scholarly journals Analysis of Frequency Response and Scale-Factor of Tuning Fork Micro-Gyroscope Operating at Atmospheric Pressure

Sensors ◽  
2015 ◽  
Vol 15 (2) ◽  
pp. 2453-2472 ◽  
Author(s):  
Xukai Ding ◽  
Hongsheng Li ◽  
Yunfang Ni ◽  
Pengcheng Sang
Keyword(s):  
Frequency Response ◽  
Atmospheric Pressure ◽  
Tuning Fork ◽  
Scale Factor

Effect of Atmospheric Pressure on the Frequency of a Tuning-fork

Nature ◽  
1929 ◽  
Vol 124 (3127) ◽  
pp. 511-511
Author(s):  
Y. NAMBA
Keyword(s):  
Atmospheric Pressure ◽  
Tuning Fork

A novel tuning fork gyroscope with high Q-factors working at atmospheric pressure

2005 ◽  
Vol 11 (2-3) ◽  
pp. 111-116 ◽  
Author(s):  
Y. Chen ◽  
J. Jiao ◽  
B. Xiong ◽  
L. Che ◽  
X. Li ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Tuning Fork ◽  
High Q ◽  
Q Factors

A Lateral-Axis Microelectromechanical Tuning-Fork Gyroscope With Decoupled Comb Drive Operating at Atmospheric Pressure

2010 ◽  
Vol 19 (3) ◽  
pp. 458-468 ◽  
Author(s):  
Zhong Yang Guo ◽  
Long Tao Lin ◽  
Qian Cheng Zhao ◽  
Zhen Chuan Yang ◽  
Huikai Xie ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Tuning Fork ◽  
Comb Drive ◽  
Lateral Axis

scholarly journals Frequency response of atmospheric pressure gas breakdown in micro/nanogaps

2013 ◽  
Vol 103 (6) ◽  
pp. 063102 ◽  
Author(s):  
Abbas Semnani ◽  
Ayyaswamy Venkattraman ◽  
Alina A. Alexeenko ◽  
Dimitrios Peroulis
Keyword(s):  
Frequency Response ◽  
Atmospheric Pressure ◽  
Gas Breakdown

scholarly journals Determination of seismograph constants from the calibration curve

1981 ◽  
Vol 71 (2) ◽  
pp. 531-540
Author(s):  
Simón Gershanik ◽  
Carlota Gershanik
Keyword(s):  
Differential Equations ◽  
Frequency Response ◽  
Explicit Expression ◽  
Characteristic Equation ◽  
Calibration Curve ◽  
Explicit Knowledge ◽  
Scale Factor ◽  
Long Period ◽  
Simple Step

abstract The explicit expression of the long-period WWSSN calibration curve can be obtained solving the differential equations of the seismograph system in terms of ew and identifying the characteristic equation to a product of polynomials of the second degree. The coefficients of these polynomials are the equivalent constants. These and a scale factor can be obtained from the calibration curve. The frequency response of the seismograph system is fully determined by these elements provided that the reduced motor constant and the calibration current are known. The explicit knowledge of the seismograph partial constants is not necessary. Newton-Raphson's method is generally efficient to obtain the elements from the calibration curve, but it may fail some times. Levenberg's method (slightly modified) and also simple step reduction can be helpful in such cases. The unknowns can be obtained either freely or under the constraint that some of the partial constants have the values assigned to them. The latter may be convenient when the behavior of parts of the system is affected by some trouble.

Frequency response of in-plane coupled resonators for investigating the acceleration sensitivity of MEMS tuning fork gyroscopes

2012 ◽  
Vol 18 (6) ◽  
pp. 797-803 ◽  
Author(s):  
Thakur Praveen Singh ◽  
Koji Sugano ◽  
Toshiyuki Tsuchiya ◽  
Osamu Tabata
Keyword(s):  
Frequency Response ◽  
Tuning Fork ◽  
Coupled Resonators

scholarly journals Quartz Enhanced Photoacoustic Spectroscopy Based Gas Sensor with a Custom Quartz Tuning Fork

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 735
Author(s):  
Maxime Duquesnoy ◽  
Guillaume Aoust ◽  
Jean-Michel Melkonian ◽  
Raphaël Lévy ◽  
Myriam Raybaut ◽  
...  
Keyword(s):  
Quality Factor ◽  
Penetration Depth ◽  
Gas Sensor ◽  
Photoacoustic Spectroscopy ◽  
Atmospheric Pressure ◽  
Tuning Fork ◽  
Quartz Tuning Fork ◽  
Atmospheric Conditions ◽  
Co2 Detection ◽  
Inner Diameter

We have fabricated a custom quartz tuning fork (QTF) with a reduced fundamental frequency, a larger gap between the prongs and the best quality factor in air at atmospheric conditions ever reported. Acoustic microresonators have been added to the QTF, these were optimized through experiments. We demonstrate a normalized noise equivalent absorption of 3.7 × 10−9 W·cm−1·Hz−1/2 for CO2 detection at atmospheric pressure. Influence of the inner diameter and length of the microresonators has been studied as well as the penetration depth between the QTF prongs.

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