Page 348 - Design for Six Sigma a Roadmap for Product Development
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318 Chapter Nine
New design
Detector
substance
Leakage
Leakage (1)
1
Refrigerating unit
Refrigerating unit
It is proposed to use a layer of detector substance on critical areas. The
external surface is coated with heat-conductive paint (mixed with a detector
substance). The paint swells and changes color to indicate the location of
refrigerant leaks, that is,
Optical Leakage
Eye
With Color
Examples 9.16 Measuring Surface Area
Old design
Biological Biological object (1)
object
1
It is necessary to measure the surface area of biological specimens, such as
insects. (Disadvantage: Small size and complex surface relief make mea-
surement difficult.)
New design
