RP Acoustics FOPH 2000

Application: RP Acoustics

The Challenge

In order to optimize performance in an acoustic cavitation system, shock waves generated from cavitation events must be understood and manipulated in order to precisely control the process interaction taking place during cavitation.

Key concepts

Shock wave Measurement, use of fiber optic probe hydrophone (FOPH) supplied by RP Acoustics, LabView software, photomultiplier tubes, high speed photography.

The Impulse Solution

Impulse has extensive experience in using, and characterizing pressure sensors for measurement of broadband acoustic signals, including shock waves produced during cavitation. The choice of sensors was a critical factor and required state-of-the art fiber-optic probe hydrophone (FOPH) to monitor the shock waves very close to the actual cavitation events.  The decision was made to use us the RP Acoustics model FOPH 2000 With this high precision instrument, Impulse was able to monitor the FOPH signal for shock amplitude, images of the cavitation events from a high speed camera (1.5 million frames per second), and signal profiles from photo multiplier tubes (PMTs) capturing the sonoluminesence produced during cavitation.

Using innovative data manipulation techniques, the RP Acoustics FOPH 2000 and LabView software, Impulse combined all this system data and provided the customer with a complete picture of the shock wave profiles produced during cavitation in their application. The particular shock profiles needed for their process were then created by manipulating system operating conditions such as static pressure, acoustic resonance frequency, and liquid temperature.