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SAW sensor – Parameter
Type 8098 FLOWave L
15.13 Setting the parameters of the acoustic transmission
factor (optional feature)
15.13.1 What is the acoustic transmission factor?
The acoustic transmission factor makes it possible to know the quality of the transmission of sound in the
liquid thus the reliability of the measurements.
Indeed, the wave transit time in the liquid and the wave amplitude change depending on the following
criteria:
• the type of liquid: aqueous solution, oil solution, emulsion, ...
• the presence of gas bubbles,
• the presence of solid particles,
• the liquid temperature,
• the DN of the pipe.
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The temperature changes of the liquid are not compensated for the measurement of the acoustic trans-
mission factor.
•
•
the concentration of gas bubbles or solid particles increases in a liquid, the acoustic transmission factor
decreases. So, measuring and monitoring the acoustic transmission factor can be used to detect the
presence of gas bubbles or solid particles in the liquid.
→
acoustic transmission factor value.
15.13.2 Giving a user dened name to the measured acoustic
transmission factor
Outputs menu).
By default, the name associated to the measured acoustic transmission factor is Acoustictransmis..
→ Go to the CONFIGURATION view.
→ SAWsensor
→ Parameter view.
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