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State primary standard of refractive index GET 138-2021
https://doi.org/10.32446/0368-1025it.2022-5-4-9
Abstract
State primary standard GET 138-2021 of refractive index, his structure, principle of work, and the metrological characteristics are presented. The modernized standard provides uniformity of measurements of the spectral dependence and spatial distribution of the refractive index of solid and liquid substances in the extended wavelength range from 0.4 to 1.55 microns. The standard GET 138-2021 includes a dynamic goniometer-spectrometer with a ring laser, an autocollimation null indicator and a set of 12 replaceable light sources in the form of laser modules with fi ber output. High-precision and reliable refractometric measurements are necessary in the optical industry to increase the resolution of objectives and other optical devices. Also it is necessary to control the quality and composition of substances in the food, chemical and pharmacological industries.
About the Authors
G. N. Vishnyakov
All-Russian Research Institute for Optical and Physical Measurements; Bauman Moscow State Technical University
Russian Federation
Russian Federation
Gennady N. Vishnyakov
Moscow
V. L. Minaev
All-Russian Research Institute for Optical and Physical Measurements; HSE University
Russian Federation
Russian Federation
Vladimir L. Minaev
Moscow
S. S. Bochkareva
All-Russian Research Institute for Optical and Physical Measurements
Russian Federation
Russian Federation
Svetlana S. Bochkareva
Moscow
References
1. Tilton L. W., Prism Refractometry and Certain Goniometrical Requirements for Precision (Classic Reprint), Forgotten Books, 2017.
2. Storozhenko I. P., Timanyuk V. A, Zhivotova E. N., Metody refraktometrii i polyarimetrii [Methods of refractomertry and polarimetry], Khar’kov, Izd-vo NFAU Publ., 2012, 64 p. (In Russ.)
3. Konopel’ko L. A., Naidenov A. S., Shur V. L., Pinchuk O. A., Kolobova A. V., Kuz’min B. P., Krasavtsev M. V. Refraktometricheskie metody v fi ziko-khimicheskikh izmereniyakh [Refractometric methods in physical and chemical measurements], Ed. L. A. Konopel’ko, Moscow, Triumph publ., 2020, 208 p. (In Russ.)
4. Vishnyakov G. N., Levin G. G., Kornysheva S. V., Measurement Techniques, 2004, vol. 47, no. 11, pp. 1039–1043. https://doi.org/10.1007/s11018-004-0001-0
5. Vishnyakov G. N., Levin G. G., Kornysheva S. V., Zyuzev G. N., Lyudomirskii M. B., Pavlov P. A., Filatov Yu. V., Journal of Optical Technology, 2005, vol. 72, no. 12, pp. 929–933. https://doi.org/10.1364/JOT.72.000929
6. Vishnyakov G. N., Kornysheva S. V., Measurement Techniques, 2005, vol. 48, no. 11, pp. 1099–1102. https://doi.org/10.1007/s11018-006-0027-6
7. Vishnyakov G. N., Kornysheva S. V., Measurement Techniques, 2012, vol. 54, no.12, pp. 1372–1377. https://doi.org/10.1007/s11018-012-9898-x
8. Vishnyakov G. N., Fricke A., Parkhomenko N. M., Hori Y., Pisani M., Metrologia, 2016, vol. 53, 02001. http://dx.doi.org/10.1088/0026-1394/53/1A/02001
Review
For citations:
Vishnyakov G.N., Minaev V.L., Bochkareva S.S. State primary standard of refractive index GET 138-2021. Izmeritel`naya Tekhnika. 2022;(5):4-9. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-5-4-9
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