Week -2

1. DOORBELL USING SOLENOID

PULSE GENERATOR: It is used to give the input signals and time is set for a period of every 2sec.

SIMULINK PS CONVERTOR: It is used to convert input signals as a physical signal.

SWITCH: If the external physical signal ps is greater than threshold value then switch is closed, otherwise switch is open.

BATTERY: The input and +ve and-ve terminals of a battery is connected to +ve and -ve terminals of the system.

SOLENOID: When a maximum load is applied to a plunger, the metal strip in the plunger gets completely compressed ans setes out the plunger to zero when load is removed.

IDEAL TRANSLATIONAL MOTION SENSOR: The positon and velocity is been calculated with respect to R & C ports.

SOLVER CONFIGURATION: It is used to set solver values for simulation.

ELECTRICAL REFERENCE: It is given for electrical circuits.

MECHANICAL ROTATIONAL REFERENCE: It is given to mechanical circuits and fixed to ground.

PS SIMULINK CONVERTER: It is used to convert physical signal as a simulink signal.

SCOPE & DISPLAY: It is used to display the output.

CONCLUSION:

• pulse generator is connected to a switch, power is driven by the switch from the battery ,here solenoid acts as electromagnet which consists of a metalic strip & gets compressed when a force is applied to it and then hits the bell and gives a sound for every 2sec of time period and sets to zero when load is removed.

OUTPUT:

From the graph we can absorb that the position and velocity gets increased for every 2sec and then decreases.

2.THERMISTOR TO SENSE TEMPERATURE AND HEATER TO TURN OFF & ON THE FAN:

SIGNAL BUILDER: It is used to generate signal according to the condition.

SIMULINK PS CONVERTER: It is used to convert input signals as a physical signal.

CONTROLLED TEMPERATURE SOURCE: Physical output signal is given to port S.

THERMAL REFERENCE: It is given to the controlled temprature source for reference.

THERMISTOR: It is ued to show NTC thermistor relation between temperature and resistance.

BATTERY: It is a storage device that provides required voltage.

RESISTOR: It is used to limit the current.

VOLTAGE SENSOR: It is used to sense the voltage across the current and is connected in parallel to the resistor.

ELECTRICAL REFERENCE: Given to the electrical circuits.

SOLVER CONFIGURATION: It is used to set solver values for simulation.

PS SIMULINK CONVERTERS: It is used to convert physical signals into simulink signals.

SWITCH: This block pass through input1 when input2 satisfies the seleced criteria, otherwise passes through input3.

CONTROLLED VOLTAGE SOURCE: It is used to controll a specify vltage at its output.

DC MOTOR: It is an electromechanical blocks which takes electrical input and produces mechnical output.

IDEAL ROTATIONAL MOTION SENSOR: It measures angular velocity in a mechanical rotational output.

MECHANICAL REFERENCE: It is connected to mechanical translational motion.

SCOPE: It is an output block which is used to plot the values.

INPUT:

Here,the input is set to different temperature in different time period.

OUTPUT: