unit 1 what is a system?. basic definitions science - technology - a method of accumulating...
TRANSCRIPT
Unit 1What is a system?
Basic definitions
• Science -
• Technology -
A method of accumulating knowledge
The use of tools
Basic definitions
• Engineering -
• Biomedical Engineering - Using engineering principles and techniques to advance health
Application of science to fulfill human needs
Digestion animationDigestion animation
The Digestive System
Gastro-intestinal (GI) tract
The Digestive System
• How can we study the digestive system?
• Why might seeing inside someone's GI tract be important ?
• What are some challenges to seeing inside someone’s GI tract?
PillCam
Pill Cam animation link
Pill Cam footage
Capsule endoscopy
Pill Cam Promo video
PillCam
Switching over to theory
Can you think of an example of a system?
Let’s list ‘em
Collection of objects that function interdependently to
achieve a defined goal
System
System
1 -Optical Dome 2 -Lens Holder
3 -Lens 4 -Illumination LEDs
5 -CMOS (Complementary Metal Oxide Semiconductor )
6 -Battery 7 -Transistor ASIC
8 -Antenna
Is the Pillcam a system?
ProcessInput Output
General System Structure: Block Diagram
“entrance” “exit”Answers the need or goal
Process
Input Output
• electric energy• mechanical motion• information
information in the form of digital display – a number of steps
The Pedometer:System Block Diagram
• mechanical sensing• software for counting steps• pendulum action
1. Experiment: water temperature change
2. Analysis of the Thermometer system
3. Conclusions
Lab Activity
Beware!
Hot Water!
Safety First
• Designing the system should be adapted to the system’s goal and to the way of use
• Use should be convenient, easy and simple
• Information display should be appropriate, precise, reliable and clear
Matching Function to Purpose
• Engineering
• PillCam
• System
• Matching function to purpose
Conclusions
Next time: Characteristics of the system
Conclusions