Results 31 to 40 of about 10,013 (252)

Quartz Tuning Fork Resonance Tracking and application in Quartz Enhanced Photoacoustics Spectroscopy [PDF]

open access: yesSensors, 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.
Roman Rousseau   +2 more
exaly   +6 more sources

High-sensitivity methane detection based on QEPAS and H-QEPAS technologies combined with a self-designed 8.7 kHz quartz tuning fork. [PDF]

open access: yesPhotoacoustics
Methane (CH4) is a greenhouse gas as well as being flammable and explosive. In this manuscript, quartz-enhanced photoacoustic spectroscopy (QEPAS) and heterodyne QEPAS (H-QEPAS) exploring a self-designed quartz tuning fork (QTF) with resonance frequency (
Liang T, Qiao S, Chen Y, He Y, Ma Y.
europepmc   +2 more sources

Anti-IgG Doped Melanin Nanoparticles Functionalized Quartz Tuning Fork Immunosensors for Immunoglobulin G Detection: In Vitro and In Silico Study. [PDF]

open access: yesSensors (Basel)
The quartz tuning fork (QTF) is a promising instrument for biosensor applications due to its advanced properties such as high sensitivity to physical quantities, cost-effectiveness, frequency stability, and high-quality factor.
Gürcan D, Baysoy E, Kaleli-Can G.
europepmc   +2 more sources

Introduction to the quartz tuning fork [PDF]

open access: yesAmerican Journal of Physics, 2007
International audienceWe discuss various aspects of the quartz tuning fork, ranging from its original purpose as a high quality factor resonator for use as a stable frequency reference, to more exotic applications in sensing and scanning probe microscopy.
Friedt, J.-M., Carry, E.
core   +3 more sources

Integrated near-infrared QEPAS sensor based on a 28 kHz quartz tuning fork for online monitoring of CO2 in the greenhouse. [PDF]

open access: yesPhotoacoustics, 2022
In this paper, a highly sensitive and integrated near-infrared CO2 sensor was developed based on quartz-enhanced photoacoustic spectroscopy (QEPAS).
Liu Y   +9 more
europepmc   +2 more sources

Temperature Modeling and Compensation of Double h Quartz Tuning Fork Gyroscope

open access: yesProcedia Engineering, 2011
The double-H quartz tuning fork has a (zyω)5° cut shape[1], its structure and vibration mode are different with H quartz tuning fork clearly, and we have applied for a patent for the structure of the double-H quartz tuning fork gyroscope.
Zhixiong, Zhang   +5 more
exaly   +2 more sources

Design of a Portable and Low-Cost Mass Sensitive Quartz Tuning Fork Sensor

open access: yesProceedings, 2017
The resonance frequency of quartz tuning fork (QTF) depends on the mass adsorbed to its prongs, so it is used to measure minor mass changes and detect target analyte at picogram levels. [...]
Mehmet Altay Ünal   +2 more
doaj   +2 more sources

Improving the Lateral Resolution of Quartz Tuning Fork-Based Sensors in Liquid by Integrating Commercial AFM Tips into the Fiber End [PDF]

open access: yesSensors, 2015
The use of quartz tuning fork sensors as probes for scanning probe microscopy is growing in popularity. Working in shear mode, some methods achieve a lateral resolution comparable with that obtained with standard cantilevered probes, but only in ...
Laura Gonzalez   +5 more
doaj   +2 more sources

Highly Sensitive T-Shaped Quartz Tuning Fork Based CH4-Light-Induced Thermoelastic Spectroscopy Sensor with Hydrogen and Helium Enhanced Technique [PDF]

open access: yesSensors (Basel)
In this paper, a highly sensitive methane (CH4) sensor based on light-induced thermoelastic spectroscopy (LITES) and a T-shaped quartz tuning fork (QTF) with hydrogen (H2) and helium (He) enhancement techniques are reported for the first time.
Yuanzhi Wang   +4 more
europepmc   +2 more sources

Influence of Tuning Fork Resonance Properties on Quartz-Enhanced Photoacoustic Spectroscopy Performance

open access: yesSensors, 2019
A detailed investigation of the influence of quartz tuning forks (QTFs) resonance properties on the performance of quartz-enhanced photoacoustic spectroscopy (QEPAS) exploiting QTFs as acousto-electric transducers is reported.
Huadan Zheng   +15 more
doaj   +3 more sources

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