Misalignment tolerance is essential in the design and implementation of inductive power transfer (IPT) systems. This paper proposes an IPT coupler, termed rectangular-solenoidal pad (RSP), which combines a rectangular coil solenoidal coil. The proposed RSP can effectively capture both vertical horizontal magnetic fields, complementing each other to suppress flux variation during misalignment. Compared with commonly-used double D quadrature (DDQP), achieves same level suppression less wire,...

This paper depicts the way making use of Shape Memory Alloy in aircraft hydraulic system and feasibility accomplishing concept self-adapting deformable wing. The latest application engine variable section nozzle enlarged serving territory. describes fundamental principle special material such as Alloy, sensor, actuator electronic control cell together bears load. author summarizes experience using SMA presents difficulties essentials practice. Finally prospects SMA's bright future various...

We investigate the polarization evolution for both signal and noise in two 107-km recirculating loops with polarization-dependent loss per round-trip of 0.35 dB less than 0.1 dB, respectively. When system is optimized, first case, are polarized, while second tends to depolarize due noise. experimentally measured theoretically simulated Q factor distribution, which far from what expected straight-line systems, after 5000 km case. also suggest a simple method obtaining same distribution loop...

The three-coil loosely coupled inductive power transfer (IPT) charging system can achieve constant current (CC) to voltage (CV) output automatically and smoothly during battery process. However, due cross-coupling that existed between the assistive receiver coils, a deviation will generate in CV compared with ideal threshold of battery. In this paper, practical effect coils impedance matching at full load for efficiency optimization are further taken into consideration based on coupler...

Abstract There has been an increase in popularity of wheelchair sports. It is necessary to develop mobile on-board systems do measurements field. This paper presents a low cost velocity and position measurement system for field environments. In the system, two MEMS gyroscopes GPS receivers are fixed on rear wheels’ axles. A Kalman filter used integrate data with produce accurate displacement estimations. The wheelchair’s kinematics can be identified by using All transferred computer via...

We previously demonstrated a high speed, point to point, quantum key distribution (QKD) system with polarization coding over fiber link, in which the resulting cryptographic keys were used for one-time pad encryption of real time video signals. In this work, we extend technology three-node active QKD network - one Alice and two Bobs. A allows multiple users generate share secure keys. comparison passive network, nodes an can actively select destination as communication partner therefore, its...

Smart power integrated circuits (ICs), as the combination of control and functions on a single chip, enable production more miniaturized systems. This paper presents an experimental method for small-signal frequency-response analysis smart ICs in switch-mode supplies. In this method, switching-duty-cycle output IC is converted into digital signal by using two high-speed counters during each switching period, IC's input simultaneously analog-to-digital converter. After processing data...

Real-time demonstration with a 7nm DSP of 400G transmission using probabilistic shaping is presented. Best in class performance for achieved power envelope that enables compact pluggable modules.

According to the exiting issues of currently DC system insulation monitoring device, this paper developed a more comprehensive function device. The device adopted phase different magnetic modulation detection principle. Though access unbalanced grounding relay, it can solve conventional devices which unable detect issue like: simultaneity or equivalent deterioration, with method determine variety ground failure correctly, and also predict decline. Because 500kV transfer substation serious...

We demonstrate that, even for a long-haul recirculating loop system with low-PMD fiber, loop-synchronous polarization scrambling must be used the performance to resemble that in straight-line system. Otherwise, BER can vary over four orders of magnitude.

Using the Jones matrix eigenanalysis and Poincare/spl acute/ arc methods, we measured differential group delay (DGD) in a recirculating loop for arbitrary fiber realizations different round trips. The measurement uncertainty was less than 2.0 ps most cases. With this capability, DGD distribution with without loop-synchronous polarization scrambling. We found that can be influenced by slow drift of realization loop.

High-speed data communication is critical for home networks to support the increasing needs of online multimedia entertainment. Power-line (PLC) presents a 'no new wires' solution networks. However, power line troublesome and noisy platform And traditional approach with PLC interference-limited has small bandwidth. In this paper we propose scheme orthogonal frequency-division multiplexing (OFDM) provide better noise-limited This schema based on loosely synchronous (LS) codes very nice...

Using a recirculating loop, we measured nonlinearly induced timing jitter in terrestrial wavelength-division-multiplexed system at different transmission distances with amounts of precompensation. Within each 600-GHz subband, achieved error-free using the same amount precompensation for all channels up to 5000 km.

Smart power ICs are widely used in universal input supplies. This paper presents a detailed analysis and scheme design for real-time small-signal modeling method smart IC. First, this method, the switching duty cycle is converted into voltage output signal based on operational characteristics of The IC's frequency response then obtained by measuring control signal. system referred to as sampling IC with zero-order hold output. Using least-square identification, dynamic model transfer...

A method of small signal modelling for the Smart power IC is presented. The based on IC's typical operational characteristics and frequency response data. Using least square identification, dynamic model, which was expressed as transfer function, synthesised from gain phase data experiment were obtained. effectiveness practicality verified through experiments.

Energy is now seen as a significant resource that develops abundant on the world economy, with short supply and development. A study found renewable energy systems are needed to prevent shortages. Hence, all focus in this decrease electricity consumption reduce overall completion times for regular console green technology networks was an efficient scalable production genomic solution. Renewable resources smart city (RGER-SC) framework proposed used multi-target evolutionary algorithm...

Trellis Coded Modulated (TCM)-QPSK has been demonstrated as a coherent optical modulation format. For the first time its performance is compared to BPSK on four subsea segments of different lengths, showing benefits up 1.8 dB.

Due to the temporal drift of fiber birefringence in an optical transmission system, polarization mode dispersion (PMD) effects measured a time window can be quite different for windows same duration. Every 10 s days, accumulated differential group delay (DGD) was repeatedly at 5000 km 107-km recirculating loop with loop-synchronous scrambling. In each DGD measurement, vector 107-km-long also measured. To model variation DGD, two perturbation algorithms were used construct random walks...