- on Test & Measurement
- Published in issue 9/2014 on page 74
Taking the Strain
Integrating precision strain gage measurements into a programmable SoC
Many pressure and force sensors rely on resistive sensing elements connected in some variant of the so-called bridge configuration. In the electrical context, a ‘bridge’ is a common topology in which four two-terminal devices are connected in a loop. Think of the ubiquitous ‘bridge rectifier’ — if you are reading this article, chances are that you have used one of those in a power supply design.