无线应变测试系统设计

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1、calibrationandobtainthesensitivityandlinearityofthesystem,thenusethelaboratorygearboxdriveshaftdevicetoconductthegearboxinputshaftstraintestexperiment,andcollectsreal-timestrainvoltagesignal,finally,wegetthestrainsignaloftheinputshaftofthegearboxthroughMATLABprocessing,sho

2、wthatthesystemcanaccuratelytestthechangesofthestrain,andverifiestheaccuracyandreliabilityofwirelesscommunications.Thesystemofthewirelessstrainmeasurementissimple,lowcost,smallsize,lowpowerconsumption,thereliabilityofthetransmission,widerangeofapplications.Keywords:wireless

3、communication,strainmeasurement,nRF9E5,MCU中北大学学位论文目录1绪论.................................................................11.1概述............................................................11.2应变测试和无线通信技术的现状与发展...............................21.2.1应变测试的现状与发展...................

4、....................21.2.2无线通信技术的现状与发展...................................31.3论文的主要任务..................................................42系统总体设计方案.....................................................52.1系统设计要求....................................................52.2系统设计方案的确定.

5、.............................................62.2.1系统整体功能框图...........................................62.2.2无线通信技术的选择.........................................72.3系统器件的选用.................................................113系统硬件设计..............................................

6、..........153.1应变数据采集...................................................153.1.1电阻应变片的工作原理......................................163.1.2电阻应变片的选择..........................................173.1.3应变测量电桥的设计........................................183.1.4温度误差和补偿...................

7、.........................203.2应变数据发射装置...............................................213.2.1放大电路..................................................213.2.2滤波电路..................................................253.2.3无线发射模块..............................................273.3应变

8、数据接收装置...............................................383.3.1D/A转换电路设计....................