PACKAGING OF A HYPERVELOCITY RADIO TELEMETER TO WITHSTAND HIGH IMPULSE ACCELERATIONS
Abstract
Telemeter transmitters, consisting of simple r-f oscillators incorporating variable-capacitance pressure transducers, operated successfully in aeroballistic ranges after gun launchings at peak accelerations of 100,000 g. Telemetered pressure data obtained from these telemeters after launchings at 200,000 g, however, were very inaccurate, partly as a result of the frequency shifts of the oscillators. Tests, devised to determine the cause of these shifts, showed that a single, most favorable, mounting orientation for each of the components exists. If the components are oriented properly, frequency shifts can be minimized. It was also found that launching a complete oscillat r without the transducer does not necessarily allow a prediction of the behavior of the individual circuit components. It was proven possible for each of the oscillator circuit components to change its electrical value with no resulting change in oscillator center frequency. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1961
- Accession Number
- AD0264688
Entities
People
- Raymond Young
Organizations
- Arnold Engineering Development Complex