SU777586A1 - Method of graduating thermoanemometer - Google Patents
Method of graduating thermoanemometer Download PDFInfo
- Publication number
- SU777586A1 SU777586A1 SU782615847A SU2615847A SU777586A1 SU 777586 A1 SU777586 A1 SU 777586A1 SU 782615847 A SU782615847 A SU 782615847A SU 2615847 A SU2615847 A SU 2615847A SU 777586 A1 SU777586 A1 SU 777586A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- temperature
- medium
- thermoanemometer
- hot
- sensitive elements
- Prior art date
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- Measuring Volume Flow (AREA)
Description
Два термочувствительных элемента в виде полупроводниковых терморезисторов, один из которых снабжен иодогревной обмоткой , включают дифференциально в, мостовую схему. Пользу сь данньши сопротивлени терморезисторов от температуры и скорости потока, устанавливают необходимую температуру перегрева измерительного термочувствительного элемента потоке с известной скоростью, равной минимальной измер емой величине, и с иомощью посто нных нетермозависимых резисторов , подключаемых последовательно и параллельно к компенсационному или измерительному терморезисторам (термочувствительным элементам), добиваютс уравновешенного состо ни схемы во всем заданном температурном диапазоне.Two thermosensitive elements in the form of semiconductor thermistors, one of which is equipped with an izogrevny winding, include a differential in the bridge circuit. Using the given resistance of thermistors on temperature and flow rate, set the required overheating temperature of the measuring temperature sensitive element of the flow with a known speed equal to the minimum measured value and using constant nonthermically-dependent resistors connected in series and parallel to the compensation or measuring thermistor resistors (thermally sensitive element) , achieve a balanced state of the circuit over the entire specified temperature range.
Затем устанавливают скорость потока, равную максимальной измер емой величине , и измен ют сопротивление посто нных нетермозависимых элементов схемы, например плеч моста, до получени равенства выходных сигналов в трех точках температурного диапазона, например в крайних и средней, причем отношение сопротивлений плеч моста сохран ют неизменным .Then, a flow rate equal to the maximum measured value is set, and the resistance of constant nonthermically-dependent circuit elements, for example, the bridge arms, is changed until the output signals are equal at three points in the temperature range, for example, at the extreme and average, and the ratio of the resistances of the bridge arms remains unchanged. .
Аналогичный результат получают при изменении сопротивлени измерительной диагонали моста.A similar result is obtained when the resistance of the measuring diagonal of the bridge is changed.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782615847A SU777586A1 (en) | 1978-05-16 | 1978-05-16 | Method of graduating thermoanemometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782615847A SU777586A1 (en) | 1978-05-16 | 1978-05-16 | Method of graduating thermoanemometer |
Publications (1)
Publication Number | Publication Date |
---|---|
SU777586A1 true SU777586A1 (en) | 1980-11-07 |
Family
ID=20764686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782615847A SU777586A1 (en) | 1978-05-16 | 1978-05-16 | Method of graduating thermoanemometer |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU777586A1 (en) |
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1978
- 1978-05-16 SU SU782615847A patent/SU777586A1/en active
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