FIFTH CANADIAN CONFERENCE ON NONDESTRUCTIVE ... - IAEA

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- 19 - absolute method of ensuring that eddy current instruments are able to respond in the correct manner. Normally we use test blocks having machined or electrical discharge machined (EDM) slots for this purpose. However, a number of unwanted effects can occur and these are: 1. Variations in slot depth from test block to test block 2. Variations in slot width from test block to test block, but also possible on the same block 3. Variations in test block material conductivity 4. Variations in probe impedance due to age, wear and probe type There are normally three positions of the probe which are critical to the calibration procedure: 1. Probe on a test block 2. Probe with a small lift-off 3. Probe over the calibration slot Using absolute values of inductance and resistance, we have devised an electronic reference unit which simulates these probe actions and test block variables, but without the need for either. Consider a probe on an aluminum test block. It will have an impedance Zl which can be represented by values of inductance LI and resistance Rl. There is also a dampening effect which is a function of resistance and is really an energy loss. When the probe is lifted off the material slightly, there will be an impedance change. In this case, the inductance will rise, the resistance will rise and the energy loss, or dampening, will be reduced. Finally, when the probe is over a machined slot, the inductance and dampening will increase, but the resistance will decrease. The electronic reference unit connects to the eddy current instrument through the normal probe connection and allows for simulation of the setting up procedure as well as for different materials and different test frequencies. It can be set up to simulate the response from a certain size slot. At a certain sensitivity level, we should obtain a certain meter deflection. This provides an opportunity for users to check and calibrate their Instruments and be confident the Instruments are performing and responding correctly. After doing this, then probes can be connected in the normal way and calibrated against standard test blocks in order to achieve the necessary sensitivity for the particular task in hand.
- 20 - (CJUIMTTCJW ROTOR BLADE SHOWING nrncu. pomion or ocncT TYPICAL POSITI<strong>ON</strong> OF DEFECT AND SCAN PATTERN Figure 1: Rotor blade showing typical position of defect and scan pattern. Voter Rc.iding F SO 00 50 \ TOR UH tVITH STANDARD PENCIL PROBE <strong>ON</strong> STAINLESS STEEL 2MHJ \ \6MHi \ \ \ \ \ \ \ \ A \\500KHz \ \ \ \ V \ \ \ \ \ \ \ \ \ 1 2 3 4 8 8 Distance of centre of probe from edge (mm) Figure 2: Edge effect of a standard probe on stainless steel at frequencies of 500 kHz, 2 MHz and 6 MHz.
Page 1 and 2: q 11 Atomic Energy of Canada Limite
Page 3 and 4: ATOMIC ENERGY OF CANADA LIMITED FIF
Page 5 and 6: CINQUIEME CONFERENCE CANADIENNE SUR
Page 7 and 8: iii ACKNOWLEDGEMENT A special note
Page 9 and 10: DAY 2 KEYNOTE ADDRESS: Advanced Rad
Page 11 and 12: DAY1 KEYNOTE ADDRESS: Five Years Ex
Page 13 and 14: MB Power has a total generating cap
Page 15 and 16: The fourth lesson learned was that
Page 17 and 18: STATION UNIT Coleson Cove Coleson C
Page 19 and 20: 0*'? - 8 - Ä | '••• '~-!.if~
Page 21 and 22: - 10 - 7/8 inch Titanium Tube 3D i
Page 23 and 24: The facility at CFB Greenwood was c
Page 25 and 26: CONDITION MONITORING - 14 - The Con
Page 27 and 28: - 16 - REDUCING UNWANTED EFFECTS ~
Page 29: - 18 - When this happens, the instr
Page 33 and 34: - 22 - Un»hl«ld«d prob* - good b
Page 35 and 36: STEEL FASTENERS EXAMINATION OF FAST
Page 37 and 38: - 26 - SKIP FINNED TUHt •< IG 5 I
Page 39 and 40: To gain primary statistical informa
Page 41 and 42: - 30 - The next step in the develop
Page 43 and 44: Each firing of the capacitor banks
Page 45 and 46: - 34 - At the Bruce we have complet
Page 47 and 48: 1 GARTER SPRING IN VERTICAL POSITIO
Page 49 and 50: DIGITAL READ OUT 3.595 TOIL ELEMENT
Page 51 and 52: - 40 - EVALUATION OF ULTRASONIC MET
Page 53 and 54: III MEASUREMENTS AND RESULTS - 42 -
Page 55 and 56: C Real defects - 44 - Here we repor
Page 57 and 58: Flaw Figure 1: Schematic of experim
Page 59 and 60: 0.5 E10 Q. 8 1.5 2.0 - 48 - Positio
Page 61 and 62: - 50 - Figure 6: Optical micrograph
Page 63 and 64: - 52 - specialized applications suc
Page 65 and 66: - 54 - As the probed surface is not
Page 67 and 68: - 56 - in practice the central frin
Page 69 and 70: - 53 - bipolar pulse, as it is seen
Page 71 and 72: - 60 - 18. J.-P. Monchalln and R. H
Page 73 and 74: Sample Lens Ultrasound - 62 - Detec
Page 75 and 76: CD CO c O Q. W 0 - 64 - Sin(7TfuT)
Page 77 and 78: - 66 - AUTOMATED ULTRASONIC TESTING
Page 79 and 80: - 68 - 2.1 Scanning Bridge and Imme
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- 70 - each waveform digitization t
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- 72 - Further development of the s
Page 85 and 86:
TRANSDUCER SELECT/ PULSE CONTROL -
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SCAIIIIING BRIDGE COLOUR GRAPHICS D
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Figure J — Beam profile of 3.5 MH
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- 80 - an additional reverse magnet
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- 82 - reinitialise the stress depe
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BAR MAGNET IDEAL FIELDS MEASURED FI
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- 86 - Figure 4: Hysteresis loops f
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-150 H= 1.6 kA/m COMPRESSION -100 -
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- 90 - MAGNETISATION ANHYSTERETÎC
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(b) 19 mm diameter o Hard spot 19mm
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Q. I CO zL 2 (Ky) TYPICAL UNCERTAIN
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- 96 - Figure 14: Conceptual M-H be
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- 98 - characterization program bas
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- 100 - 1. Planar transducer: l.a.
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Fig. 1 1/JS - 102 - Echos observed
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- 104 - CAPABILITIES/LIMITATIONS OF
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- 106 - V = f* - 0.9 ak N [2] h. /^
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DISCUSSION - 108 - The results of t
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- 110 - FIGURE 1: Equipment Used fo
Page 123 and 124:
FIGURE 4: - 112 - 5 10 IS 10 Depth
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FIGURE 6: Output of Computer Modell
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- 116 - "Events on earth consist in
Page 129 and 130:
- 118 - now _n = Af (5) n where Af
Page 131 and 132:
- 120 - REFERENCES 1. J.K. Feiblema
Page 133 and 134:
PULSER IMMERSION TRANSDUCER WATER ^
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- 124 - 6. Ultrasonic frequency spe
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i I 1 i l - 126 - —j 10. Ultrason
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TIME RNFOSIS PLOT CRSF: - 128 - 1H.
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- 130 - THE INTRODUCTION OF REAL-TI
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5. QUALIFYING THE IMAGE - 132 - In
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- 134 - CONVENTIONAL FILM RADIOGRAP
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- 136 - 11.3 Computer Management of
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- 138 - Back end of system. The com
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- IAO - to be loaded properly into
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20. OPERATIONAL UTILIZATION - 142 -
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% -•'v/ FILM AND SCREENS ' \ INSI
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- 146 - By design, these A/E monito
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- 148 - a) enables an A/E monitor s
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- 150 - OTHER . CHANNELS CONVENTION
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DAY 2 KEYNOTE ADDRESS: Advanced Rad
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- 152 - ADVANCED RADIOGRAPHY FOR TR
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- 154 - for light weight and resist
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- 156 - available. Application exam
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- 158 - 28. V.J. Orphan, Science Ap
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CROSS SLIDE - 160 - AXIAL DRIVE : 3
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- 162 - Fig. 4. Two neutron radiogr
Page 177 and 178:
INTRODUCTION (Continued) - 164 - Pr
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- 166 - SENSITOMETRIC QUALITY CONTR
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- 168 - MAKING THE TRANSITION TO AU
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(Continued) - 170 - The primary mec
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UJNXKAST o Indicated: o Calculated:
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- 174 - F»LM_i5=l£B_ DATE22=22=ß
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- 176 - RECENT MICROFUCUS X~RAY IMA
Page 191 and 192:
ABSTRACT - 178 - WET CHANNEL INSPEC
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- 180 - 5) an eddy current probe to
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- 182 - tube, say 0.5-1.0 metre, so
Page 197 and 198:
ACKNOWLEDGEMENTS - 184 - Many peopl
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- 186 - TABLE 3 Operational Objecti
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Pressure Tube Fuel -Carter Spring S
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«AC UUSU«O«HII INCUMKTM - 190 -
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Inlet or Outlet £nd Outlet 2m - 19
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- 194 - AN ADVANCED HEAT EXCHANGER
Page 209 and 210:
- 196 - storage terminal. However,
Page 211 and 212:
2.4 Data Processing Subsystem 2.4.1
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- 200 - display parameter set could
Page 215 and 216:
5. PLAYBACK - 202 - A tape playback
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" * 0 0 MOkE* i SUN! SOW A 1 3* ~V
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SLHHT POU 422/14 - 206 - x •* F-R
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- 208 - The recent failure of a Zir
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- 210 - probe in its operating envi
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- 212 - The eddy current and wall t
Page 227 and 228:
6. SUMMARY - 214 - The failure of a
Page 229 and 230:
+2.5%p Lift Off •* - 216 - +5% Wa
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0 -0.2 -0.4 -0.6 -0.8 -1.0 c .1 2 o
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0 -0.25 -0.50 -0.75 -1.00 -1.25 i 1
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- 222 - CHECKING FOR CRACKS IN GAS
Page 237 and 238:
- 224 - on the fringes. (The sensit
Page 239 and 240:
Figure 1 18 MW gas turbine rotor, p
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- 228 - Figure 3 Weak penetrant ind
Page 243 and 244:
- 230 - Figure 7 All signals superi
Page 245 and 246:
- 232 - Figure 11 Frequency respons
Page 247 and 248:
- 234 - row 3 sent to 0 4 n 1Vor?d.
Page 249 and 250:
1. INTRODUCTION - 236 - In-service
Page 251 and 252:
- 238 - treatment, and bending are
Page 253 and 254:
- 240 - With an AC coil surrounding
Page 255 and 256:
- 242 - against magnet position, tr
Page 257 and 258:
6. SUMMARY - 244 - Conventional edd
Page 259 and 260:
10 1 Centre Magnet 2 Keepers 3 End
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A - II' Concentric Groove 0.1 mm de
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- 250 ON THE RELATION BETWEEN ULTRA
Page 265 and 266:
- 252 - Following a brief descripti
Page 267 and 268:
CONCLUSION - 254 - In order to veri
Page 269 and 270:
- 256 - 13. R.L. Smith, F.L. Rusbri
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Ultrasonic Instrumentation - 258 -
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100 a (m" 1 ) 10 f Slope = 4 10 - 2
Page 275 and 276:
- 262 - ACOUSTIC EMISSION TESTING O
Page 277 and 278:
- 264 - Metal components with class
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- 266 - Any recognizable fibre dama
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- 268 - FIGURE 1 EXPULSION OF FIBRE
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100 95 LU LU 5 S 90 ^"-85 K H H 80
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- 272 - FIGURE 6 SENSORS AND PREAMP
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900 800 700 i/> 600 H Z O 500 U 400
Page 289 and 290:
- 276 - ACOUSTIC SORTING OF GRINDER
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- 278 - 6e P = Po c - St or p = p0
Page 293 and 294:
- 280 - (9) for hardened steel. All
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- 282 - but not reseted, so the com
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- 284 - GOOD CRACKED 0 2 4 6 8 0 2
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0 - 286 - Figure 5: Resonance frequ
Page 301 and 302:
- 288 - GOOD 0 .8 1.6 2.4 3.2 Level
Page 303 and 304:
- 290 - THE BENEFITS OF NDT TRAININ
Page 305 and 306:
- 292 - C.S.N.D.T. Chapters continu
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- 294 - The groundwork is in place.
Page 309 and 310:
- 296 - The graduates of these prog
Page 311 and 312:
- 298 - CERTIFICATION OF NONDESTRUC
Page 313 and 314:
- 300 - (e) A differing but persist
Page 315 and 316:
250 200 150 100 50 Magnetic Particl
Page 317 and 318:
LOOKING INTO THE FUTURE R.S. Sh.an.
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- 305 - Another 'near future 1 need
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- 307 - NDE OF STRUCTURAL CERAMICS
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- 309 - The system described in thi
Page 325 and 326:
and - 311 - S = a 2j for XR>a (2) S
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TRANSCEIVER digital signal display
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m "O -30 z o Ul -40 u. Ul ce o o Ü
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- 317 - deep penetration in same fo
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- 319 - the density by »w3 to 7%.
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density 10 3 kg/m 3 dissipation fac
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(0 60 g40 «MM "5. 3 O ü Cö §20
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60 PZT7 Vp " - 325 - o A —polariz
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- 327 -
Page 343 and 344:
- 329 - Fig. 8: Typical Outputs of
Page 345 and 346:
- 331 - ULTRASONIC ANALYSIS OF VOID
Page 347 and 348:
- 333 - function is approximated by
Page 349 and 350:
PULSER/RECEIVER OSCILLOSCOPE SPECTR
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to •a I a. a Ê £ < IS i-o 00 -
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Figure 5: Frequency spectra from: (
Page 355 and 356:
- 341 - 100 150 Void Diameter (jjm)
Page 357 and 358:
- 343 - TIME (ns) Figure 9: Peak ti
Page 359 and 360:
- 345 - COMPUTER SIMULATION OF ULTR
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pu = T XX + T Xy tt x y pV = T Xy +
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- 349 - linear system of equations
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- 351 - These boundary conditions a
Page 367 and 368:
10. EXAMPLE - 353 - The following e
Page 369 and 370:
3 "/A ! - 355 - 1 I 2 I Figs. 1-4.
Page 371 and 372:
INTRODUCTION - 357 - The inspection
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- 359 - A 3 by k array was construc
Page 375 and 376:
INVERSION PROBLEM - 361 - The inver
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- 363 - the right of coils 1 to 6,
Page 379 and 380:
—- ••;•••• 'IM i lüi
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- 3hl 2 3 4 OISTANCE (mm) Figure h.
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- 369 - a) 0.080 X 0.010 X 0.004" 5
Page 385 and 386:
- 371 - DISTANCE ;,n(m) Figure 9b
Page 387 and 388:
- 373 - INTRODUCTION X-ray diffract
Page 389 and 390:
and - 375 - e a -^(a + a ) + —-
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- 377 - The commercial prototype is
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- 379 - REFERENCES 1) Klug, H.P. an
Page 395 and 396:
- 381 - incident x-ray beam diffrac
Page 397 and 398:
- 383 - Fig. 5(a). 200 W X-ray tube
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- 385 - Fig. 7. Head of the commerc
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- 387 - APPLICATIONS OF NEUTRON DIF
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peaks which are easily measurable.
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- 391 - directions around the circu
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I.-3 TRIPLE-AXIS NEUTRON SPECTROMET
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Ad hki£ d hkil xlO 3 - 395 - INTER
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- 397 - Fig. 5 Longitudinal, tangen
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I - INTRODUCTION - 399 - Polyethyle
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- 401 - This together with the expr
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- 403 - (5v/v)fit must be considere
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Transducer Signal - 405 - P.E.(p.v)
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ü .CO ü m O o CÖ g •4—> Q 2.
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- 409 - The present study was carri
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- 411 - Since tomographlc Images ar
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- 413 - bore axis, were scanned. Th
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- 415 - normally measured with a sh
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(a) L (b) ic) 1 - 417 - •HwK- |3A
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Figure A : Orientation of the casti
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- 421 - APPENDIX A Determination of
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ÜJ I/) 1 ce TO PE/ a. 100 90 - 80
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- 425 - This paper will concentrate
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- 427 - Ultrasonic and radiographie
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- 429 - A micrograph of the laminat
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- 431 - 2. Holography requires disp
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- 433 - 10. Green, D.R., Schneller,
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- 4 35 - Fig. 2 (a): cross-section
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10 _ 0.1 1_ 0.01 0.1 1 - 437 - TIME
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• •' '
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HEATING PULSES DETECTOR " -—FILTE
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- 443 - 5 10 POSITION (mm) Fig. 10
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- 445 - MATERIALS EFFECTS ON ACOUST
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- 447 - orientation of these specim
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- 449 - determined experimentally f
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STRUCTURE •^ TRANSDUCER (S) - 451
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- 453 - 500 PRESSURE (KPO) LEAK DIA
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Caron, V. Energy Mines & Resources
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Mclntyre, Dent Babcock & Wilcox Can
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ISSN 0067-0367 To identify individu
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FIFTH CANADIAN CONFERENCE ON NONDESTRUCTIVE ... - IAEA

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