ExpEYES/C2/Panel-connections-and-software-interface/English-timed

Time	Narration
00:01	Hello everyone.Welcome to this tutorial on Panel connections and Software interface
00:07	In this tutorial, we will learn about: Various terminals on the Panel Accessory set and Software interface.
00:17	We will also learn to demonstrate: Ohm's law Effective resistance in series combination Effective resistance in parallel combination and Show the circuit diagrams of our experiments.
00:33	Here I am using, ExpEYES version 3.1.0 Ubuntu Linux OS version 14.04
00:43	To follow this tutorial, you should be familiar with: ExpEYES Junior interface.If not for relevant tutorials, please visit our website.
00:55	Let's discuss about the utilities of ExpEYES Junior device.
01:00	Device can be used to carry out experiments in: Higher Secondary Undergraduates Electrical and Electronics Engineering courses.
01:12	It can be used in fields such as: Electricity Sound Magnetism Light Diode Transistors and others.
01:23	Let's begin with terminals on the top Panel.Panel has four ground (GND) terminals.At these terminals the voltage is zero volt(0V).
01:35	Voltage measured at other input terminals, is with reference to ground(GND) terminals.
01:42	Input terminals A1 and A2 can measure voltage between -5V to +5V.
01:51	On the left, IN1 and IN2 terminals can measure voltage between 0 to 5V.
01:59	'IN1 also measures capacitance up to 5000pF(pico farads), with good accuracy.
02:07	PVS is Programmable voltage source. It is used to deliver voltages *in 0-5V range with a minimum step of 1.25mV(milli volts)and can deliver up to 5mA(milli amps).
02:25	SINE delivers a constant frequency around 150 Hz, at an amplitude around 4volts.
02:33	SEN is mainly used for connective sensor elements like photo-transistors, Light Dependent Resistors, Thermistors etc.
02:45	It is a voltage measuring terminal with an internal 5.1k resistor connected to 5 volts.
02:52	SQR1 and SQR2 terminals can generate Square waves of “0” to “5V” with a frequency from 0.7 Hertz to 100 Kilo Hertz.
03:05	OD1 produces a digital output as 0V or 5V, under Software control.
03:13	MIC captures sound from an external sound source.
03:18	CCS means Constant Current Source.
03:22	It gives 1mA(one milli Amps) current with a load resistor of 3kΩ(kilo ohms), since voltage should be kept below 4 volts.
03:31	Inverting amplifier is used to amplify external voltages. It may be used to amplify external condenser or mic output.
03:42	Along with the device some accessories are provided
03:47	Accessories list include: Two Piezo Electric Discs Two 3000 turns coils DC Motor
03:56	Screwdriver Set of four permanent Magnets Four Crocodile Clips with wires Transistor
04:05	* Two silicon diodes LDR & Thermistor Capacitors
04:12	* Four 5mm LEDS Four wires Resistors.
04:19	This is a graphical user interface(GUI) of ExpEYES Junior. GUI is known as Plot window.
04:28	On the left side of the Plot window, we have input terminals:A1, A2, IN1, IN2, SEN, SQ1 and SQ2.
04:40	ATR, WHI and others trigger sources are used to fix the waveform.
04:48	We will discuss about ATR, WHI and others trigger sources in the upcoming tutorials.
04:56	CH1, CH2, CH3, CH4 are plotting channels with sliders.
05:04	Channel sliders on the right are used to move the wave form on the Plot Window.
05:11	Click on A1 and drag to CH1. We can see the connection information in the box below.
05:21	Click on A2 and drag to CH2.We can see the connection information as before.
05:29	Drag channel CH2 to FIT.It shows the voltage and frequency of A2.
05:38	Drag CH2 to NML.It removes the display shown by FIT.
05:44	msec/div(milli second/division) represents time axis.
05:51	Volt/div represents volt axis.
05:56	Trig level is a trigger controller.
06:00	Click on CH2 and drag to DEL. It removes CH2.
06:07	Click on CH1 and drag to DEL.It disables the display of CH1.
06:15	FTR generates Fourier spectrum of the wave.
06:20	Under Setting Squarewaves we have a number of input and check boxes.
06:26	In this input box we can change the Frequency of the wave in Hertz,
06:33	This is to change phase difference, dphi in percentage(%).
06:38	In Set PVS= input box. we can enter the desired voltage value between 0 to 5V.Press Enter to set the value.
06:52	SQR1, SQR2 and BOTH check boxes are used to activate the frequency.Frequency can be changed using the slider.
07:04	Set State check boxes are used to control OD1 and CCS.
07:11	Measure C on IN1 button is used to measure Capacitance.
07:16	Measure R on SEN button is used to measure Resistance
07:21	Below the buttons we have a command window to type Python code.We will discuss about Python code in upcoming tutorials.
07:31	Save Traces to button to save traces as .txt files
07:37	We will discuss about LOOP check box, SCAN and XMG buttons in later tutorials.
07:45	EXPERIMENTS button displays list of experiments.Quit button is used to close the window.
07:53	Now I will demonstrate Ohm's law using the device and its interface.
07:59	In this experiment we will show: The dependency of voltage across a resistor and Verify Ohm’s law
08:09	The device is connected to the system.
08:12	In this experiment PVS is connected to IN1 through 2.2KΩ(kilo ohms) resistance.IN1 is connected to ground(GND) through 1KΩ(kilo ohms).
08:25	This is the circuit diagram for the connection.
08:30	Open the software interface.
08:32	In the Plot window click on IN1 to measure the voltage.
08:37	For PVS=1 Volt, the corresponding value of IN1 is 0.309 Volt. For PVS=2V, IN1 value is 0.619V For PVS=3V, IN1 value is 0.928V.
09:01	As an assignment, Change PVS values from 0 to 5 volts and Check the corresponding IN1 values.
09:10	Let us perform an experiment to check the effective resistance in series combination.
09:16	In this experiment we will show the voltage when resistors are connected in series.
09:23	In this experiment IN1 is connected to CCS CCS is connected to ground through a resistor
09:33	On the Plot window select the CCS check box. Click on IN1 to show the voltage.
09:42	This is the circuit diagram for the connection.
09:45	When 1 KΩ(kilo ohms) resistor is connected to CCS and GND, measured voltage is 0.979V.
09:54	Likewise, for 560 Ω(ohms) resistance, measured voltage is 0.543V.
10:02	For a series combination of 1 KΩ (kilo ohms)and 560Ω(ohms) resistances, measured voltage is 1.524V'.
10:14	Let us perform an experiment to check the effective resistance in parallel combination
10:21	In this experiment we will show the voltage when resistors are connected in parallel.
10:28	In this experiment IN1 is connected to CCS. CCS is connected to ground(GND) through a resistor.
10:38	This is the circuit diagram for the connection.
10:40	On the Plot window select the CCS check box. Click on IN1 to show the voltage.
10:49	The experiment is first carried out with 1000Ω(ohms) resistor then with parallel combination of two 1000 Ω(ohms) resistors.
11:01	This is the circuit diagram for 1000 Ω(ohm) resistance in parallel combination. The measured value of IN1 is 0.952V.
11:11	This is the circuit diagram for parallel combination of two 1000 Ω(ohm) resistors.The measured value of IN1 is 0.474V.
11:25	Again the experiment is carried out first with 2.2K Ω(kilo ohms) resistor then with parallel combination of two 2.2 KΩ(kilo ohms) resistors
11:38	This is the circuit diagram for 2.2K Ω(kilo ohms), resistance.The measured value of IN1 is 2.132V
11:48	This is the circuit diagram for parallel combination of two 2.2KΩ(kilo ohms) resistance.The measured value of IN1 is 1.063V
12:03	Let's summarize.
12:05	In this tutorial we have learnt, Various terminals on the panel Accessory set and Software interface.
12:14	We have also learnt to demonstrate: Ohm's law Effective resistance in series Effective resistance in parallel and Show the circuit diagrams of above experiments.
12:29	As an assignment, Measure the effective resistance using a combination of Series and Parallel resistors.
12:37	This video summarizes the Spoken Tutorial project.If you do not have good bandwidth, you can download and watch it.
12:47	We conduct workshops using Spoken Tutorials and give certificates. Please contact us.
12:55	The Spoken Tutorial Project is funded by NMEICT, MHRD Government of India
13:02	This tutorial is contributed by Kaushik Datta and Madhuri Ganapathi.This is Sakina Sidhwa. Thank you for joining.

Contributors and Content Editors

Pratik kamble, Sandhya.np14