Patent ID: 11898926
Assignee: TECHNICAL MANUFACTURING CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  A  F | IPC A  G

Claim 9:
10. A method of inspecting a precision vibration-isolation tabletop, the method comprising:
automatically positioning an inspection head at a first location over the precision vibration-isolation tabletop;
obtaining an image of a portion of a surface of the precision vibration-isolation tabletop;
automatically imparting an impulse to the surface with an impact hammer;
receiving sensor information indicating an effect of the impulse on the surface;
automatically positioning the inspection head at a plurality of locations over the precision vibration-isolation tabletop;
measuring a plurality of distances to the surface from the inspection head at the plurality of locations over the precision vibration-isolation tabletop; and
determining a flatness of the surface based on the plurality of distances.