Front end structure of multidirectional atmospheric pressure probe

A technology of atmospheric pressure and gas joints, which is applied in the direction of measuring fluid pressure, measuring devices, instruments, etc., can solve the problem of not being able to collect atmospheric environment data in multiple directions at the same time, achieve high anti-icing effect, good maintainability, and small heating power Effect

Pending Publication Date: 2020-04-17
TAIYUAN AERO INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: to solve the defect that the atmospheric environment data cannot be collected in multiple directions at the same time, and to realize the introduction of atmospheric gases in multiple directions

Method used

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  • Front end structure of multidirectional atmospheric pressure probe
  • Front end structure of multidirectional atmospheric pressure probe
  • Front end structure of multidirectional atmospheric pressure probe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1, see figure 1 , providing a front-end structure of a multi-directional atmospheric pressure probe, including a support seat, an upper column and a lower column; the structures of the upper column and the lower column are triangular prisms; the upper column, the lower column and the support seat The structure is fixed sequentially, and the axial projections of the upper cylinder and the lower cylinder are staggered by 60°;

[0026] The upper cylinder and the lower cylinder are integrated to form six axially parallel channel cavities, and the six channel cavities are evenly distributed in the circumferential direction; the three cylindrical surfaces of the upper cylinder and the three cylindrical surfaces of the lower cylinder are all provided with inlets. The gas port, the air inlet of each cylinder corresponds to a channel cavity; the support seat is provided with six gas guide joints, and each gas guide joint is connected to a channel cavity correspondingly. ...

Embodiment 2

[0027] Example 2, see figure 2 , providing a front-end structure of a multi-directional atmospheric pressure probe, including a support seat, an upper column and a lower column; the structures of the upper column and the lower column are square prisms; the upper column, the lower column and the support The structure is fixed sequentially, and the axial projection of the upper cylinder and the lower cylinder is staggered by 45°;

[0028] The upper cylinder and the lower cylinder are integrated to form eight axially parallel channel cavities, and the eight channel cavities are evenly distributed in the circumferential direction; the four cylindrical surfaces of the upper cylinder and the four cylindrical surfaces of the lower cylinder are all opened with inlets. The gas port, the air inlet of each cylinder corresponds to a channel cavity; the support seat is provided with eight gas guide joints, and each gas guide joint is connected to a channel cavity correspondingly.

Embodiment 3

[0029] Example 3, see figure 1 and 3 , providing a front-end structure of a multi-directional atmospheric pressure probe, comprising a support seat 3, an upper column 1 and a lower column 2; the upper column and the lower column are triangular prisms; the upper column and the lower column And the support seat is sequentially fixed as an integrated structure, and the axial projections of the upper cylinder and the lower cylinder are arranged in a staggered 60°;

[0030] The upper cylinder and the lower cylinder are integrated to form six axially parallel channel cavities, and the six channel cavities are evenly distributed in the circumferential direction; the three cylindrical surfaces of the upper cylinder and the three cylindrical surfaces of the lower cylinder are all provided with inlets. The gas port, the air inlet of each cylinder corresponds to a channel cavity; the support seat is provided with six gas guide joints, and each gas guide joint is connected to a channel c...

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Abstract

The invention relates to a front end structure of a multidirectional atmospheric pressure probe. The front end structure comprises a supporting seat, an upper column body and a lower column body, theupper column body and the lower column body are both triangular prisms; the upper column body, the lower column body and the supporting base are sequentially fixed into an integrated structure, and the axial projection of the upper column body and the axial projection of the lower column body are arranged in a staggered mode by 60 degrees. Six channel cavities parallel in the axial direction are integrally formed in the upper column body and the lower column body, and the six channel cavities are evenly distributed in the circumferential direction. Air inlets are formed in the three cylindrical surfaces of the upper column body and the three cylindrical surfaces of the lower column body; the air inlet of each cylindrical surface is correspondingly communicated with one channel cavity; thesupporting seat is provided with six air guide connectors, and each air guide connector is correspondingly communicated with one channel cavity. According to the structure, holes are formed in multiple directions for pressure measuring, a plurality of pressure sensing curved surfaces with certain pneumatic characteristics are distributed along the center of the column body in a circumferential array mode, a pressure sensing hole is formed in the center of each pneumatic molded surface, and air pressure in multiple directions around the probe can be sensed and output.

Description

technical field [0001] The invention relates to the technical field of airborne atmospheric data detection, in particular to the front-end structure of a multidirectional atmospheric pressure probe. Background technique [0002] At present, the omnidirectional air data probes for domestic helicopters use movable total static pressure probes. During flight, the probes rely on the tail and universal joints to keep parallel to the synthetic airflow and feel the total pressure and static pressure. The angle sensor is used to measure the deflection angle of the probe. , through the total synthetic airflow, static pressure and probe deflection angle, the atmospheric parameters such as the helicopter's three-axis six-direction velocity, rotor downwash airflow velocity, attack angle, and sideslip angle can be calculated. [0003] This kind of probe is composed of conventional total static pressure sensor and steering mechanism, and in order to reduce the influence of aircraft shape ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01L19/00
CPCG01L19/0007
Inventor张亚军石岩张健云张丽
OwnerTAIYUAN AERO INSTR