite polarity dependent upon external voltages. And the useful signal components are additively processed into a measurement value, whereas the disturbance signal components, by addition thereof, due to their opposite polarity, at least approximately eliminate one another.

Abstract: A method for remote-control through a power supply system, wherein at the transmitting end the control commands are superimposed upon a power line of the power supply system in the form of angle-modulated signals and are removed at any point of the power supply system for discrimination and subsequent evaluation according to their momentary frequency or phase.An arrangement for carrying out the aforesaid method is also disclosed wherein a transmitter which can be modulated in its frequency or phase with the information corresponding to control commands is provided at the transmitting end. The transmitter is coupled through coupling means at the transmitting end to a power line of the power supply system used for transmission.

Abstract: A current supply arrangement for an electronic remote control receiver, wherein a series circuit comprising a protective impedance, a capacitor and a full-wave rectifier is connected between two input terminals intended for connection to an alternating current network, a voltage limiter is operatively associated with the full-wave rectifier.