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Abstract
This article describes a direct-writing pneumotachograph which can be applied to recording
visible pneumotachograms on a continuous recording electronic unit. The output of
the pneumotachograph could also be fed into other types of rapid response ink writers
or recorders. The unit makes use of the electromechano transducer, the RCA No. 5734
tube, and gives satisfactory frequency response and linear displacement with air flow
as required for pneumotachography. Other applications for biologic work are under
investigation.
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References
- Respiratory Air Flow Characteristics and Their Relation to Certain Lung Conditions Occurring in Industry.J. Indust. Hy. & Toxicol. 1946; 28: 229
- The Clinical Pneumotachograph.in: chapter: Methods in Medical Research. vol. 2. The Yearbook Publishers, Inc.,, Chicago1950
- Respiratory Patterns in Pulmonary Tuberculosis.Am. Rev. Tuberc. 1946; 54: 574
- Respiratory Air Flow Patterns in Children.Am. J. Dis. Child. 1949; 77: 625
- Anesthesia Studies With the Pneumotachograph.J. Am. A. Nurse Anesthetists. 1949; 17: 35
Cahan, Alvin: Personal communication, Boston, Mass., 1949.
- Variable-Resistance Spring Transducer Circular. National Bureau of Standards, United States Department of Commerce, Washington, D. C.,Sept. 1, 1948
Article info
Publication history
Received:
April 21,
1950
Footnotes
☆The circuit for use in the Sanborn unit was suggested by Dr. Arthur Miller of the Sanborn Company, Cambridge, Mass.
Identification
Copyright
© 1950 Published by Elsevier Inc.
