US Patent Issued to Pendar Technologies on Oct. 6 for "Devices and methods for quartz enhanced photoacoustic spectroscopy" (Massachusetts Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,756,156, issued on Oct. 6, was assigned to Pendar Technologies Inc. (Cambridge, Mass.).

"Devices and methods for quartz enhanced photoacoustic spectroscopy" was invented by Romain Blanchard (Lexington, Mass.) and Daryoosh Vakhshoori (Cambridge, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In quartz-enhanced photoacoustic spectroscopy (QEPAS), an analyte (typically in gas phase) generates a pressure wave in response to incident laser light. A quartz tuning fork (QTF) resonant at the frequency of the pressure wave transduces the pressure wave into an electrical signal. Pulsing the laser briefly reduces the amount of thermal chirp and increases the ...