FIELD: measurement technology. SUBSTANCE: differential frequency pickup has first and second electromechanical resonators 1, 2, single-channel amplifier 3, first and second commutators 4, 5, timer 6, former 7 of signals of difference frequency. EFFECT: increased precision by compensation of phase instability of feedback amplifier. 1 dwg
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Authors
Dates
1995-08-09—Published
1991-04-02—Filed