Panasonic PV500 User Manual page 171

b) Maximum, minimum and average of measurement values
Calculates the radius, diameter or width using the edges detected by each cell. Then, calculates the maximum,
minimum and average values for the remaining data except the data judged as noises.
The criterion to judge data as noises is decided by "Denoising" function.
As the graph displayed on the screen (described below) shows the maximum and minimum values before
denoising, the values of the graph may be different from the output values.
About Denoising function: Page 179
c) Standard deviation
It is the value that the variation in values of
radius, diameter or width is quantified. It is
calculated by the formula mentioned on the
right.
This formula is for the case of "Detect
mode: Measure Radius".
For the case of "Measure Diameter" or
"Measure Width", replace the "Radius" in
the right formula with "Diameter" or
"Width".
The larger value indicates the greater variation.
d) Circularity
Detects the difference between the maximum radius and minimum
radius as circularity.
When Detect Mode is "Measure Diameter" or "Measure Width",
circularity is also calculated by detecting the radius, maximum radius
and minimum radius.
(However, when Detect Mode is "Measure Diameter" or "Measure
Width", the maximum radius and minimum radius are not displayed on
the screen.)
e) Maximum angle and Minimum angle
Angle between the base angle and the position
of the maximum/minimum value of radius,
diameter or width.
The base angle (Dotted line position in the right
figure) used for calculating angles is selectable.
Refer to page 177 for details.
The calculation method for "Standard Deviation" used for
Denoising function is different.
Example)
Max. diameter
angle
Min. width angle
Circularity
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