The GBI300 sets the standard throughout the World in Gage Block Measurement by Interferometry. Over 25 Primary Calibration Laboratories in Europe, North and South America and Asia rely on NPL-Brown & Sharpe Gage Block Interferometers for their Primary Calibration of Gage Blocks.
ISO 3650 and ASME B89.1.9-2002 (K & 00 Grades) and Federal GGG-G-15C Grade 0.5 (AAA) Gage Blocks up to 300mm (12") in length can all be calibrated to the most exacting Measurement Uncertainties available. Uncertainty values starting at 0.020 micrometers (< 1 micro inch) are attainable.
Features
Dual wavelength measurement of the Gage Block for easier pre-classification of size
Two frequency stabilized laser light sources
Phase-stepping optical system for high precision length measurement and detailed analysis of Gage Block surface geometry
Large area interchangeable platens for optimum throughput
Full and automatic measurement and compensation for ambient conditions
Integrated and rapid Gage Block Flatness and Length Variation measurement
Automatic calculation and print-out of measurement results in inch or metric units
Flexible image processing software for measurement of rectangular and square (Hoke) Gage Blocks and round (British) Length Bars