Abstract
The Proficorder described in this paper represents a major addition to available surface-measuring instruments. It provides data which are highly essential in the study of surfaces and the processes by which they are obtained. Its function is to reproduce, with appropriate magnifications, the actual profile of a considerable length of surface. It permits the study of individual irregularities as to size, shape, and relative position with respect to other irregularities. The instrument can be used to good advantage for inspection of production setups for waves and other surface characteristics. As an instrument for use in process engineering, it provides quantitative data for determining the effectiveness of steps taken to improve or obtain certain surface finishes in machining or grinding operations. As a laboratory instrument, the Proficorder supplies indispensable information to all those who are interested in determining the causes, effects, and characteristics of surface irregularities.
