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Valve actuator

A technology for actuators and processors, which is applied in the field of frequency analysis and can solve problems such as unintegrated speed sensors

Active Publication Date: 2014-11-12
FLOWSERVE MANAGEMENT CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the speed sensor is not integrated into the absolute encoder and does not generate speed data for frequency analysis

Method used

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  • Valve actuator
  • Valve actuator
  • Valve actuator

Examples

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Embodiment Construction

[0034] The invention may be used with any valve actuator or other rotating device, such as a device that rotates between two positions. Certain embodiments of the invention utilize rotary encoders with integrated speed sensors. A speed sensor is operable to generate speed data for frequency analysis. Another type of sensor capable of generating data that can be transformed into the frequency domain can also be used with the present invention. Whereas frequency analysis can be used to diagnose any problems with valve actuators or other rotating devices. In one embodiment, the rotary encoder is an absolute encoder with repeating sensor pairs.

[0035] In the drawings, like reference numerals denote like elements. figure 1 One embodiment of the rotary encoder of the present invention is shown. The rotary encoder 1 represents a specific embodiment of an absolute encoder. The terms "wheel" or "wheels" without modifiers such as "input", "timing" or "encoding" are applicable to ...

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Abstract

The invention relates to a valve actuator which comprises an absolute encoder and a transmission system applicable to drive the absolute encoder. The absolute encoder comprises at least one encoder disc, a plurality of sensors, a speed sensor and at least one repeat sensor. The plurality of the sensors can be operated to read the at least one encoder disc; the speed sensor can be operated to generate speed data; and the at least one repeat sensor is used for the plurality of the sensors and the speed sensor.

Description

[0001] This application is a divisional application filed on September 10, 2010 (the application date is April 21, 2006, the national application number is 201010289033.4, and the invention name is "rotary encoder with built-in self-test") . The divisional application submitted on September 10, 2010 is a PCT patent application that has entered the Chinese national phase (the application date is April 21, 2006, the national application number is 200680055069.8, the international application number is PCT / US2006 / 015174, the invention Divisional application titled "Rotary Encoder with Built-in Self-Test"). technical field [0002] The present invention relates generally to the analysis of valve actuators and rotary position encoders, and more particularly to performing frequency analysis on valve actuators and rotary position encoders using built-in self-test. Background technique [0003] In many applications it is necessary to measure the position of the axis of rotation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/00F16K37/00G01D5/347
Inventor W.T.多伦蒂B.弗罗伊里D.J.莫里斯W.C.霍斯
Owner FLOWSERVE MANAGEMENT CO