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CBSE Class 9 Answered

how ultrasonic waves detect the air bubble
Asked by | 16 Feb, 2012, 09:09: PM
answered-by-expert Expert Answer
•By far the most prevalent bubble sensing method.
•Uses piezoelectric materials to create ultrasonic waves
•Two main types:
–Continuous: transmits a continuous ultrasonic wave and detects the drop in wave amplitude through air.
–Pulsed Wave: transmits a pulsed wave and then detects both the amplitude and duration of the received wave to determine the medium.
?????The ultrasonic bubble sensor emits the ultrasounic wave into a fluid then senses wave reflected from the bubbles.
Answered by | 17 Feb, 2012, 03:36: AM

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