Dynamic grey model of verification cycle and lifecycle of measuring instrument and its application
Hai-tao Su , Shi-yuan Yang , Hua Dong , Mao-hu Shen
Journal of Central South University ›› 2005, Vol. 12 ›› Issue (2) : 86 -89.
Dynamic grey model of verification cycle and lifecycle of measuring instrument and its application
Two dynamic grey models DGM (1, 1) for the verification cycle and the lifecycle of measuring instrument based on time sequence and frequency sequence were set up, according to the statistical feature of examination data and weighting method. By a specific case, i. e. vernier caliper, it is proved that the fit precision and forecast precision of the models are much higher, the cycles are obviously different under different working conditions, and the forecast result of the frequency sequence model is better than that of the time sequence model. Combining dynamic grey model and auto-manufacturing case the controlling and information subsystems of verification cycle and the lifecycle based on information integration, multi-sensor controlling and management controlling were given. The models can be used in production process to help enterprise reduce error, cost and flaw.
measuring equipment / verification cycle / lifecycle / dynamic grey model / qualification rate / information system
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