Specification for Fiber Hydrophone System
Abstract
This specification establishes the performance requirements for a fiber optic hydrophone system designed to measure dynamic acoustic pressures at multiple locations external to the hull of U.S. Navy submarines. The requirements are as follows: The hydrophone system shall consist of a sensing portion (the hydrophone) which is located external to the pressure hull of the vessel. Each hydrophone is connected to an inboard electro-optics unit via fiber optic cables. The system shall contain ten identical, interchangeable hydrophones distributed throughout the hull. A single electro-optics unit is required. This unit contains one laser module and ten identical receiver modules. The laser module provides optical the modulated optical signal from each hydrophone and converts this modulation to a voltage that is proportional to the dynamics acoustic pressure at that hydrophone location. The remote hydrophones contain no active electronics and require no electrical power. The hydrophone is suspended in a webbed neoprene rubber structure mounted in a mounting bracket. Keywords: Quality assurance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1988
- Accession Number
- ADA197662
Entities
People
- Michael R. Layton