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Aspects of on-line digital integration of preliminary gas transfer.

Authors
Bernard-TE
Source
J Appl Physiol 1977 Aug; 43(2):375-378
NIOSHTIC No.
10000159
Abstract
Digital computers are often used in work physiology to find pulmonary gas transfer on a breath-by-breath basis. A measurement procedure was simulated to determine the effects of sample rate, signal noise levels, and numerical filters on the digital calculations. The results indicated that a trapezoidal rule integration at a sample rate of 30 Hz with no numerical filter can provide satisfactory data. The flow rate and concentration signals should not be out of phase by more than 25 ms. The simple computational procedures give accurate results while minimizing the memory requirements and computation time.
Keywords
Analytical-instruments; Analytical-processes; Computer-equipment; Physiological-measurements; Physiological-testing
CODEN
JAPHEV
Publication Date
19770801
Document Type
OP; Journal Article
Fiscal Year
1977
NTIS Accession No.
NTIS Price
Issue of Publication
2
ISSN
8750-7587
NIOSH Division
PRC
Source Name
Journal of Applied Physiology
State
PA
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