Results 221 to 230 of about 13,912 (266)

MXene-coated quartz tuning fork for sensitive light-induced thermoelastic spectroscopy.

Optics Express
This paper demonstrates a customized quartz tuning fork (QTF) coated with the titanium carbide (Ti3C2Tx) MXene film that can effectively enhance the sensitivity of light-induced thermoelastic spectroscopy (LITES).
Xiang Chen, Ruiyang Qu, Hao Liu, Lu Yao, Zhenyu Xu, Mai Hu, Wei Wang, Ruifeng Kan   +7 more
semanticscholar   +1 more source

A high sensitivity quartz tuning fork temperature sensor

2009 4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2009
In this paper, a highly sensitive temperature sensor based on quartz tuning fork resonators is reported. The temperature sensor is configured by ZY (110°/10°) Cut quartz crystal wafer based bulk acoustic wave (BAW) tuning fork resonators whose operating frequency is at 31 KHz.
null Jun Xu, null Bo You, null Xin Li, null Jing Ma   +3 more
openaire   +1 more source

Smart temperature sensor with quartz tuning fork resonators

2008 9th International Conference on Solid-State and Integrated-Circuit Technology, 2008
This paper discusses a smart temperature sensor system that comprises of a high performance quartz tuning fork temperature sensor, interface with CMOS circuitry and control algorithm for reconfiguration. The ideal thermo-sensitive cut for quartz tuning fork resonators is analyzed with the theory. The specific cut quartz tuning fork was fabricated using
Jun Xu, null Bo You, null Lei Ma, null Jing Ma, null Xin Li   +4 more
openaire   +1 more source

Influence of acoustic modes on resonance properties of a quartz tuning fork immersed in superfluid 4He and liquid mixtures 3He–4He

Low temperature physics (Woodbury, N.Y., Print)
The oscillating quartz tuning fork method has been used to study resonance phenomena in experimental cells of different sizes filled with superfluid 4He and concentrated liquid mixtures of 3He–4He.
V. Chagovets, V. Syvokon, S. Sokolov
semanticscholar   +1 more source

Automatic assembly of quartz tuning fork and microcantilever

2012 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2012
Conventional atomic force microscopes (AFMs) detect microcantilever deflection using an optical lever system. However, the complex mechanism of the optical lever system and the alignment of the laser spot on the microcantilever prevent such AFM systems from scanning large samples. AFM systems using a quartz tuning fork (QTF) as a force sensor have been
Chiao-Hua Cheng, Jian-Hua Chen, Jen-Yu Shieh, Shao-Kang Hung   +3 more
openaire   +1 more source

Electrostatic force microscopy using a quartz tuning fork

Applied Physics Letters, 2002
We demonstrate an electrostatic force microscopy based on a quartz tuning fork with 50 nm spatial resolution and 1 pN force sensitivity. We use a tuning fork with a spring constant of 1300 N/m and a Q factor of 3000. A sharpened nickel tip is attached to a prong of the tuning fork as well as electrically connected to the electrode of the prong.
Yongho Seo, Wonho Jhe, Cheol Seong Hwang
openaire   +1 more source

Femto-Newton force sensitivity quartz tuning fork sensor

Sensors and Actuators A: Physical, 2007
We describe a quartz tuning fork resonator that is smaller in size than previously reported sensors of the same shape. Smaller dimensions result in the reduced spring constant of the tuning fork resonator with important potential performance improvements in scanning probe microscopes and force sensing instruments.
Mladen Barbic, Lowell Eliason, James Ranshaw   +2 more
openaire   +1 more source

Optimal tuning fork for Quartz Enhanced PhotoAcoustic Spectroscopy

Conference on Lasers and Electro-Optics, 2016
Two custom tuning forks for quartz enhanced photoacoustic spectroscopy have been designed using analytical geometry optimization. Their performances are presented and they will be used in experiments to further improve the sensibility of the technique.
G. Aoust, R. Levy, M. Raybaut, J.-M. Melkonian, B. Bourgeteau, A. Godard, M. Lefebvre   +6 more
openaire   +1 more source

Electrode for tuning fork type quartz crystal vibrator

The Journal of the Acoustical Society of America, 1987
A tuning fork type quartz crystal vibrator has electrodes formed on its surfaces with the electrodes being divided into separated portions along the length of the tuning fork arms such that opposite electric fields and charges are juxtaposed in the same arm.
Shigeru Kogure, Eishi Momosaki, Minoru Inoue   +2 more
openaire   +1 more source

Air and gas damping of quartz tuning forks

Sensors and Actuators, 1983
Abstract The effects of air and gas pressure on the vibration of miniature quartz tuning forks are investigated. Beside damping, which decrease the Q factor of the resonator, the resonant frequency appears to vary quite linearly with the gas pressure. This basic effect could lead to the realization of a simple pressure sensing element. Analysis of
openaire   +1 more source