Nebulization control system for a piezoelectric ultrasonic nebulizer
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United States of America Patent
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-
Mar 9, 1982
Grant Date -
N/A
app pub date -
Dec 11, 1979
filing date -
Jan 9, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A nebulization control system for an ultrasonic nebulizer comprising a variable pulse oscillating circuit, an ultrasonic vibrating circuit and an ultrasonic vibrator is described. The ultrasonic vibrator is caused to vibrate alternatingly between a high level which is sufficient to nebulize a fluid and a low level which is insufficient to nebulize the same. The ratio of duration of the high level to the low level and/or the amplitude of vibration at the high level is variable. This arrangement permits a precise control of nebulization quantity and assists in the production of a fine, uniform mist of fluid.
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