http://www.cnr.it/ontology/cnr/individuo/prodotto/ID22657
CO2 Laser Pulse Monitoring Instrument Based on PVDF Pyroelectric Array (Articolo in rivista)
- Type
- Label
- CO2 Laser Pulse Monitoring Instrument Based on PVDF Pyroelectric Array (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1109/JSEN.2005.844544 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Lorenzo Capineri; Francesco Lenzi; Luigi Masotti; Marina Mazzoni (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- University of Florence, Department of Electronics and Telecommunications, 50139 Florence, Italy.
National Research Council (CNR), IFAC, 50019 Firenze, Italy (literal)
- Titolo
- CO2 Laser Pulse Monitoring Instrument Based on PVDF Pyroelectric Array (literal)
- Abstract
- This paper proposes to extend the use of low-cost,
pyroelectric, polyvinylidene fluoride four-quadrant arrays, originally
devoted to monitoring the beam point stability of CO2 laser
beams, to the temporal profiling of the same laser pulse providing
an instrument that is not commercially available. The advantage
of using a single sensor for both types of measurements can be
fully exploited if the pyroelectric sensor bandwidth is made almost
flat in the typical frequency range (10 Hz-20 kHz) of the signal
spectrum generated by a modulated CO2 laser. In this paper, we
present the design of an active analog compensation filter aimed
to improve the reconstruction accuracy of the laser pulses and
its circuit implementation with a quad operational amplifier for
an easy integration of the compensation filter on the same board
hosting the sensor. Experimental results obtained with modulated
CO2 laser beams, at pulse repetition rates from 10 to 1000 Hz and
variable duty cycle, proved accurate in the laser pulse reconstruction
with sensitivity of commercial semiconductor HgCdZnTe
sensors. (literal)
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