Oscilloscope Test Measurements You Can Count On

Whether you design, debug, or perform compliance tests, you need proven measurement technology to be successful. Our oscilloscope hardware, with industry-leading signal integrity, high effective number of bits (ENOB), and the fastest waveform update rates, captures the true performance of your device under test. Couple this with superior protocol decoding, analysis, and compliance software, and you’re guaranteed to get measurements you can trust.

Which Oscilloscope Test Probe Do You Need?

Keysight offers a broad range of voltage, current, and optical probing solutions for InfiniiVision and Infiniium Series oscilloscopes. Check out this guide to see which probe is right for your testing needs.

Understanding common probing mistakes is crucial to making accurate measurements. Probes can introduce loading, noise, and jitter into your system. The electrical behavior of your probes greatly affects your measurement results and potentially even the operation of your device. Learn how to avoid common oscilloscope probing pitfalls in this eBook.

Oscilloscope Probing on a Circuit


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Frequently Asked Questions - Oscilloscopes

An oscilloscope, sometimes shortened to “scope” or “o-scope”, is a test instrument that captures and displays the behavior of electrical signal over time.

All modern oscilloscopes are digital storage oscilloscopes (DSOs), which use digital signal processing to capture and display the analog signal. If the scope has the ability to accept digital signals, it is a mixed-signal oscilloscope (MSO). If the scope has a spectrum analyzer feature built into it, it is a mixed-domain oscilloscope (MDO), though this terminology is less common.

Oscilloscopes play a key role across all industries for a variety of applications (troubleshooting, validation, characterization, manufacturing test) and technologies (high-speed digital electronics, optical communication, RF, power electronics). An oscilloscope is a critical test instrument to observe, analyze, or record, the behavior of an electrical signal.

An oscilloscope uses a probe to connect to a test point in a circuit and amplifies or attenuates the voltage at that point. The signal path after that depends on the scope, but in general analog circuitry conditions the signal and an analog-to-digital converter digitizes it for further evaluation, processing, and analysis.

An oscilloscope captures and displays a signal in the time domain, while a spectrum analyze captures and displays a signal in the frequency domain. Sometimes an oscilloscope will have a spectrum analyzer feature built into it for convenience of analyzing the signal in the time and frequency domain.

Keysight offers a wide range of free technical resources for engineers to learn about essential oscilloscope functions and specifications. Get started with the How to Use an Oscilloscope Keysight University Course, and continue your learning with free Oscilloscope Technical Resources.

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