Thermal spray diagnostics

US10724999B2 · kind B2 · utility

Assignee

• Rolls-Royce Corporation · US

Inventors

• Michael Cybulsky · Indianapolis, US
• Raymond J. Sinatra · Indianapolis, US
• Matthew R. Gold · Carmel, US
• Taylor K. Blair · Indianapolis, US
• Gary Pickrell · Blacksburg, US
• Romesh Batra · Blacksburg, US

Key dates

• Filing date: Jun 3, 2016
• Grant date: Jul 28, 2020
• Expiry date: Jul 14, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/02836
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An example system includes at least one acoustic sensor configured to generate at least one time-dependent acoustic data signal indicative of an acoustic signal generated by a thermal spray system performing a process possessing a plurality of process attributes, and a computing device including an acoustic data signal processing module configured to receive the at least one time-dependent acoustic data signal, and transform the at least one time-dependent acoustic data signal to a frequency-domain spectrum, wherein each process attribute of the plurality of process attributes is associated with at least one respective frequency band, and a correlation module configured to determine a process attribute of the plurality of process attributes by identifying at least one characteristic of the frequency-domain spectrum.