Analysis and Comparison of Piezoresistive Pressure Transmitters and Piezoelectric Pressure Transmitters used on the Hydraulic System

• Main Authors: Wang Hsiang-Chi, 王祥吉
• Other Authors: 吳孟軍
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/84610213590864842204

碩士 === 國立彰化師範大學 === 機電工程學系 === 101 === Abstract The purpose of this study is the analysis comparison of Piezoelectric pressure transmitters and Piezoresistive pressure transmitters; the transmitters can be applied to measure various parameters, and sometimes they also can be used to measure different types’ transmitters for one kind of the physical quantity. Most general pressure transmitters are individual introduction with study, and less with analysis comparison. In this thesis, to the analysis and the comparison of Piezoelectric and Piezoresistive pressure transmitters, the main subject includes measuring characteristics, measurement principle, pressure range, response, and cost, etc., and in the text, we focus separately on the explanation of pressure measurement principle, the analysis of transmitters’ the composition and type, the characteristics introduction of Piezoresistive transmitters and Piezoelectric transmitters; and then give the analysis of pressure transmitters applied on hydraulic piping. Finally, this study confirms that the Piezoresistive pressure transmitters have the characteristics of higher voltage output, high sensitivity, high overpressure capability, poor measurement characteristic, fast response, low cost, etc. in accordance with the result of concerned analysis and comparison; and Piezoelectric pressure transmitters with the characteristics of Anti-electromagnetic interference, Anti-power dissipation,low pressure range, better measurement characteristic, slow response, and cost slightly higher. Therefore, Piezoelectric pressure transmitters and Piezoresistive pressure transmitters each have their advantages, and suitable separately to different needs in the field.