1
Steven P Nuspl, Edmund P Szmania, John A Kleppe, Peter R Norton: Acoustic pyrometer. The Babcock & Wilcox Company, Vytas R Matas, Robert J Edwards, Eric Marich, July 18, 1989: US04848924 (246 worldwide citation)

An apparatus and method for measuring high temperatures in a boiler transmits pulses of acoustic waves, from one side wall of the boiler to an opposite side wall thereof. Acoustic noise within the boiler, as well as the transmitted pulses of acoustic waves are received at the opposite side of the bo ...


2
Dean E Draxton, James G Droppo III, Richard E Hogle, George Kychakoff: Acoustic pyrometer. Combustion Specialists, J Michael Neary, December 28, 2004: US06834992 (10 worldwide citation)

An acoustic pyrometer measures the average gas temperature across a wide space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a short rise time and a detecto ...


3
Dean E Draxton, James G Droppo III, Richard E Hogle, George Kychakoff: Acoustic pyrometer. Combustion Specialists, J Michael Neary, May 14, 2002: US06386755 (9 worldwide citation)

An acoustic pyrometer measures the average gas temperature across a wide space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a short rise time and a detecto ...


4
William Norris, John A Kleppe, Dana R McPherson: Apparatus and methods for acoustically determining internal characteristics of an engine and the like. Board of Regents of the University and College System of Nevada on behalf of the University of Nevada Reno, Klarquist Sparkman, July 20, 2010: US07761216 (6 worldwide citation)

Apparatus and methods are disclosed for determining internal engine characteristics using acoustic-vibration data. Exemplary such data are passive acoustic pyrometer data. Acoustic-vibrational frequencies emanating from a running engine are detected and compared to frequencies having known relations ...


5
George Kychakoff, Michael F Anna, Ed Danzer: Low pressure acoustic pyrometer signal generator. Enertechnix, J Michael Neary, October 14, 2008: US07434988 (5 worldwide citation)

An acoustic pyrometer measures the average gas temperature across a space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a short rise time The acoustic signa ...


6
Dean E Draxton, James G Droppo III, Richard E Hogle, George Kychakoff: Acoustic pyrometer. Combustion Specialists, J Michael Neary, April 27, 2004: US06726358 (5 worldwide citation)

An acoustic pyrometer measures the average gas temperature across a wide space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a short rise time and a detecto ...


7
Heiko Claussen, Justinian Rosca, Michelle Xiaohong Yan, Upul P DeSilva, Nancy H Ulerich: Noise robust time of flight estimation for acoustic pyrometry. Siemens Corporation, July 11, 2017: US09702768

An acoustic signal traversing a hot gas is sampled at a source and a receiver and is represented in overlapping windows that maximize useable signal content. Samples in each window are processed to represented in different sparsified bins in the frequency domain. Determining a signal delay between t ...


8
COSTA CYRO DE ANDRADE MARTINS: [en] Improvements in Acoustic Pyrometers.. COSTA CYRO DE ANDRADE MARTINS, June 13, 1912: GB191125265-A

[en] 25,265. Costa, C. de A. M. Nov. 1 Pyrometers.-Consists of an acoustic pyrometer comprising a pipe of fixed length adapted to be placed in the furnace, and a pipe of adjustable length which remains outside the furnace, both pipes being sounded by air &c. forced into them. The pipe b of fixed len ...


9
Nuspl Steven Paul, Kleppe John Arthur, Szmania Edmund P, Norton Peter Richard: Pyrometre acoustique, Acoustic pyrometer. Babcock &Amp Wilcox Company, RIDOUT & MAYBEE, March 30, 1993: CA1315386

ABSTRACT An apparatus and method for measuring high temperaturesin a boiler transmits pulses of acoustic waves from one sidewall of the boiler to an opposite side wall thereof. Acousticnoise within the boiler, as well as the transmitted pulses ofacoustic waves are received at the opposite side of th ...


10
William Norris, John A Kleppe, Dana R McPherson: Apparatus and methods for acoustically determining internal characteristics of an engine and the like. Klarquist Sparkman, February 1, 2007: US20070027607-A1

Apparatus and methods are disclosed for determining internal engine characteristics using acoustic-vibration data. Exemplary such data are passive acoustic pyrometer data. Acoustic-vibrational frequencies emanating from a running engine are detected and compared to frequencies having known relations ...