Accession Number:

ADA279250

Title:

Implementation of Ramped Pressure Technique to Measure Acoustic Sensitivity of Fibre Optic Hydrophone Transducers

Descriptive Note:

Technical rept.

Corporate Author:

MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)

Personal Author(s):

• Magi, Eric C.

Report Date:

1994-02-01

Pagination or Media Count:

23.0

Abstract:

The theoretical and practical implementation of a measurement technique to obtain both the low frequency acoustic and thermal sensitivities of a fibre optic hydrophone is discussed. An analysis program based on the theory was implemented in Microsoft Excel to obtain the pressure sensitivity of a fibre optic interferometric hydrophone transducer. This method is based on ramping pressures at different rates. A major advantage of the technique is the temperature and pressure effects are clearly delineated and the test system need not be in thermal equilibrium.

Descriptors:

• *ACOUSTICS
• *HYDROPHONES
• TEST AND EVALUATION
• FIBER OPTICS
• FREQUENCY
• MEASUREMENT
• TEMPERATURE
• LOW FREQUENCY
• AUSTRALIA
• TRANSDUCERS
• THEORY
• RATES
• SENSITIVITY
• PRESSURE

Subject Categories:

• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE