Design of Signal Analyzer for Single Coil Vibrating Wire Sensor Based On High Resolution Frequency Measurement Technology

2022 ◽  
Vol 10 (01) ◽  
pp. 7-15
Author(s):  
豪 张
Keyword(s):  
High Resolution ◽  
Frequency Measurement ◽  
Measurement Technology ◽  
Vibrating Wire ◽  
Single Coil

Improvement and Design of Single Coil Vibrating-Wire Sensor Signal Acquisition System Based on STM32

2014 ◽  
Vol 511-512 ◽  
pp. 764-769
Author(s):  
Suo Ying Mao ◽  
Jun Hua Zhao ◽  
Fang Fang Zhou
Keyword(s):  
Low Voltage ◽  
Frequency Measurement ◽  
Acquisition System ◽  
Signal Acquisition ◽  
Sensor Signal ◽  
Vibrating Wire ◽  
Soil Pressure ◽  
Single Coil ◽  
Voltage Feedback ◽  
Signal Normalization

Vibrating wire sensor signal acquisition system is widely used in the fields of water conservancy dam, slope, construction, mining and so on to measure osmotic pressure, soil pressure, strain and other physical quantities. This paper studies the single coil vibrating wire sensor signal acquisition system,which uses the STM32F103 core processor generating a low-voltage feedback PWM signal to excite vibrating wire with scanning frequency, after signal amplification, filtering and signal normalization through the frequency measurement module, and ultimately achieve frequency measurement. The system can improve the traditional vibrating wire acquisition instrument, so as to achieve fast and efficient and reliable long-lasting measurement. According to some simulation and designed circuit, the measured data and diagram can verify the feasibility of the method.

High Resolution Frequency Measurement Techniques for Relaxation Oscillator Based Capacitive Sensors

2021 ◽  
pp. 1-1
Author(s):  
Laxmeesha Somappa ◽  
Shahid Malik ◽  
Shuchin Aeron ◽  
Sameer Sonkusale ◽  
Maryam Shojaei Baghini
Keyword(s):  
High Resolution ◽  
Measurement Techniques ◽  
Relaxation Oscillator ◽  
Frequency Measurement ◽  
Capacitive Sensors

Very high resolution measurement of the penetration depth of superconductors by a novel single-coil inductance technique

2000 ◽  
Vol 71 (5) ◽  
pp. 2147-2153 ◽  
Author(s):  
A. Gauzzi ◽  
J. Le Cochec ◽  
G. Lamura ◽  
B. J. Jönsson ◽  
V. A. Gasparov ◽  
...  
Keyword(s):  
High Resolution ◽  
Penetration Depth ◽  
Coil Inductance ◽  
High Resolution Measurement ◽  
Resolution Measurement ◽  
Single Coil ◽  
Very High

scholarly journals Erratum: Corrigendum: High-Resolution Group Quantization Phase Processing Method in Radio Frequency Measurement Range

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Baoqiang Du ◽  
Dazheng Feng ◽  
Yaohua Tang ◽  
Xin Geng ◽  
Duo Zhang ◽  
...  
Keyword(s):  
High Resolution ◽  
Radio Frequency ◽  
Frequency Measurement ◽  
Measurement Range ◽  
Processing Method ◽  
Group Quantization

scholarly journals Long-range transport of terrain-induced turbulence from high-resolution numerical simulations

2011 ◽  
Vol 11 (22) ◽  
pp. 11793-11805 ◽  
Author(s):  
M. Katurji ◽  
S. Zhong ◽  
P. Zawar-Reza
Keyword(s):  
High Resolution ◽  
Aspect Ratio ◽  
Numerical Simulations ◽  
Long Range ◽  
Prediction Models ◽  
Atmospheric Transport ◽  
Weather Prediction ◽  
Measurement Technology ◽  
Topographic Features ◽  
Range Transport

Abstract. Over complex terrain, an important question is how various topographic features may generate or alter wind turbulence and how far the influence can be extended downstream. Current measurement technology limits the capability in providing a long-range snapshot of turbulence as atmospheric eddies travel over terrain, interact with each other, change their productive and dissipative properties, and are then observed tens of kilometers downstream of their source. In this study, we investigate through high-resolution numerical simulations the atmospheric transport of terrain-generated turbulence in an atmosphere that is neutrally stratified. The simulations are two-dimensional with an isotropic spatial resolution of 15 m and run to a quasi-steady state. They are designed in such a way to allow an examination of the effects of a bell-shaped experimental hill with varying height and aspect ratio on turbulence properties generated by another hill 20 km upstream. Averaged fields of the turbulent kinetic energy (TKE) imply that terrain could have a large influence on velocity perturbations at least 30H (H is the terrain height) upstream and downstream of the terrain, with the largest effect happening in the area of the largest pressure perturbations. The results also show that downstream of the terrain the TKE fields are sensitive to the terrain's aspect ratio with larger enhancement in turbulence by higher aspect ratio, while upstream there is a suppression of turbulence that does not appear to be sensitive to the terrain aspect ratio. Instantaneous vorticity fields shows very detailed flow structures that resemble a multitude of eddy scales dynamically interacting while shearing oppositely paired vortices. The knowledge of the turbulence production and modifications by topography from these high-resolution simulations can be helpful in understanding long-range terrain-induced turbulence and improving turbulence parameterizations used in lower resolution weather prediction models.

High-Resolution Frequency Measurement of the3P1-3P024Mg Transition

Metrologia ◽  
1987 ◽  
Vol 24 (3) ◽  
pp. 133-138 ◽  
Author(s):  
A Godone ◽  
E Bava ◽  
C Novero
Keyword(s):  
High Resolution ◽  
Frequency Measurement
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