Abstract: A method of transmitting at least two measured values by means of light pulses which are passed by an optical transmitter through an optical transmission path to an optical receiver and whose relative separation in time is proportional to the measured value. The energy consumption for the optical transmission of the measured values is reduced by transmitting needle pulses cyclically, one after another in the same order of succession, in that per measured value an optical measuring pulse is transmitted, whose separation in time from the optical measuring pulse associated with a preceding measured value is proportional the magnitude of the measured value, and in that for each group of measured values an optical identification pulse is transmitted, whose distance in time from a preceding measuring pulse is smaller than the smallest possible distance in time between two successive optical measuring pulses.

Abstract: Thin film strain gauge system consisting of an elastically deformable flexible metallic substrate on which an electrically insulating layer of a plasma-polymerized material, in particular of Si:N:O:C:H-containing compounds and thereon a structured resistance layer as well as an electrically readily conducting layer having a structure for the electrical contacting are provided.

Abstract: An optical path sensor including a filter through which passes a radiation beam comprising light of at least two wavelengths and which filter, as it is moved perpendicularly to the direction of the optical radiation beam, causes the attenuations for the beam components of different wavelengths to change in a different ratio. In a filter constructed in a simple manner with low-cost elements two phase gratings are arranged one after the other in the beam direction, only one of the gratings being movable perpendicularly to the beam direction and in that the zero-order diffraction beams are directed towards a detector.

Abstract: The invention relates to a method for the force-coupled and vacuum-tight bonding of components of ceramic material together or to metallic components by means of thermocompression while using a soldering material in the form of an AlMgZn alloy provided between the components to be bonded prior to the thermocompression process. The soldering material used consists preferably of an aluminum-zinc-magnesium alloy having 95% by weight of Al, 4% by weight of Zn and 1% by weight of Mg.

Abstract: A differential pressure transducer having a body of insulating material on which film electrodes are fixed, two diaphragms made of insulating material, and two film electrodes on the inner sides of the respective diaphragms facing the body. The diaphragms and the body together form cavities which are filled with an incompressible liquid, and the film electrodes of the body and of the diaphragms form capacitances which are dependent on the diaphragm deflection. The transducer is especially suitable for the measurement of the flow rate of explosive liquids or gasses.