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Temperature and pressure combined measurement system and measurement method

A temperature pressure, measurement system technology, applied in the direction of measuring heat, thermometer, measuring force, etc., can solve the problems of destroying the pressure field structure of the test target, destroying the surface structure, and being easily restricted in installation

Active Publication Date: 2018-02-02
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method destroys the surface structure, not only destroys the target pressure field structure of the test, but also easily restricts the installation of gas turbines, aeroengines and other working environments in high-speed motion

Method used

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  • Temperature and pressure combined measurement system and measurement method
  • Temperature and pressure combined measurement system and measurement method
  • Temperature and pressure combined measurement system and measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A temperature and pressure joint measurement system, its structure is as follows figure 1 As shown, it includes a signal transmitter 1, a laser light source 2 electrically connected to the signal transmitter 1, a temperature and pressure probe 4, and a temperature and pressure signal processing unit used in conjunction with the temperature and pressure probe 4. The temperature signal processing unit includes a spectroscope 7. Reflector 8, temperature phosphorescence filter 9, pressure phosphorescence filter 10, temperature photomultiplier tube 11, temperature resistance box 13 connected with temperature photomultiplier tube 11, pressure photomultiplier tube 12, connected with pressure photomultiplier tube 12 A piezoresistive box 14 and an oscilloscope 15 for collecting signals. The surface of the temperature and pressure probe 4 is sprayed with Zr 3 Y 4 o 12 : Eu and MFG mixed phosphor layer 6, and respectively connected with laser light source 2 and beam splitter 7 ...

Embodiment 2

[0080] This embodiment is basically the same as Embodiment 1, except that the wavelength of the laser ultraviolet light source is 380nm, and the power of the light source is 3w. The resistance of the resistance box 6 is set to 300Ω.

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Abstract

The invention relates to a temperature and pressure combined measurement system and measurement method. The system comprises a temperature and pressure probe, an optical fiber coupler connected with the temperature and pressure probe, a laser light source connected with the inlet of the optical fiber coupler through a fiber, a beam splitter mirror connected with the outlet of the optical fiber coupler through a fiber, and signal processing units arranged behind different light paths of the beam splitter mirror. The surface of the temperature and pressure probe is coated by a Zr3Y4O12: Eu and MFG mixed phosphor layer, wherein mass ratio of Zr3Y4O12: Eu and MFG in the Zr3Y4O12: Eu and MFG mixed phosphor layer is (800-2500):1. Compared with the prior art, the system and method have the advantages of capable of jointly measuring a temperature field and a pressure field in a non-contact mode, being high in measurement temperature (500-1000 DEG C) and being high in temperature and pressure measurement accuracy; by changing the shape of the temperature and pressure probe, the system can be suitable for temperature and pressure measurement under different environments without influencing the temperature field and the pressure field; and the system is wide in application range and suitable for measuring the temperature of an aero-engine or a ground gas turbine in a working state.

Description

technical field [0001] The invention relates to the technical field of inorganic optical materials, in particular to a combined temperature and pressure measurement system and measurement method. Background technique [0002] With the emergence and development of industrial equipment such as gas turbines and aeroengines, the measurement of temperature and pressure in high-temperature and high-pressure environments is particularly important in modern engineering technology and scientific applications. However, these extreme conditions of high temperature and high pressure are beyond the measurement range of traditional measurement methods, and research based on new technologies such as new special temperature and pressure sensors must be carried out. [0003] In the existing temperature measurement technology, it is generally based on the temperature dependence on resistance, thermoelectric effect (thermocouple), color projection, sound velocity in gas, spectral distribution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01L1/24
CPCG01K11/32G01L1/242
Inventor 彭迪蔡涛杨丽霞刘应征赵晓峰
Owner SHANGHAI JIAO TONG UNIV
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