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If the gauge block is known to be 0.75000 ± 0.00005 inch ("seven-fifty plus or minus fifty millionths", that is, "seven hundred fifty thou plus or minus half a tenth"), then the micrometer should measure it as 0.7500 inch. If the micrometer measures 0.7503 inch, then it is out of calibration.
The Birmingham gauge is also known as the Stubs Iron Wire Gauge or Birmingham Wire Gauge and is distinct from the Stubs Steel Wire Gauge and the British Standard Wire Gauge. It is commonly referred to simply as gauge (abbreviated as G ), [ 3 ] but this should not be confused with the French gauge , a separate system used for measuring the outer ...
The French scale, also known as the French gauge or Charrière system, is a widely used measurement system for the size of ... 14.7 4.67 0.18 15 15.7 5.00 0.20 16
thickness of deposited thin films rain gauge: measuring of rain radiometer: radiant flux of electromagnetic radiation refractometer: index of refraction rheometer: response to applied forces rotameter: pressure of a liquid or gas in a closed tube ruler: for measuring length saccharometer: amount of sugar in a solution seismometer
Bore gauge: a device used for measuring holes. Hole gauge [3] used to gage internal dimensions of bores that are either too small in diameter for an inside micrometer, and have greater economy than a bore gage or other precision internal gage. Caliper: a device used to measure the distance between two opposing sides of an object.
Some vendors who resell a different measuring instrument, bore gauge, muddy the waters by referring to them as snap gauges, [9] [10] unlike the manufacturer who uses the correct nomenclature. [11] Unlike a snap gauge, these measure inside (bore) dimensions, not outside dimensions, and are usually reset for each part measured.
Oxide thickness [1] MOSFET logic Researcher(s) Organization Ref; June 1960: 20,000 nm: 100 nm: PMOS: Mohamed M. Atalla, Dawon Kahng: Bell Telephone Laboratories [2] [3] NMOS: 10,000 nm: 100 nm: PMOS Mohamed M. Atalla, Dawon Kahng: Bell Telephone Laboratories [4] NMOS May 1965: 8,000 nm 150 nm: NMOS Chih-Tang Sah, Otto Leistiko, A.S. Grove ...
The scale is divided in half millimeters. Fine adjustments are made by means of a micrometer screw for taking accurate reading. Both vernier reading to 0.01mm or 0.02mm. Microscope tube consists of 10x Eyepice and 15mm or 50mm or 75mm objectives.