Page 46 - Lehrbuch Neigungsmessung deutsch 2018.indd

COMPENDIUM INCLINATION MEASUREMENT
WYLER AG, WINTERTHUR / SWITZERLAND

arc 
sin 

sin  tan  arc 
 = 0.5° 0.0087266 0.0087269 0.0087266
 = 45° 0.70711 1 0.78540
As can be seen from the above list, the values for sin , tan  and arc  up to an angle of 0.5° are identical
to six decimal places. When the angle (inclination) increases, the values diverge continuously.
360°
1 Rad = =57.30 degrees
2 x 
Important:
1 μRad = 1 μm/m
is only valid in the range of very
small inclinations (angles)

The International system of units, abbreviated SI (International System of Units)
Number Potency Unit SI prefix
0,000 000 000 000 000 001 10 Trillionth Atto
-18
0,000 000 000 000 001 10 Quadrillionth Femto
-15
0,000 000 000 001 10 Trillionth Piko
-12
0,000 000 001 10 Billionth Nano
-9
0,000 001 10 Millionth Micro
-6
0,001 10 Thousandth Milli
-3
0,01 10 Hundredth Zenti
-2
0,1 10 -1 Tenth Dezi
1 10 One
-0
10 10 1 Ten Deka
100 10 2 Hundred Hekto
1 000 10 3 Thousand Kilo
1 000 000 10 6 Million Mega
1 000 000 000 10 9 Billion Giga
1 000 000 000 000 10 12 Trillion Tera
1 000 000 000 000 000 10 15 Quadrillion Peta
1 000 000 000 000 000 000 10 18 Quintillion Exa
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