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Tag: #TEK EXPLAINS

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TBS2000B digital oscilloscope
How Does an Oscilloscope Measure Frequency? Tuesday, April 6, 2021
Oscilloscopes measure the voltage of an electrical signal, which is then graphically represented by waveforms. However, an oscilloscope 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. On most, if …
TBS1000C bench oscilloscope
How to Use an Oscilloscope to Measure Current Tuesday, April 6, 2021
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 …
TBS1000C bench oscilloscope
What is an oscilloscope? Tuesday, April 6, 2021
An oscilloscope is an instrument that graphically displays electrical signals and shows how those signals change over time. It measures these signals by connecting with a sensor, which is a device that creates an electrical signal in response to physical stimuli like sound, light and heat. For instance, a microphone is a sensor that converts sound into an electrical signal. Here we’ll cover …
Oscilloscope probe connected to a DUT
What is an Oscilloscope Probe? Monday, April 5, 2021
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 …
bench power supply
Bench Power Supply Basics Thursday, April 1, 2021
A DC power supply is a standard piece of test and measurement equipment used by electrical engineers and circuit designers to power and test their circuit system designs. But what exactly does it do and how can you find the right bench power supply for your application? We’ll cover all that and more. Why do you need a bench power supply? Bench power supply types How to choose the …
3 Series MDO mixed domain oscilloscope
What does an oscilloscope measure? Thursday, March 25, 2021
Most consumer products include electronic circuits or components, and an oscilloscope is used throughout the product design process to test those components. But what is an oscilloscope? And what does an oscilloscope measure? An oscilloscope is an instrument that graphically displays electrical signals and shows how those signals change over time. Engineers use oscilloscopes to measure electrical …
TBS1000C bench oscilloscope
How to choose an oscilloscope Wednesday, March 24, 2021
Oscilloscope bandwidth System bandwidth determines an oscilloscope’s ability to measure a signal. Specifically it determines the maximum frequency that the instrument can accurately measure. Bandwidth is also a key determining factor in price. Determine what you need – use the ‘five times rule’ For example, a 100 MHz oscilloscope is usually guaranteed to have less than 30% attenuation at 100 MHz …
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 …
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 …