Adjustable Pitot Probe Mount for Rapid Calibration

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Solution Overview

Problem

Conventional Pitot tube mounts in aircraft are inflexible, requiring time-consuming and costly flight test iterations to optimize sensor positioning, which delays calibration and increases costs.

Innovation Solution

An adjustable Pitot tube system with a streamline tube and mount that allows rotation, linear translation, and multi-dimensional positioning, enabled by actuators and computer control, facilitating quick reconfiguration during flight tests and operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional fixed Pitot tube mounts are used, then structural simplicity is maintained, but calibration time and cost increase due to inability to adjust sensor positioning

Engineering Contradiction:
Improvecalibration speedVSAvoidmount structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by transforming the fixed Pitot tube mount into an adjustable system. The mount includes actuators (electronic or manual) that enable the Pitot probe to move along the streamline tube and rotate to different angles. This dynamic capability allows rapid calibration by positioning the probe optimally without requiring multiple flight test iterations, thereby increasing calibration speed while accepting increased structural complexity.

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If multiple flight test iterations are performed to optimize Pitot tube position, then measurement precision can be improved, but time and cost are significantly increased

Engineering Contradiction:
Improveair data measurement accuracyVSAvoidcalibration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by enabling the Pitot probe to be pre-positioned and pre-oriented to the optimal calibration position using the adjustable mount and actuators. This preliminary positioning capability allows the sensor to be correctly aligned before flight tests begin, eliminating the need for multiple iterative flight tests to optimize position. The system performs the positioning action in advance, thereby achieving measurement precision without the time loss associated with repeated iterations.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the Pitot tube position is fixed during manufacturing, then manufacturing simplicity is maintained, but adaptability to different flight configurations is reduced

Engineering Contradiction:
Improveconfiguration flexibilityVSAvoidmount assembly simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent applies universality by designing the mount to serve multiple functions: it can hold the Pitot probe in various positions along the streamline tube and orient it at different angles. The adjustable mount with actuators provides configuration flexibility for different flight test requirements and operational modes. This multi-functional capability increases adaptability to different configurations while accepting increased manufacturing complexity compared to a fixed mount.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10048103B2Adjustable position pitot probe mount
Publication Date: 2018.08.14 TEXTRON INNOVATIONS INC
  • US10048103B2 patent drawing
  • US10048103B2 patent drawing
  • US10048103B2 patent drawing

AI summary

The present invention includes an adjustable Pitot tube and method for using the same for operating or flight testing an aircraft comprising: a Pitot probe; a streamline tube connected to the Pitot probe; a mount on the aircraft connected to the streamline tube, wherein the streamline tube can at least one of rotate about an axis of the mount, or the streamline tube can move the Pitot probe closer to, or away from, a skin of the aircraft.