.~ By a vibratory effect (e.g., resonant frequency, acoustical) {2}
118
.~.~ Resonant frequency by fluid flow
DEFINITION
Classification: 374/118
Resonant frequency by fluid flow:
(under subclass 117) Subject matter wherein the temperature is determined by the frequency of mechanical or acoustical resonance measured by fluid flow.
(1)
Such elements are often resonating chamber devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
135, for temperature measurement by fluid flow other than by resonant vibration production.
SEE OR SEARCH CLASS
116, Signals and Indicators,
137, for fluid flow acoustical generators, in general. 137, Fluid Handling,
804+, for fluidic oscillators absent an indicating arrangement.
