Week -2
SIMULATION OF DOORBELL USING SOLENOID BLOCK.
AIM: To make a simulink model of doorbell using solenoid block.
CONDITIONS: switch should be closed for 2seconds and then released.
BLOCKS USED IN MODEL:
pulse generator
switch
battery
solenoid
idea translational motion sensor
mechanical reference
mechanical translational reference
electrical reference
scope
ps to simulink converter
constant
MODEL EXPLANATION
A pulse generator is given as input with the fpllowing specification the condition was that the bell is engaged for 2sec and released and then released same was implemented by giving time period as 4seconds the pulse width is given as 2sec phase delay was given as 2sec ,so the simulation starts from the unengaged condition of switch.
When the switch is on doorbell sounds for 2sec and off after 2seconds.
OUTPUT:The simulation of a doorbell is using solenoid block is done.
USE A THERMISTOR TO SENSE THE TEMPERATURE OF A HEATER.
AIM:to create a simulation model Using a thermsitor to sense the temperature of a heater and turn ON and turn OFF the fan.
BLOCKED USED:
Repeating sequence stair
Controlled temperature senser
thermistor
resistor
battery
switch
lamp
ps to simulink converter
simulink to ps converter
solver configuration
constant
voltage source
electrical reference
thermal reference
display
MODEL EXPLANATION:
Temperature source 20c from 0 to 10sec ,27c 10to 30sec ,23c 30 to 50sec,
fan condition :ON If the temperature is above the 25c off otherwise .
In this we should converter the tempeature in kelein scale. K,F.
In the repeating squence stair the values given are 293 300 300 295 295.
constant 293.
reference temperture is 298.15k
stop time for simulation of the model 50sec
output in the display is 0.01056
the output which we get in the display is feed to the switch for operation to get output in scope.
output wave mpdel is below
CONCLUSION: Creating a simulation model of thermistor to sense the temperature of a heater and turn off and turn on the is fan is done.