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http://dx.doi.org/10.3795/KSME-A.2002.26.12.2590

Output Characteristics and Sensitivity Analysis of Capacitive Type Torque Sensor  

Lee, Shin-Pyo (경기대학교 기계공학과)
Kim, Jong-Bo (경기대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.26, no.12, 2002 , pp. 2590-2597 More about this Journal
Abstract
A new torque measuring apparatus adopting the basic principle of a capacitive type sensor is proposed in this article. Two plate electrodes are working as a capacitive sensor, whose capacitance varies as torque is applied. One end of each plate is connected to the torque carrying shaft. Output characteristics of the torque sensor were theoretically analyzed and its validity was investigated through experiment. Calculations and calibration experiments show that the output is nonlinear, that is, the sensitivity is very high at low torque but decreases as torque increases. The sensitivity of the proposed system is about 100 times roughly higher than that of a conventional 4-strain gauge type torque sensor.
Keywords
Capacitive Type Sensor; Torque Sensor; Strain Gauge; Sensitivity; Output Characteristic;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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