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1、TITIDA－01471PLC模拟输入IEPE震动传感器接口参考设计时间：2018-01-2610:35:28 作者：TI 来源：中电网TI公司的TIDA－01471是PLC模拟输入综合压电(IEPE)震动传感器接口参考设计,具有单路IEPE传感器模拟输入,24位转换效率,20kHz信号带宽,可编数据速率265kSPS到32kSPS,可调增益-12dB到18dB,可编程激励电流2-20mA,±10-VAC输入,250-kΩ输入阻抗,工作温度–40℃-85℃,主要用在PLC,DCS模拟和混合输入模块,模拟信号调理/发送器,震动开关,
2、数据采集和测量系统.本文介绍了参考设计TIDA-01471主要特性和指标,框图和测试建立图,电路图,材料清单和PCB设计图.Industrialvibrationsensingisacrucialprocessinconditionmonitoring,whichisnecessaryforpredictivemaintenance.Anintegratedelectronicpiezoelectric(IEPE)sensoristhemostcommonvibrationsensorusedintheindustrialenvironment.Th
3、eTIDA-01471designisafullanalogfrontendfortheIEPEsensorinterfaceanddemonstrateshowtoachieveflexiblehigh-resolution,high-speedconversionwithlow-powerandsmall-footprintimplementation.IEPEvibrationsensorinterfacecircuitsarehigh-resolution,high-speed-specializedsensorinterfacecircui
4、tsusedinarangeofindustrialcontrolproducts,includinghigh-endmeasurementanddataacquisition(DAQ)systems,vibrationswitches,conditioners,andtransmitters,aswellasdedicatedanaloginputmodulesforprogrammablelogiccontrollers(PLCs).TheIEPEvibrationsensorinterfaceisanessentialpartofthecond
5、itionmonitoringplatformsofferedbytopPLCanddistributedcontrolsystems(DCSs)manufacturers.TherangeofexistingIEPEsensorinterfaceproductsextendfromsinglechannelto12ormorechannelsforhigh-endsystems.Thebandwidthrangesfrom1kHZupto100kHzwith20kHzasthemostcommonbandwidthsetting.Thesampli
6、ng frequency rangesfrom25kSPSupto100kSPS,witharesolutionof16bitsto24bits.参考设计TIDA-01471主要特性:•Single-ChannelIEPESensorAnalogInput•24-BitConversionResolution•20-kHzSignalBandwidth•ProgrammableDataRate:265kSPSto32kSPS•AdjustableGain:–12dBto18dB•ProgrammableExcitationCurrent:2mAto2
7、0mA•±10-VACInput,250-kΩInputImpedance•–40℃to85℃OperatingTemperatureRange•Diagnostics:Wire-Break,Short-CircuitDetection,andShort-CircuitProtection参考设计TIDA-01471应用:•PLC,DCSAnalog,andMixedInputModule•AnalogSignalConditioner/Transmitter•VibrationSwitch•DataAcquisitionandMeasurement
8、Systems图1.参考设计TIDA-01471外形图参考设计TIDA-01471主要指标:图2.参考设计T
