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Perforated Paper-Based Piezoresistive Force Sensor
(IEEE, 2019) Erdil, Kuter; Ayrac, Tugce; Akcan, O. Gokalp; Gokdel, Y. Daghan
In this work, a paper-based disposable piezoresistive force sensor has been designed, fabricated and tested along with peripheral electronic circuit. Strathmore (R) 400 series Bristol paper is employed as the substrate and it is coated with graphite and silver ink to form a perforated cantilever beam which constitutes the sensor part of the force sensing system. The proposed force sensing system can measure a force ranging to 24 mN with a force resolution of 196 mu N. The implemented sensor has a sensitivity of 8.63 mV/mN.
A Read-Out System for Disposable Paper-Based Sensors
(IEEE, 2018) Ayrac, Tugce; Gokdel, Y. Daghan
This study presents design, implementation and test of a read-out system for disposable paper-based sensors. Proposed system basically consists of a Strathmore (R) 300 series Bristol paper-based cantilever with the dimension of lem x 3.5cra and the thickness of roughly 400/art which is covered with a thin piezoresistive layer and a read-out circuitry that is composed of a Wheatstone Bridge circuit and instrumentation amplifier (INA128). Proposed read-out system is simulated, implemented and tested. The sensitivity of the proposed read-out system is measured as 0.25m/V/mu m and Delta V-out and 1.5m Omega/mu m for Delta R-PR.