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- A Johansson Mikrokator (also called Abramson's movement) is a mechanical comparator used to obtain mechanical magnification of the difference in length as compared to a standard. It works on the principle of a button spinning on a loop of string. A twisted thin metal strip holds a pointer, which shows the reading on a suitable scale. Since there is no friction involved in the transfer of movement from the strip to the pointer, it is free from backlash. It was reportedly designed by Hugo Abramson in 1938. (en)
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- 2530 (xsd:nonNegativeInteger)
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- A Johansson Mikrokator (also called Abramson's movement) is a mechanical comparator used to obtain mechanical magnification of the difference in length as compared to a standard. It works on the principle of a button spinning on a loop of string. A twisted thin metal strip holds a pointer, which shows the reading on a suitable scale. Since there is no friction involved in the transfer of movement from the strip to the pointer, it is free from backlash. It was reportedly designed by Hugo Abramson in 1938. (en)
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- Johansson Mikrokator (en)
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