Preliminary Design Solutions

Decision Matrices

Data Gathering Mechanics

Criteria

Cost

Accuracy

Ease of Setup

Weight

Adjustability

Ease of Integration w/ Res. Device

Total Score

Weighting

0.10

0.20

0.15

0.20

0.15

0.20

Motion Capture

2

($89.04)

3

1

Requires camera setup and calibration

3

Weightless, little to no contact

3

No glove, will “fit” all adults

3

No hand elements, most freedom

2.6

Sensor Glove

3

($81.90)

2

3

1

125 g

1

Sized (small, medium, large, etc.)

1

1.7

Hybrid Glove

1

($108)

2

3

2

35g

1

Sized (small, medium, large, etc.)

1

1.7


Resistance Mechanisms

Criteria

Cost

Adjustability

Design Complexity

Weight

Durability

Ease of Integration w/ Glove

Injury Risk

Total Score

Weighting

0.10

0.20

0.15

0.20

0.10

0.10

0.15

Elastic Bands

4

(<$30)

2

4

Simple

4

~30g

3

Degrades over time

4

Requires Hooks/Guides

4

Snap Hazard

3.5

Cable/ Motor

3

(~$34.92)

 

4

3

Circuitry

3

149g

4

Durable

3

Requires routing and motor housing

1

Pinch, entanglement, motor malfunction

3.0

Pneumatic

2

(~$41.00)

3

2

Air valves, pumps

1

~165g

2

Susceptible to leaks

2

Requires tubing and connectors

3

Overinflation, air leaks

2.15

MR Fluid

1

(~387.49)

4

1

Fluid containment

2

~120g

1

Sensitive to contamination

1

Complex integration

2

Leakage or skin irritatation

1.95