RU2004102006A - METHOD FOR MEASURING A LIQUID OR GAS FLOW SPEED - Google Patents

METHOD FOR MEASURING A LIQUID OR GAS FLOW SPEED Download PDF

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RU2004102006A
RU2004102006A RU2004102006/28A RU2004102006A RU2004102006A RU 2004102006 A RU2004102006 A RU 2004102006A RU 2004102006/28 A RU2004102006/28 A RU 2004102006/28A RU 2004102006 A RU2004102006 A RU 2004102006A RU 2004102006 A RU2004102006 A RU 2004102006A
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Russia
Prior art keywords
measuring
overheating
temperature
heating power
flow
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RU2004102006/28A
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Russian (ru)
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RU2267790C2 (en
Inventor
Виталий Яковлевич Купер (RU)
Виталий Яковлевич Купер
Михаил Геннадьевич Рубцов (RU)
Михаил Геннадьевич Рубцов
Евгений Федорович Хозинский (RU)
Евгений Федорович Хозинский
Александр Николаевич Шамихин (RU)
Александр Николаевич Шамихин
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Общество с ограниченной ответственностью "Научно-технический центр ГеоПАЛС" (RU)
Общество с ограниченной ответственностью "Научно-технический центр ГеоПАЛС"
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Priority to RU2004102006/28A priority Critical patent/RU2267790C2/en
Publication of RU2004102006A publication Critical patent/RU2004102006A/en
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Способ измерения скорости потока жидкости или газа, по которому в потоке располагаются термочувствительный преобразователь для измерения температуры потока и термочувствительный преобразователь с подогревателем для измерения скорости потока (термоанемометр), осуществляется управление мощностью нагрева и вычисление скорости потока по заданной формуле, отличающийся тем, что если разность температур термочувствительных преобразователей (перегрев) находится в пределах заданного диапазона, то мощность нагрева постоянна, а при изменении скорости потока изменяется перегрев, если же перегрев термоанемометра выходит за пределы заданного диапазона, то мощность нагрева изменяется до попадания перегрева в заданный диапазон, а значение измеряемой скорости потока вычисляется по формулеA method of measuring the flow rate of a liquid or gas, according to which a thermosensitive transducer for measuring the flow temperature and a thermosensitive transducer with a heater for measuring the flow velocity (hot-wire anemometer) are located in the flow, the heating power is controlled and the flow velocity is calculated according to a given formula, characterized in that if the difference the temperature of thermosensitive transducers (overheating) is within the specified range, then the heating power is constant, and when changed and the flow velocity varies overheating if the anemometer overheating beyond a predetermined range, then the heating power is changed before hitting overheating predetermined range, and the value of the measured flow rate is calculated by the formula
Figure 00000001
Figure 00000001
 где V - скорость потока;where V is the flow rate; Р - мощность нагрева;P is the heating power; θ=Тт-Тc - перегрев;θ = T t -T c - overheating; Тt - температура термоанемометра;T t - temperature anemometer; Тc - температура среды;T c is the temperature of the medium; k, с, d - постоянные коэффициенты.k, s, d are constant coefficients.
RU2004102006/28A 2004-01-22 2004-01-22 Method of measuring of a gas or liquid flow speed RU2267790C2 (en)

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RU2004102006A true RU2004102006A (en) 2005-07-10
RU2267790C2 RU2267790C2 (en) 2006-01-10

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