In this article, as in industry, advanced process control (APC) refers primarily to multi-variable control. Multivariable control means adjusting multiple single-loop controllers in unison, to meet ...

Figure 1. Shown is a graphical representation of the method of principal component analysis (PCA). Each principal component summarizes key features of the data while filtering out process noise. Â ...

New process device profiles have been added by ODVA to the EtherNet/IP specification to provide end users with another tool to help optimize plant operations. According to ODVA, the new process device ...

Increasingly tight tolerances and rigorous demands for quality are forcing chipmakers and equipment manufacturers to ferret out minor process variances, which can create significant anomalies in ...

Process analytical technology in biomanufacturing has undergone a fundamental transformation over the past two decades, moving quality control from the analytical laboratory to the manufacturing floor ...

In past columns, I've written about measurement of the key process variables in extrusion: Melt temperature, melt pressure and motor load . . . the vital signs. However, I shouldn't assume that all of ...

Process validation, controlled molding windows and traceability are redefining how critical plastic components are ...