Invention Grant
- Patent Title: Blade tip timing
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Application No.: US14204210Application Date: 2014-03-11
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Publication No.: US10281297B2Publication Date: 2019-05-07
- Inventor: Peter Russhard , Jason David Back
- Applicant: ROLLS-ROYCE PLC
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE plc
- Current Assignee: ROLLS-ROYCE plc
- Current Assignee Address: GB London
- Agency: Oliff PLC
- Priority: GB1305199.0 20130321
- Main IPC: G01D3/02
- IPC: G01D3/02 ; G01H1/00 ; F01D17/02 ; F01D21/00 ; G01M15/14

Abstract:
A method of zeroing displacement data derived from a rotor having an array of features monitored by an array of stationary timing probes. The method includes steps to calculate the displacement at each probe for each of at least two measured revolutions from time of arrival measurements. Each displacement is defined as a sum of a common term and a unique term. The set of displacements is solved for the common term and the unique terms. A probe offset is calculated from each unique term. The zeroed displacements are determined by subtracting the common term and probe offset from the calculated displacements for each probe.
Public/Granted literature
- US20140288865A1 BLADE TIP TIMING Public/Granted day:2014-09-25
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