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Lightweight UXO system

Lightweight UXO system. Concept design For Berkeley Geophysics. Frank, Ugo, Here is my take on the UXO hand held, rendered as a small cart. The intent was to address this as a design for manufacture, rather than a Lab prototype.

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Lightweight UXO system

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  1. Lightweight UXO system Concept design For Berkeley Geophysics

  2. Frank, Ugo, Here is my take on the UXO hand held, rendered as a small cart. The intent was to address this as a design for manufacture, rather than a Lab prototype. The primary focus is on field operation and the attendant requirements for simplicity, and robustness. This concept reflects a more final production concept than usual (without details). And I addressed operational requirements such as cost-per-unit, manufacturability, robustness, field-repair and parts change. The concept presented has three main features: 1. It assumes a high degree of integration, i.e. mechanical and electronic components are co-developed into integrated assemblies. 2. Tx and Rx fabrication can produce dimensionally consistent, self-supporting coils, especially Tx coils: and, 3. Structures are blow-molded or composite assemblies designed for high volume production. (electronics also designed for high vol production...). A word about Tx fabrication: We have experience and capability to fab self-supporting, dimensionally consistent Tx coils, but will have to develop tooling and procedures to achieve the consistency we will need. We will also have to do trade-offs with the electrical properties while we do this.... I have typical cross-sections and material choices in mind that seem like appropriate starting points. I also have tooling in mind, but Ugo may already have a plan. If we can balance electrical and mechanical properties and still have a mechanically stable coil assembly, the 'blow-molded' design has a range of advantages that coincide with the design targets. A word about 'blow-molded' design: Double-wall construction, hi-impact resistance, low weight, and low part cost, are hallmarks of the process. ( Along with ~zero conductivity ) If we use the process cleverly, we can also get very simple assemblies, low part count, easy parts changes, and terrific robustness at no extra production cost. The main expense will be in the integration and design, then development of production tooling. I have looked into this deep enough to reassure myself that there is a clear path to prototyping functional iterations before committing to expensive production tooling. The scope of our proposal should NOT include production tooling. NOTE: I did not include the battery pack Power Supply. Sorry.. I see it as a series of battery-packs worn on a belt on the Hips, or in a vest, a la TV cameramen; or in a backpack. THE WHEELS are ambiguous at this point. They present the possibility of eating up design effort. This needs a closer look. My take: An integrated detector assembly along these lines will be really robust, really cheap, and really simple.....when we get done. You could beat it with a baseball bat with not much effect. Even early, hand made prototypes could demonstrate this. The challenge is to integrate. Comments? Robin Robin Lafever

  3. Two Transmitter configurations are presented. Both are arranged in a 16” X 16” X 10” volume With Receiver arrays along the edges. Flat ribbon cross-section transmitter coils (1 x 20 turns) Receiver arrays Rectangular cross-section transmitter coils (4 X 5 turns) Robin Lafever

  4. Flat ribbon cross section coil Corresponds to 1 X 20 turns, .10 dia. copper wire. This design concept assumes we can manufacture Dimensionally stable coil units using B-phase adhesives or potting techniques. Robin Lafever

  5. Flat ribbon cross section coil Set Note offsets to allow the coils to nest Robin Lafever

  6. Nesting….. Robin Lafever

  7. Nesting….. Robin Lafever

  8. Nesting….. Robin Lafever

  9. Nesting….. Robin Lafever

  10. Nesting….. Robin Lafever

  11. Robin Lafever

  12. Flat ribbon cross section coil Set Final configuration with Receiver Array Robin Lafever

  13. Receiver Array Note that Receivers pairs are Diagonally opposite. Robin Lafever

  14. Rectangular cross section coil Corresponds to 4 X 5 turns, .10 dia. copper wire. This design concept assumes we can manufacture Dimensionally stable coil units using B-phase adhesives or potting techniques. Robin Lafever

  15. Rectangular cross section coil Set Note offsets to allow the coils to nest Robin Lafever

  16. Nesting….. Robin Lafever

  17. Robin Lafever

  18. Robin Lafever

  19. Robin Lafever

  20. Nesting….. Robin Lafever

  21. Robin Lafever

  22. Rectangular cross section coil Set Final configuration with Receiver Array Robin Lafever

  23. Detector Assembly, Exploded Robin Lafever

  24. Mounting features for both the Transmitter and Receiver elements are molded into the housings. Housings are Blow-molded, hi-impact, plastic. Robin Lafever

  25. Mounting features for both the Transmitter and Receiver elements are molded into the housings. Housings are Blow-molded, hi-impact, plastic. Cutaway shows internal support and alignment features, as well as, double wall construction. Robin Lafever

  26. Mounting features for both the Transmitter and Receiver elements are molded into the housings. Housings are Blow-molded, hi-impact, plastic. Cutaway show internal support and alignment features, as well as, double wall construction. We can get superior shock absorption and light weight. Robin Lafever

  27. Mounting features for both the Transmitter And Receiver elements. Housings are Blow-molded, hi-impact, plastic. Robin Lafever

  28. Baseline configuration: 16” X 16” X 10” rectangular volume, nominal. Robin Lafever

  29. Cart Housing Double-walled, blow-molded, hi-impact, plastic . Robin Lafever

  30. Clever design may allow us to put the assembly features directly into the Cart Housing and eliminate the detector packaging.. Robin Lafever

  31. Robin Lafever

  32. Data screen Thumb button pads Electronics Housing Adjustable handles Integral wheels Robin Lafever

  33. Data screen Thumb button pads Electronics Housing Adjustable handles Integral wheels Robin Lafever

  34. Data screen Thumb button pads Electronics Robin Lafever

  35. Data screen Thumb button pads Electronics Housing Adjustable handles Detector Assembly Integral wheels Robin Lafever

  36. Data screen Thumb button pads Electronics Housing Adjustable handles Detector Assembly Integral wheels Robin Lafever

  37. Housing Data screen Thumb button pads Electronics Detector Assembly Adjustable handles Integral wheels Robin Lafever

  38. Housing Data screen Thumb button pads Electronics Detector Assembly Adjustable handles Integral wheels Robin Lafever

  39. Housing Data screen Thumb button pads Electronics Detector Assembly Robin Lafever

  40. Data screen Thumb button pads Electronics Detector Assembly Robin Lafever

  41. Robin Lafever

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