Soap film gas flow measuring device
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United States of America Patent
Stats
-
Aug 29, 1989
Grant Date -
N/A
app pub date -
Dec 16, 1987
filing date -
Dec 16, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A soap film gas flow measuring device for computing the rate of gas flow through the device by detecting each moment in time when a soap film crosses two positions in a flow tube through which the soap film is propelled by the gas flow, computing the time difference and calculating the flow rate. A set of insulated wire conductors is inserted through the flow tube at each position at which the soap film is to be detected and circuit means is used to detect a predetermined drop in conductivity between each set of conductors corresponding to the crossover point.
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