加速计陀螺仪培训资料.ppt

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1、AccelerometerBilly1contentAccelerometerprincipleMEMSAccelerometer(LIS331DLH)AccelerometerapplicationGyroscopeprincipleMEMSGyroscope(L3G4200DH)Gyroscopeapplication2AccelerometerprinciplemFa3Accelerometerprinciple4MEMSAccelerometerMEMSMicro-Electro-MechanicalSystems56LIS331DLHD

2、escriptionTheLIS331DLHisanultralow-powerhighperformancethreeaxeslinearaccelerometerbelongingto“nano”familywithdigitalI2C/SPIserialinterfacestandardoutput.Features16bitdataoutput2independentprogrammableinterruptgeneratorsforfree-fallandmotiondetection.+-2g/+-4g/+-8gdynamically

3、selectablefull-scalesSmartembeddedfunction10000ghighshocksurvivability7ISS331DL8LIS331DLH9LIS331DLH10LIS331DLH11LIS331DLH12LIS331DLH13LIS331DLHRegister(128bytes8bit)ControlisbehaviorRetrieveaccelerationdataSelectoperationmode14LIS331DLH15LIS331DLHmeasurementI2Cwaveformanddata

4、WriteCommand["accel--fct"]:measurepin4&616LIS331DLHmeasurementI2CwaveformanddataWriteCommand["accel--intr"]:measurepin4&617AccelerometerapplicationFree-falldetectionMotionactivatedfunctionsGamingandvirtualrealityinputdeviceVibrationmonitoringandcompensation18Q&A19GyroscopeBil

5、ly20GyroscopeAgyroscopeisadeviceformeasuringormaintainingorientation,basedontheprinciplesofconservationofangularmomentum.21MEMSGyroscopeCoriolisforce22MEMSGyroscope23MEMSGyroscope24L3G4200DHLow-powerthereaxesangularratesensorThreeselectablefullscales(+-250/+-500/+-2000dps)I2C

6、/SPIdigitaloutputinterfaceSmartembeddedfunctions16bit-ratevaluedataoutput8-bittemperaturedataouput25L3G4200DH26L3G4200DH27L3G4200DH28L3G4200DH29L3G4200DH30L3G4200DHPin14PPFILTmaximumvoltagelevelisequaltoVdd.31L3G4200DH32L3G4200DH33L3G4200DH34L3G4200DHFivemodes(selectbyFIFO_MO

7、DEbitsinregister)BypassmodeFIFOmodeStreammodeBypass-to-StreammodeStream-to-FIFOmode35BypassmodeOnlyoneslotused,whennewdatainputolddatawillbeoverwritten.36FIFOmodeWhenthedatafilledtothelevelspecifiedinREG,itwilltriggerainterrupt.TheFIFOcontinuesfillinguntilfull.WhenfullFIFOsto

8、pcollectiondata,torestartcollectiondataitisnecessarybacktoBypassmode