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Nelson Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Microwave NDE Test Fixture Examples Craig E. Nelson –

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Presentation on theme: "Nelson Research, Inc. 2142 – N. 88 th St. Seattle, WA. 98103 USA 206-498-9447 aol.com Microwave NDE Test Fixture Examples Craig E. Nelson –"— Presentation transcript:

1 Nelson Research, Inc – N. 88 th St. Seattle, WA USA aol.com Microwave NDE Test Fixture Examples Craig E. Nelson – Consultant Engineer

2 Nelson Research, Inc – N. 88 th St. Seattle, WA USA aol.com When I got interested in microwave non-destructive and more-or-less non-contacting testing of porous silicon, I began to make up a variety of suitable test fixtures. These devices were assembled from bits and pieces of microwave hardware that were obtained piecemeal over time. Despite the home-brew nature of these devices, they worked fairly well.

3 Nelson Research, Inc – N. 88 th St. Seattle, WA USA aol.com X Band (8-12 GHz) Test Fixture for Planar DUT Samples Waveguide Transition Slide Screw Tuner 3 Port Circulator Tuned Diode Detector Aperture Table for Test Sample E Bend

4 Nelson Research, Inc – N. 88 th St. Seattle, WA USA aol.com X Band (8-12 GHz) Test Fixture for Planar DUT Samples Waveguide Transition Aperture Table for Test Sample 10 dB Bidirectional Coupler H Bend

5 Nelson Research, Inc – N. 88 th St. Seattle, WA USA aol.com Demountable 1 GHz Cavity Resonator with Sub-Wavelength Sensing Aperture Cylindrical Cavity Wall Sensing Aperture Small Cavity Excitation loop Cavity Base Assembly Cavity Top Plate

6 Nelson Research, Inc – N. 88 th St. Seattle, WA USA aol.com Collection of Broadband, Small Aperture Coaxial Hard-line Microwave Sensors Milled Aperture Aperture Table

7 Nelson Research, Inc – N. 88 th St. Seattle, WA USA aol.com Summary and Conclusions An interesting variety of practical microwave NDE Microwave Test Fixtures have been presented


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