Building a 10-Bit Bridge Sensing Circuit Using the PIC16C6XX and MCP601Operational Amplifier
Sensors that use Wheatstone bridge configurations, such as pressure sensors, load cells, or thermistors have a great deal of commonality when it comes to the signal conditioning circuit. This application note delves into the inner workings of the electronics of the signal conditioning path for sensors that use Wheatstone bridge configurations. Analog topics such as gain and filtering circuits will be explored. This discussion is
complemented with digital issues such as digital filtering and digital manipulation techniques. Overall, this note?s comprehensive investigation of hardware and firmware provides a practical solution including error correction in the data acquisition sensor system.