Verbrennungsdiagnostik

Basshuysen, Richard van; Schäfer, Fred

doi:10.1007/978-3-322-99860-6_25

Cited by 1 publication

(1 citation statement)

References 5 publications

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“…With the variety of applications also the working temperatures of the different energy conversion systems differ from each other. For example, photovoltaic modules work typically at temperatures from around room temperature to up to about 100 °C [3,4], whereas engines in cars work typically at around 400 °C-600 °C [5,6] and the blades of turbines at around 1000 °C [7]. Regarding energy conversion via 'classic' thermodynamic processes, higher temperatures are desired as the Carnot efficiency increases with larger temperature gradients [8].…”

Section: Introductionmentioning

confidence: 99%

Contactless temperature determination using dual-channel lock-in phosphor thermometry

Hashemi¹,

Jovičić²,

Batentschuk³

et al. 2016

Meas. Sci. Technol.

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In this paper, we present dual-channel lock-in phosphor thermometry, which offers an option of accurate and contactless temperature determination under high environmental noise. We studied YAG:Dy as thermographic phosphor at an excitation wavelength of 405 nm. We tested our approach under different experimental conditions with noise levels of about 550, 1060 and 2190 times larger than the excitation signal. With the dual-channel lock-in setup, we were able to suppress the strong noise in all cases and to reliably determine surface temperature using our optical measurements (error < 10 K). Additionally, the effect of signal to noise ratio, lock-in frequency and lock-in bandwidth on temperature determination accuracy was studied in this work.

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