Daniel Bogdanoff tarafından hazırlanan EEs Talk Tech
Daniel Bogdanoff
Inspired by over-the-cubical-wall conversations about the changing world of electronics and electrical engineering, Daniel Bogdanoff and Mike Hoffman created an electrical engineering podcast. Covering a broad range of topics from the basics of electrical engineering to the tough engineering problems of tomorrow’s technologies, Daniel & Mike bring in members of Keysight’s engineering team to provide their unique perspectives.
Kategoriler: Teknoloji
Son bölümü dinle:
Metrology Podcast May 20th is a special day - World Metrology Day! Get a bit of history and learn about all things metrology when you join Daniel Bogdanoff, Bob Stern, and Chris Cox in this special Metrology Day electrical engineering podcast! App note mentioned by Bob: https://bit.ly/DecisionRules More about Keysight metrology, calibration, and services: https://www.keysight.com/find/metrology Topics and time tags: 0:00 World metrology day, and a brief history of the meter and the ohm 2:00 Keysight University has FREE test gear courses! 2:45 Bob Stern, Keysight Metrologist Chris Cox, Keysight Regional Metrologist 4:30 Why does metrology matter? How does it impact us? The global economy relies on a consistency of measurement and test, which is why metrology is important. It allows measurements made in one country to be used and replicated in other countries. 7:25 Metrology and measurement traceability is important. An unbroken chain of traceability is one of the key components of metrology and calibration. It's a bit like a game of telephone leading back to SI units. 10:00 Keysight DMMs get calibrated off the first commercially available Josephson Junction - a tool that uses quantum physics to provide a very stable voltage. 11:16 Accuracy vs. Measurement Uncertainty A production engineer might say "accuracy" but really it's all about "measurement uncertainty" Vocabulary of international metrology (VIM): https://www.bipm.org/en/publications/guides/vim.html 12:15 A practical example of how different instruments have different levels of uncertainty 13:45 What's the significance of measurement uncertainty for a user of test gear or a production engineer? 15:33 The internal adjustments that the factory makes to an instrument are some of the most closely guarded intellectual property / trade secrets. 18:15 The Army uses mobile Josephson junctions to test the DMMs used in Apache helicopter field testing. 18:45 Metrology overkills - times when people went overboard with their measurement uncertainty 21:10 How do you quantify measurement uncertainty? There's "test uncertainty ratio" which uses your expanded measurement uncertainty. 23:00 You can also get to percent risk, which is easy to wrap your head around. Bob Stern and Chris Cox authored some papers on this topic. 24:00 Why do people make measurements in the first place? There are no perfect measurements 26:45 Metrology in the government/military vs. private sector 29:00 There are a lot of factors for metrology equipment calibration and the engineering metrology equipment. There are different "levels" of calibration and different depth of reporting
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61 - Measurement Overkill and why “Accuracy” is the Wrong Word – #42 Wed, 20 May 2020 - 0h
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60 - Life Lessons from electroBOOM! – DON’T PLAY WITH HIGH VOLTAGE! (Mehdi Sadaghdar Interview) – #41 - 0h
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59 - Little Big Power: Femtoamps and Regenerative Supplies – #40 - 0h
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58 - 5G, Beamforming, & MIMO – #39 - 0h
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57 - USB4 – No more Mr. Nice Guy, your USB-C connector has to do it all! – #38 Thu, 21 Nov 2019 - 0h
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56 - Teaser: EEs Talk Tech Season 2! - 0h
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55 - IC Packaging – #37 - 0h
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54 - Space Technology – #36 - 0h
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53 - New 110 GHz Oscilloscope – UXR Q&A #35 Fri, 21 Sep 2018 - 0h
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52 - One Protocol to Rule Them All!? – #34 - 0h
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51 - The Huge Challenge of Testing USB 3.2 – #33 - 0h
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50 - USB 3.2 + Why You Only Have USB Ports On One Side of Your Laptop – #32 Thu, 02 Aug 2018 - 0h
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49 - Power Supply EMI + BW Woes – #31 - 0h
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48 - BONUS: EEs as Astronauts – Audio Exclusive - 0h
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47 - Weather CubeSats – #30 - 0h
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46 - The Long Road to Space – #29 - 0h
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45 - PAM4 and 400G – Ethernet #18 - 0h
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44 - Heterogeneous Computing & Quantum Engineering – #17 - 0h
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43 - Quantum Bits and Cracking RSA – #16 - 0h
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42 - What is Quantum Computing?- #15 - 0h
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41 - How to Price Your Electronics Hardware Project – #14 - 0h
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40 - The World’s Fastest ADC – #13 - 0h
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39 - How Internet is Delivered – Data Centers and Infrastructure – #12 - 0h
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38 - Copper vs. Fiber Optic Cable and Optical Communication Techniques – #11 - 0h
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37 - All About ASICs – #10 - 0h
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36 - Optical 101 – #9 - 0h
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35 - Producer and Consumer Risk – #8 - 0h
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34 - AI Ethics and Autonomous Vehicles – #7 - 0h
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33 - Frog Legs Helped Discover the Volt – #6 - 0h
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32 - The Seven Ways we Describe the Universe (SI Units) – #5 - 0h
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31 - Under the Hood of PCI Express – #4 - 0h
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30 - Wireless Charging – #3 - 0h
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29 - Artificial Intelligence and Dispersed Computing – #2 - 0h
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28 - USB Type-C – #1 - 0h
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27 - DDR5 Rx Testing is a Whole New Ballgame – #28 - 0h
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26 - Battlebots 2018 & the Hardcore Robotics Team – #27 - 0h
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25 - Secret Specs, LPDDR5, and Interposers – #26 - 0h
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24 - DDR5 and 3D Silicon – #25 - 0h
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23 - Memory, DDR5+, and JEDEC – #24 - 0h
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22 - Data Analytics for Engineering Projects – #23 - 0h
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21 - Radar and Electronic Warfare -#22 - 0h
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20 - Intro to RF – EEs Talk Tech Electrical Engineering Podcast #21 - 0h
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19 - Wide Bandgap Semiconductors for Power Electronics – Electrical Engineering Podcast #20 - 0h
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18 - Power Integrity and Signal Integrity – #19 - 0h