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Circular thermopile temperature sensor

A technology of temperature sensor and thermopile, which is used in thermometers, thermometers, instruments, etc., which use electrical/magnetic components directly sensitive to heat, can solve problems such as disadvantage and inconvenience, and achieve the effect of compact structure and flexible time constant.

Inactive Publication Date: 2002-06-05
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from τ=C / G that for the calorimeter C and G are fixed, the time constant of the calorimeter is also fixed, which is unfavorable for studying different types of reactions
In addition, after a calorimeter is completed, the size of its reaction cell has been basically determined due to the limitations of other components. When measuring the thermal effects of different substances, only the same reaction cell can be used. This is very important for studying various reactions with different reaction quantities. There are many inconveniences

Method used

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  • Circular thermopile temperature sensor
  • Circular thermopile temperature sensor
  • Circular thermopile temperature sensor

Examples

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Embodiment

[0023] Example: There are 50 evenly distributed grooves on each of the large and small rings processed from aluminum alloy. Both the large and small rings with grooves are treated with electrochemical passivation and insulation to ensure that the thermocouples are not short-circuited. The ring-shaped thermopile welded by 50 pairs of nickel-chromium and constantan wires is placed in the grooves of the large and small rings, and the entire ring-shaped thermopile is fixed in the grooves of the large and small rings with epoxy resin, and each is left One end and one end are provided for series connection. The 30 fixed large and small rings are stacked up and down in series in order to form a thermopile with 1500 pairs of nickel-chromium and constantan thermocouples.

[0024] For a thermopile stacked by 30 large and small rings, when the uppermost and lowermost two layers are placed, the thermopile is not placed in the groove, but the copper that connects the corresponding grooves ...

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Abstract

An annular thermobile temperature sensor includes thermopiles-comprised thermocouples. The present invention features that one large ring and one small ring with homogeneously distributed slots in the same number of fix thermocouples connected into annular thermopile via insulating material to constitute one thermopile unit; and several thermopile units are laminated and serially connected to form the annular thermopile temperatur sensor. The temperature sensor (thermpile) and the reaction pond are designed as replaceable ones, the number of thermocouples to constitute one thermopile may be altered easily, and the time constant of the calorimeter may be regulated flexibly to meet the need of different reactions.

Description

technical field [0001] The invention relates to an annular thermopile temperature sensor. Background technique [0002] As a kind of heat detection device, thermal conductivity calorimeter is widely used because of its non-specific detection characteristics, and because it is suitable for long-term detection, it can detect the thermal effects of physical, chemical, biological and other processes. Applications. For example, the products produced by LKB Company in Sweden and Setaram Company in France have been widely used in the above research fields. The core component of the thermal conductivity calorimeter is the thermopile used to detect the temperature difference. A thermopile is obtained by connecting a certain number of thermocouples of the same type in series. The two ends of the thermopile are respectively attached to the outer wall of the constant temperature block and the reaction pool. The working principle of thermal conductivity calorimeter can be expressed by ...

Claims

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Application Information

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IPC IPC(8): G01K7/02G01K7/04
Inventor 汪存信张恒唐浩李杰刘欲文王志勇
Owner WUHAN UNIV
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