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Temperature sensing device

A sensing device and sensing head technology, applied in thermometers, measuring devices, thermometers with physical/chemical changes, etc., can solve the problem of poor service life, poor adaptability to harsh environments, limited temperature range of temperature sensing devices, and dynamic response. And other problems, to achieve the effect of service life and good adaptability to harsh environments, increase the upper limit of temperature measurement, and improve measurement accuracy

Inactive Publication Date: 2019-05-31
BEIJING ZHENXING METROLOGY & TEST INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The invention provides a temperature sensing device, which can solve the technical problems in the prior art that the temperature measuring range of the temperature sensing device is limited and the dynamic response, interference shielding, service life and bad environment adaptability are poor

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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention provides a temperature sensing device. The temperature sensing device comprises a sensing head base, a sensing head body part, a simulated blackbody cavity, a high-temperature optical system, a high-temperature-resistant optical fiber, an optical fiber fixing structure, a fixing jackscrew, a light transmission optical fiber and a signal processing system. The simulated blackbody cavity is arranged in the sensing head base; the high-temperature optical system is used for collecting an optical radiation signal emitted by the simulated blackbody cavity; the high-temperature-resistant optical fiber is used for receiving the optical radiation signal collected by the high-temperature optical system; the optical fiber fixing structure is used for fixing the high-temperature-resistant optical fiber; the fixing jackscrew is used for limiting movement of the optical fiber fixing structure in the axial direction of the sensing head body part; the light transmission optical fiber isconnected with the high-temperature-resistant optical fiber; and the signal processing system is used for converting the optical radiation signal outputted by the light transmission optical fiber intothe temperature of an object to be measured. According to the technical scheme, the technical problems that in the prior art, the temperature measuring range of a temperature sensing device is limited, and dynamic response, interference shielding, service life and severe environment adaptability are poor are solved.

Description

technical field [0001] The invention relates to the technical field of high temperature measurement, in particular to a temperature sensing device. Background technique [0002] In the development process of the new engine, due to the lack of high-temperature test methods for the combustion chamber, the key basis data for the thermal protection design of the combustion chamber is missing, resulting in hidden dangers in the reliability of the combustion chamber, resulting in the failure of the engine ground and flight tests, and a greater risk of failure in development. The temperature of the inner and outer walls of the combustion chamber, the temperature of internal components, and the temperature of the airflow are important parameters that need to be mastered in the process of engine design and testing. Accurate acquisition of this parameter will provide basic data for the reliability and safety design of the high-temperature structure of the new engine combustion chamber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/00
Inventor 张玉国孙广尉张鑫孙红胜邱超
Owner BEIJING ZHENXING METROLOGY & TEST INST
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