38
V1.0 September 2017
Sine of angle to degrees
∆
Y = (Base reading Sin
–
1
)
-
(Current reading Sin
–
1
)
Example
∆
Y = (0.08716 Sin
–
1
)
-
(0.17365 Sin
–
1
)
∆
Y = (5.000)
-
(10.000) =
-
5.000º
.
. .
Sine of angle to mm/m
Y = (Base reading Sin
–
1
)
-
(Current reading Sin
–
1
)
Example
∆
Y = (0.08716 Sin
–
1
)
-
(0.17365 Sin
–
1
)
∆
Y = (5.000)
-
(10.000) =
-
5.000º
Sin 5.000 = 0.08715
0.08715 x 1000
= 87.15mm/M
Readings from the IPI will be in sine of the angle
6.2 Data reduction contd...
