Basic techniques of waveform measurement using an oscilloscope copied from. An edge trigger can be set to catch on a rising or falling edge or both. When your circuit is not working, it will help you figure out what is going on. I needed an oscilloscope to debug my radar arduino library. After plugging in the oscilloscope, take a look at the front panel. The concepts presented in this primer will provide you with a good starting point in understanding oscilloscope basics and operation. Basic techniques of waveform measurement using an oscilloscope. Use the tds3034b oscilloscope to measure the amplitude, frequency and period of signals. The heart of the oscilloscope is a cathode ray tube or crt, of the sort you have already studied. Service information from hewlettpackard marchapril 1980 text, image compilation, and document reassembly by perry sandeen 32016 hp editors note.
Basic oscilloscope operation ac electric circuits pdf version. So many of the experiments in the advanced labs make use of oscilloscopes and function generators that it is useful to learn their general operation. Power up the oscilloscope by pushing the power button. Debugging emi using a digital oscilloscope summary. When set to 1x, the oscilloscope will display the actual signal to scale. Then the test leads must be connected to the oscilloscope inputs. It is necessary to know how to use an oscilloscope properly to be able to make the best use of it. When using an oscilloscope, you need to adjust three basic settings to accommodate an incoming signal.
I show the basics of the basics about how to use your digital scope. Measuring relative phase between two waveforms using an. Sampling oscilloscope questions and answers oscilloscopes to emulate a sampling oscilloscope. Using an oscilloscope tips and tricks for someone using an oscilloscope for the first time. Energy, vibrating particles, and other invisible forces are everywhere in our physical universe. The oscilloscope oscilloscope operation x vs y mode an oscilloscope can be used to measure voltage. An introduction to oscilloscope probes technical articles. In the video, i talk about why 10x probes are useful, how to tune the compensation capacitor in a 10x probe, how to measure periodic signals. Sampling oscilloscope questions and answers expensive. Function generators are signal sources which provide a speci ablevoltage applied over a speci abletime, suchas a \sine wave or\triangle wave signal. The oscilloscope applies a lowpass filter to the input. Push the frontpanel default setup button to set the oscilloscope to a known starting point. Connect the output of the bk 4040 to one of the inputs of the agilent oscilloscope.
This article is based on a threepart videotape series hp pin 90741d originally developed to. Feb, 2017 in the video, i talk about why 10x probes are useful, how to tune the compensation capacitor in a 10x probe, how to measure periodic signals, and how to set up a single capture trigger for a. A specific circuit in the oscilloscope creates repeated moving signals from left to right. An oscilloscope is analogous to a camera that captures signal images that we can then observe and interpret. It is generally useful in cases where there is a rapidly changing voltage as a function of time. Set the bk 4040 to generate a sine wave, set the frequency to 50 hz, and using a voltmeter set the output voltage to 1 volt peak. Basics of oscilloscopes how to use an oscilloscope rigol.
The oscilloscope is switched on by depress the onstby pushbutton before. The voltage vertical shift knob can then be used to set the vertical origin. The controls of a typical oscilloscope can be grouped into three major categories. A pulse trigger tells the scope to key in on a specified pulse of voltage. But the setup, use, and interpretation of collected data can be overwhelming to many and the wealth of new capabilities enabled by digital oscilloscopes are often unknown. Well be using the gratten ga1102cal a handy, midlevel, digital oscilloscope as the basis for our scope discussion. Attenuation probes serve to multiply the voltage measurement range of the oscilloscope by using an internal resistor that, when used in conjunction with the input resistance of the scope, creates a voltage divider.
Bench top scopes are incredibly useful, but they can be large and bulky, and often far too expensive for many users. On digital scopes, there may be a pushbutton, but you may have to locate the options in a menu. An oscilloscopes primary function is to provide a graph of a signals voltage over time. Basic oscilloscope operation worksheet ac electric circuits. How to use an oscilloscope mechanical and aerospace. Oscilloscope uses include analysis of electronic equipment. By using a transducer the scope can make a plot of the changes in almost any measurable quantity. Check that the device under test is switched off and connect the test leads to the test points.
Practical electronicsoscilloscopes wikibooks, open. Currently i am using tps2024 from tektronix which is a 4 analog channel isolated oscilloscope. Then, read the manual provided with your oscilloscope to learn specific information about how to use it in your work. Measuring the voltage with your oscilloscope provides basic information about the signal, however oscilloscopes often offer many more advanced tools to further analyze your signal. The oscilloscope vision is the art of seeing things invisible. Cro gives the visual representation of time varying signals. This tutorial will guide you through the basics of using an oscilloscope, it is meant for someone with very little or no experience with electronics or oscilloscopes.
How to measure voltage with an oscilloscope keysight. Find these and other hardware projects on arduino project hub. Method oscilloscope requirements waveform requirements. Here are a few hints that will make using the oscilloscope controls easier. For example, if you want to verify that the output from a pin of an integrated circuit is. To learn how to make basic measurements of voltage and period using an oscilloscope. The oscilloscope is an instrument that basically displays the graph of an electrical signal, usually voltage as a function of time. The probe tip is connected to the signal and the grounding clip is connected to a reliable grounding point.
In the following figure, the same sine wave is displayed. An oscilloscope is a device that draws a graph of a voltage over time, or a graph of the relationship between two different voltages. The first lesson in the how to use an oscilloscope series. How to use an oscilloscope each station includes an oscilloscope with two probes. The oscilloscope is an instrument that measures voltage over time. This guidebook is useful to those with little knowledge of oscilloscopes as well as the expe. Probe compensation before using the oscilloscope probe, the oscilloscope must be calibrated, or compensated, to account for the nonideal effects that the probe has on voltage measurements. Understanding how to measure voltage with an oscilloscope is the first step to uncovering the powerful measurement capability your oscilloscope offers.
Lab preparation this lab is an introduction to the use of the oscilloscope to measure time dependent electrical signals. The voltage drop is amplified and used to deflect an electron beam in either the x horizontal or y vertical axis using an electric field. Inorder to upgrade the oscilloscope we are looking for. A scope samples the voltage and displays it on a screen that is marked with a grid in centimetres. An edge trigger is the most basic form of the trigger. Once you have an oscilloscope, there are basic things you need to do to set it up and begin using it. Check out my new article on how to build an arduino oscilloscope with 7 lines of code i needed an oscilloscope to debug my radar arduino library the code worked perfectly when it was not in arduino libraryform. By using special measurement, the student will learn the capability, and limitation of time domain measurements, by oscilloscope. Its main advantage over ets is its ability to capture pretrigger as well as posttrigger data, but this is at the expense of the longer and less predictable time needed to accumulate the required number of samples. The display is typically the largest part of the device, and can be either an lcd or crt screen. Then switch on the instrument and afterward the device under test. Oscilloscopes are a type of signal analyzerthey show the experimenter a picture of the signal. The basic operation and use of an oscilloscope require users to have a good idea of how to use an oscilloscope. Using an oscilloscope tips and tricks for someone using an oscilloscope for the.
To familiarize oneself with the use of the agilent s4622a oscilloscope in conjunction with the bk 4040 function generator 1. From the vertical gain in voltscm we can measure the. At this point, it is worth reminding ourselves what a waveform is. Most everyone has seen an oscilloscope in use, in the form of a heartrate monitor electrocardiogram, or ekg of the type seen in doctors offices and hospitals. Some introductory exercises for students in the advanced labs introduction so many of the experiments in the advanced labs make use of oscilloscopes and function generators that it is useful to learn their general operation. Knowing how to use an oscilloscope is very useful when building electronic circuits. Your oscilloscope may have other sections, depending on the model and type. The purpose of the laboratory is to develop a skill needed to use basic laboratory equipment. As described at the beginning of chapter 4oscilloscope systems and controls, the front panel is typically divided into three main sections labeled vertical, horizontal, and trigger. Basics of oscopes an introduction to what, exactly, oscilloscopes are. A medical researcher uses an oscilloscope to measure brain waves.
In order to start from a uniform setting, reset the oscilloscope to its factory default values by pressing the saverecall button, and then using the softkeys to choose the \factory default setup. Oscilloscopes also come in analog and digital types. This capability is widely used in science and technology. This is basic presentation on lab scopes for the ones just getting started but may be and for those technicians wanting to refresh their basic knowledge of using an oscilloscope for diagnostics. To understand how to use an oscilloscope, users must understand all oscilloscope controls, such as vertical sensitivity, beam finder, and delayed sweep controls.
An oscilloscope s primary function is to provide a graph of a signals voltage over time. The main purpose of an oscilloscope is to graph an electrical signal as it varies over time. Using a smart gpu2, a smart shield and arduino we created a simple touchscreen oscilloscope. The oscilloscope is a particularly useful item of test equipment that can be used for testing and faultfinding a variety of electronics circuits from logic circuits through analogue circuits to radio circuits. In order to use an oscilloscope to its best advantage, the technician and engineer should have a basic understanding of how an oscilloscope works as well as a good understanding of the oscilloscopes controls, features, and operating modes. This document covers four methods and summarizes the advantages and limitations of each. Measuring the voltage with your oscilloscope provides basic information about the signal, however oscilloscopes. Then press the ch1 and ch2 buttons to turn on both of these channels. Swift 16671745 objective to learn to operate a cathode ray oscilloscope.
At its simplest level the oscilloscope allows users to visualize the behavior of a signal by displaying its voltage over a time period. Oscilloscope is an electronic test instrument that allows projection of voltage signals to be displayed and learned. Xyzs of oscilloscopes the oscilloscope is an essential tool if you plan to design or repair electronic equipment. How to use an oscilloscope build electronic circuits.
How to use an oscilloscope with an ac source youtube. This clips shows how to use an oscilloscope to measure the frequency and voltage of a signal from an ac source. Oscilloscope diagnostics using picoscope software pico technologys advanced diagnostics software is always on hand to help you, no matter what your experience of capturing component waveforms is. This waveform is displayed by connecting a particular signal on the device under test dut to the oscilloscope using a probe. This arduino oscilloscope is perfect if you need an oscilloscope right now, but all you have is an arduino update. Oscilloscope measurement 1 objectives this experiment deals with basic and advanced time domain measurement. An analog oscilloscope works by directly applying the input voltage i.
A shortish guide to using an oscilloscope an oscilloscope is a test instrument that allows you to see how the voltage at a point in a circuit varies with time. The screen displays the signal voltage, with vertical and horizontal reference lines. The xyzs of oscilloscopes pdf a great indepth introduction to oscilloscopes. The following steps will describe how to automatically create a stable oscilloscope display using a 1 khz, 5 v pkpk square wave. On older analog scopes, these are mostly controlled by a dedicated switch for each function. An oscilloscope is a test instrument that allows you to see how the voltage at a point in a circuit varies with time.
Mar 04, 2015 so i want to pass those simple things on to you, so that you can start using an oscilloscope on your own. These are the three main functions that are used to set up an oscilloscope. The use of these controls is described in the following sections of this lab. When set to 10x, the oscilloscope reading will be one tenth of the actual signal. Question 1 an oscilloscope is a very useful piece of electronic test equipment. If you are using an oscilloscope for the first time, read this book to get a solid understanding of oscilloscope basics. Anatomy of an oscope an overview of the most critical systems on an oscilloscope the screen, horizontal and vertical controls, triggers, and probes. Oscilloscopes are used to graphically display timevarying signals, with time as the independent variable on the xaxis and the dependent variable, such as voltage or current, on the yaxis. Primer xyzs of oscilloscopes university of colorado boulder. Other oscopes may look different, but they should all share a similar set of control and interface mechanisms.
It does this by measuring the voltage drop across a resistor and in the process draws a small current. Emi debugging with an oscilloscope enables correlation of interfering signals with time domain while maintaining very fast and lively update rate. It will key the oscilloscope to start measuring when the signal voltage passes a certain level. Occasionally during the nostart, if the ignition key is left in the on. This is useful for measuring such things as clock frequencies, duty cycles of pulsewidthmodulated signals, propagation delay, or signal rise and fall times. An oscilloscope traces out the movement of electrons through a circuit. Math operations most oscilloscopes can perform at least two mathematical operations on the waveforms. The modern oscilloscope with hardware ddc and overlapping fft is capable of far more than a traditional oscilloscope.
The oscilloscope is arguably one of the most useful general purpose tools ever created for use by electronic engineers. Such an instrument is obviously useful for the design and. Sep 30, 2012 the first lesson in the how to use an oscilloscope series. Beginner oscilloscope tutorial contd once youve learned the basic oscilloscope controls, here are a few other things that you should know about. Measuring relative phase between two waveforms using an oscilloscope overview there are a number of ways to measure the phase difference between two voltage waveforms using an oscilloscope. Check out my new article on how to build an arduino oscilloscope with 7 lines of code. So many of the experiments in the advanced labs make use of oscilloscopes and function. Oct 30, 2015 this arduino oscilloscope is perfect if you need an oscilloscope right now, but all you have is an arduino. In particular, proper grounding is very important for safety reasons. If a technician reads the voltage change against time on the. Smartgpu2 arduino oscilloscope project showcase by vizic technologies. Oscilloscope lexicon a glossary covering some of the more common oscilloscope characteristics.
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