SU134900A1 - Method for measuring non-stationary short-term heat fluxes - Google Patents
Method for measuring non-stationary short-term heat fluxesInfo
- Publication number
- SU134900A1 SU134900A1 SU662478A SU662478A SU134900A1 SU 134900 A1 SU134900 A1 SU 134900A1 SU 662478 A SU662478 A SU 662478A SU 662478 A SU662478 A SU 662478A SU 134900 A1 SU134900 A1 SU 134900A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- term heat
- heat fluxes
- measuring non
- stationary short
- short
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
Известные способы измерени теплового потока с применением емкостного чувствительного элемента не могут быть использованы дл измерени нестационарных кратковременных тепловых потоков.The known methods for measuring heat flux using a capacitive sensing element cannot be used to measure transient short-term heat fluxes.
Измерение нестационарных кратковременных тепловых потоков но предлагаемому способу производитс посредством записи на регистрирующий прибор, например осциллограф, кривой изменени емкости чувствительного элемента от времени.Measuring transient short-term heat fluxes, but the proposed method is performed by recording to a recording device, such as an oscilloscope, the curve of the capacitance change of the sensitive element with time.
Чувствительным элементом вл етс конденсатор с тонкими металлическими обкладками, устанавливаемый на одном уровне с поверхностью , на которой изучаетс теплообмен. Через обкладку внутрь конденсатора входит измер емый тепловой поток. Ввиду малой длительности измерени температура обкладки конденсатора остаетс посто ннойИзвестно , что при незначительной толщине металлических обкладок диэлектрическа проницаемость диэлектрика вл етс линейной функцие) температуры. Таким образом, произвед запись изменени емкости от времени, можно по наклону записанной кривой в данной точке опреде лить мгновенное значение теплового потока. В качестве диэлектрика в чувствительном элементе примен лась керамика стронций-висмут-титанат , сохран юща линейную зависимость диэлектрической проницас мости от температуры в диапазоне от О до 200 .The sensing element is a capacitor with thin metal plates that is installed flush with the surface on which heat transfer is studied. Through the lining inside the condenser enters the measured heat flux. Due to the short measurement time, the temperature of the capacitor plate remains constant. It is known that with a small thickness of the metal plates, the dielectric constant of the dielectric is a linear function of the temperature. Thus, by recording the change in capacitance with time, it is possible to determine the instantaneous value of the heat flux from the slope of the recorded curve at this point. Strontium-bismuth-titanate ceramics was used as a dielectric in the sensitive element, maintaining the linear dependence of the dielectric constant on temperature in the range from 0 to 200.
Предмет изобретени Subject invention
Способ измерени нестационарных кратковременных тепловых пото .ков посредством емкостного датчика с диэлектриком, диэлектрическа проницаемость которого зависит от температуры, отл и ч а ю щ и ir с тем, что, с целью измерени мгновенного значени теплового потока, последнее определ ют по емкости чувствительного элемента н наклону кри ,вой зависимости емкости от времени.A method for measuring non-stationary short-term heat fluxes by means of a capacitive dielectric sensor, the dielectric constant of which depends on temperature, that is, so that, in order to measure the instantaneous heat flux, the latter is determined by the capacitance of the sensitive element the slope of the cree, howling the capacitance versus time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU662478A SU134900A1 (en) | 1960-04-08 | 1960-04-08 | Method for measuring non-stationary short-term heat fluxes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU662478A SU134900A1 (en) | 1960-04-08 | 1960-04-08 | Method for measuring non-stationary short-term heat fluxes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU134900A1 true SU134900A1 (en) | 1960-11-30 |
Family
ID=48291242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU662478A SU134900A1 (en) | 1960-04-08 | 1960-04-08 | Method for measuring non-stationary short-term heat fluxes |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU134900A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2727271C1 (en) * | 2019-10-18 | 2020-07-21 | Дмитрий Федорович Кожевин | Method for measuring power of thermal cooling effect of powdered compounds when extinguishing combustion source |
-
1960
- 1960-04-08 SU SU662478A patent/SU134900A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2727271C1 (en) * | 2019-10-18 | 2020-07-21 | Дмитрий Федорович Кожевин | Method for measuring power of thermal cooling effect of powdered compounds when extinguishing combustion source |
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