A Simple Circuit for Ultrasonic Interferomenter in Liquids(II) : Theoretical Considerations

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Other Title
  • 液体用超音波干渉計の簡単な一回路(II) : 理論的考察
  • 液体超音波干渉計の簡単な一回路-1・2-
  • エキタイ チョウオンパ カンショウケイ ノ カンタン ナ 1カイロ 1 2

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Description

Theoretical Analysis of the circuit described in the previous paper has been performed, particularly examining the influence of the transducer quartz on the frequency of oscillation. In the first place the theory of the Pierce circuit oscillator was generalized in taking the effect of the grid current also into consideration. Then the influence of the transducer quartz on the frequency of oscillation was examined by this theory. The frequency shift to be expected theoretically in our case proved to be less than 0. 04% of the frequency value, in good accordance with the experiment.

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