Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education, China Agricultural University, Beijing 100083, China. *Email: [email protected] ABSTRACT: The soil electrical conductivity (EC) refers to the capability for soil to conduct current. It is a comprehensive reflection of soil salinity and moisture. Therefore, acquiring soil EC rapidly and accurately ca...

This paper presents two novel Floating Current Source (FCS)-based CMOS negative second generation current conveyor (CCII−) realizations suitable for very large scale implementation. The proposed realizations provide high voltage and current tracking accuracy, as well as large voltage and current transfer bandwidths. Simulation results show that the ̄rst proposed wideband CCII− bandwidth is about...

The Standardized Plant Analysis Risk-Human Reliability Analysis (SPAR-H) method has proved to be a reliable, easy-to-use method for human reliability analysis. Calculation of human error probability (HEP) rates is especially straightforward, starting with pre-defined nominal error rates for cognitive vs. action oriented tasks, and incorporating performance shaping factor (PSF) multipliers upon ...

In this paper, an attempt has been made to investigate analytically the dynamic performance of selfcommutating current source inverter-fed induction motor drive with volts/Hz control strategy. Speed and current PI regulators are used in realization of closed loop control structure of the drive system. The closed loop mathematical modeling of the complete drive system is presented in the synchro...

This paper presents 1μW curvature-corrected bandgap reference that is capable of operating with an input power supply range of 0.88-5.5V. A 0.3V precision voltage reference is implemented with 3-stage RNMC (Reversed Nested Miller Compensation) operational amplifier and a novel PTAT current source to compensate the thermal nonlinearity of the base-emitter voltage. An experimental prototype gener...

This article discusses the advantages of using a substitution measurement topology in place of the conventional common-current series connection arrangement employed in bridges or potentiometric resistance instruments working at the highest (sub ppm) accuracies. Most high accuracy resistance instruments pass a common AC or DC current through the device-under-test (DUT) and a reference standard ...

The definition of the current conveyor is presented and it is shown how different generations of current conveyors can all be combined into a single definition of a multiple-output second generation current conveyor (CCII). Next, noise sources are introduced into the model, and a general noise model for the current conveyor is established. This model is used for the analysis of selected example...