This work presents a front-end circuit aimed at enhancing the performance of counter-based digital frequency meters for Quartz Crystal Microbalances with Dissipation Monitoring (QCM-D) applications. The proposed electronics converts the QCM-D vanishing sinusoidal transient response into a square wave signal with voltage levels compliant with standard digital I/O ports. The front-end electronics is designed to preserve the QCM-D response oscillation frequency during the analog-to-digital conversion by means of an Automatic Gain Control (AGC) amplifying stage.
Addabbo, T., Fort, A., Landi, E., Moretti, R., Mugnaini, M., Vignoli, V. (2023). A Novel Front-End Circuit for the Digital Conversion of QCM-D Responses for FPGA-Based Frequency Measurements. In Applications in Electronics Pervading Industry, Environment and Society. ApplePies 2022 (pp.65-72). Cham : Springer [10.1007/978-3-031-30333-3_9].
A Novel Front-End Circuit for the Digital Conversion of QCM-D Responses for FPGA-Based Frequency Measurements
Addabbo T.;Fort A.;Landi E.;Moretti R.
;Mugnaini M.;Vignoli V.
2023-01-01
Abstract
This work presents a front-end circuit aimed at enhancing the performance of counter-based digital frequency meters for Quartz Crystal Microbalances with Dissipation Monitoring (QCM-D) applications. The proposed electronics converts the QCM-D vanishing sinusoidal transient response into a square wave signal with voltage levels compliant with standard digital I/O ports. The front-end electronics is designed to preserve the QCM-D response oscillation frequency during the analog-to-digital conversion by means of an Automatic Gain Control (AGC) amplifying stage.
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https://hdl.handle.net/11365/1235675