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A new BSO/fibre-optic voltmeter for measurement of AC voltage from 0 to 500 V has been successfully developed for practical use in various fields. This voltmeter has been given outstanding temperature stability of within ± 0.2% from −10°C to 85°C by using the electro-optic effect of a 4.7 mm-thick Bi12SiO20.
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Kuhara et al. (1982) studied this question.
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