Towards quantitative small-scale thermal imaging
| Autor: | A. Whittam, Rob Simpson, J L McMillan, Maciej Rokosz |
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| Rok vydání: | 2018 |
| Předmět: |
Length scale
Physics - Instrumentation and Detectors Materials science Scale (ratio) business.industry Applied Mathematics FOS: Physical sciences Uncertainty budget Instrumentation and Detectors (physics.ins-det) 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Temperature measurement 010309 optics 0103 physical sciences Thermal Measurement uncertainty Process control Electrical and Electronic Engineering Aerospace engineering 0210 nano-technology Aerospace business Instrumentation |
| Zdroj: | Measurement. 117:429-434 |
| ISSN: | 0263-2241 |
| DOI: | 10.1016/j.measurement.2017.12.023 |
| Popis: | Quantitative thermal imaging has the potential of reliable temperature measurement across an entire field-of-view. This non-invasive technique has applications in aerospace, manufacturing and process control. However, robust temperature measurement on the sub-millimetre (30 μm) length scale has yet to be demonstrated. Here, the temperature performance and size-of-source (source size) effect of a 3–5 μm thermal imaging system have been assessed. In addition a technique of quantifying thermal imager non-uniformity is described. An uncertainty budget is constructed, which describes a measurement uncertainty of 640 mK ( k = 2 ) for a target with a size of 10 mm. The results of this study provide a foundation for developing the capability for confident quantitative sub-millimetre thermal imaging. |
| Databáze: | OpenAIRE |
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