neil munroe, giff mezey, tim jaffe, ian bubb improved velocity measurement device
DESCRIPTION
Problem Statement The nominal speed of the rollers may not be accurate enough. For maximum control the actual speed of the paper must be known. Design TaskTRANSCRIPT
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NEIL MUNROE, GIFF MEZEY, TIM JAFFE, IAN BUBB
Improved Velocity Measurement Device
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Table of Contents
1. Description of the Design Task2. Design Process3. Design Assessment4. Prototype/Model5. Engineering Analysis6. Summary and Conclusions
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Problem Statement
The nominal speed of the rollers may not be accurate enough. For maximum control the actual speed of the paper must be known.
Design Task
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Design Task
Mission StatementCreate a device that can measure the actual
velocity of the paper in the printer Minimize cost Maximize sustainability
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Design Task
Customer Needs AssessmentInterview of iGen4 consultantHighest possible quality of pictureConsistent qualityHigh speed printing
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Design Task
Design SpecificationsMeasurement of actual speed of the
paperDetection of an 8.5” x 11” sheet of paperMoving at a velocity of 250 to 750 mm/sMeasure within a tolerance of .25%System cannot impact speed of the sheetMinimize cost
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Design Process
Concept GenerationVelocity measurement Devices
Lever Wheel Laser
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Design Process
Lever Velocity Measurement Device
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Design Process
Wheel Velocity Measurement Device
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Design Process
Laser Velocity Measurement Device
Δx
V=Δx/Δt
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Design Process
Screening Matrix
Lasers Wheels Levers
Cost - + +
Ease of Production
0 + +
Accuracy + - -
Sustainability
+ 0 0
Total: 1 1 1
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Design Process
Weight Lasers Wheel LeversCost 14% 1 4 5
Ease of Production
7% 3 5 4
Accuracy 70% 4 2 2
Sustainability
9% 4 3 3
Total: 100% 3.51 2.58 2.65
Weighted Matrix
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Design Process
Best Design: Laser Velocity Measurement DeviceAccurateDoes not affect paper speedCost effectiveMeets all requirementsFalls within constraints
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Prototype
CAD rendering
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Prototype
CAD Animation
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Engineering Analysis
Cost: Varies with number of sensors Cost estimates: $1000-3000 plus installation
Cost varies with size and accuracy All accuracy within .2%
Ease of use and installationReliabilitySustainability
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Summary and Conclusion
Through detailed research, we concluded the laser velocity system was the most cost effective method that fell within the constraints.
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Questions?