Research Article

Force Sensing Resistor and Evaluation of Technology for Wearable Body Pressure Sensing

Table 1

Comparison table for works using Velostat for sensing purposes.

Reference YearMatrix/single Conditioning circuit Usage Resolution

This work 2016Single point (15 × 30 mm) Transimpedance amplifier Pressure measurement (0–2.7 kPa) <450 Pa with precompression of 900 Pa

[44] 2015 Matrix 2 × 8 sensel (7 × 14.5 cm each) Bias resistor Posture recognition, range 0–4 kg (0–3.9 kPa) <250 gr (241 Pa) with no precompression

[31] 2001 Matrix 8 × 8 sensel (5 × 5 mm each) Bias resistor Pressure measurement (0–500 kPa) <0.2 N (2 kPa) with no precompression

[39] 2012 Single point (15 × 15 mm) Bias resistor Force measurement (0–5 N) 0.1 N (440 Pa) with no precompression

[61] 2015 Single point (10 × 10 mm) NA Pressure measurement (0–1000 kPa) <1 kg (98 kPa) with no precompression

[62] 2011 Matrix 64 sensel (10 × 10 mm each) NA Pressure measurement map 7 grams (686 Pa) with no precompression

[63] 2014 Matrix 160 × 160 cm (48 × 48 sensel) NA Gesture recognition NA

[64] 2011 Single point Bias resistor Event (impact) detection NA

[65] 2016 Matrix 3 × 3 sensel (110 × 110 mm each) Bias resistor Posture analysis NA

[66] 2014 Single point (1 cm2) NA Pressure measurement (0–250 kPa) NA

[46] 2011 Matrix Bias resistor Gesture recognition NA

[67] 2015 Two single point sensors Bias resistor Compressive and stretching forces NA

[56] 2014 Matrix 4 × 4 sensel Bias resistor Force measurement (4–60 N) NA