An experimental study of a radially arranged thin-film heat-flux gauge

Cho, Christopher S K; Fralick, Gustave C.; Bhatt, H.D.

doi:10.1088/0957-0233/8/7/005

Cited by 19 publications

(6 citation statements)

References 9 publications

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“…This could lead to the conclusion that the TL effect is minimized or there is no TL effect for high chopper frequency. Several earlier works in literature have alluded to such results [23][24][25][26].…”

Section: Resultsmentioning

confidence: 86%

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Measurement constraints in laser based thermal lens experiments

Goswami

Kumar

2015

SPIE Proceedings

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Importance of various measurement schemes in studying thermal lens (TL) signal for laser based TL experiments is explored. We show that two different measurement schemes can result in two contrasting outcomes. In one experiment, two measurement schemes show diverging results for TL signal measurements, which gives a convoluted result and in the other experiment, the two measurement schemes give a converging result.

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Section: Resultsmentioning

confidence: 86%

“…However, several literature studies are available on how the mechanical chopper can also control the thermal lens (TL) signal [21,22]. In fact, there are claims that at high chopper frequency, TL signal can also be removed [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Measurement constraints in laser based thermal lens experiments

Goswami

Kumar

2015

SPIE Proceedings

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“…Since it is desirable to build very small heat flux sensors there are also approaches available on the basis of microelectronics, e.g. see [56][57][58].…”

Section: Gardon's Radiometermentioning

confidence: 99%

Calorimetric Probes for Energy Flux Measurements in Process Plasmas

2014

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This chapter gives an overview of the method of calorimetric probes which are used for characterizing the interaction between low-temperature plasmas and substrates in materials processing. Although the focus is on low-temperature nonequilibrium plasmas most of the concepts can also be transferred to thermal plasmas or are in fact adopted from fusion research. An introductory section showing the importance and complexity of plasma wall interactions is followed by a section providing an overview and comparison of various probe concepts, which have been developed in the last decades. Special focus is on the type of probes which are similar to the probes used by J.A. Thornton (In fact, Thornton was not the first, to use this type of probe. From his work from 1978 [1], one can follow the citations back to the work of Jackson in 1969, who used equation (6.7) for the determination of the power dissipated by a copper block located at substrate position in a sputtering discharge [2]) who was one of the pioneers connecting plasma characteristics with resulting surface properties. Thereafter, a short section gives a basic overview of the different contributions to the total energy influx and which are of importance for the plasma wall interaction. The last section shows different examples of applications of calorimetric probes. It demonstrates the applicability and flexibility of these types of probes for characterization of different low-temperature plasmas. The examples

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“…Common heat flux sensors include thermal resistance heat flux sensor [1], Gadon heat flux density meter [2], plug-in heat flux sensor [3], etc. However, due to their own properties, they cannot meet the requirements of accurate measurement of heat flux in the transient heat flux environment, so the thin films heat flux sensor (THFS) came into being.…”

Section: Introductionmentioning

confidence: 99%

A transient heat flux sensor for PbTe thin films based on transverse Seebeck effect

Liu,

Zhao,

Liu

2023

Meas. Sci. Technol.

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Among thermoelectric materials with thermoelectric effect, lead telluride (PbTe) is widely used because of its high performance and chemical stability in the medium temperature region. In this study, PbTe was creatively employed to develop a transient thin films heat flux sensor (THFS) using magnetron sputtering technique based on the transverse Seebeck effect. After static and dynamic calibration, the rise time of the THFS is 35 μs and the sensitivity is up to 7.9 μV(kW·m−2)−1, it can be measured in transient high heat flux testing environments without the need for a signal amplifier. In the experiment of measuring transient heat flux with explosion driven shock tube, the THFS has the advantages of high resolution and high dynamic response, which provides scientific basis for the study of explosion thermal damage effect and has important significance.

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An experimental study of a radially arranged thin-film heat-flux gauge

Cited by 19 publications

References 9 publications

Measurement constraints in laser based thermal lens experiments

Measurement constraints in laser based thermal lens experiments

Calorimetric Probes for Energy Flux Measurements in Process Plasmas

A transient heat flux sensor for PbTe thin films based on transverse Seebeck effect

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