scholarly journals Cable Crosstalk Suppression with Two-Wire Voltage Feedback Method for Resistive Sensor Array

Sensors ◽  
2016 ◽  
Vol 16 (2) ◽  
pp. 253 ◽  
Author(s):  
Jianfeng Wu ◽  
Shangshang He ◽  
Jianqing Li ◽  
Aiguo Song
Keyword(s):  
Sensor Array ◽  
Resistive Sensor ◽  
Feedback Method ◽  
Voltage Feedback

scholarly journals General Voltage Feedback Circuit Model in the Two-Dimensional Networked Resistive Sensor Array

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
JianFeng Wu ◽  
Lei Wang ◽  
JianQing Li
Keyword(s):  
General Model ◽  
Sensor Array ◽  
Mathematical Expression ◽  
Array Size ◽  
Two Dimensional ◽  
Feedback Circuit ◽  
Test Experiment ◽  
Resistive Sensor ◽  
Feedback Circuits ◽  
Voltage Feedback

To analyze the feature of the two-dimensional networked resistive sensor array, we firstly proposed a general model of voltage feedback circuits (VFCs) such as the voltage feedback non-scanned-electrode circuit, the voltage feedback non-scanned-sampling-electrode circuit, and the voltage feedback non-scanned-sampling-electrode circuit. By analyzing the general model, we then gave a general mathematical expression of the effective equivalent resistor of the element being tested in VFCs. Finally, we evaluated the features of VFCs with simulation and test experiment. The results show that the expression is applicable to analyze the VFCs’ performance of parameters such as the multiplexers’ switch resistors, the nonscanned elements, and array size.

3-sensor array for hand held breath diagnostic tool

2013 ◽  
Vol 1533 ◽  
Author(s):  
P. Gouma ◽  
S. Sood
Keyword(s):  
Diagnostic Tool ◽  
Sensor Array ◽  
Gas Sensing ◽  
Orthorhombic Phase ◽  
Structural Transformations ◽  
Polymorphic Transitions ◽  
Heat Treated ◽  
Gas Sensing Properties ◽  
Resistive Sensor ◽  
Resistance Value

ABSTRACTPolymorphic transitions in nanocrystalline metal oxides leads to structural transformations resulting in differing properties at varying operating temperatures. Nanocrystalline MoO3 transforms from a metastable monoclinic phase to stable orthorhombic phase when heat treated in the temperature range of 420C to 500C. Gas sensing results have shown that at 420C MoO3 is sensitive to Isoprene, a 450C it shows sensitivity to CO2 and to ammonia at 500C. DSC data has proved that MoO3 changes crystal structure to monoclinic at 420C and to orthorhombic at about485C. This confirms a correlation between structure and gas sensing properties of MoO3. Using this knowledge a hand-held diagnostic tool is developed to monitor specific breath gases which can be biomarkers for diseases. The device consists of three sensors, the read-out gives a real time resistance value for each resistive sensor which is stored in a microprocessor. This is a one of a kind handheld tool for disease detection using ceramic sensors as detectors for gases which are known to be biomarkers for diseases.

Design and Crosstalk Error Analysis of the Circuit for the 2-D Networked Resistive Sensor Array

2015 ◽  
Vol 15 (2) ◽  
pp. 1020-1026 ◽  
Author(s):  
JianFeng Wu ◽  
Lei Wang ◽  
JianQing Li
Keyword(s):  
Error Analysis ◽  
Sensor Array ◽  
Resistive Sensor

Combined smart chemFET/resistive sensor array

2004 ◽  
Author(s):  
J.A. Covington ◽  
S.L. Tan ◽  
J.W. Gardner ◽  
A. Hamilton ◽  
T. Koickal ◽  
...  
Keyword(s):  
Sensor Array ◽  
Resistive Sensor

scholarly journals Cable Crosstalk Suppression in Resistive Sensor Array with 2-Wire S-NSDE-EP Method

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
JianFeng Wu ◽  
Lei Wang
Keyword(s):  
Sensor Array ◽  
Equivalent Resistance ◽  
Resistive Sensor ◽  
Simulation Results ◽  
Flexible Cables ◽  
Resistance Expression

With long flexible cables connected to the 1-wire setting non-scanned-driving-electrode equipotential (S-NSDE-EP) circuit, the resistive sensor array modules got flexibility in robotic operations but suffered from the crosstalk problem caused by wire resistances and contacted resistances of the cables. Firstly, we designed a new S-NSDE-EP circuit using two wires for every driving-electrode and every sampling-electrode to reduce the crosstalk caused by the connected cables in the 2D networked resistive sensor array. Then, an equivalent resistance expression of the element being tested (EBT) for this circuit was analytically derived. Then, the 1-wire S-NSDE-EP circuit and the 2-wire S-NSDE-EP circuit were evaluated by simulations. The simulation results show that the 2-wire S-NSDE-EP circuit, though it requires a large number of wires, can greatly reduce the crosstalk error caused by wire resistances and contacted resistances of the cables in the 2D networked resistive sensor array.

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