NDC BenchMike Pro 2025, Инструкция по эксплуатации

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1-6 BenchMike Pro Instruction Handbook: Introduction
1.6 Data Processing and Display
The BenchMike Pro allows you great flexibility in controlling the way data is displayed and processed. As de-
scribed in the
Advanced Capabilities section, there are several parameters which can be used to control the aver-
aging of measurements, the number of digits displayed on the screen, the format of printed reports, etc. The
BenchMike Pro has been specifically designed to allow you to customize your measurement display and data
processing simply and for your specific needs and preferences.
Each sweep of the laser beam across the measurement area is called a scan, and the BenchMike Pro scans the
part 100 times per second. Scans are collected to compute a reading for a given sample. The Averaging Rate
parameter determines how many scans (or time length in seconds) are averaged to compute one reading.
Although each scan received from the BenchMike Pro includes enough information to compute a size value, ac-
curacy and repeatability are increased significantly if a number of scans are collected and averaged. Scans can
be taken of individual samples or continuous products, as defined on the
Measurement Setup page. For individual
samples, an Averaging Rate value of 200 scans is typical. For continuous products, an appropriate value should
be determined experimentally for the particular application.
The average of all the readings taken during a batch is calculated,
along with the standard deviation. The standard deviation is a
measure of how the individual sample values varied during the
batch. The standard deviation value indicates whether samples
were evenly distributed over a wide range of values or whether most
samples were grouped around the average value. The diagram to
the right shows two sample normal distributions.
The drawing to the right shows a normal distribution of data. A nor-
mal distribution is one in which 99.73% of all
values fall within ±3 standard deviations of
the average.