Abstract
The tracer method using the tracer mixed oil paint in the volatile solvent was applied for the visualization of externally pressurized circular thrust gas bearing. The volatile solvent component evaporated within the tracer adhered in the bearing surface, and only the solute component remained in the bearing surface. The thickness shape of the tracer remained in the bearing surface was measured by laser focus displacement gage, and the adhesion position of the tracer was required based on the result. As the result, it was shown to be useful for this method measuring the tracer adhesion position with a high accuracy.
