Title:
冗長位置検出型直結駆動サーボ弁装置及びその作成方法
Document Type and Number:
Japanese Patent JP4511594
Kind Code:
B2
Abstract:
A direct drive servovalve device includes (i) a servovalve motor having a stator and a rotor assembly configured to rotate relative to the stator, (ii) a valve member coupled to the rotor assembly, and (iii) a sensor assembly. The sensor assembly includes an interface configured to couple to a controller that controls the servovalve motor, a set of programmable Hall sensors coupled to the interface, and a support. The support (e.g., a ring-shaped collar or sleeve) supports the set of Hall sensors at an installation location which is (i) adjacent to the rotor assembly and (ii) fixed relative to the stator. The set of programmable Hall sensors is configured to provide a set of position signals to the controller through the interface. The set of position signals identifies a rotational position of the rotor assembly relative to the stator.
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Inventors:
Cokley, kim
Russell Besinger
Russell Besinger
Application Number:
JP2007511357A
Publication Date:
July 28, 2010
Filing Date:
March 11, 2005
Export Citation:
Assignee:
Woodward HRD Inc.
International Classes:
G01D5/14; F16K37/00; G01B7/30
Domestic Patent References:
| JP2002276611A | ||||
| JP2285212A | ||||
| JP63136945A |
Foreign References:
| US6288567 |
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma
Go Sakuma