简介：Helicopterinspectionofultrahighvoltage(UHV)transmissionlineshasunmatchedadvantagescomparedtomanualworkduetotheinspectionangleandhigh-techequipmentonboard,especiallyindetailedinspectionsoftowerheadsanddefect-detectionsinvirtueofinfrared/ultraviolettechniques.Thispaperdealswithsomekeytechnicalproblemsintheinspectionsof1000kVUHVAClineswithahelicopter,suchasthesafedistanceoflive-lineworking,electromagneticfieldintensityandflightcontrol.Basedonthestudyresults,asetofUHVlineinspectionmethodswasworkedoutandappliedtotheinspectionofliveUHVlines.

简介：分析行间转移型面阵电荷耦合器件（CCD）ICX055AL的工作原理和驱动时序，以现场可编程门阵列（FPGA）为硬件设计载体，采用Verilog硬件描述语言（HDL）设计CCD驱动时序，结合CCD时钟驱动芯片CXD1267AN和2片74HC04构建出CCD驱动电路。通过QuartusⅡ软件对其进行仿真分析，并对芯片EP2C5Q208C8进行配置。结果表明，所设计的驱动电路可以满足ICX055AL的各项性能要求，能够产生准确的脉冲信号驱动ICX055AL工作。