Direct current displacement transducer

CV cardiovascular DCDT direct current displacement transducer... 

The whole aim behind present ERF developments is to provide a means of control/adaptronics (that is easy to apply and economical) to a mechanism that has to be by its nature flexible in force, displacement or speed and hydraulically operated. Electronic solid-state semiconductor devices and computers are powerful, inexpensive and adequate for many applications in control, and yet their interface with hydraulic machines usually involves a bulky solenoid or an expensive servo-valve, often with a pilot stage and a power su > ply. The aim of ER research is to be able to influence a hydraulic mechanism directly with a current low enough to allow the integration of a system made up of electronic transducing and signal-conditioning equipment, computer processors and feedback monitoring, solid-state controllable field-excitation... 

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