Application measurement
EN
Copyright © Qingdao Hantek Electronic Co., LTD
HBT3000 series user manual
33
Figure 6-12 statistical indicators
Calculate and display the Average, Max, Min, Parent Standard Deviation, Sample
Standard Deviation, and Procedure Ability Index for up to 1000 measurement
data. The calculation formula is as follows:
⚫
The n in the formula represents the number of valid data.
⚫
Hi and Lo use the upper and lower limits of the comparator.
⚫
The process capability index refers to the ability to achieve process quality, which
can be understood as the degree of quality deviation and deviation that a process
has.
Generally, the values of Cp and Cpk can be used to evaluate process capability
(as shown below):
Cp, CpK>1.33...... Sufficient process capability
1.33
≥
Cp, CpK>1.00... Appropriate process capability
1.00 ZCp, CpK, etc. Insufficient process capability
Note:
