资料介绍
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 filter-
ing 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. AN717
Building a 10-bit Bridge Sensing Circuit using the
PIC16C6XX and MCP601 Operational Amplifier
BRIDGE SENSOR DATA
Author: Bonnie C. Baker
Microchip Technology Inc. ACQUISITION CIRCUIT
IMPLEMENTATION
INTRODUCTION Figure 2 gives a detailed circuit for the block diagram
shown in Figure 1. The analog portion of this circuit
Sensors that use Wheatstone bridge configurations, consists of th
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