Patents Assigned to Drager AG
  • Sensor for measuring partial pressures of gases
    Patent number: 4792752
    Abstract: A sensor for measuring partial pressures of oxygen with an ion-conducting lid electrolyte of zirconium dioxide as the sensor element, which is arranged between two electrodes for measuring an electrically measurable quantity, is improved so that it is usable at an operating temperature of about 200.degree. C., by providing that the zirconium dioxide as the solid electrolyte is solely in its tetragonal modification and containing an addition of about 2-3 mol % yttrium oxide.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: December 20, 1988
    Assignees: Drager AG, Max-Planck-Gesellschaft zur Forder/u/ ng der Wissenschaften e.v.
    Inventors: Gerhard-Ludwig Schlechtriemen, Werner Weppner, Helmut Schubert