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Author Archives: Anonymous

Two piezoelectric crystals are made from the same material. …

Two piezoelectric crystals are made from the same material.  The thicker crystal will make a pulse transducer with a higher frequency. 

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The propagation speed for a round trip time of 39 µs is ____…

The propagation speed for a round trip time of 39 µs is _______ mm/µs.

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For short pulses, the quality (Q)factor is equal to:

For short pulses, the quality (Q)factor is equal to:

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Reducing the impedance difference between the crystal and th…

Reducing the impedance difference between the crystal and the skin is the primary function of which of the following transducer components?

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A pulse with a long pulse duration is likely to have a narro…

A pulse with a long pulse duration is likely to have a narrow bandwidth.

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Absorption of the sound beam is highest in :

Absorption of the sound beam is highest in :

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The sensitivity of transducers that create short duration pu…

The sensitivity of transducers that create short duration pulses is likely to be ________ that of transducers that create long pulses.

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Which of the following would define the beam’s intensity at…

Which of the following would define the beam’s intensity at the location where it is maximum? 

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Snell’s law determines the amount of:

Snell’s law determines the amount of:

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A pulsed wave transducer has a resonant frequency of 5 Mhz. …

A pulsed wave transducer has a resonant frequency of 5 Mhz.  The lowest frequency in the pulse is 2 Mhz and the highest is 8 Mhz.  What is the Q factor?

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