Results 21 to 30 of about 594,359 (210)
Sensors, 2017 All the preamplifiers dedicated for Quartz Enhanced PhotoAcoustic Spectroscopy (QEPAS) applications that have so far been reported in the literature have been based on operational amplifiers working in transimpedance configurations.
Tomasz Starecki, Piotr Z Wieczorek
exaly +3 more sources
, 2006 A sensor for sensing one or more properties of a vehicle fluid has a tuning fork resonator adapted to contact the fluid. The tuning fork resonator comprises two tines and is operable to oscillate so that the two tines move in opposite phase at a ...
Pinkas, Daniel +12 more
core +5 more sources
Machine fluid sensor and method [PDF]
, 2006 A sensor for sensing one or more properties of a vehicle fluid has a tuning fork resonator adapted to contact the fluid. The tuning fork resonator comprises two tines and is operable to oscillate so that the two tines move in opposite phase at a ...
Pinkas, Daniel +12 more
core +4 more sources
Flow detectors having mechanical oscillators, and use thereof in flow characterization systems [PDF]
, 2003 An improved system (100), resonator flow detector (102) and method for characterizing a fluid sample that includes o injecting a fluid sample into a mobile phase of a flow characterization system (106), and detecting a property of the fluid sample > or ...
Petro, Miroslav +2 more
core +4 more sources
Quartz tuning fork as a probe of surface waves [PDF]
Applied Physics Letters, 2016 Quartz tuning forks are high-quality mechanical oscillators widely used in low temperature physics as viscometers, thermometers and pressure sensors. We demonstrate that a fork placed in liquid helium near the surface of solid helium is very sensitive to the oscillations of the solid-liquid interface.
Todoshchenko, Igor +4 more
openaire +5 more sources
Sensors, 2022 Starting from Quartz-Enhanced Photo-Acoustic Spectroscopy (QEPAS), we have explored the potential of a tightly linked method of gas/vapor sensing, from now on referred to as Tuning-Fork-Enhanced Photo-Acoustic Spectroscopy (TFEPAS). TFEPAS utilizes a non-
Roberto Viola +2 more
doaj +1 more source
Highly Sensitive Trace Gas Detection Based on In-Plane Single-Quartz-Enhanced Dual Spectroscopy
Sensors, 2022 For this invited manuscript, an in-plane single-quartz-enhanced dual spectroscopy (IP-SQEDS)-based trace gas sensor was demonstrated for the first time.
Tiantian Liang +3 more
doaj +1 more source
Note: A transimpedance amplifier for remotely located quartz tuning forks [PDF]
Review of Scientific Instruments, 2012 The cable capacitance in cryogenic and high vacuum applications of quartz tuning forks imposes severe constraints on the bandwidth and noise performance of the measurement. We present a single stage low noise transimpedance amplifier with a bandwidth exceeding 1 MHz and provide an in-depth analysis of the dependence of the amplifier parameters on the ...
Kleinbaum, Ethan, Csathy, Gabor
openaire +4 more sources
Quartz Tuning Fork Resonance Tracking and application in Quartz Enhanced Photoacoustics Spectroscopy. [PDF]
Sensors (Basel), 2019 The quartz tuning fork (QTF) is a piezoelectric transducer with a high quality factor that was successfully employed in sensitive applications such as atomic force microscopy or Quartz-Enhanced Photo-Acoustic Spectroscopy (QEPAS). The variability of the environment (temperature, humidity) can lead to a drift of the QTF resonance.
Rousseau R +4 more
europepmc +5 more sources
Photoacoustics, 2020 We report on a comparison between piezoelectric and interferometric readouts of vibrations in quartz tuning forks (QTFs) when acting as sound wave transducers in a quartz-enhanced photoacoustic setup (QEPAS) for trace gas detection.
Stefano Dello Russo +7 more
doaj +1 more source