SU508690A1 - The way to configure a differential microcalorimeter - Google Patents
The way to configure a differential microcalorimeterInfo
- Publication number
- SU508690A1 SU508690A1 SU1990428A SU1990428A SU508690A1 SU 508690 A1 SU508690 A1 SU 508690A1 SU 1990428 A SU1990428 A SU 1990428A SU 1990428 A SU1990428 A SU 1990428A SU 508690 A1 SU508690 A1 SU 508690A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- configure
- way
- microcalorimeter
- differential
- cells
- Prior art date
Links
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
1one
Изобретение относитс к области теплоизмерепий .This invention relates to the field of thermal specimens.
Известны способы настройки дифференциального микрокалориметра, при котором подгон ют и уравновешивают свойства чеек путем изменени термических сопротивлений в теплопереходах, однако при этом нарушаетс статическа балансировка калориметра. Это обусловлено тем, что чувствительпость калориметра обратно пропорциональна тепловой проводимости термических сопротивлений.Methods are known for setting up a differential microcalorimeter in which the properties of cells are adjusted and balanced by changing thermal resistances in heat-transfer lines, however, the static balancing of the calorimeter is impaired. This is due to the fact that the sensitivity of the calorimeter is inversely proportional to the thermal conductivity of thermal resistances.
Цель изобретени - повышепие точности измерений.The purpose of the invention is to improve measurement accuracy.
Это достигаетс тем, что измен ют массы чеек микрокалориметра до выравнивани их посто нных времени.This is achieved by changing the masses of the microcalorimeter cells until their constant time levels out.
Точность измерений повышаетс уменьшением величины дрейфа нул дифференциальных микрокалориметров. Обычно в реальных приборах даже при одинаковых массах чеек они по чувствительности могут отличатьс . Теоретический и экспериментальный анализ показал, что одной из причин остаточного дрейфа вл етс динамическа пебалансировка чеек. При одинаковой чувствительности термоэлектробатарей и одинаковой массе чеек посто нна времени могут быть разна , вследствие разных термических сопротивлений в теплопереходах, разной теплопередачи стенок чеек и т. д.Measurement accuracy is increased by decreasing the drift value of zero differential microcalorimeters. Usually in real devices, even with the same cell masses, they may differ in sensitivity. Theoretical and experimental analysis showed that one of the causes of residual drift is dynamic cell imbalance. With the same sensitivity of thermoelectric batteries and the same mass of cells of a constant time can be different, due to different thermal resistances in heat transfer, different heat transfer of cell walls, etc.
В этом случае при воздействии случайных нестационарных температурных полей теплов .а реакци чеек оказываетс взаимно пескомпенсированной , что и служит причиной по влени ложных сигналов. После проведени обычной, статической балансировки по предлагаемому способу провод т динамическую балансировку, измен массы чеек до выравнивани их посто нных времени. Измерение посто нных времени и добавка массы (иаиример, подпайка припо ) продолжаетс до тех пор, пока посто нные времени чеек не выравниваютс .In this case, when exposed to random non-stationary temperature fields of heat, the reaction cells are mutually pescompensated, which is the cause of the appearance of spurious signals. After performing the conventional, static balancing of the proposed method, dynamic balancing is performed by changing the mass of the cells until their constant time is equalized. The measurement of the time constant and the addition of mass (iairimer, solder soldering) is continued until the cell time constant is equalized.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1990428A SU508690A1 (en) | 1974-01-28 | 1974-01-28 | The way to configure a differential microcalorimeter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1990428A SU508690A1 (en) | 1974-01-28 | 1974-01-28 | The way to configure a differential microcalorimeter |
Publications (1)
Publication Number | Publication Date |
---|---|
SU508690A1 true SU508690A1 (en) | 1976-03-30 |
Family
ID=20573954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1990428A SU508690A1 (en) | 1974-01-28 | 1974-01-28 | The way to configure a differential microcalorimeter |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU508690A1 (en) |
-
1974
- 1974-01-28 SU SU1990428A patent/SU508690A1/en active
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