Apparatus for ultrasonic nebulization

Patent · Tue Aug 29 00:00:00 EDT 1978

OSTI ID:863164

Olson, Kenneth W ^[1]; Fassel, Velmer A ^[1]

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1. Ames, IA

An improved apparatus for ultrasonic nebulization of liquid samples or suspensions in which the piezoelectric transducer is protected from chemical attack and erosion. The transducer is protected by being bonded to the inner surface of a glass plate which forms one end wall of a first hollow body provided with apparatus for circulating a fluid for cooling and stabilizing the transducer. The glass plate, which is one-half wavelength in thickness to provide an acoustically coupled outer nebulizing surface, seals an opening in a second hollow body which encloses an aerosol mixing chamber. The second body includes apparatus for delivering the sample solution to the nebulizing surface, a gas inlet for providing a flow of carrier gas for transporting the aerosol of the nebulized sample and an aerosol outlet.

• Research Organization: Ames Laboratory (AMES), Ames, IA; Iowa State Univ., Ames, IA (United States)
• DOE Contract Number: W-7405-ENG-82
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4109863
• OSTI ID: 863164
• Country of Publication: United States
• Language: English

Related Subjects

apparatus
ultrasonic
nebulization
improved
liquid
samples
suspensions
piezoelectric
transducer
protected
chemical
attack
erosion
bonded
inner
surface
glass
plate
forms
wall
hollow
provided
circulating
fluid
cooling
stabilizing
one-half
wavelength
thickness
provide
acoustically
coupled
outer
nebulizing
seals
encloses
aerosol
mixing
chamber
delivering
sample
solution
gas
inlet
providing
flow
carrier
transporting
nebulized
outlet
liquid sample
liquid samples
sample solution
gas inlet
carrier gas
inner surface
piezoelectric transducer
improved apparatus
mixing chamber
chemical attack
glass plate
one-half wavelength
ultrasonic nebulization
half wavelength
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