Baker Gauges Other Engineering Applications - Flatness Measurement
Flatness of the surface
To check flatness of a surface of small parts like valve plates used in refrigeration and industrial hydraulics. This fixture is supplied in three table sizes: ˜150, ˜200 and ˜250 mm. The top surface of the table is ground to a high degree of flatness. Depending on the specific requirement, surface of the table can be lined with carbide strips to render more wear resistance. At the center of the table, an electronic probe is fitted with tip of the probeprotruding outside. When a component whose flatness is to be measured is slowly moved over the probe contact, variation in the readings is recorded, which is flatness.