Source Level (SL) of Ping Single-beam Echosounder

[EliotBR (Eliot)]

Hi @abubakrazam, welcome to the forum

@abubakrazam

I need to know the source level (SL) of the Ping single-beam echosounder.

@EliotBR

the returned intensity data is in fact from the measured voltage, and we don’t have a known/calibrated conversion between the measurement and a physical quantity/unit of intensity. The transducers we use are custom, and the amplification circuitry involved for receiving further complicates a potential theoretical estimate.

I’m told we’re aiming to get experimental calibration data, which should include the relevant conversion factors and also map out the transmit and receive profiles across direction and sound frequency, but there isn’t yet a definitive timeline on when that will be completed

@abubakrazam

Is there a way to calculate it, without using the active SONAR equation?

I don’t expect that’s possible without measured data from experiments, or a detailed analysis of the acoustic properties of the transducer design, neither of which are available at this point.

We have plans to measure and release a beam profile, but there’s also no fixed date on when that will be complete.