Week -2
1) The blocks used for building mode of doorbell using solenoid block are as follows:-
1)Pulse generator:-this block is used to change amplitude,period,pulse width,phase delay
2)Simulink PS converter:-This block helps to convert simulink input signal to physical signal.
3)Battery:-. This block is used to provide energy
4)Switch:- switch is used to turn ON/OFF.
5)Solenoid:-This block shows electrical and mechanical characteristics of solenoid.
6)Electrical reference
7)Ideal translation motion sensor:-this block is used to convert variable measured between mechanical translation nodes into a control signal .
8)Mechanical translational reference
9)PS-simulink convert:-this blocks converts physical signal to simulink signal.
10)Scope:-This block is used to show the results.
RESULT:- As bell rings solenoid moves and it shows variation in the graph.Here when it rings it's time periods is given as 2 s it oscillates for some time then again it becomes constant.
In every 2 sec it is changing.For 2 sec when it is OFF and then released it oscillates then become constant.This process is going on.
2)The blocks used for making thermistor model are as follows:-
1)Signal builder:-This block is use to insert signal according to input conditions.
2)simulink-PS converter:-This block is used to convert simulink input signal to physical Signal.
3)Controlled temperature source:-This blocks provides temperature physical output .
4)Thermal reference:-This block is used to provide required initial conditions to connect thermal block for solver.
5)Solver configuration:-this block is used to sppecify solver parameters that model needs.
6)Battery:-This is used to provide voltage.
7)Resistor:-Opposes current.
8)thermistor:-shows NTC thermistor relation between temperature and resistance .
9)voltage sensor:-Used to measure potential difference across any electrical component.
10)PS-simulink converter:-converts physical signal into simulink signal
11)Switch:-Used to fullfill the condition.
12)scope:- for displaying result.
RESULT:From the graph when temperature increases voltage decreases.As per the given condition fan must be On when the temperature goes above 25°C or else it should be OFF.So here when it reaches on 10 sec fan gets On upto 30 secs because here its temperature is 27°C after that it again gets OFf on 30 secs.Here the temperature is 23°C.
