1. ADVANCED DESIGN APPLICATIONS UNIT 4: MANUFACTURING ADVANCED DESIGN APPLICATIONS UNIT 4: MANUFACTURING © 2015 International Technology and Engineering Educators Association Learning Cycle Five - Making Sense Of It All

2. The BIG Idea  Big Idea: In this learning cycle, students will interact with different types of sensors and learn about their functions within the manufacturing process. Knowledge of how manufacturing is shaped by these external factors will be essential for student success in the Manufacturing Unit Learning Cycles, Preliminary and Primary Challenges of the Advanced Design Applications course. © 2015 International Technology and Engineering Educators Association

3. Objectives  After completing this learning cycle, you will be able to:  Explain how sensors work and how they are used in manufacturing to control technological systems and devices.  Develop a program to logically control a set of inputs to achieve a desired outcome. © 2015 International Technology and Engineering Educators Association

4. Sensors What would you do if you touched a hot stove? What sense do we use to cross the street? What about to turn off the alarm clock? How can we find freshly-made popcorn? How can we pick the best ice cream? © 2015 International Technology and Engineering Educators Association www.clipartbest.com

5. Sensors Senses provide us with information  Similar to a manufacturing system  Inputs/Outputs  Processing power  Rely heavily on information processed in sensory system to safely function. © 2015 International Technology and Engineering Educators Association http://www.sonicscoop.com/site/wp- content/uploads/2013/03/InputOutputLOGO.jpg

6. Sensors Automobile Industry © 2015 International Technology and Engineering Educators Association Initial years relied on senses of the human body. More complex automobiles made it impossible to continue in this fashion. Today computers and other information systems have take the place of humans.

7. Sensors  Information gathering technology Heat sensors in ovens Motion detectors in security systems Thermostat controls in air conditioning Float sensor on an automatic ice machine © 2015 International Technology and Engineering Educators Association

8. Normally closed sensors Closed when not activated (turned on) Open when activated (turned off) Normally open sensors Open when not activated (turned off) Closed when activated (turned on) Depending on the type of device or sensor, the program may cause the opposite output than expected. © 2015 International Technology and Engineering Educators Association Exploration

9. Piezo Vibration Sensor  A piezoelectric sensor is a device that uses the piezoelectric effect, to measure changes in pressure, acceleration, strain or force by converting them to an electrical charge. © 2015 International Technology and Engineering Educators Association http://oomlout.com/parts/VIBS-01-datasheet.pdf

10. Photo Resistor  A photoresistor or light- dependent resistor (LDR) or photocell is a light- controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity. © 2015 International Technology and Engineering Educators Association http://en.wikipedia.org/wiki/Photo_resistor#mediaviewer/File:LDR.jpg

11. Temperature Sensor  These sensors use a solid-state technique to determine the temperature. They use the fact as temperature increases, the voltage across a diode increases at a known rate. © 2015 International Technology and Engineering Educators Association http://www.tandyonline.co.uk/media/catalog/product/cache/1/image/9df78ea b33525d08d6e5fb8d27136e95/t/m/tmp36_1.png

12. Boolean Logic © 2015 International Technology and Engineering Educators Association The AND Function Requires both sensors to be either activated or closed for output to be activated.

13. Boolean Logic © 2015 International Technology and Engineering Educators Association The OR Function Requires only one sensor to be activated or closed for the output to be activated.