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Information on Flow Meter Manufacturers Web Listings Publications News Topics Information A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. It is a precision differential pressuretransducer for the measurements of respiration flow rates. The spirometer records the amount of air and the rate of air that is breathed in and out over a specified time. The Spirometer and attached flow head function together as a pneumotachometer, with an output signal proportional to airflow. It was invented by John Hutchinson in 1846. [CaRP] XML error: Mismatched tag at line 2 Flow meters- Directory of manufacturers of flowmeters. Directory of manufacturers and suppliers of ultrasonic and turbine flow meters used for measuring thermal mass, air, gas water and other liquids. Flowmeter Directory of Manufacturers and Suppliers Flowmeterdirectory.com is the world’s most well known independent flow meter resource site. Here you will find information on flow meter types, companies, articles and useful ...
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