Week -2
AIM:
- To make a Simulink model of doorbell using solenoid block and create a situation where the switch is closed for 2sec and then released. observe the physical movement of the plunger
- To use a thermistor to sense the temperature of a heater & turn on or turn off the fan.
- Temperature source: 20C from 0 to 10 sec, 27C from 10 to 30 sec, 23C from 30 to 50 sec.
- Fan condition: ON if the temperature above 25C, OFF otherwise
doorbell simulink model:
procedure:
- pulse generator used to give the input of the circuit
- Simulink-ps converter used to convert to physical signal to switch
- the battery unit gives the power supply of the total circuit
- A solenoid is a device comprised of a coil of wire, the housing, and a moveable plunger (armature). When an electrical current is introduced, a magnetic field forms around the coil which draws the plunger in. More simply, a solenoid converts electrical energy into mechanical work.
- motion sensor to sens the solenoid and output have given to the scope
output:
thermistor simulink block:
procedure:
- signal builder to give the input signal to thermistor through controlled temperature source
- voltage sensor to sense the voltage across the resistor
- the switch to set our the condition
- the output to show the scope
input:
output:
