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Measuring device suitable for two-dimensional reconstruction of combustion flow field gas

A technology for two-dimensional reconstruction and measurement devices, which is applied in the direction of measurement devices, electrical devices, and sensing radiation from gas/flame, etc., which can solve the problems of large errors in reconstruction results, achieve high precision, improve measurement efficiency, and avoid reconstruction effect of error

Active Publication Date: 2016-10-12
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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  • Application Information

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Problems solved by technology

Due to the limitation of hardware conditions in the experiment, the rotation angle is 90 degrees, which makes the error of the reconstruction result larger

Method used

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  • Measuring device suitable for two-dimensional reconstruction of combustion flow field gas
  • Measuring device suitable for two-dimensional reconstruction of combustion flow field gas
  • Measuring device suitable for two-dimensional reconstruction of combustion flow field gas

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Embodiment Construction

[0026] The following is a further detailed description of the combustion flow field gas two-dimensional reconstruction measurement device in conjunction with the accompanying drawings.

[0027] figure 1 A schematic diagram of the two-dimensional reconstruction measurement device is given. The measurement device includes an electronically controlled rotary table (1), an electronically controlled translational table combination (2), a laser emitting and receiving end surface (3), a measured area (4), and a laser coupler combination ( 5), laser transmitter (6), etalon (7), detector array (8), laser (9), multi-channel data acquisition card (10), translation stage controller (11), laser controller (12 ), computer (13).

[0028] figure 2 A schematic diagram of the rotary translation stage is given, which includes an electric control rotary stage (1), an electric control translation stage (201, 202), two fixed plates (203, 204), a fixed frame (301), a transmitting probe (302) and ...

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Abstract

The invention discloses a multi-light path and multi-angle measuring device suitable for two-dimensional reconstruction of a combustion flow field gas. The device comprises an electric control rotary table, electric control translation tables, a laser transmitting and receiving end surface, a laser coupler, a multi-channel data collection card, a laser controller, a translation table controller, an etalon, a laser, a detector, a computer. The device adopts an all-fiber coupling structure, and two ends of the laser transmitting and receiving end surface are respectively fixed on the two electric controlled translation tables, so that the maximum measurement area of the device is 350 mm by 350 mm and the minimum translation distance is 1 mm. The bottom ends of the translation tables are fixed on the electric control rotary table, so that the whole device can rotate to measure in 360 DEG, and the adjustable minimum rotational angle is 1 DEG. The whole device is smart in measurement design, compact in structure, convenient for dismounting and mounting, easy for operation, and good in versatility. The device can realize two-dimensional measurement of a high-temperature combustion flow field.

Description

technical field [0001] The invention belongs to the technical field of flow field optical measurement, relates to tunable semiconductor laser absorption spectrum technology, and is a universal and reliable measurement device developed for two-dimensional reconstruction of combustion flow field gas. Background technique [0002] With the continuous development of aerospace technology and the increasing demand for national defense construction, engine combustion flow field diagnosis and performance evaluation have received more and more attention. The efficient combustion flow field measurement method can provide an important reference for improving the combustion efficiency of the engine. Traditional flow field measurement mainly uses contact measurement methods, such as pneumatic velocity probes, gas sampling probes, thermocouple temperature probes, etc. Contact measurement has disadvantages such as high maintenance cost, high failure rate, slow response speed, inconvenient...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/32G01N21/85
CPCG01K11/32G01N21/85G01N2021/8578G01N2201/066G01N21/39G01N2021/399G01J3/0202G01J3/42G01J3/0218G01J3/108G01J5/0014G01J2005/0077G01J5/485G01J5/48G01K7/12G01K11/003G01N21/4795
Inventor 宋俊玲洪延姬王广宇饶伟
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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