A History of Engineering Metrology |
Contents
PIONEERS OF PRECISION | 11 |
EARLY STANDARDS | 17 |
MODERN STANDARDS | 32 |
Copyright | |
15 other sections not shown
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accuracy accurate adjustable America angle application beam became become Britain British calibration centre century Chapter checking comparator components continued course Coventry Department developed diameter direct dividing division early electronic engineering equipment errors established faces factory field fitted flat gauge blocks gear head idea improved inch indicator industry instrument interferometer International Johansson known Laboratory lapping later length lens light limit line standard London manufacture measuring machine mechanical ment method metre metrology micrometer microscope mounted moved needed observed obtained operation optical original parallel perhaps Physical pitch placed plate position precision principle problem production projection projector range reading realized reference Rolt ruled scale screw seen standard started steel surface Taylor thread took turned unit Watts wavelength weight Whitworth whole workshop World yard Zeiss