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Measuring Resistance Using a Wheatstone Bridge

Watch this first installment in the series on bridge circuits to learn how to make reliable resistance measurements of an unknown part using a Wheatstone bridge. Compare the Wheatstone bridge measurement approach with alternative techniques such as current measurement and voltage divider measurement. Derive equations and analyze the Wheatstone bridge’s sensitivity to various errors using Symbolic Math Toolbox™. Simulate the Wheatstone bridge using a Simulink® and Simscape™ testbench to emulate real-world behavior and evaluate the robustness of this measurement technique. Access the R2024b Simulink® model used in this video on GitHub®: https://github.com/kschutz68/wheatsto... Learn more about Simscape Electrical: https://bit.ly/2RWENG7 Chapters: 0:00 Introduction to the Wheatstone Bridge 1:15 Current Measurement Approach to Resistance Determination 2:08 Voltage Divider Approach to Resistance Determination 3:04 Deeper Dive into Wheatstone Bridge 9:30 Scaling Wheatstone Bridge Resistors 13:20 Analyze Sensitivity Using Symbolic Math Toolbox 14:19 Simulate Bridge Using Simulink and Simscape -------------------------------------------------------------------------------------------------------- Get a free product trial: https://goo.gl/ZHFb5u Learn more about MATLAB: https://goo.gl/8QV7ZZ Learn more about Simulink: https://goo.gl/nqnbLe See what's new in MATLAB and Simulink: https://goo.gl/pgGtod © 2025 The MathWorks, Inc. MATLAB and Simulink are registered trademarks of The MathWorks, Inc. See www.mathworks.com/trademarks for a list of additional trademarks. Other product or brand names may be trademarks or registered trademarks of their respective holders.