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Air inlet passage dynamic pressure acquisition and tail cone control device

A dynamic pressure and control device technology, applied in aerodynamic tests, measuring devices, instruments, etc., can solve the problems of high precision wind tunnel test and high accuracy, and achieve increased flexibility and reliability, low cost, The effect of broad adaptability

Inactive Publication Date: 2010-04-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

Due to the high accuracy of the test data of the wind tunnel test, the existing technology cannot meet some high-precision wind tunnel tests. This device can measure high-precision pressure and can perform automatic measurement, which is convenient for the test.

Method used

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  • Air inlet passage dynamic pressure acquisition and tail cone control device
  • Air inlet passage dynamic pressure acquisition and tail cone control device
  • Air inlet passage dynamic pressure acquisition and tail cone control device

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0022] Such as figure 1 As shown, the purpose of the present invention is to design and develop an 8-channel data acquisition and tail cone control system that can accurately control the cone position and accurately measure the dynamic pressure in the blowing test of the air inlet. Accurate taper position control is achieved through the control of the stepping motor, and five operating modes of the motor, such as single-step forward, single-step backward, continuous forward, continuous backward, and online, can be set by pressing the button. At the same time, the reset function can be realized. Adjustment of motor speed and setting of operating conditions. If the input stroke is wrong, it can be reset and re-entered. After several operating conditions are input continuously in continuous mode, after the operation is completed, if you need to run the same working c...

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Abstract

The invention discloses an air inlet passage dynamic pressure acquisition and tail cone control device, which comprises a microprocessor, an actuator, a display circuit, a keyboard circuit, a JTAG interface debugging circuit, a data storage circuit, a keyboard display driving chip, a progress storage circuit, a displacement signal acquisition circuit, a serial port communication circuit, two proximity switches, a power source, a motor driving circuit and a data acquisition module, and wherein the actuator is formed by fixedly connecting a stepping motor with a conical piston through a lead screw. The air inlet passage dynamic pressure acquisition and tail cone control device is low in cost and high in precision.

Description

technical field [0001] The invention relates to an inlet dynamic pressure collection and tail cone control device, which belongs to the field of inlet flow dynamic pressure data collection and tail cone control, and more precisely belongs to the collection and control of dynamic pressure data in the inlet wind tunnel test. Precise control of cone position, used in wind tunnel tests and various technical fields requiring measurement of dynamic pressure data. Background technique [0002] Aircraft inlet flow is an important index to match with aircraft engine, so it is very important to correctly measure the inlet flow. Aeroengines usually work under extremely harsh conditions such as high temperature, high pressure, high speed and high load. In order to ensure the reliable operation of the engine and its system, various strict tests must be carried out. During the test, all complex situations that may be encountered in the actual operation of the engine should be taken into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/04
Inventor 毛建国王宗超何小明王志超沈峘顾筠金智林
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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