@inproceedings{c378b6851f35475698360ad84ba5c55f,
title = "Low-frequency amplifiers for PVDF film sensors",
abstract = "This paper proposes instrumentation amplifiers for use with large area Polyvinylidine Diflouride (PVDF) sensors designed to detect rodent motion. The sensor behaves as a pressure-to-voltage converter in series with a parasitic capacitance. Motion signals critical for classifying rodent behavior range from 0.5 Hz to 20 Hz. Amplification on the order of 20dB is required for the pass-band before digitization. Amplifier A is presently used in an experimental system. This amplifier has slow response time with noticeable drift. Amplifier B is designed to overcome these obstacles. It is more complex but reduces the drift and noise floor, while decreasing the response time. Performance is evaluated with metrics based on low-frequency drift and noise-floor power computed over a 19-hour period and with recovery time from saturation. The comparison shows amplifier B with a faster response and lower drift than amplifier A.",
author = "Williams, {David G.} and Donohue, {Kevin D.} and O'Hara, {Bruce F.}",
year = "2008",
doi = "10.1109/SECON.2008.4494259",
language = "English",
isbn = "9781424418848",
series = "Conference Proceedings - IEEE SOUTHEASTCON",
pages = "75--79",
booktitle = "IEEE SoutheastCon 2008",
note = "null ; Conference date: 03-04-2008 Through 06-04-2008",
}