Edexcel international gcse physics student book sample chapter. Safety in the science lesson this book is a textbook, not a laboratory or practical manual. Already this first instrument contained an impressive number of achievements and innovations in circuitry to be found in every oscilloscope to this date witnessing a profound understanding of the fundamentals of electronics. Aqa p2 electricity gcse physics 10 lesson plans and powerpoints. Oscilloscope, trace, voltsperdivision, alternating current, ac, direct current, dc. Jun 14, 2012 abramson, albert 1995, zworykin, pioneer of television, university of illinois press, isbn 0252021045 burns, r. To measure the phase difference in radians, the horizontal length of one wave in cm must also be known the period. The main purpose of an oscilloscope is to graph an electrical signal as it varies over time. Gcse physics specification mppemock papers, past papers. It not only allows us to see the shape of the waveform, but also to. A signal the yellow sine wave in this case is graphed on a horizontal time axis and a vertical voltage axis. While that is the standard application, a second voltage can be applied to the horizontal deflection plates instead of the timing ramp voltage to produce an xy plot. While its warming up check the following switches to make sure theyre set correctly. Simple treatment of the cathode ray oscilloscope in a cathode ray oscilloscope, cro, the electron beam is directed towards a fluorescent screen.
Swift 16671745 objective to learn to operate a cathode ray oscilloscope. Figure 1 is a simplified diagram of a cathode ray oscilloscope. Make common electronic measurements with a digital oscilloscope. Abramson, albert 1995, zworykin, pioneer of television, university of illinois press, isbn 0252021045 burns, r. Each horizontal division on the oscilloscope screen represents a time of 0. On older analog scopes, these are mostly controlled by a dedicated switch for each function. Turn your oscilloscope on and let it warm up for a few seconds. 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. Xyzs of oscilloscopes the oscilloscope is an essential tool if you plan to design or repair electronic equipment. While that is the standard application, a second voltage can be applied to the horizontal deflection plates. In a tv, electron beams are made to scan back and forth across a screen coated on the back with special chemicals called phosphors. It seems to be mostly an analysis of a bunch of scopes and other test equipment that were for sale some years or decades ago.
Introduction to oscilloscopes lab experiment laboratory experiment introduction objectives 1. On digital scopes, there may be a pushbutton, but you may have to locate the options in a menu. Primer xyzs of oscilloscopes university of colorado boulder. Aug 29, 2001 the fourth edition of this comprehensive gcse physics text has been revised to cover the latest gcse specifications. The oscilloscope and the function generator physics 123253. Set its frequency to about 30 khz and its amplitude to about 1 v. There are many types of oscilloscopes out there, and each is a little different. It has many uses, including voltage measurement, observation of wave forms, frequency comparison and time measurement. Using an oscilloscope tips and tricks for someone using an oscilloscope for the first time. 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. Xyzs of oscilloscopes pdf 64p this book provides a solid understanding of oscilloscope basics. Purpose understand, read, and use the controls and features of an oscilloscope.
I want one that will work well for an ee student, only cost around a couple hundred bucks, and be sufficient for the first couple of years as an engineer. Jul 16, 20 a quick video looking at how to read oscilloscopes and among other things how to find frequency from the oscilloscope trace. Student book edexcel international gcse 91 physics. I also bought this book to help understand how to use my new oscilloscope. Push the frontpanel default setup button to set the oscilloscope to a known starting point. These diagrams show oscilloscope traces of three sounds. Equivalent time sampling method of sampling used on a dso, wherein sampling is synchronized with the trigger signal, usually one sample per cycle of the input. Such an instrument is obviously useful for the design and. 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. The heart of an oscilloscope is a cathode ray tube, similar to that used in. The cathode ray oscilloscope schoolphysics welcome.
Where the wave goes above the zero line, the current flows forwards. Gcse physics what does alternating current look like on a. Experiment 7 ac voltages, frequency and the use of the. Note that you can also control the horizontal position of the traces. The oscilloscope is arguably one of the most useful general purpose tools ever created for use by electronic engineers. Sensors can convert these forces into electrical signals that. Nov, 2011 students use the graphs to complete traces for loud, quiet, high and low sounds.
Input connected to ground zero volts and timebase switched off, oscilloscope trace is a spot in the middle of the screen. In the first part of this experiment, well try a few different things with the oscilloscope to help you become more familiar with it. Digital storage oscilloscope dso 4210 rue jeanmarchand, quebec, qc g2c 1y6, canada phone. Understand the block diagram and basic controls of a digital oscilloscope. Oscilloscopes physics physics p2 chapter 5 hwk help resistant materials rm dt gcse.
Oscilloscope lexicon a glossary covering some of the more common oscilloscope characteristics. The hp54645d oscilloscope can accept two voltagesignal inputs a1 and a2. If you have any improvements or comments please let me know so i can adjust them. Gcse science physics aqa p2 ac dc and the national grid. By setting the oscilloscope in parallel with various components in a circuit, voltage across the component can be accurately read and. Using an oscilloscope notes for as level physics teaching. The oscilloscope is a tool commonly used by engineers and technicians to analyze and. On a double beam oscilloscope the phase difference in cm is be measured along the timeline between similar points on each wave.
Long a standard tool in the electronics shop, the versatile oscilloscope uses an electron beam to trace the voltage as a function of time. The cathode ray oscilloscope this versatile instrument was developed by brown in 1897 from the cathode ray tube. When set to 1x, the oscilloscope will display the actual signal to scale. These are some notes and pictures ive put together and collected on using an oscilloscope for as level physics. Oct 22, 2019 a traditional oscilloscope works in almost exactly the same way as a traditional cathoderay tube television.
A quick video looking at how to read oscilloscopes and among other things how to find frequency from the oscilloscope trace. Hello everyone, im trying to acquire a used oscilloscope that i can setup on my workbench at home. Build a cheap oscilloscope and sensor probes for physics. Theory the oscilloscope, or scope for short, is a device for drawing calibrated graphs of voltage vs time very quickly and conveniently. The fourth edition of this comprehensive gcse physics text has been revised to cover the latest gcse specifications. Where the beam hits the screen, the coating on the screen absorbs the energy from the electrons and releases the energy as light a dot appears on the screen. Energy, vibrating particles, and other invisible forces are everywhere in our physical universe. Oscilloscopes the two controls on an oscilloscope we are interested in are.
Introduction to the oscilloscope saddleback college. View the latest edition of gcse physics for you and many more books by keith. Dual trace an oscilloscope having two traces to display channel 1 and channel 2 signals simultaneously. Explaining physics emphasizes the applications and social effects of physics, and extends its treatment of energy and electronics. The hp54645d oscilloscope an oscilloscope is a device that graphs voltage versus time. The display is generated by a sweeping electron beam striking a fluorescent screen, the same principle behind common television displays. Free oscilloscopes books download ebooks online textbooks. Most scopes produce a twodimensional graph with time on the xaxis and voltage on the yaxis. Good oscilloscope for an ee student physics forums.
An oscilloscope scope for short can be used to see an electrical signal by displaying a replica of a voltage signal as a function of time. While some oscilloscopes now use liquidcrystal displays lcds, many including the ones you will use still use a cathoderay tube crt. Gcse physics for certification june 2014 onwards version 1. The oscilloscope vision is the art of seeing things invisible. Phy 124 the oscilloscope stony brook physics laboratory.
The oscilloscope is a very widely used laboratory instrument frequently used to give a visual display of timevarying voltages. Beginner oscilloscope tutorial contd once youve learned the basic oscilloscope controls, here are a few other things that you should know about. Electricity cathode ray oscilloscope alevel physics tutor. The purpose of this lab is to introduce students to the basic tools used by engineers and technicians in analyzing electronic equipment.
This book is not complete in any sense of the word. Power up the oscilloscope by pushing the power button. Isaac physics a project designed to offer support and activities in physics problem solving to teachers and students from gcse y11, through to university. Since its invention more than 100 years ago, new types, features and functionalities have been introduced. Aqa physics phya1 24 may 2016 resit exam discussion thread aqa as physics unit 1 20th may, unit 2 9th june 2014 changing to square wave on oscilloscope. A traditional oscilloscope works in almost exactly the same way as a traditional cathoderay tube television. Students use the graphs to complete traces for loud, quiet, high and low sounds.
Anatomy of an oscope an overview of the most critical systems on an oscilloscope the screen, horizontal and vertical controls, triggers, and probes. This book has been prepared for all users of oscil. Oscilloscope displays 91 gcse physics ocr, aqa, edexcel. The picture above shows two complete cycles of the wave displayed on the cro. We also work with a number of leading publishers who publish textbooks and. Theory the oscilloscope is used as a tool for testing electrical components and circuits. The cathode ray oscilloscope physics and astronomy. The aqa gcse science textbooks are in the aqa approval process. The user can control the scale of both the time and the voltage axes. The features the perfect grounding for students intending to take their studies to a more advanced level, explaining physics contains all the essential concepts required by students studying physics within any. Oscilloscopes and sound sound gcse physics single science. When set to 10x, the oscilloscope reading will be one tenth of the actual signal. Oscilloscope traces using an oscilloscope to investigate a changing potential difference gcse keywords.
645 797 720 446 214 1319 868 1122 1508 478 108 733 468 1115 1017 73 573 1311 162 418 1023 571 761 289 505 914 1522 1280 1319 311 234 1226 737 217 429 983 971 1478