Intelligent flexible pressure measuring belt for flight test

A technology of flight test and pressure measurement, which is applied in the direction of aircraft component testing, fluid pressure measurement, and measuring devices, etc. It can solve the problems of impractical parts, difficult modification, and high test cost.

Pending Publication Date: 2021-05-18
CHINESE FLIGHT TEST ESTAB
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  • Abstract
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  • Claims
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Problems solved by technology

At present, the most commonly used method for measuring the pressure distribution of domestic flight tests is the test piece drilling method based on scanning valves. This method h...

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  • Intelligent flexible pressure measuring belt for flight test
  • Intelligent flexible pressure measuring belt for flight test
  • Intelligent flexible pressure measuring belt for flight test

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Embodiment Construction

[0022] This embodiment provides an intelligent flexible pressure measuring belt for flight tests, which is a device for actual measurement of the pressure distribution of transport aircraft wings and other components developed based on the pressure sensing unit, such as figure 1 shown. The flight test pressure distribution measurement pressure measurement belt fully considers the actual measurement requirements of the pressure distribution measurement of the wing and other components, and designs the layout of the measurement points on the same flexible substrate according to the measurement position. Each pressure measuring cell corresponds to a measuring point. All measurement units share a bus for power supply and data transmission.

[0023] figure 2 The schematic diagram of the pressure measurement unit provided in the embodiment of the present application. The pressure measurement unit is mainly composed of a pressure sensing unit 1, a signal acquisition unit 2, a data...

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Abstract

The invention belongs to the technical field of pressure distribution measurement in a flight test, and particularly relates to an intelligent flexible pressure measuring belt for pressure distribution measurement in a flight test. The pressure measuring belt comprises a plurality of pressure measuring units which are arranged on a flexible pressure measuring belt substrate and are in data connection in sequence; each pressure measuring unit comprises a plurality of channel structures, each channel structure comprises a pressure sensing unit, a signal acquisition unit, a data processing unit, a data communication unit and a data transmission unit, and the pressure sensing units, the signal acquisition units, the data processing units, the data communication units and the data transmission units are in data connection in sequence. The pressure measuring belt can be tightly attached to the shapes of parts such as wings, and has the characteristics of high precision, light weight, easiness in modification, convenience in maintenance and the like.

Description

technical field [0001] The invention belongs to the technical field of pressure distribution measurement in flight tests, and in particular relates to an intelligent flexible pressure measuring belt for pressure distribution measurement in flight tests. Background technique [0002] The measurement of flight test pressure distribution is an important means for the study of aerodynamic load and aerodynamic characteristics. The results can not only directly provide the aerodynamic force distribution on the component test section, calculate the total load of the component, but also be used to determine the position of the minimum pressure point of the wing, stimulate the Wave position, airflow separation and pressure center position, so as to provide a basis for flight load verification, wing performance research, and wing flow field research. At present, the most commonly used method for measuring the pressure distribution of domestic flight tests is the test piece punching me...

Claims

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Application Information

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IPC IPC(8): G01L11/00B64F5/60
CPCB64F5/60G01L11/00
Inventor 张鹏程朱江辉闫文辉张海涛李少鹏
Owner CHINESE FLIGHT TEST ESTAB
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