Measuring indoor airflow patterns by using a sonic vector anemometer

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      <subfield code="a">Yost, M.G.</subfield>
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      <subfield code="a">This report describes the use of a novel instrument to evaluate airflow patterns associated with dilution ventilation in a test room. Air velocity was measured with a three-dimensional sonic anemometer, which determines velocity by sensing the time of flight of ultrasonic sound pulses. This sonic anemometer can resolve both the magnitude and direction of the vector at low air velocities, making it well suited for large-scale room measurements. Air velocity measurements were made inside a controlled ventilation test chamber with the anemometer</subfield>
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      <subfield code="a">Spear, Robert C.</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 53, nº 11, November 1992 ; p. 677-680</subfield>
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