Patents Assigned to SICK ATECH GMBH
  • Patent number: 11713981
    Abstract: An evaluation unit for a magnetostrictive displacement sensor and a magnetostrictive displacement sensor for determining a position of at least one position encoder having an input for receiving an electrical measurement signal generated by the magnetostrictive displacement sensor are proposed. The electrical measurement signal includes a position signal representing a position of a position encoder movable relative to a magnetostrictive device component and a reference signal representing a reference position, having a first evaluation branch for evaluating the measurement signal. The first evaluation branch is adapted to determine a position signal time of flight of the position signal and a first reference signal time of flight of the reference signal.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: August 1, 2023
    Assignee: SICK ATECH GMBH
    Inventor: Saiful Islam Ahmad
  • Patent number: 10533880
    Abstract: A position sensor comprises a waveguide of a magnetostrictive material, which extends along a measurement path and which is configured for conducting mechanical pulses triggered by magnetostriction, and a housing for the waveguide. A positioning element is provided which is elastic at least regionally; which is held in the housing while being deformed; and which has a recess which extends along the measurement path and forms a receiver for the waveguide. In the position sensor in accordance with the invention, the recess has a slit which extends along the measurement path; which, viewed in a cross-sectional plane, reaches from a reception section up to a boundary of the positioning element; and which enables a lateral insertion of the waveguide into the reception section. The invention furthermore comprises a method of manufacturing a position sensor in accordance with the invention.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: January 14, 2020
    Assignee: SICK ATECH GMBH
    Inventor: Saiful Islam Ahmad
  • Patent number: 10429212
    Abstract: A position sensor comprises a waveguide of magnetostrictive material which extends along a measurement path and which is configured for conducting mechanical pulses triggered by magnetostriction. A transducer at a first end of the waveguide serves for coupling a current pulse into the waveguide and for detecting a mechanical pulse conducted by the waveguide in the direction of the transducer. A damping element of an elastomer material is provided at a second end of the waveguide for damping a mechanical pulse propagating in the direction of the second end, wherein the hardness of the elastomer material increases as the distance from the transducer increases. The invention furthermore relates to a method of manufacturing a damping element of such a position sensor.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: October 1, 2019
    Assignee: SICK ATECH GMBH
    Inventor: Saiful Islam Ahmad