guided wave


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guided wave

[′gīd·əd ′wāv]
(electromagnetism)
A wave whose energy is concentrated near a boundary or between substantially parallel boundaries separating materials of different properties and whose direction of propagation is effectively parallel to these boundaries; waveguides transmit guided waves.
References in periodicals archive ?
Tian, "Case study of guided wave propagation in a one-side water-immersed steel plate," Case Studies in Nondestructive Testing and Evaluation, vol.
For long-range guided wave inspection, the low frequency range is of primary interest from a wave attenuation point of view The frequency of 100 kHz is therefore selected in this paper.
The impacts of the crack width and fracture angle on the low order guided wave S0 and A0 amplitudes were studied in a three-layer model (soft tissue, cortical bone, and marrow) using the 2D-FDTD simulation.
where [lambda] is the length of guided waves, w is the angular velocity, k is the wave number, ] is the Bessel function, coefficients [[alpha].sup.2] = [[omega].sup.2]/[c.sup.2.sub.L], [[beta].sup.2] = [[omega].sup.2]/[c.sup.2.sub.T] - [k.sup.2], [c.sub.L] is the velocity of longitudinal guided wave, [c.sub.T] is the velocity of transverse guided waves, and [c.sub.P] is the phase velocity.
When geometry constraints are introduced and the dimensions are close to the wavelength, the wave becomes dispersive and is called a guided wave. Longitudinal, torsional, and flexural waves propagate in isotropic cylinders.
When establishing the finite element model, meshing is a very important step, and there is a high requirement on the mesh division for the finite element simulation of guided waves, in which the establishment of defect in the simulation model of the guided wave is one of the important issues.
Wilcox, "Practical long range guided wave testing: Applications to Pipes and Rail", Mat.
Overfill Capable Probes -- Magnetrol offers the only guided wave radar transmitter on the market with a complete line of overfill capable probes.
The guided wave technology screens 100 per cent of the volume of the piping inspected.
* Use the guided wave test as part of PHMSA 18-point process;
The Flexar[R] continuous level measurement system is a smart guided wave radar device used for monitoring the levels of powders, grains, and other food-related bulk solids.