Abstract
The application of pulsed photoacoustics to the study of liquids at
pressures of up to 350 bars is discussed. The design and
development of an in-line sensor for the subsea monitoring of crude oil
concentrations in water is reported. Crude oil detection
sensitivities at parts per million concentrations were achieved with
prototype instrumentation. A comparison of experimental results and
a theoretical prediction of the pressure dependence of the pulsed
photoacoustic response from water is outlined. The results
demonstrate that existing models that describe pulsed photoacoustic
generation in liquids are applicable to high-pressure
conditions.
© 1999 Optical Society of America
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