Accession Number : ADA020039

Title :   Piezoelectric Triaxial Accelerometer System for Use in Satellite Air Density Measurements.

Descriptive Note : Final rept. Apr 72-Jun 75,


Personal Author(s) : Fryklund,Donald H.

Report Date : SEP 1975

Pagination or Media Count : 58

Abstract : A piezoelectric triaxial accelerometer system has been evolved for use in satellite based neutral air density measurements. Piezoelectric bimorphs are heavily loaded with masses that are clamped at sealevel and are released in orbit by the use of pyrodevices. The satellite spin provides signal chopping to enable narrow-banding to reduce noise.

Descriptors :   *Accelerometers, *Piezoelectric transducers, *Densitometers, *Meteorological satellites, Measuring instruments, Semiconductor devices, Aeronomy, Air, Density, Measurement, Release mechanisms, Spinning(Motion), Narrowband, Signal to noise ratio, Noise reduction, Calibration

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE