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Filtering by: Subject Ultrasonic waves Academic Affiliation Chemistry

Ultrasonic dispersion in gaseous allene, ammonia and carbon suboxide observed by optical diffraction

Creator:

Hancock, James Kent

Resource Type:

Dissertation

Full Text:

Ultrasonic dispersion in gaseous allene, ammonia, and
Optical diffraction study of ultrasonic sound velocity in nitrous oxide and ammonia gases

Creator:

Strauch, Joseph George

Abstract:

The velocity of sound in gases was measured, using an ultrasonic wave train as a diffraction grating. The fundamental problems involved in the optical technique are discussed. An apparatus utilizing an objective lens of focal length 1.5 m and aperture f/20 was constructed and used at an ultrasonic frequency close...

Resource Type:

Dissertation

Full Text:

ultrasonic wave front, this equation can be written as a grating equation; i\sin0 = X , (38) in which