Search for dissertations about: "ultrasonic nondestructive testing"
Showing result 1 - 5 of 14 swedish dissertations containing the words ultrasonic nondestructive testing.
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1. Maximum a posteriori deconvulution of ultrasonic data with applications in nondestructive testing : Multiple transducer and robustness is
Abstract : In the thesis, various aspects of deconvolution of ultrasonic pulse-echo signals in nondestructive testing are treated. The deconvolution problem is formulated as estimation of a reflection sequence which is the impulse characteristic of the inspected object and the estimation is performed using either maximum a posteriori (MAP) or linear minimum mean square error (MMSE) estimators. READ MORE
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2. Modelling of ultrasonic testing for cracks near a non-planar surface
Abstract : Nondestructive testing using ultrasound has important applications in e.g. the nuclear power and aerospace industries, where it is used to inspect safety-critical parts for flaws. READ MORE
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3. On the modelling of ultrasonic testing using boundary integral equation methods
Abstract : Ultrasonic nondestructive testing has important applications in, for example, the nuclearpower and aerospace industries, where it is used to inspect safety-critical parts for flaws.For safe and reliable testing, mathematical models of the ultrasonic measurement systemsare invaluable tools. READ MORE
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4. Experimental Validation and Applications of a Phased Array Ultrasonic Testing Probe Model
Abstract : New manufacturing technologies are developed to facilitate flexible product designs and production processes. However, the quality of the final products should not be compromised. The assessment of product quality and integrity lies on various inspection methods. READ MORE
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5. Ultrasonic NDT in Defect Detection - Mathematical modelling
Abstract : This thesis is concerned with the mathematical modelling of the ultrasonic nondestructive testing situation. The first part of the thesis treats a simplified model of an ultrasonic transducer and its implementation into a T-matrix method-based solution to a crack scattering problem. READ MORE