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Tag: #TEK EXPLAINS

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Individual interference hunting
What is Probability of Intercept (POI) and Why it Matters Thursday, September 10, 2020
One term we see quite often when breaking down spectrum analyzers is probability of intercept (POI). So, what is the definition of probability of intercept and why does it matter? When we see “probability of intercept” we should know that this term is almost always a contraction of the phrase “minimum event duration for 100% probability of intercept”. POI is the amount of time equal to “the …
An Introduction to Using Phasor Diagrams on Oscilloscopes for 3-Phase Power Analysis Wednesday, June 10, 2020
When you are working with 3-phase systems, having phasor diagrams available on your oscilloscope can save time during setup and provide faster insight into your system. In general, alternating voltages or currents are represented graphically as voltage or current versus time waveforms. This is the traditional oscilloscope view. A three-phase system consists of three sinusoidal AC voltages and …
Which oscilloscope to buy? Things to consider when choosing a scope Thursday, August 29, 2019
Oscilloscopes are used as windows into signals for troubleshooting circuits or checking signal quality. A digital oscilloscope, which is what we’re going to be concentrating on in this article, acquires and stores waveforms. The waveforms show a signal’s voltage and frequency, whether the signal is distorted, timing between signals, how much of a signal is noise, and much, much more. But how to …
How Does an Oscilloscope Measure Frequency? Thursday, August 29, 2019
Oscilloscopes are primarily set up to measure the voltage of an electrical signal, which is then graphically represented by waveforms. However, scopes can be used to take measurements for a number of different applications – one of which is frequency. But how does an oscilloscope measure frequency, exactly? Well, there’s a straightforward answer, and then there’s a slightly more complicated answer …
How to Use an Oscilloscope to Measure Current Thursday, August 29, 2019
Most oscilloscopes only directly measure voltage, not current, however there are a couple of ways it is possible to measure current using a scope: Measure the voltage dropped across a shunt resistor – some power supply designs may have shunt resistors built into the design for feedback. One technique is to measure the differential voltage drop across such a resistor. These are generally low …
What is an Oscilloscope Probe? Thursday, August 29, 2019
An oscilloscope probe is a device that makes a physical and electrical connection between a test point or signal source and an oscilloscope. Depending on your measurement needs, this connection can be made with something as simple as a length of wire or with something as sophisticated as an active differential probe. Essentially, a probe is some sort of device or network that connects the signal …
What Can an Oscilloscope Measure? Thursday, August 29, 2019
Most, if not all, consumer products have electronic circuits or components – whether they’re simple or complex – and oscilloscopes are required throughout the design, verification, and debugging process. Understanding oscilloscope basics is critical to almost all product design. But this begs the question – what can an oscilloscope measure? Put simply, an oscilloscope is a sophisticated …
DC Bench Power Supply Fundamentals Thursday, August 1, 2019
DC Bench Power Supplies - 6 Things You Must Know Bench power supplies have always been a staple of the test engineer’s bench. We use them every day and yet they are one of the most often overlooked instruments on the bench. With the right bench power supply and a good knowledge of its features and functions, you may be able to improve the speed and accuracy of your tests. The following is a list …
Bench Power Supply Basics Thursday, July 4, 2019
What is a Bench Power Supply? A bench power supply is a standard piece of test and measurement equipment on every electrical engineer and circuit designer’s bench. They provide DC (direct current) voltage to a device under test such as a circuit board or other product being validated. The equipment is typically set up on the engineer’s work area or bench (hence the term “bench power supply”). A …
Types of signal generators Friday, May 17, 2019
A signal generator is any device that creates electronic signals. There are many different types with diverse purposes and applications. Function generators, arbitrary waveform generators, and vector signal generators are common types of specialized signal generators.  Waveform Generator A waveform generator is used to generate electrical waveforms over a wide range of signals.  Common types of …