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Simplifying sensor signal conditioning (Part 1)

Posted: 29 Oct 2009     Print Version  Bookmark and Share

Keywords:sensor signals  signal conditioning  Bridge Wheatstone sensor 

Sensors of all types have come a long way in the last few years, and tend to be more accurate and stable than their predecessors. These sensors are not always simple to use. Designers of conditioning circuitry for these sensors often find development of this circuitry somewhat daunting. However, with a little basic knowledge and the help of a new online sensor design tool, much of the challenge of this process is alleviated.

While many types of sensors are available, the pressure sensor enjoys the most applications. Hence, this article discusses the basic operation of the Wheatstone Bridge-based pressure sensor and processing circuitry for interpreting the bridge sensor output, including offset and gain correction. In Part 2, we'll introduce and discuss an online tool that can be used to design the signal conditioning circuitry for these types of sensors.

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