Electron temperature of a hydrocarbon flame

Ivashchenko, Yu. S.; Korobchenko, Yu. G.; Bondarenko, T. S.

doi:10.1007/bf00744765

Cited by 2 publications

(2 citation statements)

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“…Therefore, Johnson noise can also be found in the highly ionised gas of plasmas and combustion processes. Ivashchenko et al [12] describes a model of the two ionisation mechanisms in a hydrocarbon flame, and measurements of the temperature of an oxy-acetylene flame using two different sensing modes operating between 5 MHz and 30 MHz. They recorded noise temperatures in the range 1000 K to 1950 K, depending on the combustion conditions, the method of measurement, and the measurement mode.…”

Section: Plasma and Hot Gas Thermometrymentioning

confidence: 99%

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Johnson noise thermometry

Benz

Rogalla

et al. 2019

Meas. Sci. Technol.

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Johnson noise thermometers infer thermodynamic temperature from measurements of the thermally-induced current fluctuations that occur in all electrical conductors. This paper reviews the status of Johnson noise thermometry and its prospects for both metrological measurements and for practical applications in industry. The review begins with a brief description of the foundations and principles of Johnson noise thermometry before outlining the many different techniques and technological breakthroughs that have enabled the application of Johnson noise thermometry to high-accuracy, cryogenic, and industrial thermometry. Finally, the future of noise thermometry is considered. As the only purely electronic approach to thermodynamic temperature measurement, Johnson noise thermometry has appeal for metrological applications at temperatures ranging from below 1 mK up to 800 K. With the rapid advances in digital technologies, there are also expectations that noise thermometry will become a practical option for some industrial applications, perhaps reaching temperatures above 2000 K.

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Section: Plasma and Hot Gas Thermometrymentioning

confidence: 99%

“…No other temperature sensor has such immunity to material changes. Indeed, JNT sensors do not need to be metallic conductors; electrolytic solutions [4], graphite rope [11], and even the plasma of combustion processes have been used as sensors [12].…”

Section: Introductionmentioning

confidence: 99%