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.

Pettinato, S., Orsini, A., Girolami, M., Trucchi, D.M., Rossi, M.C., Salvatori, S. (2019). A high-precision gated integrator for repetitive pulsed signals acquisition. ELECTRONICS, 8(11), 1231 [10.3390/electronics8111231].

A high-precision gated integrator for repetitive pulsed signals acquisition

Orsini A.
Investigation
;
Girolami M.
Validation
;
Rossi M. C.
Supervision
;
2019

Abstract

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.
Pettinato, S., Orsini, A., Girolami, M., Trucchi, D.M., Rossi, M.C., Salvatori, S. (2019). A high-precision gated integrator for repetitive pulsed signals acquisition. ELECTRONICS, 8(11), 1231 [10.3390/electronics8111231].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/376385
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