DYNAMIC GAS FILM ACCELEROMETER STUDY. PART I: DEVELOPMENT AND TEST ROGRAM.
Abstract
The primary objective of the program was to determine the feasibility of applying the dynamic film suspension as a means of supporting the proof mass of a linear accelerometer. Feasibility was demonstrated through the development of a mathematical model of the suspension and the design, fabrication, and test of a research test model. A research model accelerometer was fabricated and tested. Satisfactory test results were obtained in the following areas: capacitance pickoff sensitivity, linearity, and reaction forces; permanent magnet forcer scale factor and linearity; force rebalance electronic gains and stability margins; dynamic film journal load support; dynamic film bearing power consumption; accelerometer test bed 1 g tumble tests in which bias, scale factor, g-squared non-linearity, g-cubed non-linearity, cross-axis sensitivity and cross coupling were extracted by Fourier analysis; bias dependence upon synamic film and capacitance pickoff excitation; variation in bias as a function of servo hang-off. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1965
- Accession Number
- AD0471031