Performance of the Communication Enhancement and Protective System (CEPS) Under Sustained High and Low Temperatures
Abstract
The USAARL conducted airworthiness testing on the Communication Enhancement and Protection System (CEPS). The test plan included conducting acoustic performance evaluations of the CEPS to determine if the CEPS would maintains clear and audible communications to the ear of the user and all its components would remain operational after exposure to sustained high and low temperatures conditions (Department of Defense Test Method Standard for Environmental Engineering Considerations and Laboratory Tests MIL-STD-810F). The CEPS met the test criteria after the high temperature operation test (49 deg C) and the high temperature storage tests (52 deg C). The device failed to meet the criteria after the maximum high temperature storage test (63 deg C), possibly because of a component failure. The device met the test criteria after the low temperature operation test (-19 deg C) and after one iteration each of a 4-hr low temperature storage test conducted at -21 deg C and -33 deg C. The device failed the test criteria after one low temperature storage test (-46 deg C), possibly because of component failure. In each case of component failure, the tube of the right microphone had become detached from the faceplate; measurements were erratic or could not be completed and testing was ended. It is recommended that the CEPS not be stored at temperatures higher than 52 deg C longer than 6 hours or below -33 deg C, and must be protected from condensation after exposure to low temperature operation and storage.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2008
- Accession Number
- ADA481814
Entities
People
- Adrianus J. Houtsma
- Elmaree Gordon
Organizations
- United States Army Aeromedical Research Lab