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Sheet-like thin film thermocouple for measuring surface transient temperature

A technology of transient temperature and surface measurement, applied in the direction of measuring heat, thermometer parts, thermometers, etc., can solve the problems of inability to measure temperature, non-existence of sheet film thermocouples, influence of measurement accuracy, etc.

Inactive Publication Date: 2017-08-29
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are the following disadvantages for this topic: if it is necessary to accurately provide the surface emissivity of the measured object, it is impossible to measure the temperature in a closed environment, and the gas scattering absorption has a great impact on the measurement accuracy, etc.
However, sheet-shaped thin-film thermocouples for surface transient temperature measurement do not yet exist, and it is necessary to develop products suitable for high-temperature transient steady-state

Method used

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  • Sheet-like thin film thermocouple for measuring surface transient temperature
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  • Sheet-like thin film thermocouple for measuring surface transient temperature

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Embodiment Construction

[0048] The following is a specific implementation manner of the content of the present invention, and the content of the present invention will be further clarified through the specific implementation mode below. Of course, the following specific embodiments are described only to illustrate different aspects of the present invention, and should not be construed as limiting the scope of the present invention.

[0049] figure 1 Shown is a schematic diagram of the overall structure of the sheet-shaped thin-film thermocouple of the present invention. platinum rhodium by plasma sputtering 30 Thin film thermal electrode 3, platinum rhodium 6 The thin-film thermode 4 is plated on the ceramic substrate 1, platinum rhodium 30 Thin film thermode 3 and platinum rhodium 6 Thin-film thermal electrodes 4 form thermal junctions 2 at the upper end of substrate 1, through platinum rhodium 30 Pad 5 and Platinum Rhodium 30 Pad 6 respectively connects the platinum and rhodium 30 Lead wire ...

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Abstract

The invention discloses a sheet-like thin film thermocouple for measuring the surface transient temperature, comprising a sheet-like high-temperature ceramic substrate, a thin film thermal electrode, a thin film insulating layer and a lead. Thin film thermodes are prepared on a ceramic substrate by plasma sputtering, and a hot junction is set between the thin film thermodes, namely, a measuring end. The thermodes are covered by the thin film insulating layer. The sheet-like thin film thermocouple can be used for the measurement of the surface temperature of a special configuration object in an environment of 1000 DEG C or higher.

Description

technical field [0001] The invention belongs to the technical field of high-temperature transient measurement of weapons and equipment, and can also be applied to other high-temperature transient measurement technical fields, and specifically relates to a barrel temperature measurement at the moment of shell launching, the temperature measurement of the inner wall of the cylinder of an internal combustion engine, and a launching tube for instant cold launch of missiles. Sheet thin-film thermocouples for internal temperature measurement. Background technique [0002] With the continuous advancement of my country's weapons and equipment technology, the development work increasingly needs to accurately obtain the physical parameters of the product or the environment, so as to correct the simulation model or clarify the design boundary. For example, the temperature measurement of the gun barrel at the moment of shell launch, the temperature measurement of the inner wall of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K1/08G01K1/14G01K1/02G01K7/02
CPCG01K1/02G01K1/08G01K1/14G01K7/02
Inventor 李振伟朱熙王晶周艳刘畅侯亚琴高庆华
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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