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Nebulization control system for a piezoelectric ultrasonic nebulizer

  • US 4,319,155 A
  • Filed: 12/11/1979
  • Issued: 03/09/1982
  • Est. Priority Date: 01/09/1979
  • Status: Expired due to Term
First Claim
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1. A nebulization control system for an ultrasonic nebulizer, comprising:

  • a variable pulse oscillating circuit,an ultrasonic vibrating circuit, the vibration amplitude of which depends upon the output of said variable pulse oscillating circuit, andan ultrasonic vibrator which is energized by the output of said ultrasonic vibrating circuit,wherein said ultrasonic vibrator is caused to vibrate in alternation between a predetermined high amplitude level which is sufficient to nebulize fluid and a predetermined low amplitude level, greater than zero, which is at or near the maximum amplitude at which nebulization will not take place.

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