Accession Number : AD0672808

Title :   LANGMUIR PROBES FOR DETERMINING IONOSPHERIC PARTICLE DENSITIES AND TEMPERATURES,

Corporate Author : UTAH UNIV SALT LAKE CITY UPPER AIR RESEARCH LABS

Personal Author(s) : Seljaas,Karl G.

Report Date : JUN 1968

Pagination or Media Count : 107

Abstract : The development of a rocket-borne Langmuir probe system for ionospheric research is described. Particular emphasis is placed on D- and E-region electron temperature and density measurement techniques. Present theory is discussed and found to be unsatisfactory for the rocket probe in the collision dominated D region. The development of the electronic instrumentation is cataloged and the results from a number of rocket flights are analyzed. The probe system that is recommended consists of a function generator that biases the electrode alternately between the electron acceleration region and the positive ion acceleration region and a high input impedance logarithmic amplifier capable of compressing five decades of data in the 0 to 5-volt output range. Currents can be monitored over the ambient temperature range of -10C to +50C. (Author)

Descriptors :   (*IONOSPHERE, ELECTRON DENSITY), (*LANGMUIR PROBES, IONOSPHERE), CHARGED PARTICLES, METEOROLOGICAL INSTRUMENTS, SOUNDING ROCKETS, INTERACTIONS, ELECTRONS, INSTRUMENTATION, ACCELERATION, UPPER ATMOSPHERE, TEMPERATURE, MEASUREMENT, PAYLOAD, AURORAE, SOLAR ECLIPSES, ICE

Subject Categories : Atmospheric Physics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE