DIGIBAR-PRO-a new hand-held, interactive velocimeter

A new product from Odom Hydrographic Systems, the DIGIBAR-PRO, provides a fast, accurate, and safe method for calibrating single beam and multibeam echo sounders. The DIGIBAR-PRO probe is lowered over the side to measure sound velocity in the water column, collecting samples automatically in either time or depth intervals. Data is logged by a hand-held unit and later downloaded to the survey computer for echo sounder corrections based on average water column velocity or the velocity profile. DIGIBAR-PRO measures sound velocity using the “sing-around” principle and samples depth by means of a pressure sensor. The velocimeter compensates for all local influences including temperature and salinity. Calibrating the depth sensor is easy-lower the probe to the depth marked on the cable (one meter) and press the calibrate button. From this point, velocity samples (and depths) are collected as the probe is lowered or raised