Title :
A Three-Axis Finger Force Sensor Using Single-layer and Disc-Shaped Sensitive Plate
Author_Institution :
Inst. of Intell. Machines, Chinese Acad. of Sci., Hefei, China
Abstract :
In this paper, a three-axis finger force sensor with force-sensing part in the form of a thin disc-shaped alloy plate is presented. Different from the traditional and bulky sensitive element composed of plate-beam, cross-beam, and shaped bar, etc, the compacted disk-shaped sensitive elastomer can miniaturize the sensitive element to a great extent and the fabricated pint-sized force sensor has a wide force-sensing range. Therefore, one feature of this novel sensitive element is that twelve pieces of strain gauges are concentrated on one bottom plane of a 22-mm-diameter and 2.0mm thick disk-shaped plate. The other is that its minimum measurement of strain is 0.2 and 1 m/m responding to 0.2N and the maximum measurement of strain is 500 m/m responding to 100N. The maximum interference error is 2.02%.
Keywords :
alloys; elastomers; force sensors; manipulator dynamics; strain gauges; tactile sensors; alloy plate; bottom plane; compacted disk-shaped sensitive elastomer; disc-shaped sensitive plate; force-sensing range; maximum interference error; pint-sized force sensor; size 2.0 mm; size 22 mm; strain gauges; three-axis finger force sensor; Capacitive sensors; Fingers; Force measurement; Force sensors; Interference; Piezoresistance; Sensor phenomena and characterization; Size measurement; Strain measurement; Tactile sensors; force sensor; piezoresistance; strain gauge; three-axis;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2010 International Conference on
Conference_Location :
Changsha City
Print_ISBN :
978-1-4244-5001-5
Electronic_ISBN :
978-1-4244-5739-7
DOI :
10.1109/ICMTMA.2010.724
