scholarly journals Simultaneous measurement of density and viscosity in gases with a quartz tuning fork resonator by tracking of the series resonance frequency

2011 ◽  
Vol 25 ◽  
pp. 1297-1300 ◽  
Author(s):  
J.K. Sell ◽  
A.O. Niedermayer ◽  
B. Jakoby
Keyword(s):  
Resonance Frequency ◽  
Simultaneous Measurement ◽  
Tuning Fork ◽  
Quartz Tuning Fork ◽  
Series Resonance

scholarly journals Dynamic Responses of Electrically Driven Quartz Tuning Fork and qPlus Sensor: A Comprehensive Electromechanical Model for Quartz Tuning Fork

Sensors ◽  
2019 ◽  
Vol 19 (12) ◽  
pp. 2686
Author(s):  
Manhee Lee ◽  
Bongsu Kim ◽  
Sangmin An ◽  
Wonho Jhe
Keyword(s):  
Resonance Frequency ◽  
Quality Factor ◽  
Tuning Fork ◽  
Quartz Tuning Fork ◽  
Dynamic Responses ◽  
Peak Amplitude ◽  
Quantitative Prediction ◽  
Dynamic Features ◽  
Electromechanical Model ◽  
Different Characteristics

A quartz tuning fork and its qPlus configuration show different characteristics in their dynamic features, including peak amplitude, resonance frequency, and quality factor. Here, we present an electromechanical model that comprehensively describes the dynamic responses of an electrically driven tuning fork and its qPlus configuration. Based on the model, we theoretically derive and experimentally validate how the peak amplitude, resonance frequency, quality factor, and normalized capacitance are changed when transforming a tuning fork to its qPlus configuration. Furthermore, we introduce two experimentally measurable parameters that are intrinsic for a given tuning fork and not changed by the qPlus configuration. The present model and analysis allow quantitative prediction of the dynamic characteristics in tuning fork and qPlus, and thus could be useful to optimize the sensors’ performance.

scholarly journals Resonance frequency-retuned quartz tuning fork as a force sensor for noncontact atomic force microscopy

2014 ◽  
Vol 105 (4) ◽  
pp. 043107 ◽  
Author(s):  
Hiroaki Ooe ◽  
Tatsuya Sakuishi ◽  
Makoto Nogami ◽  
Masahiko Tomitori ◽  
Toyoko Arai
Keyword(s):  
Atomic Force Microscopy ◽  
Resonance Frequency ◽  
Tuning Fork ◽  
Quartz Tuning Fork ◽  
Force Sensor ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals HCl ppb-level detection based on QEPAS sensor using a low resonance frequency quartz tuning fork

2016 ◽  
Vol 233 ◽  
pp. 388-393 ◽  
Author(s):  
Yufei Ma ◽  
Ying He ◽  
Xin Yu ◽  
Cheng Chen ◽  
Rui Sun ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Tuning Fork ◽  
Quartz Tuning Fork ◽  
Qepas Sensor

scholarly journals Ppb-level detection of ammonia based on QEPAS using a power amplified laser and a low resonance frequency quartz tuning fork

2017 ◽  
Vol 25 (23) ◽  
pp. 29356 ◽  
Author(s):  
Yufei Ma ◽  
Ying He ◽  
Yao Tong ◽  
Xin Yu ◽  
Frank K. Tittel
Keyword(s):  
Resonance Frequency ◽  
Tuning Fork ◽  
Quartz Tuning Fork

scholarly journals Influence of Air Pressure on the Resonance Properties of a T-Shaped Quartz Tuning Fork Coupled with Resonator Tubes

2021 ◽  
Vol 11 (17) ◽  
pp. 7974
Author(s):  
Mariagrazia Olivieri ◽  
Andrea Zifarelli ◽  
Giansergio Menduni ◽  
Michele Di Gioia ◽  
Cristoforo Marzocca ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Theoretical Analysis ◽  
Resonance Frequency ◽  
Quality Factor ◽  
Tuning Fork ◽  
Quartz Tuning Fork ◽  
Air Pressure ◽  
Acoustic Coupling ◽  
Air Damping ◽  
Resonance Properties

A theoretical analysis and experimental investigation of the influence of gas pressure on resonance properties, namely, the quality factor and resonance frequency, of a T-shaped quartz tuning fork (QTF) is reported here. Two configurations are considered: a bare QTF, and a QTF coupled with a pair of resonator tubes (spectrophone). In both configurations, the effect of air on resonance frequency due to the additional inertia on prong motion and the influence of air damping on the quality factor, were analysed. By comparing the bare QTF and the spectrophone results, the effect of pressure on the acoustic coupling between the QTF and the tubes was theoretically modelled and then validated. The results show that acoustic coupling is strongly influenced by air pressure, leading to a shift of resonance frequency and a decrease in the quality factor up to 24%.

scholarly journals Quartz Tuning Fork Sensor-Based Dosimetry for Sensitive Detection of Gamma Radiation

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7035
Author(s):  
Nadyah Alanazi ◽  
Abdullah N. Alodhayb ◽  
Atheer Almutairi ◽  
Hanan Alshehri ◽  
Sarah AlYemni ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Resonance Frequency ◽  
Tuning Fork ◽  
Low Cost ◽  
Radiation Detector ◽  
Quartz Tuning Fork ◽  
Fast Response ◽  
Gold Coating ◽  
Before And After ◽  
Small Change

This study generally relates to nuclear sensors and specifically to detecting nuclear and electromagnetic radiation using an ultrasensitive quartz tuning fork (QTF) sensor. We aim to detect low doses of gamma radiation with fast response time using QTF. Three different types of QTFs (uncoated and gold coated) were used in this study in order to investigate their sensitivity to gamma radiations. Our results show that a thick gold coating on QTF can enhance the quality factor and increase the resonance frequency from 32.7 to 32.9 kHz as compared to uncoated QTF. The results also show that increasing the surface area of the gold coating on the QTF can significantly enhance the sensitivity of the QTF to radiation. We investigated the properties of gold-coated and uncoated QTFs before and after irradiation by scanning electron microscopy. We further investigated the optical properties of SiO2 wafers (quartz) by spectroscopic ellipsometry (SE). The SE studies revealed that even a small change in the microstructure of the material caused by gamma radiation would have an impact on mechanical properties of QTF, resulting in a shift in resonance frequency. Overall, the results of the experiments demonstrated the feasibility of using QTF sensors as an easy to use, low-cost, and sensitive radiation detector.

Research on the influence of transparent vacuum encapsulation quartz tuning fork on the photo-thermoelastic spectroscopy of acetylene

2016 ◽  
Vol 30 (30) ◽  
pp. 1650364 ◽  
Author(s):  
Zhouqiang Zhang ◽  
Shuhai Jia ◽  
Yonglin Wang ◽  
Zhenhua Tang ◽  
Fei Wang
Keyword(s):  
Resonance Frequency ◽  
Quality Factor ◽  
Tuning Fork ◽  
Detection System ◽  
Quartz Tuning Fork ◽  
Subsequent Research ◽  
First Time

In this paper, a transparent vacuum-encapsulated quartz tuning fork (QTF) is proposed for the first time to improve the quality factor and sensitivity of QTF sensors. Increasing the vacuum considerably improved the quality factor of QTF, and the resonance frequency was also shifted to higher values to 10 Hz. Subsequently, the spectroscopy detection of acetylene gas using an exposed QTF and a transparent vacuum-encapsulated QTF was investigated. The sensitivity of the detection system improved in the presence of the transparent vacuum-sealed QTF. The current findings represent a gateway to subsequent research in photo-thermoelastic spectroscopy.

Force Sensor and its Application to Tuning Fork Response Measurement

2013 ◽  
Vol 804 ◽  
pp. 222-227
Author(s):  
Suwilai Areejit ◽  
Anurak Jansri ◽  
Pitikhate Sooraksa
Keyword(s):  
Resonance Frequency ◽  
Tuning Fork ◽  
Force Measurement ◽  
Quartz Tuning Fork ◽  
Mass Effect ◽  
Force Sensor ◽  
Electrical Signal ◽  
Response Measurement ◽  
Nanoscale Material ◽  
Mechanical Sensors

Generally, force measurement of nanoscale material widely employs a quartz tuning fork which is resonant mechanical sensors on 32.768 kHz resonance frequency and is powerful tools. But, this paper designs the sensor by using tuning fork on 3 kHz and modifies the tuning fork by a tiny pin adhesive into the end of prong. In experiment, measurements of electrical signal from piezoelectric are study of load-mass effect and pin position. 2 touching techniques are considered: a shear-force type and a tapping mode type with highly position movement system. Silicone rubber, vinyl eraser and hydrogel are elastic material for testing. Results show that both weight and position of pin is significant influencer for resonance frequency and quality factor of sensor. Finally, the tuning fork response experimentation shown this method can be applied to material classification.

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