Transcript Conceptual Design

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Creativity is part of being an engineer.
Tendency to start with a single solution to a
problem and then pursue it as the only
possibility.
Need to be creative and generate a variety
possible designs.
Need to be able to evaluate different designs.
BE ABLE TO DEFEND YOUR DESIGN!
Companies want to employ innovative engineers.
Develop your engineering judgment.
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Have a questioning attitude
 Practice being creative
 Suspend judgment
 Allow incubation time
 Think like a beginner
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Search Externally
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Literature review
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Search and review existing products
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Benchmark similar products
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Interview experts
Search Internally
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Brainstorming/Brainwriting
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Nominal Group Technique
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Concept Table/Fans
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User
Interface
Display
Connectivity
& Expansion
Power
Size
CRT
Serial &
parallel
Battery
Hand-held,
Fits in
pocket
Touchpad
Flat Panel
USB
AC Power
Notebook
size
Handwriting
Recognition
Plasma
Wireless/Wire
d Ethernet
Solar
Power
Wearable
Video
Heads-up
display
PCMCIA
Fuel Cell
Credit card
size
Voice
LCD
Modem /
Telephone
Thermal
transfer
Flexible in
shape
Keyboard
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Three-stage Architecture
Thermal Sensing Conversion to
voltage
Op Amp
Thermistor
Design
RTD
Thermocouple
Transistor
Designs
Display
Seven-segment
LED’s
LCD
Analog Dial
Indicator
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Design
Temp to
Voltage
Conversion
Display
Analog
Dial
LED Bar
Level
Indicator
LCD
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Segment
LED
Transistor
Current
Mirror
Single
Transistor
Sensor
Op Amp
NonInverting
Inverting
Thermocouple
Tube and
Wire
Wire
Thermistor
RTD
Washer
Type
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Identify and list strengths and
weaknesses of each concept.
Analysis by assigning subjective
weights to strengths and weaknesses
(plus and minus factors) and sum
Select criteria (e.g., accuracy, cost,
size, availability, etc.)
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Select a current source circuit for current
measurement
VCC
VCC
+
VT
-
I
RTD
RTD
+ VT -
I
-
V
RREF
+
VT
-
RTD
I
R
+
RE
-VEE
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