Progression of the vibratory analysis technique by improving the piezoelectric sensor measurement accuracy

2018 ◽  
Vol 60 (12) ◽  
pp. 2972-2977 ◽  
Author(s):  
Zine Ghemari
Keyword(s):  
Measurement Accuracy ◽  
Piezoelectric Sensor ◽  
Analysis Technique ◽  
Vibratory Analysis ◽  
Sensor Measurement

Defects Diagnosis by Vibration Analysis and Improvement of Vibration Sensor Measurement Accuracy

2019 ◽  
Vol 17 (8) ◽  
pp. 608-613
Author(s):  
Zine Ghemari ◽  
Salah Saad
Keyword(s):  
Vibration Analysis ◽  
Measurement Accuracy ◽  
Vibration Sensor ◽  
Sensor Measurement

Improvement of the piezoelectric sensor by the progress of the measurement accuracy

2021 ◽  
Author(s):  
Zine Ghemari ◽  
Saad Salah ◽  
Mabrouk Defdaf
Keyword(s):  
Measurement Accuracy ◽  
Piezoelectric Sensor

scholarly journals Validating chronograph photo sensor measurement accuracy of stone-tipped projectile velocity

2020 ◽  
pp. 100037
Author(s):  
Metin I. Eren ◽  
Jay Romans ◽  
Briggs Buchanan ◽  
Michelle R. Bebber
Keyword(s):  
Measurement Accuracy ◽  
Projectile Velocity ◽  
Photo Sensor ◽  
Sensor Measurement

Improvement of the Vibratory Analysis by Enhancement of Accelerometer Characteristics

2020 ◽  
Vol 18 (1) ◽  
pp. 39-42
Author(s):  
Salah Belkhiri ◽  
Zine Ghemari ◽  
Salah Saad ◽  
Ghania Boudechiche
Keyword(s):  
Mathematical Model ◽  
Measurement Error ◽  
Comparative Study ◽  
Damping Ratio ◽  
Operating Principle ◽  
Piezoelectric Accelerometer ◽  
Analysis Technique ◽  
Vibratory Analysis ◽  
Damping Rate ◽  
The Mathematical Model

In this work, the mathematical model suitable for the operating principle of the piezoelectric accelerometer is extracted then this model which connects the accuracy and the measurement error according of the frequency ration and the damping rate is validated by simulation. The model developed makes it possible to improve the performances of the accelerometer such as precision, sensitivity and reliability as well as to propose a new conception of the latter. A comparative study is made to show the importance of our results compared to literature, these results have showed that a suitable and appropriate choice of damping ratio develops the accelerometer parameters and enhances the vibratory analysis technique.

scholarly journals Detection of Moving Load on Pavement Using Piezoelectric Sensors

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2366 ◽  
Author(s):  
Tao Xiang ◽  
Kangxu Huang ◽  
He Zhang ◽  
Yangyang Zhang ◽  
Yinnan Zhang ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Traffic Safety ◽  
Output Voltage ◽  
Measurement Accuracy ◽  
Layer Structure ◽  
Moving Load ◽  
Piezoelectric Sensor ◽  
Elastic Half Space ◽  
Weigh In Motion ◽  
Space Method

More and more researches have been carried out recently on Weigh-In-Motion (WIM) technology for solving the traffic safety problems caused by overload. In this article, we aim to study the measurement accuracy of the WIM system. Based on the electromechanical theory and elastic half-space method, we establish a theoretical model of multi-layer structure to investigate the correlation between the output voltage of the piezoelectric sensor and the applied force. In addition, we performed cyclic and moving load experiments to verify the accuracy of the analytical calculations. The load magnitude identified by this theoretical model matched the experiments very well, which shows that this model is effective for the WIM system. In addition, we proved that the load frequency is an important factor affecting the measurement accuracy of the sensor, which further enables us to design more suitable sensors for certain use scenarios.

Simulation of Indoor Environment Monitor Calibration Gas Mantle Based on FLUENT

2012 ◽  
Vol 472-475 ◽  
pp. 2217-2222
Author(s):  
Sui Jun Yang ◽  
Jia Ying Song ◽  
De Xin Hou ◽  
Shu Liang Ye
Keyword(s):  
Indoor Environment ◽  
Measurement Accuracy ◽  
Concentration Change ◽  
Calibration System ◽  
Calibration Process ◽  
Gas Concentration ◽  
Fluent Software ◽  
Sensor Measurement ◽  
Calibration Gas ◽  
Standard Gas

The concentration error of standard gas in different locations of calibration system will have different degrees of impact on accuracy of calibration results. Among them, concentration of standard gas in gas mantle that combine detection sensors and gas transmission pipelines show the greatest impact on calibration results. In order to realize monitoring and analysis of the overall calibration process, this paper simulated gas concentration change status during calibration process of indoor environmental monitor gas mantle by FLUENT software. Gas concentration change status and sensor measurement accuracy at situations of different size sensors placed in the same gas mantle at the same location and same sensor placed in the same gas mantle at different location were analysed. Simulation results show that to make gas most quickly and evenly filled gas mantle, gas mantle size should be slightly larger than sensor and sensor should be placed in the top of the mantle as far as possible. On this condition, it can ensure gas concentrations error range between sensor workface and the inlet are within ±2%, thereby ensuring the accuracy of calibration results.

A Way to Improve Eddy Current Sensor Measurement Accuracy

2012 ◽  
Vol 160 ◽  
pp. 47-52
Author(s):  
En Ming Miao ◽  
Ya Yun Gong ◽  
Tian Ju Cheng ◽  
Peng Cheng Niu
Keyword(s):  
Error Analysis ◽  
Eddy Current ◽  
Measurement Errors ◽  
Measurement Accuracy ◽  
Measurement Data ◽  
Current Sensor ◽  
Analysis Method ◽  
Eddy Current Sensor ◽  
Catching Up ◽  
Sensor Measurement

Eddy current sensor is widely used in engineering applications.When it was calibrated, generally used random error analysis method,but this will expand the range of measurement errors and limit its engineering applications.In this paper, we use a new error analysis method to analyze upper and lower limit of multiple batches measurement data. At the same time, catching up with a criterion for the measurement time. This can obtain the measurement accuracy more precise and have good practical value.

scholarly journals Systematic Proportional Method for Improving the Measurement Accuracy of Passive Sensor Measurement System

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 3980-3986
Author(s):  
Jintao Zhang ◽  
Gang Li ◽  
Yongshun Luo ◽  
Shuqiang Yang ◽  
Han Tian ◽  
...  
Keyword(s):  
Measurement System ◽  
Measurement Accuracy ◽  
Sensor Measurement ◽  
Passive Sensor

scholarly journals Measurement Eccentricity the Moon’s Orbit with Image Analysis Technique by Using Tracker Software

2018 ◽  
Vol 1 (1) ◽  
pp. 19
Author(s):  
Ricka Tanzilla ◽  
Ishafit Jauhari ◽  
Yudhiakto Pramudya
Keyword(s):  
Image Analysis ◽  
Research Method ◽  
Measurement Accuracy ◽  
Physical Phenomenon ◽  
The Moon ◽  
Image Analysis Technique ◽  
Disk Diameter ◽  
The Earth ◽  
Analysis Technique

One of the interesting physical phenomenon to be studied is about eccentricity of the Moon's orbit on the movement of the Earth and the Moon as explained in Kepler's Law. In order to explain the phenomenon,several research has been done to determine the measurement accuracy of Moon disk diameter using Trackers and to know the result of the eccentricity value in the application of Kepler's Law. This research can produce eccentricity values accordance with the application of Kepler’sLaw. The research method used is Image Analysis Techniqueassisted with Tracker. The result of this research shows that the eccentricity value obtained is 0.07 ± 0.01. This is in accordance with Kepler's first Law which stated that orbits of each planet and satellite is an ellipse and has an eccentricity value of 0 <e <1. The value of eccentricity obtained has accuracy of 22%,if it compared with the actual value.Whereas, if it compared with the value of ephemeris then the value of accuracy is 8%.

Strain analysis in composite ceramics

1986 ◽  
Vol 44 ◽  
pp. 494-497
Author(s):  
W. M. Kriven
Keyword(s):  
Strain Field ◽  
Strain Analysis ◽  
Processing Temperature ◽  
Transformation Toughening ◽  
Zirconia Ceramics ◽  
Volume Increase ◽  
Analysis Technique ◽  
Fundamental Understanding ◽  
Contrast Analysis ◽  
Elastic Strain Field

Significant progress towards a fundamental understanding of transformation toughening in composite zirconia ceramics was made possible by the application of a TEM contrast analysis technique for imaging elastic strains. Spherical zirconia particles dispersed in a large-grained alumina matrix were examined by 1 MeV HVEM to simulate bulk conditions. A thermal contraction mismatch arose on cooling from the processing temperature of 1500°C to RT. Tetragonal ZrO2 contracted amisotropically with α(ct) = 16 X 10-6/°C and α(at) = 11 X 10-6/°C and faster than Al2O3 which contracted relatively isotropically at α = 8 X 10-6/°C. A volume increase of +4.9% accompanied the transformation to monoclinic symmetry at room temperature. The elastic strain field surrounding a particle before transformation was 3-dimensionally correlated with the internal crystallographic orientation of the particle and with the strain field after transformation. The aim of this paper is to theoretically and experimentally describe this technique using the ZrO2 as an example and thereby to illustrate the experimental requirements Tor such an analysis in other systems.

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