Vibration Sensitivity of a Wide-Temperature Electronically Scanned Pressure Measurement (Esp) Module

By: Nasa, National Aeronautics and Space Adm

A vibration sensitivity test was conducted on a Wide-Temperature ESP module. The test object was Module "M4," a 16-channel, 4 psi unit scheduled for installation in the Arc Sector of NTF. The module was installed on a vibration exciter and loaded to positive then negative full-scale pressures (+/-2.5 psid). Test variables were the following: Vibration frequencies: 20, 55, 75 Hz. Vibration level: 1 g. Vibration axes: X, Y, Z. The pressure response was measured on each channel, first without and then with the vibration turned on, and the difference analyzed by means of the statistical t-test. The results show that the vibration sensitivity does not exceed 0.01% Full Scale Output per g (with the exception of one channel on one axis) to a 95 percent confidence level. This specification, limited by the resolution of the pressure source, lies well below the total uncertainty specification of 0.1 percent Full Scale Output.Zuckerwar, Allan J. and Garza, Frederico R.Langley Research CenterPRESSURE MEASUREMENT; SENSITIVITY ANALYSIS; TEMPERATURE; VIBRATION TESTS; ELECTRONIC MODULES; RESONANT FREQUENCIES; SCANNING; CONFIDENCE LIMITS

• Format: Paperback
• Language: English
• ISBN: 1723772925
• ISBN13: 9781723772924
• Release Date: January 1
• Publisher: Independently Published
• Length: 42 Pages
• Weight: 0.27 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"