Force Sensor and its Application to Tuning Fork Response Measurement

Abstract:

Generally, force measurement of nanoscale material widely employs a quartz tuning fork which is resonant mechanical sensors on 32.768 kHz resonance frequency and is powerful tools. But, this paper designs the sensor by using tuning fork on 3 kHz and modifies the tuning fork by a tiny pin adhesive into the end of prong. In experiment, measurements of electrical signal from piezoelectric are study of load-mass effect and pin position. 2 touching techniques are considered: a shear-force type and a tapping mode type with highly position movement system. Silicone rubber, vinyl eraser and hydrogel are elastic material for testing. Results show that both weight and position of pin is significant influencer for resonance frequency and quality factor of sensor. Finally, the tuning fork response experimentation shown this method can be applied to material classification.

• Periodical: Advanced Materials Research (Volume 804)
• Pages: 222-227
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.804.222
• Online since: September 2013
• Authors: Suwilai Areejit, Anurak Jansri, Pitikhate Sooraksa
• Keywords: Force Sensor, Piezoelectric, Quality Factor, Tuning Fork

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