Air Pressure Probe Harness Mounting for Paraglider
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Solution Overview
Problem
Existing air pressure probes for paraglider systems are prone to measurement inaccuracies and damage due to their placement on loads, which are affected by aerodynamic interference and movement, leading to falsified data and structural vulnerabilities during deployment and landing.
Innovation Solution
An air pressure probe with a housing and fastening device designed to attach to a paraglider harness, featuring angled housing surfaces and strategically positioned openings for static and dynamic pressure sensors, allowing for precise measurement of air pressure data close to the aerodynamic body while minimizing interference from the load, and enabling secure attachment without damaging the harness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If air pressure probes are arranged directly on the load, then air pressure data can be determined close to the aerodynamic body, but the measurement results are falsified due to aerodynamic interference and load movement
Solution Approach 1:
The air pressure probe is extracted from the load and relocated to the harness, separating the measurement device from the aerodynamic interference source while maintaining proximity to the aerodynamic body for accurate measurements
Solution Approach 2:
The harness serves as an intermediary mounting location between the load and the aerodynamic body, providing a stable platform for the probe that is neither affected by load movement nor too far from the aerodynamic body
2Measurement precision
If air pressure probes are sewn into the screen, then measurement is performed directly on the aerodynamic body, but the probe is located in the inlet lip area causing measurement falsification and calibration complexity
Solution Approach 1:
The probe is extracted from the screen structure and relocated to the harness, eliminating the need for complex wind tunnel calibration while maintaining measurement accuracy through proper positioning on the harness
3Productivity
If probes are arranged on loads, then air pressure data can be collected, but the probes are destroyed during parachute deployment and landing
Solution Approach 1:
The probe is extracted from the vulnerable load position and relocated to the harness, which experiences lower mechanical stresses during deployment and landing, thereby improving probe durability
Solution Approach 2:
The harness structure provides inherent protection and cushioning for the probe during high-stress events like deployment and landing, preventing probe destruction before it occurs
4Ease of operation
If drag probes are used with strong intrinsic movement, then measurement can be performed far from the screen, but the movement falsifies measurement results and prevents angle of attack measurements
Solution Approach 1:
The probe is positioned at a specific location on the harness that provides stability while maintaining measurement flexibility, creating a local optimal position that satisfies both requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides accurate flight performance parameters and reduces the risk of sensor damage, enabling precise air pressure data collection and automatic control of paraglider systems without interference from the load's aerodynamic effects, while ensuring the probe's safety during deployment and landing.
Implementation Method 1
differential pressure sensors are used which can directly determine the difference between the total pressure at the probe tip and the static pressure on the probe jacket
Data Source
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AI summary
The invention relates to an air pressure probe for detecting air pressure data of an airflow surrounding the air pressure probe, wherein the air pressure probe comprises a housing and at least one air pressure sensor. The air pressure probe further comprises a mounting device designed for attaching the air pressure probe to a harness of a paragliding system.