Handbook of High Speed Photography - IET Labs, Inc.

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Rod mounted on spring shock mount vibrating on vibration table. Photograph at left under steady light shows amplitude of vibration. Photograph at right was taken with o single Strobotac flash. Photograph of label-inspection proc ess with label strip moving a! 1000 ft/min. Courtesy of Wyeth Labora tories, Inc. *wi3 •*/, 71
Combustion study of twin, oscil lating gas flames using schlieren technique and stroboscopic light. Reflector of Strobotac was re moved so that the flash lamp arc would approximate a point source of light. The parallel light rays produced by the schlieren technique refract differently as they pass through different re gions of the flame having dif ferent density gradients, thus producing light and dark areas in the photograph. Rate of flame pulsation was twelve cycles per second; rale of stroboscopic flashing was 200 per second. The succession of single images shown in the photograph at left was taken with a streak camera at constant film speed. Courtesy of Mr. ion Kelly, M.I.J. Engine Laboratory. An 8-inch circular-saw blade rotating at 3450 rpm. Left side of blade appears blurred due lo exposure un der steady light directed only at that side, while right side appears station ary, with minute surface scratches clearly defined, under Ihe 0.8-microsecond flash of the Strobotac. 72
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TABLE OF CONTENTS ACKNOWLEDGEMENT F
Page 5 and 6:
FOREWORD When I first heard about h
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Figure 1-2. A .22-calibre rifle bul
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Figure 1-4. Multiple-flash analysis
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From the measured distance between
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1.3 USING THE STROBOSCOPE WITH MOVI
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TYPE OF APPLICATION REQUIREMENTS Si
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2.3 FLASH INTENSITY VERSUS DURATION
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..«""*&&. 1 A Figure 2-2. Study of
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section 3 GENERAL RADIO STROBOSCOPE
Page 23 and 24:
Figure 3-2. Using the Stroboslave t
Page 25 and 26: 3.2.2 EXTERNAL TRIGGERING. The Stro
Page 27 and 28: The flashing rate of the 1538 Strob
Page 29 and 30: Type 1540-P4 Oscillator/Delay Unit.
Page 31 and 32: 100 — OF In CENT (PERO TENSITY 1
Page 33 and 34: XENON FLASHTUBE (STROBOTAC) 7000 AN
Page 35 and 36: 4.4 GUIDE NUMBER CHART. A guide num
Page 37 and 38: At extremely short camera-subject d
Page 39 and 40: the relative position of these mark
Page 41 and 42: Figure 4-8. Shock-wave photography
Page 43 and 44: 4.8 OPERATION OF CAMERA SHUTTERS AT
Page 45 and 46: The camera should not be loaded wit
Page 47 and 48: 5.2.2 MECHANICAL CONTACTS. Mechanic
Page 49 and 50: 5.2.3 OPTICAL PICKUP. The optical p
Page 51 and 52: chronization. For instance, the mot
Page 53 and 54: mine the proper attachment of the l
Page 55 and 56: must be set to "Bulb", the Strobota
Page 57 and 58: 5.3.2 OTHER SIGNAL PROCESSING DEVIC
Page 59 and 60: applications require the burst to b
Page 61 and 62: made with the same camera without r
Page 63 and 64: section 6 MOTION-PICTURE PHOTOGRAPH
Page 65 and 66: The subject image will appear to mo
Page 67 and 68: Section 6.4. Photo- and reluctance-
Page 69 and 70: BLADE HAS JUST CLEARED WINDOW TO ST
Page 71 and 72: HIGH-SPEED PHOTOGRAPHY has many use
Page 73 and 74: Use of dry-ice pucks on smooth, lev
Page 75: Spindle on a textile spinning frame
Page 79 and 80: Ropidly moving bubbles of hu man bl
Page 81 and 82: Spray pattern of diesel fuelinjecti
Page 83 and 84: \ Multiple-flash of golf ball just
Page 85 and 86: A pulsating, solenoid-actuated wate
Page 87 and 88: Edgerton, Harold E., "Shock-Wave Ph
Page 89 and 90: INDEX Acceleration 5, 79 Accuracy 1
Page 91 and 92: Type1531-AB STROBOTAC* ELECTRONIC S
Page 93 and 94: Type 1538-A STROBOTAC electronic st
Page 95 and 96: Type 1531-P2 FLASH DELAY synchroniz
Page 97: Type 1541 MULTIFLASH GENERATOR a tr
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