Tag: Respiratory measurements
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Functions & Types of Pneumotachometers for Biomedical Measurements
Pneumotachometers are instruments that measure the instantaneous rate of volume flow of respired gases. They can be broadly classified into two types based on the principle of operation: The pneumotachometer is normally used to measure parameters relating to pulmonary function such as forced expiratory volume (FEV), maximum mid-expiratory volume, & peak flow and to generate…
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Key Considerations in Respiratory Measurements & Instrumentation Involved
Airflow The airflow in the respiratory system is normally laminar. However, during heavy breathing or when there is an obstruction, the airflow may become turbulent. The airflow is laminar unless the Reynolds number of the flow becomes 50,000 or more. When the Reynolds number is small, the viscous force in the flow dominates over the…