Bibliographic citations
Pratt, H., (2023). Diseño e implementación de un acondicionador de señales para acelerómetros piezoeléctricos con circuito electrónico integrado (IEPE) [Pontificia Universidad Católica del Perú]. http://hdl.handle.net/20.500.12404/25426
Pratt, H., Diseño e implementación de un acondicionador de señales para acelerómetros piezoeléctricos con circuito electrónico integrado (IEPE) []. PE: Pontificia Universidad Católica del Perú; 2023. http://hdl.handle.net/20.500.12404/25426
@mastersthesis{sunedu/3488984,
title = "Diseño e implementación de un acondicionador de señales para acelerómetros piezoeléctricos con circuito electrónico integrado (IEPE)",
author = "Pratt Linares, Hugo Carlos Eduardo",
publisher = "Pontificia Universidad Católica del Perú",
year = "2023"
}
This thesis has as a target the design and implementation of a signal conditioner for piezoelectric transducers with integrated electronics (IEPE), mainly for accelerometers. The instrument is battery operated and includes a current source of 4 mA to bias the transducer. Includes also an amplifier, a Butterworth high-pass filter, a cable fault detector and an overload detector. The current source is internally adjustable; the amplifier gain can be either 0 dB or 20 dB, the frequency response of the amplifier ±0.5 dB is 0.05 Hz to 50 kHz with a phase deviation from 0° ± 5° at the high and low end of the response. The instrument includes a second order high-pass filter with a cut-off frequency of 22.5 Hz that can be activated by the user. The total harmonic distortion (THD) of the conditioner is less than 0.014% in the range of 10 Hz to 20 kHz. The signal-to-noise ratio is greater than 100 dB in the range of 10 Hz to 20.2 kHz and greater than 95 dB in the range of 4 Hz to 10 Hz, both cases were measured with a signal of 1 Vrms . Chapter 1 presents a typical measurement setup that uses a signal conditioner for mechanical vibrations analysis. Relevant characteristics of accelerometers and commercial signal conditioners are included, which served as a reference for the specifications of the system. Chapter 2 presents the system design and chapter 3 the tests carried out and the results.
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