PDPU SBC: WORKSHOP ON CATHODE RAY OSCILLOSCOPE

WORKSHOP ON CATHODE RAY OSCILLOSCOPE

EVENT REPORT

Name of Event: Cathode Ray Oscilloscope

Date of Event:  23rd September,2016

Duration                   : 4:00-5:30

Venue                         : E EDC LAB

Organizers: 1. MEET SOMANI

 

EVENT DESCRIPTION: CRO is a type of electronic test instrument that allows observation of constantly varying signal voltages, usually as a two-dimensional plot of one or more signals as a function of time. Other signals (such as sound or vibration) can be converted to voltages and displayed. Oscilloscopes are used to observe the change of an electrical signal over time, such that voltage and time describe a shape which is continuously graphed against a calibrated scale. The observed waveform can be analysed for such properties as amplitude, frequency, rise time, time interval, distortion and others. Modern digital instruments may calculate and display these properties directly. Originally, calculation of these values required manually measuring the waveform against the scales built into the screen of the instrument.

 

EVENT MOTIVE:

As engineering world is moving in the direction of Automation and measurements

We need measure and record a given input wave and its waveform. To study details of any waveform that is voltage vs time graph and relation with frequency.

Gives an overview about basic functioning of Cathode Ray Oscilloscope.

EVENT OVERVIEW:

CRO is a type of electronic test instrument that allows observation of constantly varying signal voltages, usually as a two-dimensional plot of one or more signals as a function of time. Other signals (such as sound or vibration) can be converted to voltages and displayed. Oscilloscopes are used to observe the change of an electrical signal over time, such that voltage and time describe a shape which is continuously graphed against a calibrated scale. The observed waveform can be analyzed for such properties as amplitude, frequency, rise time, time interval, distortion and others. Modern digital instruments may calculate and display these properties directly. Originally, calculation of these values required manually measuring the waveform against the scales built into the screen of the instrument.

Amplitude-Peak-to-peak amplitude is the change between peak (highest amplitude value) and trough (lowest amplitude value, which can be negative).

waveform is the shape and form of a signal such as a wave moving in a physical medium or an abstract representation.

Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. The period is the duration of time of one cycle in a repeating event, so the period is the reciprocal of the frequency.

The time per division in CRO that is basically multiplier for voltage axis and time axis. By the help of this we can get to know the input voltage and frequency through reading the graph. It gives the idea of what how many divisions on graph corresponds to what value and by what value we should multiply anything to get actual value.

CRO deals with a wide area of application but here CRO was used to study just the waveform of voltage vs time and its variations according to the time per division and voltage per division.

That is scaling and shaping of waveform with different frequencies and voltages.

Number of Participants:30(excluding committee members) (15 team)

Photographs: