A transducer is a device, usually
electrical,
electronic,
electro-mechanical,
electromagnetic,
photonic, or
photovoltaic that converts one type of
energy
or physical attribute to another for various purposes including
measurement or information transfer (for example,
pressure sensors).
The term transducer is commonly used in two senses; the
sensor,
used to detect a parameter in one form and report it in another (usually
an electrical or digital signal), and the audio loudspeaker, which
converts electrical voltage variations representing music or speech, to
mechanical cone vibration and hence vibrates air molecules creating
acoustical energy. This energy can be displayed on a graphical display
such as a fishfinder
or Marine
Multifunction Display.
Marine transducers are designed to withstand water pressure and reasonable use.
They can not withstand serious mechanical shock, and should be cleaned every
time the vessel is removed from the water.
