ULTRASONIC DETECTION OF BUBBLES WITH DOPPLER FLOW TRANSDUCERS

Authors
  1. Nishi, R.Y.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Doppler blood-flow transducers have been used to detect gas bubbles in the circulatory system during hyperbaric decompression. The paper describes briefly the theoretical acoustic scattering properties of bubbles and describes various experimental procedures which have been used to determine the properties of these flow transducers. The capabilities and limitations of the transducers for the detection of bubbles were investigated. In vivo experiments indicate that it would be difficult to obtain any correlation between the output of these transducers and bubble size.
Report Number
RP-796 — Research Paper
Date of publication
01 Jan 1972
Number of Pages
7
Reprinted from
Ultrasonics, vol 10, 1972, p 173-179
DSTKIM No
73-00949
CANDIS No
17163
Format(s):
Hardcopy

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