Results 11 to 20 of about 594,359 (210)

The Coefficient of the Voltage Induced Frequency Shift Measurement on a Quartz Tuning Fork [PDF]

open access: yesSensors, 2014
We have measured the coefficient of the voltage induced frequency shift (VIFS) of a 32.768 KHz quartz tuning fork. Three vibration modes were studied: one prong oscillating, two prongs oscillating in the same direction, and two prongs oscillating in ...
Yubin Hou, Qingyou Lu
doaj   +7 more sources

Finite Element Analysis of Electrically Excited Quartz Tuning Fork Devices [PDF]

open access: yesSensors, 2013
Quartz Tuning Fork (QTF)-based Scanning Probe Microscopy (SPM) is an important field of research. A suitable model for the QTF is important to obtain quantitative measurements with these devices.
Manel Puig-Vidal   +5 more
doaj   +6 more sources

Introduction to the quartz tuning fork [PDF]

open access: yesAmerican Journal of Physics, 2007
We 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. We show experimentally how to tune the quality factor by injecting energy in phase with the current at resonance ...
Friedt, J.-M., Carry, E.
openaire   +3 more sources

A study of small sized quartz tuning fork using finite element analysis [PDF]

open access: yesMATEC Web of Conferences, 2017
This is a preliminary study to small sized quartz tuning fork operating at 32.768 kHz for several types of supporting structure. Tine length and tine width can be calculated by Euler-Bernoulli equation (Exact Solution), but the base shall be analyzed by ...
Tsai Gwo-Chung
doaj   +2 more sources

Driveless gyroscope response of a quartz piezoelectric vibratory tuning fork [PDF]

open access: yesAIP Conference Proceedings, 2015
In this paper, we report on the observation of a gyroscope response in the absence of drive oscillator circuitry in a single ended quartz piezoelectric tuning fork. The tuning fork gyroscope was fabricated by conventional photolithography and wet etching techniques.
M.R. Abdel-Rahman   +2 more
openaire   +3 more sources

Test System for Quartz Tuning Fork Temperature Sensor

open access: yesJournal of Harbin University of Science and Technology, 2017
:Quartz tuning fork temperature Sen SorS (QTFTS) 1S月 kind of high sensor,which has digital signal output and uses quartz tuning fork resonant device as precision digital temperature thermal applications. It can convert the change of Aimed at to study the
LIU Chun-hua, MENG Yue-xia, MA Jing
doaj   +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

Calibration of a Quartz Tuning Fork as a Sound Detector

open access: yesApplied Sciences
This study compares the performance of a quartz tuning fork (QTF) with a highly sensitive ultrasound microphone in the context of acoustic measurements, applying the substitution calibration method.
Judith Falkhofen, Marcus Wolff
doaj   +2 more sources

Design of a Transformer Oil Viscosity, Density, and Dielectric Constant Simultaneous Measurement System Based on a Quartz Tuning Fork [PDF]

open access: yesSensors
Transformer oil, crucial for transformer and power system safety, demands effective monitoring. Aiming to address the problems of expensive and bulky equipment, poor real-time performance, and single parameter detection of traditional measurement methods,
Hao Yang, Shijie Chen, Jiafeng Ding
doaj   +2 more sources

Applications of the quartz tuning fork in classical and superfluid hydrodynamics

open access: yesEPJ Web of Conferences, 2012
We present a short review of the multitude of applications of the commercially produced quartz tuning fork in cryogenic fluid dynamics, using cold gaseous, normal liquid and superfluid 4He as working fluids with extraordinary, but well-known and tunable ...
La Mantia Marco   +2 more
doaj   +2 more sources

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