Methods and apparatus for monitoring rotary machines

Details Methods and apparatus for monitoring rotary machines Methods and apparatus for monitoring rotary machines

2006-06-19

2010-10-05

Aurora, Reena (Department: 2858)

Electricity: measuring and testing

Magnetic

Displacement

C324S174000

Reexamination Certificate

active

07808233

ABSTRACT:
A rotary machine includes at least one rotating member and at least one stationary member positioned such that a clearance gap is defined between a portion of the at least one rotating member and a portion of the at least one stationary member. The clearance gap has a measurable radial dimension and a measurable magnetic flux is generated in the clearance gap at least partially by relative movement between the stationary member and the rotating member. A method of monitoring a clearance gap measurement system for the rotary machine includes providing at least one clearance gap measurement assembly. The measurement assembly has at least one dimension measurement apparatus and at least one magnetic flux measurement apparatus. The method also includes positioning the at least one measurement assembly on the stationary member to facilitate measurements of the clearance gap during operation of the rotary machine.

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European Search Report and Opinion, European Patent Office, Application No. 07110410.3-2207, Date of Completion of Search Oct. 26, 2007, 7 pages.

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