scholarly journals Measurement of Absolute Displacement-Amplitude of Ultrasonic Wave Using Piezo-Electric Detection Method

2017 ◽  
Vol 37 (1) ◽  
pp. 7-12
Author(s):  
Seong-Hyun Park ◽  
Jongbeom Kim ◽  
Kyung-Young Jhang
Keyword(s):  
Ultrasonic Wave ◽  
Detection Method ◽  
Displacement Amplitude ◽  
Absolute Displacement ◽  
Electric Detection ◽  
Piezo Electric

scholarly journals An improved gas kick detection method based on continuous Doppler ultrasonic wave in deep water drilling

2017 ◽  
Vol 9 (8) ◽  
pp. 168781401771542
Author(s):  
Quan Zhou ◽  
Hui Zhao ◽  
Shengnan Li ◽  
Yufa He ◽  
Huijie Zhang
Keyword(s):  
Ultrasonic Wave ◽  
Deep Water ◽  
Detection Method ◽  
Gas Kick ◽  
Continuous Doppler

scholarly journals Detection Technology of Foamed Mixture Lightweight Soil Embankment Based on Ultrasonic Wave Transmission Method

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Shikun Pu ◽  
Baoning Hong ◽  
Xin Liu ◽  
Fenqiang Xu ◽  
Hao Shan
Keyword(s):  
Ultrasonic Wave ◽  
Detection Method ◽  
Wave Transmission ◽  
Simulation Approach ◽  
Transmission Method ◽  
Detection Technology ◽  
Ultrasonic Parameters ◽  
Test Distance ◽  
Quality Diagnosis ◽  
Curing Age

This study attempted to establish a process that uses the ultrasonic wave transmission method to correlate the ultrasonic parameters with the material properties of Foamed Mixture Lightweight Soil (FMLS). The results were then applied for the defect detection of the FMLS embankment. First, the ultrasonic wave velocity (UPV) and amplitude (UPA) of FMLS with different mix proportions were collected continuously from 3rd day to 45th day in the curing age. The relationships between UPV versus FMLS elastic modulus, unconfined compressive strength, and density were calibrated. The variations in the ultrasonic parameters owing to the test distance and crack width were recorded. Then, the laboratory tests were reproduced through numerical simulation approach. Finally, the reliability and accuracy of the proposed detection method for FMLS were proved and validated through on-site tests. The proposed methodology, which is simple, stable, and reliable, was found to be suitable for the quality diagnosis of FMLS embankments after construction and during operation.

Experimental Study of Bellows Duct Grouting Compactness with Quantitative Detection

2014 ◽  
Vol 716-717 ◽  
pp. 322-327 ◽  
Author(s):  
Feng Chu ◽  
Yuan Cao ◽  
Guang Zhi Qi ◽  
Lei Gao
Keyword(s):  
Experimental Study ◽  
Ultrasonic Wave ◽  
Theoretical Basis ◽  
Detection Method ◽  
Concrete Slab ◽  
Quantitative Detection ◽  
Estimation Model ◽  
Ultrasonic Detection ◽  
Time Histories

In order to quantitatively detect the compactness of bellows duct grouting, by studying time-histories relation curve forming by ultrasonic wave transmitting in different thicknesses concrete samples. We get the acoustic time rule after ultrasonic passed through different compactness bellows duct. At the same time, establishing empty hole estimation model corresponding to the concrete samples and providing theoretical basis for judging porosity and predicting the grouting quality in the bellows duct. Meanwhile, dividing the bellows duct into five degrees complete compactness, 3/4 compactness, 1/2 compactness, 1/4 compactness, empty by setting up defects in the bellows duct, and then embedding them in concrete slab to do ultrasonic detection. The detection result shows that ultrasonic detection method can effectively quantitive estimate the grouting quality of prestressed bellows duct with establishing empty hole estimation model.

A Study on Ultrasonic Wave Detection Method for Clamp-on Ultrasonic Gas Flowmeter

2016 ◽  
Vol 9 (4) ◽  
pp. 158-164 ◽  
Author(s):  
Hiroshi NISHIGUCHI ◽  
Toshiyuki SAWAYAMA ◽  
Kouki NAGAMUNE
Keyword(s):  
Ultrasonic Wave ◽  
Detection Method ◽  
Wave Detection

scholarly journals A gas kick early detection method outside riser based on Doppler ultrasonic wave during deepwater drilling

2020 ◽  
Vol 47 (4) ◽  
pp. 846-854
Author(s):  
Bangtang YIN ◽  
Yingsong LIN ◽  
Zhiyuan WANG ◽  
Baojiang SUN ◽  
Shujie LIU ◽  
...  
Keyword(s):  
Early Detection ◽  
Ultrasonic Wave ◽  
Detection Method ◽  
Deepwater Drilling ◽  
Gas Kick

Solid-phase immunoelectron microscopy for rapid diagnosis of enteroviruses

1984 ◽  
Vol 42 ◽  
pp. 226-227 ◽  
Author(s):  
K. Pegg-Feige ◽  
F. W. Doane
Keyword(s):  
Electron Microscopy ◽  
Cell Culture ◽  
Immunoelectron Microscopy ◽  
Detection Method ◽  
Solid Phase ◽  
Protein A ◽  
Plant Viruses ◽  
Rapid Diagnosis ◽  
Virus Diagnosis ◽  
Antiviral Antibody

Immunoelectron microscopy (IEM) applied to rapid virus diagnosis offers a more sensitive detection method than direct electron microscopy (DEM), and can also be used to serotype viruses. One of several IEM techniques is that introduced by Derrick in 1972, in which antiviral antibody is attached to the support film of an EM specimen grid. Originally developed for plant viruses, it has recently been applied to several animal viruses, especially rotaviruses. We have investigated the use of this solid phase IEM technique (SPIEM) in detecting and identifying enteroviruses (in the form of crude cell culture isolates), and have compared it with a modified “SPIEM-SPA” method in which grids are coated with protein A from Staphylococcus aureus prior to exposure to antiserum.

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