Week -2

1.DOORBELL USING SOLENOID BLOCK

Aim:To make a simulink model of doorbell using solenoid block.

Objectives:Pulse generator, switch,simulinkto ps converter, battery,solenoid,ideal transational sensor,solver configuration ,ps to simulink converter and scope.

Procedure : Initially take the pulse generator and give the switch closing time value,next scope to connect the pulse generatorit is connect to the switch, battery the negative terminal is connect to the switch,positive of battery terminal connect the solenoid C terminal and R terminal is connect to mechanical translational reference to ideal translational motion sensor R terminal P terminal is connected dispaly through ps to simulink converter and scope.

Result: Finally the result is shown in display block [1.806e-09] and the graphs is shown is shown in scopes.

2.THERMISTER MODLA

Aim:To Using a thermister to sense the temperature of a heater & turn on or turn off thr fan as per given conditions.

Objectives: Signal builder block,controlled temperature source,thermistor,voltage sensor,voltage source,electrical reference,switch,display,scope.

Procedure: Start with signal builder block and change the scales and temperature ranges then connect to the controlled tempetature range terminal S and teminal A is connect to thermal reference and terminal S is connect thermister input input and (+) is connect to DC(120V)voltage source (+) through voltage sensor and (-) terminal is connect to current sensor(+) through voltage sensor,current sensor (-)terminal is connect to (+) electrical reference through slover function and connect switch to scope.The display block is connected in between switch and sp converter.

Run the simulation for 50 seconds.

Result: succesfully run the simulation. value of result is shown in graphical way in the scope.