skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method of measuring reactive acoustic power density in a fluid

Abstract

A method for determining reactive acoustic power density level and its direction in a fluid using a single sensor is disclosed. In the preferred embodiment, an apparatus for conducting the method, which is termed a thermoacoustic couple, consists of a stack of thin, spaced apart polymeric plates, selected ones of which include multiple bimetallic thermocouple junctions positioned along opposite end edges thereof. The thermocouple junctions are connected in series in the nature of a thermopile, and are arranged so as to be responsive to small temperature differences between the opposite edges of the plates. The magnitude of the temperature difference, as represented by the magnitude of the electrical potential difference generated by the thermopile, is found to be directly related to the level of acoustic power density in the gas. 5 figs.

Inventors:
; ;
Issue Date:
OSTI Identifier:
7155536
Patent Number(s):
4538464 A
Application Number:
PPN: US 6-539013
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 4 Oct 1983
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; REACTOR INSTRUMENTATION; DESIGN; REACTORS; POWER DENSITY; ACOUSTIC DETECTION; ACOUSTIC MONITORING; FLUIDS; POWER; REACTOR MONITORING SYSTEMS; SOUND WAVES; THERMOCOUPLES; ACOUSTIC MEASUREMENTS; CHARGED PARTICLE DETECTION; DETECTION; MEASURING INSTRUMENTS; MONITORING; RADIATION DETECTION; 220400* - Nuclear Reactor Technology- Control Systems

Citation Formats

Wheatley, J C, Swift, G W, and Migliori, A. Method of measuring reactive acoustic power density in a fluid. United States: N. p., 1985. Web.
Wheatley, J C, Swift, G W, & Migliori, A. Method of measuring reactive acoustic power density in a fluid. United States.
Wheatley, J C, Swift, G W, and Migliori, A. Tue . "Method of measuring reactive acoustic power density in a fluid". United States.
@article{osti_7155536,
title = {Method of measuring reactive acoustic power density in a fluid},
author = {Wheatley, J C and Swift, G W and Migliori, A},
abstractNote = {A method for determining reactive acoustic power density level and its direction in a fluid using a single sensor is disclosed. In the preferred embodiment, an apparatus for conducting the method, which is termed a thermoacoustic couple, consists of a stack of thin, spaced apart polymeric plates, selected ones of which include multiple bimetallic thermocouple junctions positioned along opposite end edges thereof. The thermocouple junctions are connected in series in the nature of a thermopile, and are arranged so as to be responsive to small temperature differences between the opposite edges of the plates. The magnitude of the temperature difference, as represented by the magnitude of the electrical potential difference generated by the thermopile, is found to be directly related to the level of acoustic power density in the gas. 5 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {9}
}