Development of a capacitive mass measuring system

被引：20

作者：

Abu-Al-Aish, Amir ^{[1
]}

Rehman, Mahfoozur ^{[1
]}

机构：

[1] Univ Sci Malaysia, Sch Elect & Elect Engn, Nibong Tebal 14300, P Pinang, Malaysia

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2009年 / 151卷 / 02期

关键词：

Capacitive mass sensor; Temperature errors; Capacitance measuring system; Spring; TRANSDUCER;

D O I：

10.1016/j.sna.2009.02.023

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

The paper deals with the theory, design, fabrication and test results of a robust, linear and accurate capacitive mass sensor. The change in capacitance, with increased mass, takes place due to the shielding effect of a conducting cylinder which moves in between the stationary concentric co-axial cylinders. A direct capacitance measuring system, developed by the authors. is used in the calibration of the mass sensor. Presented sensor is linear, immune to temperature errors, highly flexible in the design and can cover different weighing ranges by selecting proper springs only. For the spring, used in the system, mass sensor can weigh up to 4 kg. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：113 / 117

页数：5

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