STUDY OF PARAMETERS WHICH AFFECT PELLET FLOW TYPE ACCELEROMETERS

Abstract

During the month of August metal beads and glass beads for efflux testing at Philadelphia were separated, measured, and recorded for the following bead properties as defined by our test procedures: (a) Average diameter with 95% confidence limits; (b) Range of diameters for 30 beads; (c) Percent of beads within 1/4 mil and 1/2 mil of the average diameter, to 95% confidence limits; (d) Percent spherical beads; (e) Maximum bulk density; (f) Average bead density; (g) Percent voids at maximum packing; and (h) Photographs showing surface roughness, voids, size, and shape. Equipment and procedures were designed to obtain the above listed properties. Work was continued on the mathematical analysis of accelerometer performance, and procedures set up to clean equipment and beads. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1960
Accession Number
AD0257745

Entities

People

  • William Nicolini

Organizations

  • General Electric

Tags

DTIC Thesaurus Topics

  • Accelerometers
  • Communication Equipment
  • Confidence Limits
  • Diameters
  • Mathematical Analysis
  • Mathematics
  • Navigational Equipment
  • Photographs
  • Photography
  • Physical Properties
  • Roughness
  • Surface Roughness

Readers

  • Geotechnical Engineering.
  • Molecular and Cellular Biochemistry
  • Statistical inference.