1 / 27

HyperGun Handheld Hyperspectral Radiometer

HyperGun Handheld Hyperspectral Radiometer. Design Team 4 Sean Craig Hunter King Sean Roddick Hilary Sears. Outline. Project Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Current Design Budget Project Plan Conclusions. Project Background.

arama
Télécharger la présentation

HyperGun Handheld Hyperspectral Radiometer

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. HyperGunHandheld Hyperspectral Radiometer Design Team 4 Sean Craig Hunter King Sean Roddick Hilary Sears

  2. Outline • Project Background • Project Scope • Requirements • Mandatory • Out-of-Scope • Design Concepts • Current Design • Budget • Project Plan • Conclusions Dalhousie University - Department of Mechanical Engineering

  3. Project Background Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Hyperspectral Ocean-Colour Radiometer (HyperOCR). • High-precision measurements of water-leaving spectral radiance. • Calibrated range: 350-800 nm. • Can track environmental or ecological changes • Water quality • Ocean acidification due to CO2 absorption • Algae blooms Dalhousie University - Department of Mechanical Engineering

  4. Project Background Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • How is a measurement taken? • Take measurement of ambient radiance • Take measurement of water-leaving radiance • Data stored on-board for later download Satlantic (2010). HyperGun User Guide. Halifax, NS. Dalhousie University - Department of Mechanical Engineering

  5. Project Scope Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Advance HyperGun from prototype to commercial product. • Design and prototype ergonomic and robust body. • Improve electronics and graphical display. Dalhousie University - Department of Mechanical Engineering

  6. Mandatory Requirements Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • The mandatory requirements for the HyperGun are as follows: Dalhousie University - Department of Mechanical Engineering

  7. Mandatory Requirements Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Dalhousie University - Department of Mechanical Engineering

  8. Out-of-Scope Requirements Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Dalhousie University - Department of Mechanical Engineering

  9. Concept # 1 Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Design Features • Ergonomic fore-grip • Integrated handle • Back-mounted LCD screen • Two piece construction with o-ring seal Dalhousie University - Department of Mechanical Engineering

  10. Concept # 1 Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Advantages • Fore-grip improves ergonomics. • Integrated handle allows for customization of design. Disadvantages • Back-mounted LCD increases size requirements. • High upfront mold cost - $ 26,474 (ProtoLabs) • Issues in sealing around optics and graphical display. Dalhousie University - Department of Mechanical Engineering

  11. Concept # 2 Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Key Components • Fully-articulating LCD screen. • Stock handle with rechargeable battery. • Two Piece Body with o-ring seal Dalhousie University - Department of Mechanical Engineering

  12. Concept # 2 Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Advantages • LCD can be viewed from any angle. • Side-mounted screen saves room on body. • Rechargeable battery improvement upon disposable. Disadvantages • Increased cost – $ 27,740 (ProtoLabs) • Complex hinge mechanism • Battery pack adds weight. • Issue in sealing around optics Dalhousie University - Department of Mechanical Engineering

  13. Concept # 3 Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • “Cheap-o-Tron” • Represents inexpensive alternative to other concepts. • Machined body vs. Injection molding • Stock handle. Dalhousie University - Department of Mechanical Engineering

  14. Concept # 3 Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Advantages • Inexpensive, especially in low-volume production – $ 1,275 (ProtoLabs) • Easy to seal using o-ring between top and bottom casing. Disadvantages • Back-mounted LCD increases size requirements. • Stock handle requires batteries or battery pack to be contained in body. • Reduced aesthetics. Dalhousie University - Department of Mechanical Engineering

  15. Current Design Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Incorporates sub-assemblies of previous concepts. • l = 230 mm, w = 100 mm, h = 240 mm. Dalhousie University - Department of Mechanical Engineering

  16. Casing Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Comprised of main body and cap. • Houses all electronics. • Sealed using two o-rings. • Main Body • Top Cap Dalhousie University - Department of Mechanical Engineering

  17. Handle Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Handle will provide: • Comfortable, ergonomic grip • Trigger mechanism for operation • Contain power supply Dalhousie University - Department of Mechanical Engineering

  18. Handle Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Three significant ergonomic factors: • Maximum grip diameter • Maximum grip span • Hand breadth • Anthropometrics used to accommodate range of operators Dalhousie University - Department of Mechanical Engineering

  19. Handle Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Example of anthropometric data: Bodyspace: Anthropometry, ergonomics and the design of work (Pheasant, 1996) Dalhousie University - Department of Mechanical Engineering

  20. Electronics Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Digital display • Nadir, zenith, and azimuth angles, GPS position. • Increased display size. • Operating Temperature • -20°C minimum. • Tilt-compensated digital compass • Must be separated from other electronics • That mesh thing Dalhousie University - Department of Mechanical Engineering

  21. Optics Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions • Optic array used by Satlantic in current products. • Tight positional tolerance required. • Sensitive to moisture • Isolated from main compartment. Dalhousie University - Department of Mechanical Engineering

  22. Budget Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Dalhousie University - Department of Mechanical Engineering

  23. Project Plan Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Dalhousie University - Department of Mechanical Engineering

  24. Project Plan Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Dalhousie University - Department of Mechanical Engineering

  25. Conclusions Background Project Scope Requirements Mandatory Out-of-Scope Design Concepts Concept # 1 Concept # 2 Concept # 3 Current Design Casing Handle Electronics Optics Budget Project Plan Conclusions Accomplishments • Reduced weight and size in current designs. • Improved ease of use. • Reduced production costs from earlier concept. Future Work • Design will be reviewed and refined. • Engineering analysis on static o-ring seals. • Testing necessary to determine water ingress protection, ergonomics, and strength of housing. Dalhousie University - Department of Mechanical Engineering

  26. Acknowledgements • Design Team 4 would like to thank the following: Dalhousie University - Department of Mechanical Engineering

  27. Questions Dalhousie University - Department of Mechanical Engineering

More Related