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Xanfomality, L.V. and Ксанфомалити, Л.В. (1959) Систематические погрешности электронных приборов для определения степени поляризации света / Systematic errors of electric instruments for measure of light polarization. აბასთუმნის ასტროფიზიკური ობსერვატორიის ბიულეტენი / Bulletin of the Abastumani Astrophysical Observatory (24). pp. 175-178.
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Abstract
Usually polarization is measured as ratio of the a. c. voltage to the d. c. voltage at plate load of the photomultiplier. To prevent the appearance of the plate current rapid fluctuations many authors recommend to connect the condenser across the plate load resistance. When frequency of modulation of the light beam is made low enough and RC is also low errors of the ratio of the a. c. voltage to the d. c. voltage are often neglected. Nevertheless these errors may become of importance even at very low RC and frequency. For example use f=0.966 cps and RC = 0.12 sec (100,0 mΩ and 1200 pF) distorts tho reatio at 1,24 times. July, 1959
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Institutes > Evgeny Kharadze Abastumani National Astrophysical Observatory |
| Depositing User: | თამარ ჭაღიაშვილი |
| Date Deposited: | 03 Jun 2018 09:56 |
| Last Modified: | 03 Jun 2018 09:56 |
| URI: | http://eprints.iliauni.edu.ge/id/eprint/8077 |
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