OFF-AXIS POSITION MONITORING AND CONTROL SYSTEM AND RELATED METHODS

A flow control valve and a valve-position monitoring and control system coupled to the valve member and configured to precisely determine valve conditions related to the rotary position of the valve member. The system has an array of spaced apart transducers in an arcuate arrangement and in a fixed,...

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Bibliographische Detailangaben
1. Verfasser:	Robson Christopher J
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MECHANICAL ENGINEERING PHYSICS RANGES TAPS TARIFF METERING APPARATUS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TESTING THERMAL INSULATION IN GENERAL VALVES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	A flow control valve and a valve-position monitoring and control system coupled to the valve member and configured to precisely determine valve conditions related to the rotary position of the valve member. The system has an array of spaced apart transducers in an arcuate arrangement and in a fixed, non-moveable position relative to the valve's housing. A magnetic-field source is fixed to and rotates with the valve member as a unit. The magnetic-field source includes magnetic members adjacent to and out of physical engagement with the transducers. The magnetic member moves along an arcuate path parallel to the arcuate arrangement of the transducers as the valve member rotates through the plurality of rotary positions. The magnetic-field source provides magnetic flux detectable by at least a plurality of the transducers to precisely determine the rotational position of the magnetic-field source and/or the valve member, and the fluid flow rate through the control valve.