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How does a strain gauge work? What is a strain gauge? Why are Wheatstone bridge measuring systems used to measure mass? You will find answers to these and other questions in this video. I discuss the principle of operation of metal and piezoresistive strain gauges. I present the measuring systems and explain their principle of operation using examples of real scales. Do you appreciate my work and want to support me? You can do it through Patronite: https://patronite.pl/burnos DC bridges: • Metrology - How to measure resistance... Table of contents: 00:00 - Introduction 02:53 - Resistance sensors - principle of operation 06:25 - Strain gauges - principle of operation 11:15 - Temperature sensitivity of strain gauges 12:34 - Strain gauge scale - quarter bridge system 15:51 - Wheatstone bridge - measurement system 16:37 - Kitchen scale - half bridge system 19:04 - Full bridge system - temperature compensation 19:37 - Bathroom scale - full Wheatstone bridge 22:51 - Summary #metrology #electricalmeasurements #agh