Remote Realization Of Sound Velocity Measurement

In order to improve resource utilization,universal remote education and remote experiment,this paper,taking sound velocity measurement experiment as the research object,based on laboratory has developed a remote control experiment platform,research and realize the sound velocity measuring remote experiment,further discuss and research the remote experiment method."Measurement of sound speed" is a basic experimental project of university physics.It requires hands-on operation,careful observation and reading,etc.,so that students can better integrate what they have learned.Through the analysis of the theoretical and functional:The sound velocity measurement system is realized.Using USB data acquisition card to control stepping motor to realize the function of remote operation experiment instrument;With double cameras connected to the embedded devices to realize remote image acquisition function,in order to achieve the purpose of the experiment site and read the experimental data,based on ZigBee CC2530 chips and SHT11 temperature and humidity sensor module implements experimental environment temperature acquisition function.The software system design has completed.Has realized data export and storage function based on Labview design operation front panel,.virtual oscilloscope and drive control program,The application of usb-over-network and Internet technology to realize remote communication between web service end and experimental instrument.The Web publishing tool provided by Labview will upload the experiment to the webpage,and the experimenter can access the experiment through the generated UWP and conduct the remote experiment operation.Then,complete the design of the software system.Based on Labview,the pre operation panel,virtual oscillograph and driver control program are designed to realize data export and storage function.Usb-over-network and Internet technology are used to realize remote communication between web server and experimental instruments.The Web publishing tool,provided by Labview,uploads the experiment to the web page,and the experimenters can access the experiment through the generated UWP and carry out remote experimental operations.The comparison between manual and remote measurement is conducted.The method of resonance interferometry and lissae are used to test the remote acoustic velocity measurement system.The test result show that the velocity of sound remote experimental measurement result and the measured result,the same can be used for experiment teaching,can also be used for related experimental research,has a good application promotion value.