Distance coded reference marks ( DCRM ) are placed onto the scale in a unique pattern allowing a minimal movement ( typically moving past two reference marks ) to define the readhead's position.
22.
A triangulation station was often surrounded by several ( usually three ) reference marks ( see second photo at left ), each of which bore an arrow that pointed back towards the main station.
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Technically, the term " bench mark " is used only to refer to survey markers that designate a certain elevation, but hobbyists often use the term benchmarks to include triangulation stations or reference marks.
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It is also possible to true a wheel while it is mounted on the bike : brake pads or some other fixed point may be used as a reference mark, however this is less accurate.
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Indeed, the absence of common reference marks is part of the point : part of Babbitt's essentially American sense of himself as an artist who must find a new alternative to the techniques of Europe.
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:Thank you-- I think I understand and will give it a try . ( put reference marks in the body of text-- not in reference section without numbers ) talk ) 23 : 25, 4 September 2015 ( UTC)
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Multiple, equally spaced reference marks may also be placed onto the scale such that following installation, the desired marker can either be selected-usually via a magnet or optically or unwanted ones deselected using labels or by being painted over.
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The page titled How do matrix sites operate within the law ? " is linked from within the legality section as reference mark 7, within the comment, " " The U . K . Office of Fair Trading, however, has determined some of the sites to have been operated illegally.
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GEOPHYSICAL JOURNAL INTERNATIONAL Volume : 178 Issue : 2 pp 638-650 AUG 2009 ( 1985 ); Reference Marks & Cheung . " It is shown that the GSE is well-posed if 0 < | det [ H ( k ) ] | < 8, where H is the expansion matrix ( described below in eq . 1 ), and k is the wavevector . . ."