Patent · US Active

Acoustic measurement system incorporating a hybrid waveguide providing thermal isolation

US10031032B2 · kind B2 · utility

2Cited by
8References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 16, 2015
Grant dateJul 24, 2018
Priority date—
Expiry dateAug 11, 2036

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01K2205/00
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A gas turbine engine including a hybrid waveguide for placement adjacent a flow path for hot combustion gases in the engine is presented. The waveguide includes first and second opposing ends and a first section formed of a first material extending from a transition region to the first end and a second section formed of a second material extending from the transition region to the second end. The first material is a metal or a ceramic and the second material is an electrically isolating material having a lower thermal conductivity than the material of the first section. A membrane may be used to isolate a cavity of the waveguide from combustion gas.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.