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Open AccessFeature PaperArticle

A High-Precision Gated Integrator for Repetitive Pulsed Signals Acquisition

1
Engineering Department, Università degli Studi Niccolò Cusano, via don Carlo Gnocchi 3, 00166 Rome, Italy
2
Istituto di Struttura della Materia (ISM), Consiglio Nazionale delle Ricerche (CNR), Sede Secondaria di Montelibretti, via Salaria km 29.300, 00015 Monterotondo Stazione, Roma, Italy
3
Engineering Department, Università degli Studi Roma Tre, via Vito Volterra 62, 00146 Rome, Italy
*
Author to whom correspondence should be addressed.
Electronics 2019, 8(11), 1231; https://doi.org/10.3390/electronics8111231
Received: 30 September 2019 / Revised: 23 October 2019 / Accepted: 25 October 2019 / Published: 28 October 2019
(This article belongs to the Section Circuit and Signal Processing)
Gated integrating measurement method represents a widely used approach when fast, repetitive analogue signals are concerned. In this work a compact synchronized gated-integrator prototype has been realized and preliminary characterized. Front-end electronics is based on the mature high-precision switched-integrator transimpedance-amplifier IVC102 whose output is connected to a precision LT1911 inverting amplifier, whereas analogue-to-digital conversion, as well as timing control circuitry, are performed by a high-efficiency LPC845 microcontroller. Synchronizing signal detection with the external trigger generated in coincidence with a source, the proposed circuitry amplifies and integrates the signal only when the pulse is generated, displaying excellent performances in terms of linearity, sensitivity and signal-to-noise ratio. Hence, the proposed solution represents an affordable alternative to continuous-time regime measurement-techniques, usually adopted in radiation dosimetry where accuracy and sensitivity are strict requirements for treatment quality assurance. View Full-Text
Keywords: gated integrator; pulsed signal; synchronized integration; state configurable timer; radiation dosimetry gated integrator; pulsed signal; synchronized integration; state configurable timer; radiation dosimetry
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MDPI and ACS Style

Pettinato, S.; Orsini, A.; Girolami, M.; Trucchi, D.M.; Rossi, M.C.; Salvatori, S. A High-Precision Gated Integrator for Repetitive Pulsed Signals Acquisition. Electronics 2019, 8, 1231.

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