| 1. | The result is a heterodyne beat frequency that indicates the velocity difference.
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| 2. | It is this beat frequency that is detected on the photodiode.
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| 3. | The audio tone is usually created by use of a beat frequency oscillator.
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| 4. | The beat frequency that results can induce frequencies that penetrate the ablation cloud.
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| 5. | The beat frequency oscillator was invented in 1901 by Canadian engineer Reginald Fessenden.
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| 6. | This beat frequency, detectable with a photodiode, is the carrier envelope offset frequency.
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| 7. | The horizontal black lines indicate the two lowest beat frequency measurements.
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| 8. | It doesn't, however, say how to calculate the beat frequency of binary pulses.
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| 9. | The following table lists the beat frequencies between notes in an equal temperament octave.
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| 10. | Wing beat frequency of free-flying individuals is 20 29 Hz.
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