John Reschovsky, president, Accumetrics Associates, Inc., Schenectady, NY

Articles

Process Instrumentation and Sensors December 1, 2001

Digital rotor telemetry

The major challenge, when electrical sensors are mounted on rotating structures, is getting the signals off the rotor. Direct wire connection is not possible. Sometimes slip rings are employed but the sliding contacts are limited in operating life and produce electrical noise as they wear, often obscuring or corrupting the meaningful information from the low level sensor signals.

By John Reschovsky, president, Accumetrics Associates, Inc., Schenectady, NY