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A novel crosstalk suppression method of the 2-D networked resistive sensor array
Jianfeng Wu1, Lei Wang2, Jianqing Li3
1School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China. wjf@seu.edu.cn.
Sensors (Basel, Switzerland)
|July 22, 2014
Summary
This study introduces an Improved Isolated Drive Feedback Circuit with Compensation (IIDFCC) to reduce crosstalk in 2-D resistive sensor arrays. The new method effectively minimizes interference from parasitic paths, improving measurement accuracy.
Area of Science:
- Electrical Engineering
- Sensor Technology
- Circuit Design
Background:
- 2-D resistive sensor arrays face crosstalk issues due to parasitic parallel paths.
- This crosstalk degrades the accuracy of measurements in row-column sensor configurations.
Purpose of the Study:
- To develop and validate a novel circuit to suppress crosstalk in 2-D resistive sensor arrays.
- To improve the accuracy of measuring the element being tested (EBT) by mitigating parasitic path interference.
Main Methods:
- Proposed an Improved Isolated Drive Feedback Circuit with Compensation (IIDFCC) utilizing voltage feedback.
- Incorporated a compensated resistor to specifically reduce crosstalk from column multiplexer resistors and adjacent row elements.
- Derived and simulated an analytical equivalent resistance expression for the element being tested (EBT).
Main Results:
- The IIDFCC effectively suppresses crosstalk caused by parasitic parallel paths.
- The compensated resistor significantly reduces interference from multiplexer channels and adjacent elements.
- Circuit simulations verified the analytical model and demonstrated a substantial reduction in measurement error.
Conclusions:
- The IIDFCC is a viable solution for mitigating crosstalk in 2-D resistive sensor arrays.
- This method enhances the reliability and accuracy of sensor measurements.
- The proposed technique offers improved performance for resistive sensor array applications.
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