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Miniaturisation of Pressure-Sensitive Paint Measurement Systems Using Low-Cost, Miniaturised Machine Vision Cameras
Mark Kenneth Quinn1, Emanuele Spinosa2, David A Roberts3
1School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK. mark.quinn@manchester.ac.uk.
Sensors (Basel, Switzerland)
|August 1, 2017
Summary
New machine vision cameras, typically used for industrial inspection, are suitable for pressure-sensitive paint (PSP) measurements. This cost-effective technology enables PSP applications in confined spaces and on small-scale models for wind tunnel testing.
Area of Science:
- Aerospace Engineering
- Optical Measurement Technology
- Fluid Dynamics
Background:
- Pressure-sensitive paint (PSP) is a technique used for surface pressure measurements.
- Scientific-grade cameras are traditionally used for PSP measurements, but can be expensive and bulky.
- Machine vision cameras offer potential advantages in cost and size but their suitability for PSP is not well-established.
Purpose of the Study:
- To evaluate the suitability of machine vision cameras for PSP measurements.
- To benchmark the performance of machine vision cameras against scientific-grade equipment.
- To demonstrate the applicability of machine vision technology for PSP applications.
Main Methods:
- Machine vision camera systems were assessed for their imaging characteristics.
- Camera performance was benchmarked against standard scientific imaging equipment.
- PSP tests were conducted using a static calibration chamber with machine vision cameras.
Main Results:
- Machine vision cameras demonstrate relevant imaging characteristics for PSP measurements.
- Performance of machine vision cameras is comparable to scientific-grade equipment for PSP applications.
- The study validates the use of machine vision technology for PSP measurements.
Conclusions:
- Machine vision technology is a viable and cost-effective alternative for PSP measurements.
- This technology expands the possibilities for PSP applications, including on small-scale models and in confined spaces.
- The use of machine vision cameras can facilitate PSP measurements in previously inaccessible environments.
