简介:Onthebasisofopticallypoweredsensorprinciples,thispaperintroducesapracticalschemeofanopticallypoweredforcesensorusingapiezoelectriccrystalwork-inginclose-loopresonantmode.A3mWLDstabilixedisusedasopticalsource.Theop-ticalpoweringdistancereaches500mwhilethetotalpowerconsumptionofthemirco-powermeasuringheadisonly0.275mW.Thekeytechnicalproblemsofthesensorsarepresentedaswellasexperimentralresults.
简介:AnovelLD-pumpedsingle-frequencymicro-chipgreenlaserispresented.ByusingthecombinationofshortcavityandLoytfilterformedbyRochonprismandKTPcrystal,astablesinglefrequencygreenlaserisobtainedwith60mWoutputat500mWLD-pump.Theoptical-to-opticalconversionefficiencyisabout12%.Theopticalcontactbetweencomponentsofthelaserisadopted.Thislaserhastheadvantagesofacompactstructureandalowcost.
简介:非特定人声语音识别技术的应用实现了新一代的便利人机交互接口,介绍了应用LD3320语音识别芯片结合传感器及无线遥控技术,通过STC12LE5A60S2单片机实现智能安防、信息播报及语音控制的智能家庭控制系统.