Reading Conversions - Cygnus M5-C2P Operating Manual

Cygnus 2+ Operating Manual
Stainless Steel 304
Stainless Steel 314
Stainless Steel 316
Tin
Titanium
Tungsten Carbide
Epoxy Resin
Acrylic
Nylon (Polyamide)

Reading Conversions

If only a few measurements are to be taken on a material other
than Steel, it may be easier to leave the calibration set for Steel
and merely convert the readings by multiplying by the
Conversion Factor for the material being measured.
This method avoids unnecessary recalibration.
Example.
The Gauge is calibrated for Steel [5920 m/s], but the reading is
being taken on Copper [4700 m/s] :
T = t x V
= t x 4700 / 5920
= t x 0.794
thus :
where :
The Conversion Factor f: is given for various materials in the
Table of Sound Velocities
60
5664
5715
5750
3320
6100 - 6230
6660
2500
2730
2620
/ V
COPPER STEEL
T = t x f
T = true thickness of Copper being measured
t = actual reading obtained
f = Conversion Factor (from table)
V = Sound Velocity in Copper : 4700 m/s
COPPER
V = Sound Velocity in Steel : 5920 m/s
STEEL
0.2229
0.2250
0.1163
0.1307
0.2402 – 0.2453
0.2622
0.0986
0.1076
0.1032
[ where: f = V
M5-CYG2P-M-01_Iss6.doc
0.956
0.965
0.971
0.561
1.030 – 1.052
1.125
0.422
0.461
0.443
/ V ]
COPPER STEEL