The transducers in this category measure changes in machine case positions as they expand or contract, rotary or linear position of control valves suppliers, or wicket gate position on hydroelectric turbines. They are typically used in conjunction with other transducers as part of a Turbine Supervisory Instrumentation (TSI) package, designed to monitor all critical machinery parameters on large steam, gas, or hydraulic turbines used in power generation applications.
This innovative transducer incorporates a proximity probe observing an eccentric cam. The changing gap between probe tip and cam corresponds to degrees of rotation, and is specifically designed for cock position measurements. It is a superior alternative to older potentiometer transducers which have poor reliability.
