Description of goods: 1, the main function: 1, provides machine parts digital size detection equipment and special inspection tools, measuring the size of data transmitted via computer RS232 port for further processing; 2, provide a "statistical process control" SPC (Statistical Process Control) based software components can be measured on a number of dimensions Statistical analysis, the automatically generated "control chart", "histogram" and calculate the CP, CPK values, etc., in order to provide a basis of product quality. Second, the main purposes: 1, out to the students of statistical process control experiment, the establishment of process quality basic concepts of statistical analysis; 2, mechanical, industrial engineering students, "Quality Management", "Quality Engineering" and other programs to provide complete hardware and software experiments; 3, for the factories and enterprises in implementation of the "Statistical Process Control" SPC, to provide complete hardware and software. Third, the basic configuration: 1.capacitive, or inductive grating digital dial gauge micrometer; 2. RS232 interface circuit board; 3. measurement table seat accessories, special inspection tools; 4. Package VC + + 6.0 work platforms; Size of the workpiece automatic detection software; Workpiece size or simulation data for manual entry software; Process quality statistical analysis package (including control charts, histograms, process capability factor CP value, CPK value) 5. experimental guide books.