Effect of Wind-Induced Vibration on Measurement Range of Microcantilever Anemometer

In this paper, the effect of wind-induced vibration on measurement range of microcantilever anemometer is investigated for the first time. The microcantilever anemometer is composed of a flexible substrate and a piezoresistor. The wind speed can be detected through the airflow-induced deformation in...

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Main Authors: Yizhou Ye, Shu Wan, Xuefeng He
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/13/5/720
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author Yizhou Ye
Shu Wan
Xuefeng He
author_facet Yizhou Ye
Shu Wan
Xuefeng He
author_sort Yizhou Ye
collection DOAJ
description In this paper, the effect of wind-induced vibration on measurement range of microcantilever anemometer is investigated for the first time. The microcantilever anemometer is composed of a flexible substrate and a piezoresistor. The wind speed can be detected through the airflow-induced deformation in the flexible substrate. Previous work indicated that the flexible substrate vibrates violently once the wind speed exceeds a critical value, resulting in severe output jitter. This wind-induced vibration limits the measurement range of the anemometer, and the relationship between the anemometer measurement range and its structural parameters has not been explored systematically. Therefore, this paper aims to reveal this relationship theoretically and experimentally, demonstrating that a shorter and thicker cantilever with larger stiffness can effectively suppress the wind-induced vibration, leading to the critical speed rising. By eliminating the wind-induced vibration, the measurement range of the microcantilever anemometer can be increased by up to 697%. These results presented in this paper can pave the way for the design and fabrication of wide-range mechanical anemometers.
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spelling doaj.art-5231135677be40d5b821bedcb1a3ef622023-11-23T12:12:08ZengMDPI AGMicromachines2072-666X2022-04-0113572010.3390/mi13050720Effect of Wind-Induced Vibration on Measurement Range of Microcantilever AnemometerYizhou Ye0Shu Wan1Xuefeng He2Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University, Chongqing 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University, Chongqing 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University, Chongqing 400044, ChinaIn this paper, the effect of wind-induced vibration on measurement range of microcantilever anemometer is investigated for the first time. The microcantilever anemometer is composed of a flexible substrate and a piezoresistor. The wind speed can be detected through the airflow-induced deformation in the flexible substrate. Previous work indicated that the flexible substrate vibrates violently once the wind speed exceeds a critical value, resulting in severe output jitter. This wind-induced vibration limits the measurement range of the anemometer, and the relationship between the anemometer measurement range and its structural parameters has not been explored systematically. Therefore, this paper aims to reveal this relationship theoretically and experimentally, demonstrating that a shorter and thicker cantilever with larger stiffness can effectively suppress the wind-induced vibration, leading to the critical speed rising. By eliminating the wind-induced vibration, the measurement range of the microcantilever anemometer can be increased by up to 697%. These results presented in this paper can pave the way for the design and fabrication of wide-range mechanical anemometers.https://www.mdpi.com/2072-666X/13/5/720anemometerflow sensorwind-induced vibrationmicrocantilever
spellingShingle Yizhou Ye
Shu Wan
Xuefeng He
Effect of Wind-Induced Vibration on Measurement Range of Microcantilever Anemometer
Micromachines
anemometer
flow sensor
wind-induced vibration
microcantilever
title Effect of Wind-Induced Vibration on Measurement Range of Microcantilever Anemometer
title_full Effect of Wind-Induced Vibration on Measurement Range of Microcantilever Anemometer
title_fullStr Effect of Wind-Induced Vibration on Measurement Range of Microcantilever Anemometer
title_full_unstemmed Effect of Wind-Induced Vibration on Measurement Range of Microcantilever Anemometer
title_short Effect of Wind-Induced Vibration on Measurement Range of Microcantilever Anemometer
title_sort effect of wind induced vibration on measurement range of microcantilever anemometer
topic anemometer
flow sensor
wind-induced vibration
microcantilever
url https://www.mdpi.com/2072-666X/13/5/720
work_keys_str_mv AT yizhouye effectofwindinducedvibrationonmeasurementrangeofmicrocantileveranemometer
AT shuwan effectofwindinducedvibrationonmeasurementrangeofmicrocantileveranemometer
AT xuefenghe effectofwindinducedvibrationonmeasurementrangeofmicrocantileveranemometer