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A pair of scales: An instrument for measuring mass in a force field by balancing forces. Balance; Check weigher measures precise weight of items in a conveyor line, rejecting underweight or overweight objects. Inertial balance; Katharometer; Mass spectrometers measure the mass-to-charge ratio, not the mass, of ionised particles. Weighing scale
More recently, they have expanded their high-end metrology equipment including optical comparators, vision systems, laser measurement, force and material measurement testing. Starrett employs about 2,000 people worldwide, and the company claimed (as of 2008) to be the last remaining full-line precision tool company to be manufacturing their ...
Millers Falls Co. is a tool manufacturing company originally based in Millers Falls, Massachusetts. It was established in Greenfield, Massachusetts in 1868 as Gunn & Amidon [1] by Levi J. Gunn and Charles H. Amidon. [2] Gunn and Amidon, along with a third partner, Henry L. Pratt built a factory in the north of Greenfield. [1]
Adcole Corporation is a Massachusetts-based manufacturer of precision testing and measuring instruments.Addison D. Cole founded the company in 1957. [1] Adcole's core clients come from the aerospace and automotive industries.
Pages in category "Measuring instruments" The following 200 pages are in this category, out of approximately 375 total. This list may not reflect recent changes .
Then the mass is calculated from the weight by accurately measuring the local Earth's gravity (the net acceleration combining gravitational and centrifugal effects) with a gravimeter. Thus the mass of the object is defined in terms of a current and a voltage — allowing the device to "measure mass without recourse to the IPK ( International ...
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Although records dating to the 1700s refer to spring scales for measuring mass, the earliest design for such a device dates to 1770 and credits Richard Salter, an early scale-maker. [3] Spring scales came into wide usage in the United Kingdom after 1840 when R. W. Winfield developed the candlestick scale for weighing letters and packages ...
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