Patents Assigned to Kombinat VEB Keramische Werke Hermsdorf
  • Position responsive control signal generator having relatively movable sensor and magnetic flux concentrators
    Patent number: 4791365
    Abstract: Control signals are provided by means of a magnet, a sensor sensitive to magnets, and elements influencing the magnetic field and having a relative movement. A magnetoresistive circuit is placed between one stationary and at least two simultaneously linear or circular movable magnetic flux concentrators having an U- or V-shaped arrangement and being alternately effective in the magnetic circuit. The magnetoresistive circuit is operated in its saturation range, if at least one of the magnetic flux concentrators is effective.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: December 13, 1988
    Assignee: Kombinat VEB Keramische Werke Hermsdorf
    Inventors: Peter Johannes, Lutz Lampe, Wolfgang Lampe, Uwe Loreit, Gottfried Neumarker, Peter Pertsch
  • Thermoelectric sensor
    Patent number: 4665276
    Abstract: This invention concerns a thermoelectric sensor of the air-backed type comprising a thin-film thermopile with a receiving area of approximately 1 mm.sup.2 under a protective atmosphere of atmospheric pressure. To increase the responsivity of such sensors the sensing junctions of at least 25 thermocouples whose legs have comparable coefficients of thermal conductivity are arranged in the receiving area with the legs having an average breadth-to-length ratio of at least 1:20.
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: May 12, 1987
    Assignee: Kombinat VEB Keramische Werke Hermsdorf
    Inventors: Thomas Elbel, Jurgen Muller, Friedemann Volklein