An Ice Percentage Sensor Using Piezoelectric Technology
Ice percentage is one of the most important parameters for studying icing process,however,only few ice percentage sensors have been applied and most of them turn out to be inaccurate and thus unreliable.This paper introduces a novel sensor which is capable of measuring ice,water as well as ice percentage.The sensor is based on stiffness measurement principle and consists of constant elasticity alloy plate and a three-electrodes piezoceramic disc.Inverse piezoelectric effect drives the plate to vibrate and the sensor detects ice and water through the shifting of resonance frequency.On the basis of water and ice measurement abilities,this paper proposes a new method to calculate ice percentage,the calculation could be done by dividing the frequency shifting values.During the research,calibration experiments for water and ice measurement were carried out and the results matched well with the simulated curves.Then,experiments for ice percentage measurement were conducted.Based on stiffness measurement principle,this method to calculate ice percentage can hardly be effected by salinity and load thickness.In a word,this kind of ice sensor could be more reliable than the existed ones in the aspect of ice percentage measurement.
Ice percentage sensor stiffness measurement resonant frequency
GUI Kang YE Lin GE Junfeng HUANG Lizhen YANG Bian
Huazhong University of Science and Technology Norwegian University of Science and Technology
国际会议
重庆
英文
1-4
2017-09-25（万方平台首次上网日期，不代表论文的发表时间）