Air Speed Probe Integrating Time-Variant and Steady-State Sensors
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Solution Overview
Problem
Current air speed measurement systems require multiple probes for measuring different components of air speed, leading to increased size and cost due to the need for separate time-variant and steady-state sensors, which limits the number of measurement positions within a given space.
Innovation Solution
An air speed probe with a cylindrical body and frusto-conical tip, featuring a center bore with a time-variant pressure sensor and radial bores with steady-state sensors, optimized for reduced size by using a smaller diameter and depth ratio, allowing for combined measurement capabilities in a single probe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate probes with time-variant and steady-state sensors are used to measure different air speed components, then measurement accuracy is improved, but device size and cost increase
Solution Approach 1:
The patent combines both time-variant and steady-state pressure sensors into a single integrated probe assembly. The probe includes a first pressure sensor configured to sense time-variant pressure and a second pressure sensor configured to sense steady-state pressure, allowing both sensor types to coexist in one probe rather than requiring separate probes for each measurement type.
Solution Approach 2:
The single probe assembly is designed to perform multiple measurement functions simultaneously. It can measure both time-variant pressure fluctuations and steady-state pressure conditions, enabling the probe to capture both transient and average flow characteristics in a single device, thereby eliminating the need for multiple specialized probes.
2Measurement precision
If separate probes with time-variant and steady-state sensors are used to measure different air speed components, then measurement accuracy is improved, but equipment duplication and cost increase
Solution Approach 1:
The patent combines both time-variant and steady-state pressure sensors into a single integrated probe assembly. The probe includes a first pressure sensor configured to sense time-variant pressure and a second pressure sensor configured to sense steady-state pressure, allowing both sensor types to coexist in one probe rather than requiring separate probes for each measurement type.
Solution Approach 2:
The single probe assembly is designed to perform multiple measurement functions simultaneously. It can measure both time-variant pressure fluctuations and steady-state pressure conditions, enabling the probe to capture both transient and average flow characteristics in a single device, thereby eliminating the need for multiple specialized probes.
3Speed
If time-variant sensors are located close to the measurement plane, then response rate to pressure fluctuations is improved, but probe volume and area requirements increase
Solution Approach 1:
The patent combines both time-variant and steady-state pressure sensors into a single integrated probe assembly. The probe includes a first pressure sensor configured to sense time-variant pressure and a second pressure sensor configured to sense steady-state pressure, allowing both sensor types to coexist in one probe rather than requiring separate probes for each measurement type.
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 probe effectively measures air speed components, reducing overall size and cost by integrating both sensor types, enabling accurate detection of turbulent fluctuations, flow angle, and pressure while minimizing probe size and duplication of equipment.
Implementation Method 1
Pressure sensors can be used to measure air speed, such as the air speed within a wind tunnel or the air speed of an aircraft
Data Source
AI summary
An air speed probe with a cylindrical probe body having a length, and a frusto-conical tip at an end of the cylindrical probe body. A center bore with a first diameter and first depth is formed in a center of the tip and coaxially disposed along a portion of the length of the cylindrical probe body. Radial bores with second diameters and second depths are formed in a sidewall of the tip, where the first diameter is wider than the second diameter, and the first depth is shallower than the second depth.