A control box transmits an electronic pulse to a ceramic crystal called a transducer that is mounted to the boat's transom or hull.
To do that, the ship dropped a series of bottom-placed transducers, which detected the force and direction of the water's flow and transmitted that information to a shipboard .
No such underwater transducer (noisemaker) had been built before, but the very first units were successful.
AC Current Transducer monitors heating element controls. Without requiring external current transformer or shorting blocks, ATH Series monitors power controlled by phase-angled fired, burst fired, or time proportioned silicon-controlled rectifiers in heating applications. Time Integration functionality provides output signal directly proportional to RMS amperage. Installed via 2-screw panel mount or with optional DIN rail brackets, transducer is ...
June 11, 2013 - ThomasNet