The Optimum Voltage for an Aquadopp

Hello,

We are providing DCDC converted power to an array of Aquadopps so we can control the voltage to each instrument. Hence, we can account for filtering loss and line loss. What is the optimum voltage the Aquadopp would like to see to maximise power into the water and while considering the longevity of the instrument?

Is there a tested relationship between input power and acoustic power into the water on Aquadopps. I know there is for RDI ADCPs and they have sreadsheets to calculate for it - is there anything similar for the Aquadopps?

I suspect the real question is: how much voltage can we get away with, without harming the components in the instrument?

Cheers, Steve

Dear Steve

The Aquadopp that we currently ship has a V^2/R type transmitter so that the output is proportional to the square of the supply voltage.  The voltage range is normally stated as 9-16 VDC.  At 8V will stop and above 16 V you are potentially shortening the life time of the system. Anywhere in between is fine.  As far as I know there is no "best" voltage.

Best regards, Atle Lohrmann