FoodLiving Outside Play Technology Workshop Use Your Laptop as Oscilloscope by saftari on May 26, 2013 Table of Contents Use Your Laptop as Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Intro: Use Your Laptop as Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Step 1: Make Your Own Oscilloscope Using Your Laptop Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Step 2: Electronic scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Step 3: The Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Step 4: Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Related Instructables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Advertisements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 http://www.instructables.com/id/Use-Your-Laptop-as-Oscilloscope/ Ignition systems.Intro: Use Your Laptop as Oscilloscope Oscilloscope is an electronic test instrument that allows projection of voltage signals to be displayed and learned. etc. period. displaying better graphics Step 1: Make Your Own Oscilloscope Using Your Laptop Computer Once I need an oscilloscope to see the electrical voltage ripple in the car. Oscilloscopes are very expensive tools. and others are generally emit noise or voltage ripples. size of the noises. or rise time) and relative timing of two related signals Below is a picture of common Oscilloscope.5mm Stereo Jack • Tester Terminal http://www. high-beam lights flicker. Those components are simple and quite cheap! The necessary components: • Two 22K ohm Resistors • Two 82K ohm Resistors • One 50K Linear Potentiometer + Tuning Knob • One meter Shield Stereo cable • One 3. I found an application that could use laptop computer / PC as Oscilloscope by adding some components as interface. Today.instructables. In addition to signal amplitude. Finally. and generally are only used in electronics / electrical laboratory. A specific circuit in the oscilloscope creates repeated moving signals from left to right. Oscilloscopes are commonly used to observe the exact wave shape of an electrical signal.com/id/Use-Your-Laptop-as-Oscilloscope/ . Well. This repetition creates non-repeating waveforms that can be learned. Oscilloscope uses LCD color display. this is what I want to know. oscilloscopes can show time distortion between two events (such as pulse width. alternator rotation. adjust the potentiometer necessarily to prevent the soundcard from being damaged by excessive voltage input.Step 2: Electronic scheme Remarks: • The 22K Resistor serves as voltage safety limit into laptop soundcard.com/id/Use-Your-Laptop-as-Oscilloscope/ . If the voltage is above 5volt.instructables. • Use shield audio cable to prevent induction around the cable. • The Potentiometer serves as input voltage resistor. http://www. com/id/Use-Your-Laptop-as-Oscilloscope/ .Step 3: The Probes Attach the probes http://www.instructables. you can use cheap USB SoundCard (under $5). 3. for the use of Oscilloscope with an input of above 5 volt.95). Sample of close-to-perfection voltage signal without noise. NOTES: 1.zelscope. This application is 14-day Trial. laptop charger. The value of Potentiometer could be increased up to 100K Linear. among others signals from mobile phone charger. 4. The Oscilloscope is ready for use!! Below are several voltage signal tests.com . This Oscilloscope has a frequency range of: 20Hz to 20 kHz (complying with the Soundcard capability). Good luck. etc.com/id/Use-Your-Laptop-as-Oscilloscope/ . could be purchased at a price of not more than (US $9. This Oscilloscope could be used for a maximum input voltage of 5Volt. battery. 5.Step 4: Testing The unit is ready. http://www. Saftari Translated by Taufik Masjhur This post was originally published on saft7. free download at www. 2.instructables. Plug the Stereo Jack into LINE-IN/MIC Get OSCILOSCOPE APPLICATION The application is ZELSCOPE. The value of 22K Resistor could be increased up to 820K Ohm for the use of Oscilloscope with an input of above 5 volt.com in Bahasa Indonesia language. For safety of your Laptop. Sample of signal from mobile phone charger (saw tooth signal) Related Instructables Gyro Camera for Motorcycle by saftari Mullard Pupil's Oscilloscope by Parcgwyn How to make an Arduino oscilloscope probe by NeoRecasata Oscilloscope How To by amandaghassaei Advertisements http://www.instructables. Sample of close-to-perfection voltage signal without noise.Image Notes 1. Image Notes 1. Sample of noise generated from laptop charger/adaptor.com/id/Use-Your-Laptop-as-Oscilloscope/ How To: Make A CRT TV Into an Oscilloscope by Magnelectrostatic how to make mp3 speaker box from cheap radio fm (Photos) by ljuwana . Image Notes 1.