Buried metal detection within the wooden block by X‐band measurements

Abstract

In this article, Electromagnetic(EM) measurements campaign in controlled environment (antenna measurement laboratory) carried out to test, theories on EM bistatic scattering from buried metal detection has been presented. Both background signal subtraction algorithms and image processing techniques were applied. For each measurement, the brilliant area (BA), the ratio of pattern area(containing only non‐zero points) to the total scan area, has been calculated and formula relating BA with the width of the block, which is the distance from the front face of the block to the location where the metal is embedded, has been established. An average absolute error between calculated BA and measured BA is varying between 2.38% and 4.3%. We generated and proposed a mathematical model for estimating embedded depth, and measurement results are in good track with real one. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1245–1253, 2016

Investigation of the Moisture Content Effect on Dielectric Parameters in Peach and Quince Leaves

“…Dolayısıyla hem flanş hem de bu plastik camların dielektrik ölçüm üzerindeki etkileri giderilmelidir. Bu durumun literatürdeki yöntemlerle [20] uyumlu olmasına dikkat edilmelidir.…”

Defect measurement using the laser ultrasonic technique based on power spectral density analysis and wavelet packet energy

“…1 However, traditional NDE methods using magnetic particles, eddy currents, and penetrant testing have various limitations, especially in hazardous testing environments involving high temperatures and pressures, strong corrosion, or radioactivity. 2,3 The laser ultrasonic technique (LUT) realizes NDE by exciting an ultrasonic far-field with a laser pulse beam and using sonic wave transmission and reflection to identify defects in materials. 4 LUT has features such as remote application, broadband response, and high sensitivity and resolution, but can suffer from detectability issues and quantification difficulties in the presence of poor signal to noise ratios (SNRs).…”

“…The health monitoring and quantitative nondestructive evaluation (NDE) of materials are critical in the fields of industrial production, aerospace, and civil infrastructure 1 . However, traditional NDE methods using magnetic particles, eddy currents, and penetrant testing have various limitations, especially in hazardous testing environments involving high temperatures and pressures, strong corrosion, or radioactivity 2,3 . The laser ultrasonic technique (LUT) realizes NDE by exciting an ultrasonic far‐field with a laser pulse beam and using sonic wave transmission and reflection to identify defects in materials 4 .…”

Uzaktan Algılama Sistemleri için Elma ve Armut Yapraklarının Dielektrik Parametrelerinin Ölçülmesi ve Modellenmesi

“…Dolayısıyla hem flanş hem de bu plastik camların dielektrik ölçüm üzerindeki etkileri giderilmelidir. Bu durumun literatürdeki yöntemlerle[25] uyumlu olmasına dikkat edilmelidir.Gömülü yöntemlerin yanı sıra, dielektrik ölçümlerde oluşabilecek hataları en aza indirmek için farklı türde kalibrasyon yöntemleri vardır. Bunların arasında Doğrudan Yansıma Hattı Yöntemi, yaygın olarak kullanılan ve doğru sonuçlar veren bir yöntemdir…”