WIRELESS POSITION TRANSDUCER AND CONTROL METHOD FOR A VALVE

A wireless position transducer for a valve in a process control system converts a motion or a position of an actuator of the valve into a wireless signal including a value indicative of the position of the actuator. The transducer causes the wireless signal to be transmitted over a wireless communic...

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Bibliographische Detailangaben
1. Verfasser:	MILLER, LORIN DION
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SELECTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A wireless position transducer for a valve in a process control system converts a motion or a position of an actuator of the valve into a wireless signal including a value indicative of the position of the actuator. The transducer causes the wireless signal to be transmitted over a wireless communication channel to a valve controller, such as by using a wireless HART protocol. The wireless communication channel is an exclusive connection between the transducer and the controller, and the transducer is powered by a local rechargeable energy storage device. The controller controls the valve based on the value included in the wireless signal. The transducer may also cause the wireless signal to be transmitted to a control host of the process control system.