A novel wind sensor concept based on thermal image measurement using a temperature sensor array
This paper presents a novel concept of designing wind sensors without moving parts. The measurement concept is based on the evaluation of the thermal image around a circular heater. Forced convection, caused by the wind, modulates this thermal image, which reveals information about both flow velocit...
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2014
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| Online Access: | https://hdl.handle.net/10356/106155 http://hdl.handle.net/10220/23919 http://dx.doi.org/10.1016/j.sna.2003.10.041 |
| _version_ | 1826118283853561856 |
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| author | Nguyen, Nam-Trung |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Nguyen, Nam-Trung |
| author_sort | Nguyen, Nam-Trung |
| collection | NTU |
| description | This paper presents a novel concept of designing wind sensors without moving parts. The measurement concept is based on the evaluation of the thermal image around a circular heater. Forced convection, caused by the wind, modulates this thermal image, which reveals information about both flow velocity and flow direction. The new concept uses an array of temperature sensors to capture the thermal image. Temperature data are transferred to a computer or a micro controller by a multiplexer. A program running on the computer extracts the values of speed and direction from the thermal image. The paper discusses different evaluation algorithms and compares their results. Three-point-estimators such as Gaussian estimator, peak centroid estimator, and parabolic estimator are used to improve the resolution of the direction measurement. The result of velocity measurement is also presented. |
| first_indexed | 2024-10-01T04:41:11Z |
| format | Journal Article |
| id | ntu-10356/106155 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:41:11Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1061552019-12-06T22:05:32Z A novel wind sensor concept based on thermal image measurement using a temperature sensor array Nguyen, Nam-Trung School of Mechanical and Aerospace Engineering DRNTU::Engineering::Aeronautical engineering::Materials of construction This paper presents a novel concept of designing wind sensors without moving parts. The measurement concept is based on the evaluation of the thermal image around a circular heater. Forced convection, caused by the wind, modulates this thermal image, which reveals information about both flow velocity and flow direction. The new concept uses an array of temperature sensors to capture the thermal image. Temperature data are transferred to a computer or a micro controller by a multiplexer. A program running on the computer extracts the values of speed and direction from the thermal image. The paper discusses different evaluation algorithms and compares their results. Three-point-estimators such as Gaussian estimator, peak centroid estimator, and parabolic estimator are used to improve the resolution of the direction measurement. The result of velocity measurement is also presented. 2014-09-30T08:11:08Z 2019-12-06T22:05:32Z 2014-09-30T08:11:08Z 2019-12-06T22:05:32Z 2003 2003 Journal Article Nguyen, N. T. (2004). A novel wind sensor concept based on thermal image measurement using a temperature sensor array. Sensors and actuators A: physical, 110(1-3), 323-327. 0924-4247 https://hdl.handle.net/10356/106155 http://hdl.handle.net/10220/23919 http://dx.doi.org/10.1016/j.sna.2003.10.041 86949 en Sensors and Actuators A: physical © 2003 Elsevier B.V. 4 p. |
| spellingShingle | DRNTU::Engineering::Aeronautical engineering::Materials of construction Nguyen, Nam-Trung A novel wind sensor concept based on thermal image measurement using a temperature sensor array |
| title | A novel wind sensor concept based on thermal image measurement using a temperature sensor array |
| title_full | A novel wind sensor concept based on thermal image measurement using a temperature sensor array |
| title_fullStr | A novel wind sensor concept based on thermal image measurement using a temperature sensor array |
| title_full_unstemmed | A novel wind sensor concept based on thermal image measurement using a temperature sensor array |
| title_short | A novel wind sensor concept based on thermal image measurement using a temperature sensor array |
| title_sort | novel wind sensor concept based on thermal image measurement using a temperature sensor array |
| topic | DRNTU::Engineering::Aeronautical engineering::Materials of construction |
| url | https://hdl.handle.net/10356/106155 http://hdl.handle.net/10220/23919 http://dx.doi.org/10.1016/j.sna.2003.10.041 |
| work_keys_str_mv | AT nguyennamtrung anovelwindsensorconceptbasedonthermalimagemeasurementusingatemperaturesensorarray AT nguyennamtrung novelwindsensorconceptbasedonthermalimagemeasurementusingatemperaturesensorarray |