Engineering Science Systems and Control

Universal Systems Diagram In order to under stand how things work Engineers break them down to make them simpler to understand. This is called using the systems approach. Universal Systems Diagram Input Process Output

Universal Diagram of a Radio Radio Waves Sound Radio

Task Now complete Task 1.

E&L Boards To help engineers understand how a system works we sometimes use electronic boards of computer software to gain a better understanding.

Input Boards Light Sensor Temperature Sensor Moisture Sensor Push Switch Magnetic Switch Unit Input Voltage Unit Analogue signals can be any value They can be completely ON or OFF but can also be half or three quarters on (Think of a dimmer switch on a light)

Process Boards Transducer Driver Latch Inverter (NOT) Gate AND Gate Comparator OR Gate NAND Gate NOR Gate

Output Boards Bulb Buzzer Motor Relay Solenoid

Universal Diagram of a Radio Radio Waves Sound Radio

Universal sub-system diagram of a radio Radio Waves Sound Aerial Amplifier Loudspeaker

Task Now complete Task 2 and 3. Remember to check with your teacher before moving on and to look after the equipment that you are using.