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- Air flow measurement instruments
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Results 1 - 10 of 10
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9/1/2020 - Research areasMonitoring Ventilation Parameters and Accumulations of Combustible Gas Topic Page
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10/22/2016 - Research projectsA project to develop guidelines to assess ventilation effectiveness in underground coal mines using improved sampling protocols and defining optimal instrument locations for continuous-reading airflow and methane monitors.
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1/1/2012 - Peer reviewed journal articlesThis paper provides information about the effect of common obstructions in underground mining on air velocity readings.
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6/1/2010 - Conference papersIn this paper instrumentation and sampling strategies for accurate monitoring of airflow in an entry using two-axis and three-axis ultrasonic anemometers are evaluated.
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2/1/2007 - Conference papersThe fact that methane ignitions continue to occur at the mining face indicates that monitoring with machine-mounted methanometers does not always indicate the presence of high methane concentrations. Methane concentrations at the face change quickly du...
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1/1/2006 - Peer reviewed journal articlesA test system was developed at NIOSH's ventilation test gallery to measure airflow using a three-axis ultrasonic anemometer. The gallery was used to simulate face airflow conditions in underground mines having a blowing curtain. Airflow data were used t...
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5/1/2004 - Conference papersProvides guidelines for more effective use of the ultrasonic anemometer.
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1/1/2004 - Peer reviewed journal articlesReports on a test system and computer program developed for using a three-axis ultrasonic anemometer to measure airflow in a simulated mine entry.
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1/1/2003 - Technology NewsConventional anemometers (e.g., vane) are capable of accurately measuring air velocities only above 100 ft/min. This research investigated other anemometry technology to detect low air velocities in the range of 0-100 ft/min. Two different portable ultr...
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1/1/1987 - Reports of InvestigationsGob holes are routinely used by the mining industry to vent methane from gobs and to prevent it from entering the mine ventilation system. In some cases, flows from gob holes are measured by centering an anemometer on the end of a discharge pipe. These ...
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Content source: National Institute for Occupational Safety and Health, Mining Program