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JOHANSSON MIKROKATOR.

[Audio] TheJohanssonMikrokatorisamechanicalcomparatorthatusesatwistedmetalstripforfrictionless,high-magnificationmeasurementofsmalldifferencesinlengthcomparedtoastandard. TheJohanssonMikrokatorisaTheJohanssonMikrokatorisamechanicalcomparatorthatusesamechanicalcomparatorthatusesatwistedmetalstripforfrictionless,twistedmetalstripforfrictionless,high-magnificationmeasurementofhigh-magnificationmeasurementofsmalldifferencesinlengthsmalldifferencesinlengthcomparedtoastandard.comparedtoastandard. OutlinetheadvantagesanddisadvantagesofJohanssonMikrokatorDetailtheconstructioncomponentsandtheirrolesinthecomparatorDescribetypicalapplicationswhereJohanssonMikrokatorismostusefulExplainhowtoproperlymaintainJohanssonMikrokatorforconsistentaccuracySummarizecommontroubleshootingstepsforJohanssonMikrokatorissues.

[Audio] Carl Edvard Johansson (1864–1943) was a Swedish inventor who revolutionized precision measurement by inventing the gauge block set, also called "Jo Blocks". He patented his gauge block concept in 1901 and founded C.E. Johansson AB, bringing precise standardization to industrial manufacturing worldwide. Johansson's system allowed gauge blocks to be combined for virtually any measurement needed, forming the basis for modern mass production and quality assurance. He worked closely with the Ford Motor Company in the United States, where Henry Ford valued his contributions so highly that Johansson joined Ford in Dearborn and helped spread his system throughout American industry. Johansson received many honors, including the Royal Swedish Academy of Engineering Sciences' large gold medal, and his techniques became a global foundation for precision engineering..

[Audio] HERE ARE THE KEY PARTS OF A JOHANSSON MIKROKATOR : Plunger: Acts as the detecting element and transfers small linear movements from the workpiece to the internal mechanism. Slit Washer: Provides flexible, frictionless support for the plunger and prevents its unwanted rotation during movement. Bellcrank Lever: Functions as a kinematic link, transmitting the plunger's motion to the twisted strip for amplification. Twisted Strip: Made generally of phosphor bronze, this flexible component magnifies displacement due to its twisting action and transmits it to the pointer. Pointer and Scale: The lightweight pointer, attached to the twisted strip, rotates to indicate measurement on a parallel scale for easy reading..

[Audio] The Johansson Mikrokator operates on a simple mechanical principle known as Abramson's movement, similar to a button spinning on a loop of string. Here's how the mechanism works: Detecting Motion: When the workpiece is placed, any difference in its size causes the vertical plunger to move up or down. Transmitting Movement: This vertical movement is transferred through an elbow to a bell crank lever, which acts as a kinematic link. Magnifying Displacement: The bell crank lever twists or untwists a thin, flexible metal strip (usually phosphor bronze) fastened between itself and a cantilever strip. Pointer Rotation: The twisting of this strip rotates a pointer (usually lightweight glass) placed in the middle of the strip, amplifying the movement. Reading Measurement: The pointer's rotation is read against a parallel scale, showing the precise dimensional difference from the standard.

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PRINCIPLE.

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