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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: J Vib Acoust. 2019;141:10.1115/1.4042929. doi: 10.1115/1.4042929

Table 2.

Effects of silver on graphene-based acoustic sensors

Graphene only
 Graphene+silver
Nominal Uncertaintya Nominal Uncertaintya
Sensor sensitivity, ST0 (mV/Pa) 21.32 0.39 68.41 1.00
Natural frequency, f1 (kHz) 16.18 0.46 20.22 0.71
Damping ratio, ζ 0.73 0.03 0.79 0.03
Mechanical sensitivity (nm/Pa) 1.55 0.03 1.17 0.02
a

Expanded uncertainty using coverage factor k=2.