Improving Accuracy in the Readout of Resistive Sensor Arrays

Hidalgo-López, José A.; Fernández-Ramos, Raquel; Romero-Sánchez, Jorge; Martín-Canales, José F.; Ríos-Gómez, Francisco J.

doi:10.1155/2018/9735741

Cited by 10 publications

(4 citation statements)

References 31 publications

(40 reference statements)

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“…This means that such a mechanism of influence of the normalized quantity T 1 is the process regulation factor that can affect the relative measurement error. The influence of the values of certain parameters on the measurement result does not differ from the practical data presented in [7,12]. It was also found that for both systems (10) and (13), the best accuracy results (Tables 2, 6) were obtained for the case of Т 1 =(10÷100) °С, T 2 =(1÷10) °С.…”

Section: Discussion Of the Results Of Computer Modeling Of The Quadra...mentioning

confidence: 56%

“…An option to overcome these difficulties may be to use recursive methods. This approach is used in [7], where obtaining individual values of the resistances of resistors in an array of sensors made it possible to reduce cross-noise. The issue of reducing the systematic error of the measuring channel was also considered in [8], where the accuracy was improved by introducing corrections.…”

Section: Due To This It Can Be Argued On the Use Of Non-precision Nor...mentioning

confidence: 99%

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Computer modeling in the study of the effect of normalized quantities on the measurement accuracy of the quadratic transformation function

Shcherban

Korogod

Kolysko

et al. 2022

EEJET

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The research of the systems of equations of quantities describing, respectively, 5 and 6 measurement cycles revealed the peculiarities of redundancy formation. It is proved that the normalized temperature T1 has the greatest effect on the measurement result for both systems. In addition, it was found that in both systems, an increase in the reproduction accuracy of the normalized temperature T1 (with a constant reproduction error of T2) does not lead to a significant improvement in the results. Due to this, it can be argued on the use of non-precision normalized sources to reproduce the temperature T1. However, an order of magnitude increase in the reproduction accuracy of both normalized quantities T1 and T2 also increases the measurement accuracy by an order of magnitude. Computer modeling confirmed that for the redundant measurement equation (11) at the ratio Т1=Ті(0.0005•Ті+1) in the range (10÷200) °С, measurement with a relative error (0.01÷0.00003) % is provided. When applying the redundant measurement equation (13), the accuracy increases to 0.0059 % only at the end of the range. Based on the results obtained, it was found that the accuracy of redundant measurements is influenced by the type of equation itself, not their number. Processing of the results based on the redundant measurement equation, by the way, ensures the independence of the measurement result from the influence of absolute values of the transformation function parameters, as well as their deviations from nominal values under the influence of external destabilizing factors. Thus, there is reason to believe that it is possible to increase the accuracy of measurement in a wide range by observing the ratio between normalized and controlled quantities

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Section: Discussion Of the Results Of Computer Modeling Of The Quadra...mentioning

confidence: 56%

Section: Due To This It Can Be Argued On the Use Of Non-precision Nor...mentioning

confidence: 99%

Computer modeling in the study of the effect of normalized quantities on the measurement accuracy of the quadratic transformation function

Shcherban

Korogod

Kolysko

et al. 2022

EEJET

View full text Add to dashboard Cite

show abstract

“…Thus, it can also be described as electrical isolation scheme. The second approach takes multiple measurements, including cross-talk, and finds the true resistances by solving a set of linear equations [38]. The advantage of this approach is that a minimum number of components is required to realize the readout circuit.…”

Section: A System Architecturementioning

confidence: 99%

Leveraging Tactile Sensors for Low Latency Embedded Smart Hands for Prosthetic and Robotic Applications

Wang¹,

Geiger²,

Niculescu³

et al. 2022

Preprint

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“…In [10], an increase in the accuracy of measurement by a square InGaAs detector was achieved by combining the infinite integral method with the Boltzmann method, having opposite error characteristics. In [11], a recursive method was proposed to reduce cross-noise, based on obtaining individual values of resistors in the array of resistive sensors. However, these works do not provide ways to expand the range for a nonlinear transformation function.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Computer simulation of logarithmic transformation function to expand the range of high-precision measurements

Shcherban

Korogod

Kolysko

et al. 2021

EEJET

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Studies of the effect of normalized radiation fluxes on the measurement result revealed the most influential one. The value of the normalized flow F0 was shown to have a greater effect on the relative measurement error than ΔF0. This allows investigating the relationship between the controlled Fx and the normalized flow F0. Experimental studies have confirmed that by a threefold increase in the normalized flow F0 relative to the controlled flow Fx, it becomes possible to increase the measurement accuracy in a wide range. In particular, it was found that at the flux value F0=0.16×10-3 W, it becomes possible to measure the controlled flow in a wider range Fх=(0.16×10-3÷0.97×10-3) W with a relative error of thousandths of a percent. The effect of the reproduction error on the measurement result under the condition of a threefold increase in the normalized flow F0 relative to the controlled flow Fх is shown. It was found that an increase in the reproduction error of the normalized radiation fluxes by 1 order leads to a narrowing of the range in which the value of the relative error tends to zero. It is shown that in the absence of a threefold increase in the normalized flow F0, an increase in the reproduction error of the normalized flows by 1 order leads to individual cases of reduction in the relative error to small-order values. The latter, by the way, applies to cases where the ratio between the normalized F0 and controlled flow Fx, as 3 to 1, is ensured. It is shown that the reproduction error of the dark flow does not affect the measurement result.Thus, there is reason to believe that it is possible to expand the measurement range, in which the value of the relative error is thousandths of a percent, even for 1 measurement cycle

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Improving Accuracy in the Readout of Resistive Sensor Arrays

Cited by 10 publications

References 31 publications

Computer modeling in the study of the effect of normalized quantities on the measurement accuracy of the quadratic transformation function

Computer modeling in the study of the effect of normalized quantities on the measurement accuracy of the quadratic transformation function

Leveraging Tactile Sensors for Low Latency Embedded Smart Hands for Prosthetic and Robotic Applications

Computer simulation of logarithmic transformation function to expand the range of high-precision measurements

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