The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 9.94) reporting on the development of a ppb-level mid-IR quartz-enhanced photoacoustic sensor for the highly sensitive detection of dimethyl methyl phosphonate (DMMP) —the sarin simulant. A minimum detection limit of 6 ppb was achieved at an integration time of 300 ms, Leggi di piùNew Publication on Photoacoustics Journal[…]
The PolySense team has just published a new article on Advanced Photonics Research journal reporting on a quartz-enhanced photoacoustic spectroscopy sensor architecture capable ofdetecting eight different air pollutants (CH4,NO2,CO2,N2O, CO, NO, SO2, andNH3) . Each analyte is targeted using the same sensor components (acoustic detection module, quartz-tuning fork, etc.) and a dedicated laser source. Both Leggi di piùNew Publication on Advanced Photonics Research[…]
The PolySense team has just published a new article on Micromachines reporting on a theoretical study of the Signal-to-Noise Ratio trend in a voltage-mode read-out of Quartz Tuning Forks (QTFs), mainly focusing on the effects of (i) the noise contributions of both the QTF-equivalent resistor and the input bias resistor RL of the preamplifier, (ii) Leggi di piùNew Publication on Micromachines[…]
The PolySense team has just published a new article on Optics Letters reporting on a side-excitation light-induced thermoelastic spectroscopy (SE-LITES) technique for trace gas detection. The mechanical stress distribution on the QTF surface was analyzed to identify the optimum thermoelastic excitation approach. A signal-to-noise ratio (SNR) improvement of more than one order of magnitude was Leggi di piùNew Publication on Optics Letters[…]
The PolySense team has just published a new article on Photoacoustics Journal Elsevier (IF 9.94) reporting on the development of a gas sensor based on light-induced thermo-elastic spectroscopy (LITES) capable to detect methane (C1) and ethane (C2) in a wide concentration range, from percent down to part-per-billion (ppb). Minimum detection limits of ∼650 ppb and Leggi di piùNew Publication on Photoacoustics Journal[…]