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What is Multichannel Impedance Measurement for Capacitive Sensors about?

The document presents a multichannel impedance measurement system for capacitive sensors that utilizes autonulling and lock-in amplification techniques. This system allows for high-accuracy measurements across a wide dynamic range of 40 to 3000 pF with a resolution as low as 0.2 pF, making it suitable for various applications in the Internet of Things. A prototype was developed and tested, demonstrating its effectiveness in measuring both resistance and capacitance in a low-cost and efficient manner.

Author

cj1845622916

Language

EN