FIELD: measurement technology.
SUBSTANCE: microscopic flowmeter has case provided with two identical chambers. High-temperature (1200K) thermo-sensitive elements in form of a flat spiral are disposed inside both chambers. Gas flow with half flow rate are introduced and carried away along case channel assemblies. To register irradiation flow of integral surface of both thermo-sensitive elements, four optical radiation converters being a sort of photodiodes are used. The photodiodes are placed inside capsules. Temperature of capsules is kept to preset level. Signals from photodiodes come to digital voltage meter.
EFFECT: improved precision of measurement; increased sensitivity; doubled measurement range.
2 dwg
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