Accession Number : ADA183081

Title :   Filber Optic Engineering Sensor System Concept Design Review Data Package.

Corporate Author : NKF ENGINEERING INC RESTON VA

Report Date : APR 1987

Pagination or Media Count : 199

Abstract : The use of fiber optic technology in shipboard IC systems has several conceptual advantages over existing systems including improved reliability, weight savings, and advanced signal quality. This is discussed elsewhere in the presentation. At the outset of the FOESS design effort, however, the NKF team has considered it necessary to review the fundamental requirements for the communication system itself to ensure that the development effort as proposed and subsequently carried out in Phase I aims at the correct objective. Our analysis of mission needs leads us to the conclusion that the following design elements are paramount from the aspect of satisfactory mission performance. The sub-systems chosen for application of fiber optic technology are generally those which involve monitoring of dynamic systems or security check points and the subsequent sounding of appropriate signals when alarm conditions occur. Clearly these systems must be extremely reliable, but in addition to the more typical failure criteria associated with system breakdown, FOESS must be accurate; i.e., there must be a minimum of false alarm signals transmitted to the operators else the alarm system will soon be ignored, or worse, deenergized. Philosophically, the desired FOESS reliability (defined as the probability that the system will be in a satisfactory operating condition at a random point in time) should approach unity; likewise, the probability of false alarms should approach zero.

Descriptors :   *FIBER OPTICS, *WARNING SYSTEMS, *COMMUNICATION AND RADIO SYSTEMS, *FALSE ALARMS, DYNAMICS, FAILURE, FALSE SIGNALS, MISSIONS, MONITORING, PROBABILITY, QUALITY, RELIABILITY, SIGNALS, WARNING SYSTEMS, WEIGHT REDUCTION.

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE