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Testing system for pressure and temperature of supersonic engine plume field

A technology of engine and supersonic speed, which is applied in the field of measurement, can solve problems such as the surge of test cost, and achieve the effect of reducing test time, adding less disturbance, and high response rate

Inactive Publication Date: 2012-05-16
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

When testing the parameters of the engine plume field, the characteristic parameters of multiple points in the three-dimensional direction are concerned, and the use of multiple test units will increase the test cost

Method used

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  • Testing system for pressure and temperature of supersonic engine plume field
  • Testing system for pressure and temperature of supersonic engine plume field
  • Testing system for pressure and temperature of supersonic engine plume field

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Embodiment Construction

[0016] The test system for the pressure and temperature of the supersonic engine plume field of the present invention includes a Pitot pressure test unit, a thermocouple temperature test unit and a three-dimensional electric control translation platform. The three-dimensional electronically controlled translation platform includes a radial translation module, on which an axial translation module is arranged, a height movement module is arranged on the axial translation module and a test unit installation platform installed on the height movement module, and a pressure test unit is installed on the test unit installation platform. unit and temperature test unit, where figure 1 shows the engine plume pitot pressure test cell structure, figure 2 The temperature test unit structure of the test system of the plume field pressure and temperature of the present invention is illustrated, image 3 The three-dimensional electronically controlled translation stage structure is shown. ...

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Abstract

The invention discloses a testing system for a pressure and a temperature of a supersonic engine plume field. The system comprises a pitot pressure testing unit, a thermocouple temperature testing unit and a three-dimensional electrically controlled translation table. According to the testing system provided in the invention, the system has a high response rate; pressure and temperature distribution situations of plumes can be conveniently and rapidly; and testing time can be substantially reduced; besides, a head of a pressure testing unit is in a taper shape, so that disturbance on the plume field during the measuring process can be reduced.

Description

technical field [0001] The patent of the present invention belongs to the field of measurement technology. Specifically, the present invention mainly relates to a test system for efficiently and rapidly measuring the pressure and temperature of the plume field of a supersonic engine. Background technique [0002] Satellite thrusters operate in a high vacuum and emit plumes. Plumes form deposits on satellites or satellite payload targets, thereby affecting the performance of the satellites, known as plume contamination. Plume contamination has a serious impact on its own or adjacent sensitive surfaces such as optical components, thermal control coatings, and solar cell wing surfaces, degrading its performance and, in severe cases, completely failing a system or component. Since the engine plume is supersonic, its stagnation temperature is very high, which can reach hundreds of degrees, and the stable working temperature of the pressure sensor is 0°C to 80°C. It is difficult ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L9/00G01K7/04
Inventor 田东波于钱焦子龙孙威孟显易忠杨东升臧卫国院小雪
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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