Results 191 to 200 of about 13,912 (266)
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Journal of Low Temperature Physics, 2007
Use of a quartz tuning fork for precise measurements of density has been studied in normal 3He liquid and in 4He liquid and vapor, spanning a reasonably wide range of fluid densities. It is evident that the compressibility of the fluid must be accounted for in order to properly interpret the resonator response.
E. M. Pentti +3 more
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Use of a quartz tuning fork for precise measurements of density has been studied in normal 3He liquid and in 4He liquid and vapor, spanning a reasonably wide range of fluid densities. It is evident that the compressibility of the fluid must be accounted for in order to properly interpret the resonator response.
E. M. Pentti +3 more
openaire +1 more source
Quartz tuning fork based microwave impedance microscopy
Review of Scientific Instruments, 2016Microwave impedance microscopy (MIM), a near-field microwave scanning probe technique, has become a powerful tool to characterize local electrical responses in solid state samples. We present the design of a new type of MIM sensor based on quartz tuning fork and electrochemically etched thin metal wires. Due to a higher aspect ratio tip and integration
Yong-Tao Cui, Eric Yue Ma, Zhi-Xun Shen
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Quartz-Crystal Tuning-Fork Tactile Sensor
Japanese Journal of Applied Physics, 1999Sensing behavior of a quartz-crystal tuning-fork tactile sensor was tested using several types of materials (metals and slide glass) and several sheets of sandpaper of different roughnesses fixed on copper or aluminum plates with acrylic resin paste.
Hideaki Itoh +2 more
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Double-ended Tuning Fork Quartz Accelerometer
40th Annual Symposium on Frequency Control, 1986Quartz accelerometers with frequency output have been designed and built using etched double-ended tuning fork technology. These devices consist of two tuning forks connected in a cantilever beam configuration with beryllium-copper spacers which serves as a proof mass and inboard spacer.
W.J. Kass, G.S. Snow
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Mid-infrared swept cavity-enhanced photoacoustic spectroscopy using a quartz tuning fork
Applied Physics Letters, 2023We report the development of swept cavity-enhanced photoacoustic spectroscopy using a quartz tuning fork for ultra-sensitive and high-resolution molecular spectroscopy.
Qinxue Nie +4 more
semanticscholar +1 more source
IEEE Sensors Journal, 2023
In this article, a dual-spectroscopy gas sensing system based on a ring cavity laser and quartz tuning fork (QTF) is designed. A 15 m erbium-doped fiber (EDF) with 1500 ppm doping concentration is used as a gain medium, and a piezoelectric transducer ...
Shaoqiang Bi +5 more
semanticscholar +1 more source
In this article, a dual-spectroscopy gas sensing system based on a ring cavity laser and quartz tuning fork (QTF) is designed. A 15 m erbium-doped fiber (EDF) with 1500 ppm doping concentration is used as a gain medium, and a piezoelectric transducer ...
Shaoqiang Bi +5 more
semanticscholar +1 more source
Laser & Photonics Reviews
In this paper, an ultrahigh sensitive light‐induced thermoelastic spectroscopy (LITES) sensor based on a trilayer ultrathin perfect absorber coated T‐head quartz tuning fork (QTF) is reported for the first time.
Runqiu Wang +6 more
semanticscholar +1 more source
In this paper, an ultrahigh sensitive light‐induced thermoelastic spectroscopy (LITES) sensor based on a trilayer ultrathin perfect absorber coated T‐head quartz tuning fork (QTF) is reported for the first time.
Runqiu Wang +6 more
semanticscholar +1 more source
IEEE Sensors Journal, 2023
The concentration of oxygen (O2) plays a crucial role in the metabolic respiration, maturation, and ripening processes of fruits. In this study, we propose a novel method for gas detection called light-induced thermoelastic spectroscopy (LITES), which ...
J. Dai +6 more
semanticscholar +1 more source
The concentration of oxygen (O2) plays a crucial role in the metabolic respiration, maturation, and ripening processes of fruits. In this study, we propose a novel method for gas detection called light-induced thermoelastic spectroscopy (LITES), which ...
J. Dai +6 more
semanticscholar +1 more source
Quartz crystal tuning fork photoacoustic point sensing
Sensors and Actuators B: Chemical, 2010Abstract Achieving chemical specificity in trace detection of small molecules is a challenge. Here we describe a highly selective method for detection of trace chemicals using photoacoustic spectroscopy of adsorbed molecules on a quartz crystal tuning fork.
Charles W. Van Neste +4 more
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ACS Sensors
In this paper, a highly sensitive methane (CH4) and acetylene (C2H2) dual-gas light-induced thermoelastic spectroscopy (LITES) sensor based on a novel dual-path multiring multipass cell (DPMR-MPC) and a circle-head quartz tuning fork (QTF) was ...
Haiyue Sun +4 more
semanticscholar +1 more source
In this paper, a highly sensitive methane (CH4) and acetylene (C2H2) dual-gas light-induced thermoelastic spectroscopy (LITES) sensor based on a novel dual-path multiring multipass cell (DPMR-MPC) and a circle-head quartz tuning fork (QTF) was ...
Haiyue Sun +4 more
semanticscholar +1 more source