The PolySense team has just published a new article on Sensors MPDI journal (IF 3.5) reporting on the development of compact electronic modules for a QEPAS sensor. A very low-noise, fully differential preamplifier for the quartz tuning fork, with digital output and programmable gain, has been designed and realized. A compact FPGA board hosts both Leggi di piùNew Publication on Sensors Journal[…]
Polysense is proud to announce that, for the sixth consecutive year, our team members have been recognized among the Top 2% of Scientists in the world, according to the prestigious ranking by Stanford University. This year, six of our researchers achieved this remarkable distinction! Vincenzo Spagnolo is featured in the Full Career Top 2% Scientists Leggi di piùSix Polysense Team members listed in the 2024 Top 2% Scientists in the world by Stanford University[…]
The PolySense team has just published a new article on Advanced Materials Technologies Journal (IF 6.2) reporting on the development and experimental validation of a full-domain 3D digital twin for a SSAW device based on 128° YX LiNbO3 ,commonly used for acoustofluidic applications. The model is developed in COMSOL Multiphysics to accurately capture the electromechanical Leggi di piùNew Publication on Advanced Materials Technologies Journal[…]
The PolySense team has just published a new article on Sensors and Actuators B Chemical Journal Elsevier (IF 7.7) reporting on a study on the H2 spectral properties and a comparison between two different piezoelectric resonators employed as infrared detectors for hydrogen sensing are reported. A quartz tuning fork (QTF) and a lithium niobate tuning Leggi di piùNew Publication on Sensors and Actuators B Chemical Journal[…]
The PolySense team has just published a new article on Optics & Laser Technology journal (IF 5.0) reporting on a Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS)-based sensor for sequentially measuring carbon monoxide (CO), nitrous oxide (N2O), and water vapor emissions near vehicle exhaust pipes. With detection limits of 150 ppb for N2O and 91 ppb for CO, this sensor Leggi di piùNew Publication on Optics & Laser Technology Journal[…]
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 6.8) reporting on a novel approach for gas concentration measurement using a differential resonant photoacoustic cellcombined with a deep learning-based signal denoising model. This method addresses the persistent challenge of noise interference in 2 f signals at low gas concentrations, where Leggi di piùNew Publication on Photoacoustics Journal[…]
The PolySense team has just published a new article on Molecules Journal MPDI (IF 4.6) reporting a study aimed at defining the infrared spectral signatures of volatile organic compounds (VOCs) of relevant interest for coffee bean authentication and quality control. Fourier Transform Infrared Spectroscopy was employed to acquire the mid-infrared absorption spectra of some representative Leggi di piùNew Publication on Molecules Journal[…]
The PolySense team has just published a new article on Sensors Journal MPDI (IF 3.5) reporting on an ultra-compact optical gas-sensing system, consisting of a pigtailed laser diode emitting at 1392.5 nm for water vapor (H2O) detection, a silicon nitride (Si3N4) optical waveguide to guide the laser light, and a custom-designed, low-frequency, and T-shaped Quartz Leggi di piùNew Publication on Sensors Journal[…]
The PolySense team has just published a new article on Light: Advanced Manufacturing Journal reporting on the development of a laser surface functionalization process to enhance the optical absorption of quartz crystals, named hereafter Black Quartz, in the 1-5 µm spectral range. Black Quartz consists of surface modification of quartz crystal by ultra-fast-pulsed-laser-processing to create Leggi di piùNew Publication on Light: Advanced Manufacturing[…]
The PolySense team has just published a new review article on Measurement Journal Elsevier (IF 5.2) on a formaldehyde gas detection using optical sensing. In this review, the laser-based spectroscopic techniques for formaldehyde detection were investigated, such as cavity ring-down spectroscopy (CRDS), cavity-enhanced absorption spectroscopy (CEAS), integrated cavity output spectroscopy (ICOS), tunable diode laser absorption Leggi di piùNew Publication on Measurement Journal[…]