Unit 1 What 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 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

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?

Process InputOutput 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