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Fiber Stretching Instrument

Fiber Stretching Instrument. Peggy Brown MAT Design Team University of Idaho http://seniordesign.engr.uidaho.edu http://www.appl-tech.com. Project Description. Design and fabricate an apparatus capable of stretching a fiber specimen. Establish and maintain a testing point for a laser.

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Fiber Stretching Instrument

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  1. Fiber Stretching Instrument Peggy Brown MAT Design Team University of Idaho http://seniordesign.engr.uidaho.edu http://www.appl-tech.com

  2. Project Description • Design and fabricate an apparatus capable of stretching a fiber specimen. • Establish and maintain a testing point for a laser. • Measure a uniform load of 5 grams. • Measure the deflection traveled • Be able to withstand a corrosive effect

  3. Design Alternatives: Motion System Alternative 1 Three motion systems were considered for the final design. Each ranges in complexity and price. Alternative 2 Alternative 3

  4. Decision Matrix: Motion System

  5. Design Solution Mechanical Design features • 56 pitch screw and backlash system • Light weight design Measurement components • Load measurement • GSO – 10 load cell • DPM – 3 load cell amplifier and display • Deflection measurement • E6S rotary optical encoder • ED3 rotary encoder display counter

  6. 56 pitch screw with backlash system • CNC machined • Left and Right threaded screw • Design used in micrometer • CNC Machined Brass nut and insert

  7. Design Solution Mechanical Design features • 56 pitch screw and backlash system • Light weight design Measurement components • Load measurement • GSO – 10 load cell • DPM – 3 load cell amplifier and display • Deflection measurement • E6S rotary optical encoder • ED3 rotary encoder display counter

  8. Light weight design • Spectroscope specimen platform constraints • Aluminum 6061 construction • Frame sides CNC machined to remove excess material • Weighs 4 pounds

  9. Design Solution Mechanical Design features • 56 pitch screw and backlash system • Light weight design Measurement components • Load measurement • GSO – 10 load cell • DPM – 3 load cell amplifier and display • Deflection measurement • E6S rotary optical encoder • ED3 rotary encoder display counter

  10. Loading • GS0 10 • Full scale value of 10 grams • Excitation voltage of 10 Vdc • Output of 1mV/V • DPM-3 • Capable of functioning with many measurement systems

  11. Design Solution Mechanical Design features • 56 pitch screw and backlash system • Light weight design Measurement components • Load measurement • GSO – 10 load cell • DPM – 3 load cell amplifier and display • Deflection measurement • E6S rotary optical encoder • ED3 rotary encoder display counter

  12. Deflection • E6S • Incremental rotary optical encoder • 100 counts per revolution (1:11200 inches : encoder counts in 4x mode) • Optical disk can be changed for better resolution • ED3 • Digital encoder counter • Six digit display • Capable of 4x counting mode

  13. Total Cost - $1,600.00 • Material and mechanical costs - $380.00 • Measurement components - $1,220.00 • 13 hours of CNC machining • 50 hours of manual mill machining • Many, many, hours of research, design, and shop preparations.

  14. Questions? MAT Design Team

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