The size and type of stylus used depends on the component and features to be inspected. The Institute uses a variety of styli for the myriad of measurements made for Gasoline and Diesel Engine Lubricants Department projects. The Institute's computerized Coordinate Measuring Machine facilitates the dimensional inspection of components. The Video-Scope Microscope combines a powerful microscope with an attached camera, video scope, and printer. The SwRI staff uses this device to check liners for surface scratches, cracks, and pitting.
Research includes studying the effect and correlation of blemished liners and oil consumption.
Images seen through the microscope can be printed instantaneously. A foot switch pneumatically positions the piston ring, and two measuring heads move up against the keystone side face. Two integral, inductive measuring probes separately measure the top and bottom keystone angles, and deviation, in minutes, from the gauge ring is digitally displayed. With the Goetze instrument, SwRI also performs 100 percent inspections by integral classifier units. Five different displays are available.