Patents by Inventor Paul Kranz

Paul Kranz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Radiosonde circuitry for impedance measurement of an Al.sub.2 O.sub.3 absolute water vapor sensor
    Patent number: 4074241
    Abstract: An improved circuit permits measurement of the impedance of an Al.sub.2 Ob.3 water vapor sensor used with conventional radiosonde telemetry systems.The circuit includes an oscillator, an output pulse shaper and a voltage regulator. The oscillator section is a temperature stabilized feedback oscillator which uses the sensor as a feedback element. The oscillator output is a square wave varying from 20 to 200 Hz over a dew point range, of 110.degree. to 0.degree. C. and is stable within .+-. 1% over a -60.degree. to +20.degree. C. temperature range. The output pulse shaper converts the square wave from the oscillator to a 60 microsecond wide, 3 volt negative-going pulse suitable for modulating the radiosonde transmitter. The voltage regulator provides regulated +4.5 volts from the sonde battery for operating the oscillator and pulse shaper.
    Type: Grant
    Filed: December 24, 1974
    Date of Patent: February 14, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Paul Kranz