Conclusions
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1.
The method thus developed provides the highest precision of all existing methods for measuring diameters of holes (the error does not exceed 0.05μ).
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2.
The method can be applied for testing basic reference ring gauges, thus providing the upper link in the chain for transmitting dimensions from the reference standard to the diameters of holes in products.
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3.
It is possible and advisable to develop a system for transmitting the dimensions of cylindrical holes from reference standards to products by means of graded ring gauges with corresponding methods for their testing.
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4.
In order to adopt the above method in testing practice it is necessary to develop and produce several reference installations and to organize the manufacture of ring gauges made of quartz, pyroceramic, glass, or other transparent and sufficiently hard and stable materials.
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Literature cited
É. P. Yanushkevich, Izmeritel'. Tekh., No. 5 (1970).
É. P. Yanushkevich, Author's Certificate No. 203927, Byull. Izobr., No. 21 (1967).
N. R. Batarchukova, New Definition of the Meter [in Russian], Izd. Standartov, Moscow (1964).
N. R. Batarchukova and L. A. Irikova, Wavelengths of Monochromatic Sources of Light and Refractive Indices in Standard and Normal Air [in Russian], Izd. Standartov, Moscow (1968).
“Instruction 95-65 on the testing of reference 1000-mm block gauges of the 1st and 2nd grades, 2000-mm similar gauges of the 2nd grade, and 2000-mm class 0 working block gauges,” in: Testing of Block Gauges [in Russian], Izd. Standartov, Moscow (1966).
É. P. Yanushkevich, Izmeritel'. Tekh., No. 9 (1970).
Additional information
Translated from Izmeritel'naya Tekhnika, No. 10, pp. 22–25, October, 1970.
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Yanushkevich, É.P. Measurement of holes by the absolute interference methods. Meas Tech 13, 1500–1505 (1970). https://doi.org/10.1007/BF00978987
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DOI: https://doi.org/10.1007/BF00978987