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A Resistance Deviation-To-Time Interval Converter Based On Dual-Slope Integration
Shang, Zhi-Heng,Chung, Won-Sup,Son, Sang-Hee Institute of Korean Electrical and Electronics Eng 2015 전기전자학회논문지 Vol.19 No.4
A resistance deviation-to-time interval converter based on dual-slope integration using second generation current conveyors (CCIIs) is designed for connecting resistive bridge sensors with a digital system. It consists of a differential integrator using CCIIs, a voltage comparator, and a digital control logic for controlling four analog switches. Experimental results exhibit that a conversion sensitivity amounts to $15.56{\mu}s/{\Omega}$ over the resistance deviation range of $0-200{\Omega}$ and its linearity error is less than ${\pm}0.02%$. Its temperature stability is less than $220ppm/^{\circ}C$ in the temperature range of $-25-85^{\circ}C$. Power dissipation of the converter is 60.2 mW.
A Resistance Deviation-To-Time Interval Converter Based On Dual-Slope Integration
Zhi-Heng Shang,정원섭,손상희 한국전기전자학회 2015 전기전자학회논문지 Vol.19 No.4
A resistance deviation-to-time interval converter based on dual-slope integration using second generation current conveyors (CCIIs) is designed for connecting resistive bridge sensors with a digital system. It consists of a differential integrator using CCIIs, a voltage comparator, and a digital control logic for controlling four analog switches. Experimental results exhibit that a conversion sensitivity amounts to 15.56 μs/Ω over the resistance deviation range of 0-200 Ω and its linearity error is less than 0.02%. Its temperature stability is less than 220 ppm/℃ in the temperature range of -25-85℃. Power dissipation of the converter is 60.2 mW.