Magneto-optic Imaging (MOI) is a non-destructive evaluation technique that is being used increasingly in aircraft inspection. In order to address the problem of interpreting a large volume of inspection data and subjectivity of manual interpretation, this paper presents an automated rivet inspection algorithm that performs filtering, rivet detection, and classification using MOI. The algorithms...

Nowadays sustainability for both old and new buildings becomes more and more important. Therefore non-destructive test methods are of high interest. Non-destructive test methods are used for quality control of construction materials, inspection and analysis of materials or structures and are used for continuous monitoring of large constructions. A multitude of characteristic values of building ...

Many of the physical phenomena, like friction, backlash, drag, and etc., which appear in mechanical systems are inherently nonlinear and have destructive effects on the control systems behavior. Generally, they are modeled by hard nonlinearities. In this paper, two different methods are proposed to cope with the effects of hard nonlinearities which exist in friction various models. Simple inver...

Determining the compressive strength of concrete is important in all phases construction and diagnosing technical condition existing reinforced buildings facilities during their service. In this article, author presents experimental results from research conducted over 6 years. The following non-destructive methods were used tests—elastic rebound, ultrasonic, SonReb destructive methods, latter ...