A Survey of Selected Topics in Inverse Electromagnetic Scattering Theory

1997 ◽  
pp. 105-127
Author(s):  
David Colton
Keyword(s):  
Electromagnetic Scattering ◽  
Scattering Theory

Wetness and Efficiency Measurements in L.P. Turbines With an Optical Probe As an Aid to Improving Performance

1987 ◽  
Vol 109 (1) ◽  
pp. 85-91 ◽  
Author(s):  
P. T. Walters
Keyword(s):  
Electromagnetic Scattering ◽  
Scattering Theory ◽  
Light Transmission ◽  
Optical Probe ◽  
Steam Flow ◽  
Diagnostic Data ◽  
Absolute Value ◽  
Turbine Efficiency ◽  
Condensing Flows

An absolute value for the wetness fraction in a partially condensed steam flow may be calculated from measurements of light transmission using the results of fundamental electromagnetic scattering theory. A probe is described that uses this principle for measuring radial wetness profiles in the final stages of L.P. turbines. Results are presented to show that the probe will provide reliable values for overall L.P. turbine efficiency and valuable diagnostic data on the performance of individual stages operating with wet or condensing flows.

Wetness and Efficiency Measurements in L.P. Turbines With an Optical Probe as an Aid to Improving Performance

1985 ◽  
Author(s):  
P. T. Walters
Keyword(s):  
Electromagnetic Scattering ◽  
Scattering Theory ◽  
Light Transmission ◽  
Optical Probe ◽  
Steam Flow ◽  
Diagnostic Data ◽  
Absolute Value ◽  
Turbine Efficiency ◽  
Condensing Flows

An absolute value for the wetness fraction in a partially condensed steam flow may be calculated from measurements of light transmission using the results of fundamental electromagnetic scattering theory. A probe is described that uses this principle for measuring radial wetness profiles in the final stages of L.P. turbines. Results are presented to show that the probe will provide reliable values for overall L.P. turbine efficiency and valuable diagnostic data on the performance of individual stages operating with wet or condensing flows.

The linear sampling method in inverse electromagnetic scattering theory

2003 ◽  
Vol 19 (6) ◽  
pp. S105-S137 ◽  
Author(s):  
David Colton ◽  
Houssem Haddar ◽  
Michele Piana
Keyword(s):  
Electromagnetic Scattering ◽  
Scattering Theory ◽  
Sampling Method ◽  
Linear Sampling Method ◽  
Linear Sampling
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