Week -2

1st question :

PS-Simulink and Simulink-PS converter, Scopes, Displays, Pulse generator, electrical and mechanical references, solenoid, Battery, switch, ideal Transalation motion sensor, solver configuration. These are the following simscape and Simulink blocks that are going to use in this simulation.

PS-Simulink and Simulink-PS converter: These are basically the converter from Physical systems to Simulink signals and vice versa.

Scopes: Gives the plot of the output.

Pulse generator: is an analog input that has amplitude and frequency with which the input is transmitted.

Electrical and Mechanical references: is a reference block with which the system has a ground source as a base.

Solenoid: is an electromagnetic device that is represented as a block here.

Battery: is a device that has a negative and positive terminal for the electric circuit to be completed for an electric flow.

Ideal Translated motion sensor: It's a type of sensor which provides the position or velocity input for the system to generate output.

Solver Configuration: It's a type of block that acts as a complete equation for where f(x) = 0 where we find the value of x and generate the output which represents the block diagram as an equation.

Before we begin the simulation we need to setup an input parameter here in pulse generator where we delay seconds should be 2 secs with amplitude 1 and Pulse time should be 4 secs to make it in half with 50% pulse width.

And here is the Full simulation with all the simscape and Simulink block system.

Output:

2ND QUESTION:

Use a thermistor to sense the temperature of a heater & turn on or turn off the fan as per the below conditions:

we going to use the same procedure as above to simulate a thermistor to sense the temperature of a heater.

Thermistor: thermal resistor is defined as a type of resistor whose electrical resistance varies with changes in temperature. Although all resistor's resistance will fluctuate slightly with temperature, a thermistor is particularly sensitive to temperature changes.

Thermistors act as a passive component in a circuit. They are an accurate, cheap, and robust way to measure temperature. While thermistors do not work well in extremely hot or cold temperatures, they are the sensor of choice for many different applications. Following is the Simulink block assembly for Thermistor based heater. And with condition follows here as :

1. 0-10 sec temperature 293

2. 10-30 secs temperature 300

3. 30-50 secs temperature 296

and you can see these details in plot basis in signal builder block where the input is inserted with these signals.

NOTE: Before we run we need to provide an integrated input in the Simulink-PS converter block to be able to read the for systems.

Simulink and simscape block design:

after running for 50 secs we need to provide the display as an input to the switch for ON and OFF conditions.

OUTPUT: