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Measuring device for measuring gas parameters of combustion field

A gas parameter measurement and measurement device technology, applied in the direction of internal combustion engine testing, etc., can solve the problems of poor measurement results and insufficient number of light layouts, achieve good reconstruction quality, improve the number of layouts and coverage, and expand the scope of application.

Pending Publication Date: 2020-05-12
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a measuring device for measuring gas parameters in a combustion field, which can solve the problem of poor measurement results caused by insufficient light distribution in the flow field in the prior art

Method used

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  • Measuring device for measuring gas parameters of combustion field
  • Measuring device for measuring gas parameters of combustion field
  • Measuring device for measuring gas parameters of combustion field

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Embodiment Construction

[0020] The present invention is described in detail below in conjunction with examples, but the present invention is not limited to these examples.

[0021] An embodiment of the present invention provides a measuring device for measuring gas parameters in a combustion field, referring to Figure 1 to Figure 3 As shown, the measurement device includes: a measurement ring 10, the measurement ring 10 has an inlet and an outlet for the flow field 14 to be measured to enter; a plurality of laser emitting units 11 and a plurality of laser receiving unit groups; each laser emitting The unit 11 corresponds to each laser receiving unit group, and the corresponding laser emitting unit 11 and the laser receiving unit group are respectively arranged on two opposite side walls of the measuring ring 10; each laser receiving unit group includes A plurality of laser receiving units 12; a plurality of single-mode optical fibers 13 and a plurality of first multi-mode optical fibers; each single...

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Abstract

The invention discloses a measuring device for measuring gas parameters of a combustion field, belongs to the technical field of flow field optical measurement, and can solve the problem of poor measurement result caused by insufficient light distribution in the flow field in the prior art. The measuring device comprises a measuring ring; each laser emitting unit corresponds to each laser receiving unit group, and the corresponding laser emitting unit and laser receiving unit group are respectively arranged on two opposite side walls of the measuring ring; each laser receiving unit group comprises a plurality of laser receiving units arranged in rows; each single-mode optical fiber corresponds to each laser emission unit; each first multimode optical fiber corresponds to each laser receiving unit; the single-mode optical fiber outputs a laser beam to the laser emission unit; the laser emitting unit converts the laser beam into a fan-shaped light beam, and the laser receiving unit converges the fan-shaped light beam irradiated on the laser receiving unit and couples the fan-shaped light beam into the corresponding first multimode optical fiber. The device is used for flow field gasparameter measurement.

Description

technical field [0001] The invention relates to a measuring device for measuring gas parameters in a combustion field, and belongs to the technical field of flow field optical measurement. Background technique [0002] The measurement of engine combustion flow field parameters is of great significance for engine performance evaluation. The use of optical means to measure the products of the combustion flow field can avoid damage to the flow field and improve the accuracy of measurement. Tunable Diode Laser Absorption Spectroscopy (TDLAS) is an online measurement technique that has been widely used in the diagnosis of combustion and propulsion flow fields in recent years. The optical measurement part of the TDLAS measurement system mainly uses discrete optical probes to project light inside the engine to measure optical data. The limited number of rays placed in the field makes it difficult to obtain high-resolution flow field information, resulting in poor measurement resu...

Claims

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Application Information

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IPC IPC(8): G01M15/04
CPCG01M15/04
Inventor 宋俊玲金星饶伟尹韶云孙秀辉陈建军辛明原冯高平赵文涛姜雅晶娄登程
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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