An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform
The dew point is the temperature at which vapour begins to condense out of the gaseous phase. The deterministic relationship between the dew point and humidity is the basis for the industry-standard “chilled-mirror” dew point hygrometers used for highly accurate humidity measurements, which are esse...
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sg-ntu-dr.10356-818352022-02-16T16:26:42Z An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform Tao, Jifang Luo, Yu Wang, Li Cai, H. Sun, Tao Song, Junfeng Liu, Hui Gu, Yuandong School of Electrical and Electronic Engineering Micro-optics Nanophotonics and plasmonics The dew point is the temperature at which vapour begins to condense out of the gaseous phase. The deterministic relationship between the dew point and humidity is the basis for the industry-standard “chilled-mirror” dew point hygrometers used for highly accurate humidity measurements, which are essential for a broad range of industrial and metrological applications. However, these instruments have several limitations, such as high cost, large size and slow response. In this report, we demonstrate a compact, integrated photonic dew point sensor (DPS) that features high accuracy, a small footprint, and fast response. The fundamental component of this DPS is a partially exposed photonic micro-ring resonator, which serves two functions simultaneously: 1) sensing the condensed water droplets via evanescent fields and 2) functioning as a highly accurate, in situ temperature sensor based on the thermo-optic effect (TOE). This device virtually eliminates most of the temperature-related errors that affect conventional “chilled-mirror” hygrometers. Moreover, this DPS outperforms conventional “chilled-mirror” hygrometers with respect to size, cost and response time, paving the way for on-chip dew point detection and extension to applications for which the conventional technology is unsuitable because of size, cost, and other constraints. NRF (Natl Research Foundation, S’pore) Published version 2016-07-27T07:25:05Z 2019-12-06T14:41:12Z 2016-07-27T07:25:05Z 2019-12-06T14:41:12Z 2016 2016 Journal Article Tao, J., Luo, Y., Wang, L., Cai, H., Sun, T., Song, J., et al. (2016). An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform. Scientific Reports, 6, 29672-. 2045-2322 https://hdl.handle.net/10356/81835 http://hdl.handle.net/10220/41004 10.1038/srep29672 27417734 195038 en Scientific Reports © 2016 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ 7 p. application/pdf |
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Micro-optics Nanophotonics and plasmonics Tao, Jifang Luo, Yu Wang, Li Cai, H. Sun, Tao Song, Junfeng Liu, Hui Gu, Yuandong An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform |
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The dew point is the temperature at which vapour begins to condense out of the gaseous phase. The deterministic relationship between the dew point and humidity is the basis for the industry-standard “chilled-mirror” dew point hygrometers used for highly accurate humidity measurements, which are essential for a broad range of industrial and metrological applications. However, these instruments have several limitations, such as high cost, large size and slow response. In this report, we demonstrate a compact, integrated photonic dew point sensor (DPS) that features high accuracy, a small footprint, and fast response. The fundamental component of this DPS is a partially exposed photonic micro-ring resonator, which serves two functions simultaneously: 1) sensing the condensed water droplets via evanescent fields and 2) functioning as a highly accurate, in situ temperature sensor based on the thermo-optic effect (TOE). This device virtually eliminates most of the temperature-related errors that affect conventional “chilled-mirror” hygrometers. Moreover, this DPS outperforms conventional “chilled-mirror” hygrometers with respect to size, cost and response time, paving the way for on-chip dew point detection and extension to applications for which the conventional technology is unsuitable because of size, cost, and other constraints. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Tao, Jifang Luo, Yu Wang, Li Cai, H. Sun, Tao Song, Junfeng Liu, Hui Gu, Yuandong |
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Article |
author |
Tao, Jifang Luo, Yu Wang, Li Cai, H. Sun, Tao Song, Junfeng Liu, Hui Gu, Yuandong |
author_sort |
Tao, Jifang |
title |
An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform |
title_short |
An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform |
title_full |
An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform |
title_fullStr |
An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform |
title_full_unstemmed |
An ultrahigh-accuracy Miniature Dew Point Sensor based on an Integrated Photonics Platform |
title_sort |
ultrahigh-accuracy miniature dew point sensor based on an integrated photonics platform |
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2016 |
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https://hdl.handle.net/10356/81835 http://hdl.handle.net/10220/41004 |
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1725985716835450880 |