active transducer

active transducer

[′ak·tiv tranz′düs·ər]
(electronics)
A transducer whose output is dependent upon sources of power, apart from that supplied by any of the actuating signals, which power is controlled by one or more of these signals.
References in periodicals archive ?
The pH electrode is an active transducer requiring energy for its operation.
By incorporating four active transducers and two visible JBL Bass Radiators, the JBL Xtreme produces sound you can feel," according to a statement.
Currently being reviewed by the Innovative Design Association for the best design of 1997, the wand illuminates in a "light show" that reflects the positions of the active transducers.