FIG. 9.2
Identifying the numerical values of the tic marks on a log scale.
10x 10x1
d1
d2
FIG. 9.3
Finding a value on a log plot.
102
7/16"
3/4" 103
FIG. 9.4
Example 9.5 .
On many log plots, the tick marks for most of the intermediate levels are left off because
of space constraints. The following equation can be used to determine the logarithmic level
at a particular point between known levels using a ruler or simply estimating the distances.
The parameters are defined by Fig. 9.3 .
Value = 10x * 10d1>d2 (9.9)