Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Height and speed testing structure and method based on minimum gas path delay

A technology for testing structure and height, applied in the field of flight test, which can solve the problems of limited space for the front pitot tube and setting test sensors for the front pitot tube

Inactive Publication Date: 2017-05-03
CHINESE FLIGHT TEST ESTAB
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] space in the nose pitot is very limited, therefore, there is no previous record of placing test sensors in the nose pitot

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Height and speed testing structure and method based on minimum gas path delay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The altitude velocity test structure based on the minimum gas path delay includes a front branch pitot tube 1, a height velocity sensor 3 is arranged in the front branch pitot tube 1, and the altitude velocity sensor 3 is fixed on the static pressure port according to its size. 2 The nearest position, and sealed connection with the total pressure air circuit and static pressure air circuit, using digital transmission. The altitude velocity test method based on the minimum air path delay adopts the above altitude velocity test structure, and the altitude velocity test is performed at the position closest to the static pressure port 2 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of flight tests, is used for testing height and speed parameters of testers, and in particular, relates to a height and speed testing structure and a method based on minimum gas path delay. In the flight tests, the height and speed testing of the testers is finished through measuring atmosphere dynamic and static pressure; and a gas path of about 20 m for leading static pressure and total pressure from a front branch air speed pipe to a testing point in a cabin exists to generate delay of about 0.1 s for height and speed testing. The space in the front branch air speed pipe is limited, so that the record of setting a testing sensor in the front branch air speed pipe is none before. The invention aims to provide the height and speed testing structure and method based on minimum gas path delay for realizing accurate real-time acquisition of height and speed parameters in the flight tests. Compared with a traditional front branch rod height and speed testing technology, the height and speed testing technology based on minimum gas path delay has the advantages of: reducing the gas path delay and removing the gas way blockage phenomenon.

Description

technical field [0001] The invention belongs to the field of flight test and is used for testing the height and speed parameters of a testing machine, and in particular relates to a height and speed testing structure and method based on minimum air path delay. Background technique [0002] In the flight test, the test of the altitude and speed of the test aircraft is completed by measuring the atmospheric dynamic and static pressure. In the pressure test, in order to reduce the error caused by the delay of the gas path, the pressure sensor is required to be as close as possible to the test point. In the stall spin test flight, it is required that the test results of altitude and speed are not affected by the airflow, that is, it must be carried out in a stable atmospheric airflow field. Therefore, it is necessary to install a front pitot tube, and the Stable atmospheric total and static pressures are introduced into the cabin for testing. In order to obtain a stable total a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B64F5/60
Inventor 姜宏伟潘海军张玉琴赵亚娟
Owner CHINESE FLIGHT TEST ESTAB
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com