SU553455A1 - Device for measuring specific flow in supersonic gas flow - Google Patents
Device for measuring specific flow in supersonic gas flowInfo
- Publication number
- SU553455A1 SU553455A1 SU1937758A SU1937758A SU553455A1 SU 553455 A1 SU553455 A1 SU 553455A1 SU 1937758 A SU1937758 A SU 1937758A SU 1937758 A SU1937758 A SU 1937758A SU 553455 A1 SU553455 A1 SU 553455A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- flow
- gas flow
- supersonic gas
- measuring specific
- flow rate
- Prior art date
Links
Landscapes
- Measuring Volume Flow (AREA)
Description
1one
Изобретение относитс к измерительной технике и предназначено дл измерени удельного расхода в сверхзвуковом потоке газа .The invention relates to a measurement technique and is intended to measure the specific flow rate in a supersonic gas flow.
Известно устройство дл измерени удельного расхода в сверхзвуковом потоке газа, содержащее конический заборник газа, камеру и датчик давлени , в котором расход газа, поступаюш .его через заборник, измер етс по темпу роста добавлени в камере 1.A device for measuring the specific flow rate in a supersonic gas flow is known, comprising a conical gas intake, a chamber and a pressure sensor in which the flow rate of gas flowing through the intake is measured by the growth rate of the addition in chamber 1.
Недостатком такого устройства вл етс то, что в процессе эксперимента измен етс давление в камере, что приводит к изменению режима течени газа через заборник и увеличивает погрешность измерений.The disadvantage of this device is that during the experiment the pressure in the chamber changes, which leads to a change in the mode of gas flow through the intake and increases the measurement error.
Кроме того, определение расхода по темпу роста давлени в емкости не позвол ет получить высокую точность измерени и измер ть потоки значительно разреженных газов и потоки с высокой эпитальпией.In addition, the determination of the flow rate based on the rate of pressure growth in the tank does not allow for obtaining high accuracy of measurement and measuring the flows of significantly diluted gases and flows with high epitapal.
Целью изобретени вл етс повышение точности измерени и расширение области применени .The aim of the invention is to improve the measurement accuracy and the expansion of the field of application.
Эта цель достигаетс тем, что в устройстве камера выполнена проточной - подсоединена к откачивающей системе и снабжена теплообменником .This goal is achieved by the fact that in the device the chamber is made flow through - connected to the pumping system and equipped with a heat exchanger.
На чертеже представлена схема устройства.The drawing shows a diagram of the device.
Устройство содержит «оническнй заборник 1 с острыми кромками входного отверсти .The device comprises a “one-side intake 1” with sharp edges of the inlet.
датчик давлени 2, трассу 3, вл ющуюс одновременно теплообменником, и откачивающую вакуумную систему 4. Все элементы устройства соединены вакуумно плотно.pressure sensor 2, track 3, which is simultaneously a heat exchanger, and a pump-down vacuum system 4. All elements of the device are vacuum-tightly connected.
Измер ют удельный расход при помощи предлагаемого устройства следующим образом . Конический заборник газа ввод т в поток . Расход газа через заборник 1 (при отсутствии отошедшего скачка уплотнени ) равеиThe specific consumption is measured using the proposed device as follows. A conical gas intake is introduced into the stream. Gas consumption through intake 1 (in the absence of a detached shock wave)
G pvS,G pvS,
где р - плотность,where p is the density
V - скорость потока газа,V is the gas flow rate,
5 - площадь входного отверсти заборника. Расход G измер етс по величине давлени Р, регистрируемого датчиком 2, и расходной характеристике откачивающей системы 4. Величина удельного расхода pv определ етс по измеренной величине расхода G5 - the area of the inlet of the intake. The flow rate G is measured by the pressure value P detected by sensor 2 and the flow characteristic of the pumping system 4. The specific flow rate pv is determined from the measured flow rate G
-1-one
Наличие теплообменника позвол ет проводить измерени в потоках с высокой (низкой) температурой торможени .The presence of a heat exchanger allows measurements in streams with a high (low) stagnation temperature.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1937758A SU553455A1 (en) | 1973-06-25 | 1973-06-25 | Device for measuring specific flow in supersonic gas flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1937758A SU553455A1 (en) | 1973-06-25 | 1973-06-25 | Device for measuring specific flow in supersonic gas flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU553455A1 true SU553455A1 (en) | 1977-04-05 |
Family
ID=20558177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1937758A SU553455A1 (en) | 1973-06-25 | 1973-06-25 | Device for measuring specific flow in supersonic gas flow |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU553455A1 (en) |
-
1973
- 1973-06-25 SU SU1937758A patent/SU553455A1/en active
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