scholarly journals The problem of detecting corrosion by an electric measurement revisited

2016 ◽  
Vol 9 (3) ◽  
pp. 643-650
Author(s):  
Mourad Choulli ◽  
Aymen Jbalia
Keyword(s):  



Vacuum ◽  
1963 ◽  
Vol 13 (12) ◽  
pp. 509-511 ◽  
Author(s):  
R. Jaeckel ◽  
B. Wagner


2018 ◽  
Vol 225 ◽  
pp. 57-61 ◽  
Author(s):  
P. Maneesha ◽  
Anju Paulson ◽  
N.A. Muhammed Sabeer ◽  
P.P. Pradyumnan


1981 ◽  
Vol 24 (11) ◽  
pp. 1053-1058 ◽  
Author(s):  
D. Sebille ◽  
O. Bonnaud ◽  
J.P. Chante


1934 ◽  
Vol 46 ◽  
pp. 221
Author(s):  
C. M. Huffer ◽  
A. E. Whitford
Keyword(s):  


1931 ◽  
Vol 4 (6) ◽  
pp. 559-564 ◽  
Author(s):  
Wallace A. Thomson

A method is described by which illumination intensities were measured by a photo-electric cell and galvanometer, and a continuous photographic record obtained of the variations of intensity over a period of time during which the ground was covered with snow.It was found that a remarkable increase in the illumination was caused by the presence of cloudiness with full sunshine. The percentage increase due to this condition in many cases was 20–30%, and on one occasion it was as high as 40%.When there was a cloud over the sun, with most of the sky clear, the decrease in illumination was found to vary up to 35%, depending on the density of the cloud, and on many occasions it was observed that the increase in indirect illumination due to overhead cloudiness more than balanced the decrease of direct illumination when the sun was partly hidden. From this it is concluded that the intensity may be greater with the sun partly hidden than at the same time of day with a clear sky.



2012 ◽  
Vol 229-231 ◽  
pp. 1252-1255
Author(s):  
Pei Feng Zhao ◽  
Xu Zheng ◽  
Dao Shun Wang

This paper study an method of extension the range of gas- electric measurement. Using the effection of the high speed air flowing into the throttle orifice make out an wide rang and not be affected by the fluctuation of the gas source pressure gas-electrical measurement .The measured value of using the differential pressure sensor is greater than the value of the gas source pressure, effectively increase the effective rang. C8051F350 microcontroller with built-in 24-bit resolution AD converter, 18b20 temperature sensor, RS485 bus, and industrial computer are used to make of measuring and controlling system .



2007 ◽  
Vol 2007 (0) ◽  
pp. 129-130
Author(s):  
Tadao HARAGUCHI ◽  
Junichi KASIWAGI ◽  
Hirosi KAWASAKI


2011 ◽  
Vol 687 ◽  
pp. 407-410
Author(s):  
Chao Ju ◽  
Dong Yu Xu ◽  
Zong Zhen Zhang ◽  
Shi Feng Huang

The piezoelectric ceramics Pb0.94Sr0.06(Zr0.53Ti0.47)O3+(Ni2O3+Cr2O3)0.1wt% + x wt%MnO2 + y wt%CeO2 (abbreviated as PCrNi-4) were prepared by a traditional ceramics process in this paper. The influences of MnO2 and CeO2-doping and sintered temperature on matrix material properties were studied by orthogonal tests. The effects of different inducing factors on the microstructure and dielectric loss were analyzed by means of XRD, SEM and electric measurement. The results indicate that the optimum process conditions are w(MnO2)= 0.1%, w(CeO2)= 0.3% and the sintering temperature 1280°C. The property parameters of samples are: d33=304.8pC/N, Kp=0.6113, εT33=1520, tanδ=0.00289, d33×g33=61.12×10-12CVm/N.



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