DEVICE FOR MEASURING MICRO FLOW RATE Russian patent published in 2004 - IPC

Abstract RU 2240510 C2

FIELD: measuring the volume flow or mass flow of fluid.

SUBSTANCE: device has heat insulated housing (gas duct) which received a heat-sensitive element heated up to 1200^oK by current. The gas duct wall is provided with two optical windows for recording the spectral energy of luminance throughout the surface of the heat-sensitive element with the use of two optical converters. To flatten the front of the flow around the heat-sensitive element, a perforated plate (0.3-mm mesh size grid) is mounted at a distance of ~3 diameters from the thermistor.

EFFECT: enhanced sensitivity and reliability.

1 dwg

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RU 2 240 510 C2

Authors

Rumjantsev A.V.

Tarasov A.N.

Shevchenko P.R.

Dates

2004-11-20—Published

2002-02-11—Filed