ROV / AUV probe (for sound velocity calculation in water)
SVP 71
Reson
The SVP 7x probes are direct reading sound velocity probes for professional applications. They employ state of the art correlation techniques in an FPGA implementation for finding the speed of sound in the medium with the highest accuracy. The probes have a very compact design without sacrificing the length of the signal path, which is of utmost importance in returning accurate results. On an overall length of 160mm the sound transmission path is 125mm. The novel design of the SVP allows for simpler integration with less disturbances of the water flow, yielding a low emission of noise into nearby sensors like echosounder, sonar systems, Doppler logs etc. Ping synchronization allows for low integration risk. The electrical interface includes wide input power (9 to 55V, approx. 2W) and dual serial interfaces according to RS-232 and RS-4221 (full standard voltage swings, >500m range). There is no galvanic connection between the power input and the serial output. Measurements can run at a user specified sampling frequency or can be synchronized to an external trigger to ensure no acoustic interference problems, which would otherwise be present .
Selectable processing includes outlier removal and low pass filtering for use when the unfiltered measurements are not adequate .
-
zoom
