1 / 13

Introduction

Introduction. What is an oscilloscope?. Introduction. A graph-displaying device of electrical signal X axis: Time Y axis: Voltage Z axis: Intensity or brightness. Introduction . Information given by oscilloscopes Time and voltage Frequency and phase DC and AC components

cosette
Télécharger la présentation

Introduction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction • What is an oscilloscope?

  2. Introduction • A graph-displaying device of electrical signal • X axis: Time • Y axis: Voltage • Z axis: Intensity or brightness

  3. Introduction • Information given by oscilloscopes • Time and voltage • Frequency and phase • DC and AC components • Spectral analysis • Rise and fall time • Mathematical analysis

  4. Control panel of an oscilloscope • Vertical Section • Horizontal Section • Trigger Section

  5. Basic setting • Vertical system • attenuation or amplification of signal (volts/div) • Horizontal system • The Time base (sec/div) • Trigger system • To stabilize a repeating signal and to trigger on a single event

  6. Analog oscilloscope • Real-time display of signals • Block diagram • Sweep generator and vertical amplifier • Earthquake recorder

  7. Digital oscilloscope • Capture and view events • Digital storage oscilloscope (DSO)

  8. Digital oscilloscope (contd.) • Sampling • Interpolation

  9. Advantage of Digital Scope • Trend towards digital. • Easy to use. • One-shot measurement • Recoding • Triggering • Data reuse • Connectivity

  10. Probes • Components

  11. Probes • High quality connector • High impedance (10M) • 50 for high frequency measurement

  12. Passive probe • 10 attenuation • Good for low circuit loading • Suitable to high frequency signal • Difficult to measure less than 10mV signals • 1 attenuation • Good for small signals • Introducing more interference

  13. Active probe • Signal conditioning ⇒ oscilloscope • Require power source • Good for high speed digital signals over 100MHz clock frequency

More Related