Oscillators – Electromechanical resonator – Crystal
Patent
1975-05-16
1976-08-31
Grimm, Siegfried H.
Oscillators
Electromechanical resonator
Crystal
331176, H03B 532
Patent
active
039784320
ABSTRACT:
A piezoelectric oscillator has two or more piezoelectric vibrator units connected in parallel. At least one said unit has a frequency-temperature characteristic of third degree and the others have characteristic of second degree so as to afford compensation in oscillation frequency in a wide temperature range.
REFERENCES:
patent: 1915368 (1933-06-01), Lack
Drucker William Anthony
Grimm Siegfried H.
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