Real-time speckle shear photography using BaTiO3 for in-plane strain and displacement measurements at multiple wavelengths

1999 ◽  
Author(s):  
Mohammad H. Majles Ara ◽  
C. V. Vijayan ◽  
Nandigana K. Krishna Mohan ◽  
Rajpal S. Sirohi
Keyword(s):  
Real Time ◽  
Plane Strain ◽  
Multiple Wavelengths ◽  
Displacement Measurements

Atomic force microscope cantilevers as encoders for real-time forward and backward displacement measurements

2011 ◽  
Vol 22 (9) ◽  
pp. 094017
Author(s):  
Xiaomei Chen ◽  
Ludger Koenders ◽  
Helmut Wolff ◽  
Holger Neddermeyer ◽  
Frank Haertig
Keyword(s):  
Atomic Force Microscope ◽  
Real Time ◽  
Atomic Force ◽  
Displacement Measurements

Real-time absolute distance measurement by comb-based generation of multiple wavelengths

2012 ◽  
Vol 8 (5/6) ◽  
pp. 432
Author(s):  
Sangwon Hyun ◽  
Young Jin Kim ◽  
Byung Jae Chun ◽  
Seung Woo Kim
Keyword(s):  
Real Time ◽  
Distance Measurement ◽  
Absolute Distance ◽  
Multiple Wavelengths

scholarly journals Time forecast of a break-off event from a hanging glacier

2016 ◽  
Vol 10 (3) ◽  
pp. 1191-1200 ◽  
Author(s):  
Jérome Faillettaz ◽  
Martin Funk ◽  
Marco Vagliasindi
Keyword(s):  
Real Time ◽  
Power Law ◽  
Surface Displacement ◽  
Early Warning Systems ◽  
Warning Systems ◽  
Safety Measures ◽  
Periodic Oscillations ◽  
Ice Volume ◽  
Surface Displacements ◽  
Displacement Measurements

Abstract. A cold hanging glacier located on the south face of the Grandes Jorasses (Mont Blanc, Italy) broke off on the 23 and 29 September 2014 with a total estimated ice volume of 105 000 m3. Thanks to accurate surface displacement measurements taken up to the final break-off, this event was successfully predicted 10 days in advance, enabling local authorities to take the necessary safety measures. The break-off event also confirmed that surface displacements experienced a power law acceleration along with superimposed log-periodic oscillations prior to the final rupture. This paper describes the methods used to achieve a satisfactory time forecast in real time and demonstrates, using a retrospective analysis, their potential for the development of early-warning systems in real time.

scholarly journals Real-time dual-sensitive shearography for simultaneous in-plane and out-of-plane strain measurements

2019 ◽  
Vol 27 (3) ◽  
pp. 3276 ◽  
Author(s):  
Jie Dong ◽  
Shengjia Wang ◽  
Min Lu ◽  
Martin Jakobi ◽  
Zhanwei Liu ◽  
...  
Keyword(s):  
Real Time ◽  
Plane Strain ◽  
Strain Measurements ◽  
Out Of Plane

Slope stability analysis based on real-time displacement measurements

Measurement ◽  
2019 ◽  
Vol 131 ◽  
pp. 686-693 ◽  
Author(s):  
Huafu Pei ◽  
Siqi Zhang ◽  
Lalit Borana ◽  
Yi Zhao ◽  
Jianhua Yin
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Real Time ◽  
Slope Stability Analysis ◽  
Displacement Measurements

Towards a Novel Broadband Spectrally Dynamic Solid State Light Source

2005 ◽  
Vol 892 ◽  
Author(s):  
David Nicol ◽  
Shalini Gupta ◽  
Nola Li ◽  
Ali Asghar ◽  
Elton Graugnard ◽  
...  
Keyword(s):  
Solid State ◽  
Real Time ◽  
Light Source ◽  
Tunnel Junction ◽  
Light Emitting Diode ◽  
Contact Layer ◽  
Light Emitting ◽  
Wide Range ◽  
Multiple Wavelengths ◽  
Dynamic Source

AbstractThe developments of two major components of a three terminal dual wavelength LED for excitation of multiple phosphors are described. Such a configuration will be novel Broadband Spectrally Dynamic Light Emitting Diode (BSDLED). First, work towards a functional tunnel junction in the GaN system is discussed. The developments of p+ and n+ GaN layers are specifically discussed in relation to their use in a buried current spreading contact layer. Second, the analysis of several phosphors and their application in a spectrally dynamic source is explored. The response to multiple wavelengths of the phosphors is analyzed to create a light source that can be tuned in “real time” to a wide range of correlated color temperatures.

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