Accession Number : ADD000262
Title : New Temperature Sonde.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Pepin,Theodore John
Report Date : 16 Apr 1974
Pagination or Media Count : 6
Abstract : The patent relates to an improved temperature sensing device of the radio sonde type. It includes a bead thermistor remotely mounted from the housing containing unique circuitry for telemetering measured temperature by frequency modulating the output of the transmitter tube by using the variable resistance characteristics of the thermistor in the current circuit for charging a capacitor that is automatically discharged when a given voltage is reached. Included within the circuitry is a flip-flop circuit for frequency modulating the broadcast frequency.
Descriptors : *Radiosondes, *Patents, Atmospheric temperature, Detectors, Thermistors
Subject Categories : Meteorology
Distribution Statement : APPROVED FOR PUBLIC RELEASE