Results 221 to 230 of about 7,101 (242)
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Femto-Newton force sensitivity quartz tuning fork sensor
Sensors and Actuators A: Physical, 2007We 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 +2 more
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Optimal tuning fork for Quartz Enhanced PhotoAcoustic Spectroscopy
Conference on Lasers and Electro-Optics, 2016Two 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 +6 more
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Electrode for tuning fork type quartz crystal vibrator
The Journal of the Acoustical Society of America, 1987A 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 +2 more
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Air and gas damping of quartz tuning forks
Sensors and Actuators, 1983Abstract 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
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THE TUNING-FORK ROOTS OF THE QUARTZ CLOCK
2023Abstract The chapter explores the development of new exact tuning-fork frequency-measuring standards useful for the novel range of radio communication during WWI and its aftermath, and the construction of the first electronic clock required to monitor the accuracy of such a standard.
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Quartz Tuning Fork Crystal Using Overtone Flexure Modes
Thirty Fifth Annual Frequency Control Symposium, 1981Summary We have developed high frequency quartz tuning fork crystals using different overtone flexure modes over the frequency range from 15OKHz to lMHz. These quartz tuning fork crystals were produced by using photolithographic, chemical etching and laser frequency adjustment manufacturing techniques, and packaged in a relatively small ceramic package.
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Quartz tuning fork electroacoustic transducer
The Journal of the Acoustical Society of America, 1984openaire +1 more source
Subminiature Quartz Tuning Fork Resonator
27th Annual Symposium on Frequency Control, 1973openaire +1 more source