Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement
This paper presents a new wind speed measurement method using a single capacitive micro-machined ultrasonic transducer (CMUT). The CMUT was arranged perpendicular to the direction of the wind flow, and a reflector was set up a short distance away, facing the CMUT. To reduce the size, weight, cost, a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-06-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/6/814 |
| _version_ | 1828372670537793536 |
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| author | Gia Thinh Bui Yu-Tsung Jiang Da-Chen Pang |
| author_facet | Gia Thinh Bui Yu-Tsung Jiang Da-Chen Pang |
| author_sort | Gia Thinh Bui |
| collection | DOAJ |
| description | This paper presents a new wind speed measurement method using a single capacitive micro-machined ultrasonic transducer (CMUT). The CMUT was arranged perpendicular to the direction of the wind flow, and a reflector was set up a short distance away, facing the CMUT. To reduce the size, weight, cost, and power consumption of conventional ultrasonic anemometers this study proposes two CMUT designs for the measurement of wind speed using either the amplitude of the signal or the time of flight (TOF). Each CMUT with a double array element design can transmit and receive signals in five different operation modes. Experiments showed that the two CMUT designs utilizing the TOF were better than those utilizing the amplitude of the signal for wind speed measurements ranging from 1 m/s to 10 m/s, providing a measurement error of less than 0.2 m/s. These results indicate that the sensitivity of the TOF is independent of the five operation modes. |
| first_indexed | 2024-04-14T07:07:17Z |
| format | Article |
| id | doaj.art-9256d7c80b9d48d4b63a58a53504ac72 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T07:07:17Z |
| publishDate | 2016-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-9256d7c80b9d48d4b63a58a53504ac722022-12-22T02:06:32ZengMDPI AGSensors1424-82202016-06-0116681410.3390/s16060814s16060814Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed MeasurementGia Thinh Bui0Yu-Tsung Jiang1Da-Chen Pang2Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, 415 Jiangong Road, Sanmin District, Kaohsiung 807, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Applied Sciences, 415 Jiangong Road, Sanmin District, Kaohsiung 807, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Applied Sciences, 415 Jiangong Road, Sanmin District, Kaohsiung 807, TaiwanThis paper presents a new wind speed measurement method using a single capacitive micro-machined ultrasonic transducer (CMUT). The CMUT was arranged perpendicular to the direction of the wind flow, and a reflector was set up a short distance away, facing the CMUT. To reduce the size, weight, cost, and power consumption of conventional ultrasonic anemometers this study proposes two CMUT designs for the measurement of wind speed using either the amplitude of the signal or the time of flight (TOF). Each CMUT with a double array element design can transmit and receive signals in five different operation modes. Experiments showed that the two CMUT designs utilizing the TOF were better than those utilizing the amplitude of the signal for wind speed measurements ranging from 1 m/s to 10 m/s, providing a measurement error of less than 0.2 m/s. These results indicate that the sensitivity of the TOF is independent of the five operation modes.http://www.mdpi.com/1424-8220/16/6/814capacitive micro-machined ultrasonic transducer (CMUT)wind speed measurementamplitudetime-of-flight |
| spellingShingle | Gia Thinh Bui Yu-Tsung Jiang Da-Chen Pang Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement Sensors capacitive micro-machined ultrasonic transducer (CMUT) wind speed measurement amplitude time-of-flight |
| title | Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement |
| title_full | Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement |
| title_fullStr | Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement |
| title_full_unstemmed | Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement |
| title_short | Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement |
| title_sort | two capacitive micro machined ultrasonic transducers for wind speed measurement |
| topic | capacitive micro-machined ultrasonic transducer (CMUT) wind speed measurement amplitude time-of-flight |
| url | http://www.mdpi.com/1424-8220/16/6/814 |
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