| Download | - View accepted manuscript: Frequency analysis of temperature-dependent interferometric signal for the measurement of the temperature coefficient of refractive index (PDF, 788 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1063/1.4958820 |
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| Author | Search for: Zhou, Jianqin1; Search for: Shen, Jun1; Search for: Neill, W. Stuart1 |
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| Affiliation | - National Research Council of Canada. Energy, Mining and Environment
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| Format | Text, Article |
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| Subject | temperature coefficient of refractive index; peak analysis; frequency analysis; noise reduction |
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| Abstract | A method of frequency analysis for the measurement of the temperature coefficient of refractive index (dn/dT) using a Fabry–Perot interferometer was developed and tested against ethanol and water. The temperature-dependent interferometric signal described by Airy’s formula was analyzed in both the temperature and frequency domains. By fast Fourier transform, a low-pass filter was designed and employed to eliminate the noise superimposed on the signal. dn/dT was determined accurately from the noise-removed signal by peak analysis. Furthermore, the signal frequency parameters may be utilized for the material thermophysical property characterization. This method lays the foundation for an online dn/dT instrument for monitoring chemical processes. |
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| Publication date | 2016-07-19 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRC-EME_55777 |
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| NPARC number | 23001053 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | c0eb6f16-89d8-4e81-b014-0c8387a943e1 |
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| Record created | 2016-12-06 |
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| Record modified | 2020-06-04 |
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