AEIndex.pdf

Overdetermined source location 131 134 overheated bus

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overdetermined source location, 131-134 overheated bus bar, in power transformers, 334-335 overheating, power transformers, 333 P parabolic dish, 186, 192 parabolic microphone, 194, 219 parameter analysis, 392 parametrics, 153 partial discharge, power transformers, 332, 333, 335 partial power features, 155 particle microfracture, 71-72 passive corrosion protection, detection of active corrosion under, 418-419 passive ultrasound leak testing, 186 pattern matrix, 158-160 pattern recognition, 47-50 eigenvector projection, 160-161 feature normalization and projection, 160-161 feature vector and pattern matrix, 158-160 knowledge representation, 48 and signal classification, 49, 157-166 supervised, 157, 161-164 training and testing, 48-49 training set, 157, 162, 163 unsupervised, 158, 164-166 Peacekeeper missiles, motor case monitoring during hydrostatic proof testing, 377-381 peak frequency, 154, 155 pekeris solution, 95 pencil break source, 36 for calibration, 55 overdetermined source location using, 133 source identification using, 143-145 penetrating radiation testing, 4, 5 personnel qualification and certification, 16, 18-20 for airborne ultrasound testing, 196-197 petroleum refinery equipment, ultrasound leak testing, 201 441 Index
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petroleum wells, acoustic emission monitoring of sand in, 408-414 phase changes, acoustic emission caused by, 13, 32 phase velocity, 89 piezoelectric ceramic transducers, 51, 52 sensitivity variation with frequency, 69 temperature effects, 54 pipelines acoustic emission testing, 284-289 acoustic leak testing, 220-225, 284-289 gas, 123, 182, 195, 284 ultrasound leak testing, 182 ultrasound leak testing of pressurized, 202 piping detection of active erosion corrosion in 316L stainless steel, 420 erosion corrosion of sanitary water, 418 high energy seam welded in power plants, 342-346 ultrasound leak testing of pressurized, 199-201 pistons, ultrasound leak testing, 182 pitting, detection of active in stainless steel, 415, 416 plane longitudinal waves. See longitudinal waves plane transverse waves. See transverse waves plastic deformation acoustic emission caused by, 32, 61-62 attenuation of acoustic waves, 90 crack growth model, 63-64 fracture criteria, 66 and microvoid coalescence, 72 plastic pipeline pneumatic testing, 286-287 plates acoustic emission modeling, 109-119 antisymmetric modes, 114-115 diffuse wave propagation in, 99 moment tensor analysis application, 400 noise from fracturing of mill scale, 43 slow cracking in bridges, 313-314 source location with UNS G43400 steel, 135-136 waveform based source location with carbon steel, 139-140 wave propagation in, 96-97, 110-113 PLB. See pencil break source pneumatic systems, ultrasound leak testing, 213 pneumatic testing, plastic pipeline, 286-287 poisson coupling, 52 Poisson’s ratio, 79 diffuse field mode conversion power coefficients for selected values of, 98 polyaramid epoxy, Peacekeeper missile application, 377, 378 polyethylene insulated conductor (PIC) ultrasonic probe, 215-216 polyvinyl chloride pipelines, pneumatic testing, 287 portable ultrasound leak detectors, 182, 195 power, of reflected waves, 88 power transformers. See transformers preamplifiers, 34, 35 acoustic emission transducers with integral, 51-52, 53 electromagnetic shielding, 44 for ultrasound leak testing, 186 use in digital signal processing, 150, 151
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  • Fall '19
  • Dune, Nondestructive testing, Acoustic Emission

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