PubMed · 57482
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M Klein. 1976-05-15. Letter: Hectopascals for pressure.. https://doi.org/10.1016/s0140-6736(76)92253-4
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The important role of pressure-measurement for many diagnostic, surgical, critical care and biomedical research problems should not be underestimated. For high accurancy the good knowledge of the underlying physical and mathematical principles seems to be necessary. On the other hand many users need some quick and easy methods for units of pressure measurements testing and calibration of their pressure-measurements system. In this survey a small introduction to the units is followed by basic considerations about fluid-mechanics. Fourier-analysis and theory of transmission. (The influence of terms like "natural frequency", "damping" and "phase lag" are shown). After the description of the commonly used pressure-transducers some hints are given to check the systems even in small laboratories.