Checkline TI-MVX - Manual (Page 2)

CHAPTER ONE: INTRODUCTION
The CHECK-LINE model TI-MVX is a visual A / B scan ultrasonic thickness
gauge. Based on the same operating principles as SONAR, the TI-MVX is
capable of measuring the thickness of various materials with accuracy as high
as ± 0.001 inches, or ± 0.01 millimeters. The principle advantage of ultrasonic
measurement over traditional methods is that ultrasonic measurements can be
performed with access to only one side of the material being measured.
CHECK-LINE maintains a customer support resource in order to assist users
with questions or difficulties not covered in this manual. Customer support may
be reached at any of the following:
■ ELECTROMATIC Equip’t Co. Inc.
■ Telephone: (800) 645-4330 or (516) 295-4300
■ Facsimile: (516) 295-4399
■ http://www.checkline.com
1.1 Disclaimer
Inherent in ultrasonic thickness measurement is the possibility that the instru-
ment will use the second rather than the first echo from the back surface of the
material being measured. This may result in a thickness reading that is TWICE
what it should be. Responsibility for proper use of the instrument and recognition
of this phenomenon rest solely with the user of the instrument.
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APPENDIX A -VELOCITY TABLE
Material sound velocity sound velocity
in/us m/s
Aluminum 0.2510 6375
Beryllium 0.5080 12903
Brass 0.1730 4394
Bronze 0.1390 3531
|Cadmium 0.1090 2769
Columbium 0.1940 4928
Copper 0.1830 4648
Glass (plate) 0.2270 5766
Glycerine 0.0760 1930
Gold 0.1280 3251
Inconel 0.2290 5817
Iron 0.2320 5893
Cast Iron 0.1800 (approx) 4572
Lead 0.0850 2159
Magnesium 0.2300 5842
Mercury 0.0570 1448
Molybdenum 0.2460 6248
Monel 0.2110 5359
Nickel 0.2220 5639|
Nylon 0.1060 (approx) 2692
Platinum 0.1560 3962
Plexiglas 0.1060 2692
Polystyrene 0.0920 2337
PVC 0.0940 2388
Quartz glass 0.2260 5740
Rubber vulcanized 0.0910 2311
Silver 0.1420 3607
Steel (1020) 0.2320 5893
Steel (4340) 0.2330 5918
Steel Stainless” 0.2230 5664
Teflon 0.0540 1372
Tin 0.1310 3327
Titanium 0.2400 6096
Tungsten 0.2040 5182
Uranium 0.1330 3378
Water 0.0580 1473
Zinc 0.1660 4216
Zirconium 0.1830 4648
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