SU501298A1 - Method for measuring high stationary temperatures of gaseous media using a low-temperature thermal receiver - Google Patents
Method for measuring high stationary temperatures of gaseous media using a low-temperature thermal receiverInfo
- Publication number
- SU501298A1 SU501298A1 SU2065858A SU2065858A SU501298A1 SU 501298 A1 SU501298 A1 SU 501298A1 SU 2065858 A SU2065858 A SU 2065858A SU 2065858 A SU2065858 A SU 2065858A SU 501298 A1 SU501298 A1 SU 501298A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- low
- thermal receiver
- gaseous media
- measuring high
- temperature thermal
- Prior art date
Links
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
Изобретение относитс к области температурных измерений и предназначено дл измерени высоких температур газовых сред, превышающих температуру разрушени термоприемника .The invention relates to the field of temperature measurements and is intended to measure high temperatures of gaseous media exceeding the temperature of destruction of a thermal receiver.
Известны способы измерени высоких стационарных температур газовых сред с помошью низкотемпературных термоприемннков , имеюших в момент начала измерени температуру, меньшую по своему значению температуры исследуемой среды, заключающиес в фиксировании через определенный промежуток времени показаний термоп-риемников и нахождени по измеренным величинам температуры исследуемой среды.Methods are known for measuring high stationary temperatures of gaseous media with the help of low-temperature thermal receptacles, which at the moment of measurement start have a temperature lower in temperature of the test medium, which consists in recording the readings of the thermal converters after a certain period of time and finding the temperature of the test medium over the measured values.
Недостатком этих способов вл етс низка точность измерени , а также необходимость применени двух термоприемников.The disadvantage of these methods is low measurement accuracy, as well as the need to use two thermal receivers.
С целью повышени точности измерени предварительно определ ют показатель термической инерции термоприемника, вычиса ют величину, равную отношению разности времени окончани и начала измерени к величине термической инерции термоприемника, и, реша уравнение нагрева термоприемника при ступенчатом температурном воздействии, определ ют искомую величину.In order to improve the measurement accuracy, the thermal inertia index of the thermal receiver is preliminarily determined, a value equal to the ratio of the difference between the end time and the beginning of the measurement to the thermal inertia value of the thermal receiver is calculated, and, solving the heating equation of the thermal receiver at a step temperature effect, the desired value is determined.
Сущность способа заключаетс в следующем . Первоначально определ ют показатель термической инерции термоприемника е и зат ,-СоThe essence of the method is as follows. Initially, the thermal inertia index of the thermal detector e and τ is determined;
дают посто нной величиной отношени give a constant value of
где То- врем начала измерени , TI - врем окончани измерени . Затем через строго определенный промежуток времени TI-TO, после погружени термоприемника в исследуемую среду измер ют температуру термо приемника f/i, имеющего в момент начала измерени температуру С/о, меньшую температуры среды. Далее определ ют истинную температуру среды и по формулеwhere T is the measurement start time, TI is the measurement end time. Then, after a strictly defined time interval TI-TO, after immersing the thermal receiver in the test medium, the temperature of the thermal receiver f / i is measured, which at the time of the start of measurement the temperature C / o is lower than the medium temperature. Next, determine the true temperature of the medium and by the formula
и.г +IG +
- т, - TO- t, - TO
1 - ехр1 - exp
+ t/o+ t / o
1-- TI - 01-- TI - 0
ехрexp
2020
котора получена из уравнени , устанавливающего зависимость реакции термоприемника на ступенчатое температурное воздействие. При таком способе измерени повышаетс точность измерени и упрощаетс сам процесс измерени .which is obtained from the equation that establishes the dependence of the response of the thermal receiver on the step temperature effect. With this measurement method, the measurement accuracy is improved and the measurement process itself is simplified.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2065858A SU501298A1 (en) | 1974-10-07 | 1974-10-07 | Method for measuring high stationary temperatures of gaseous media using a low-temperature thermal receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2065858A SU501298A1 (en) | 1974-10-07 | 1974-10-07 | Method for measuring high stationary temperatures of gaseous media using a low-temperature thermal receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU501298A1 true SU501298A1 (en) | 1976-01-30 |
Family
ID=20597887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2065858A SU501298A1 (en) | 1974-10-07 | 1974-10-07 | Method for measuring high stationary temperatures of gaseous media using a low-temperature thermal receiver |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU501298A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2752774C1 (en) * | 2020-11-23 | 2021-08-03 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт метрологии им. Д.И. Менделеева" | Temperature measurement method |
-
1974
- 1974-10-07 SU SU2065858A patent/SU501298A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2752774C1 (en) * | 2020-11-23 | 2021-08-03 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт метрологии им. Д.И. Менделеева" | Temperature measurement method |
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