Smart Materials Used in Frequency-Selective Passive Sensors
Abstract
A low-cost passive system that senses and records the maximum pressure excursion in a specific frequency range was recently designed and tested. The system uses microballoons mixed into grease as a pressure sensing smart material. The frequency selection was achieved by using a fluidic filter. The fundamentals behind the design, the design details, and the launch performance are presented. The system was designed, built, and deployed to passively record the maximum gas pressure in a selected frequency range at a number of positions on the pad during a Titan IV launch. The design fundamentals and data obtained during a recent launch are presented.... Pressure sensor, Microballoons, Smart material, Titan IV.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 20, 1993
- Accession Number
- ADA268060
Entities
People
- G. F. Hawkins
- J. R. Lhota
- P. M. Sheafer
Organizations
- The Aerospace Corporation