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This paper implements a PLC(programmable logic controller) based virtual instrument that performs measure and control in mechanical characteristics test for flow control throttle in gas pipeline. The development of the instrument is based on PLC and LabVIEW IDE, which features a novel combination of leading industrial control tools to construct the virtual instrument. Since OPC(OLE for process control)...
This paper elaborates on the research of the track laser measuring instrument based on CCD, which uses laser, the strong directional light source, as a measurement benchmarks. The laser beam imaged by the CCD, and then the laser spot center can be calculated by the data processing system, as a result the vertical and horizontal deviation of the track can be measured in the instrument. It can measure...
For real-time environmental monitoring of air quality to design the system, use the virtual instrument test software LabVIEW to achieve real-time monitoring of pollutant gases, With database access toolkit to access Access database for LabSQL, display the Real time monitoring data and trends, Environmental monitoring personnel Customized monitoring time and data storage time based on actual conditions,...
In this paper, flight faults are generated and visual aircraft instruments are created as well as real-time information communication between simulation flight data and virtual instruments is established. Particularly, dynamical faults generation and its corresponding display system are developed and simulated in detail. Finally, the system is validated for authenticity and reliability by taking the...
Acording to the theory of fraunhofer diffraction, the silt-diffraction processes is simulated based on labview which has powerful function. First, the change of the single slit-diffraction intensity can be observed when the wavelength of light, slot width and focal length are adjusted. Secondly, the simulation can be used for the process of theoretical teaching beacause the application of the simulation...
Based on GSM Internet of Things technology, this thesis discusses the methods of designing the software and hardware for developing remote measuring system. It deals with the communications and blocked SMS among GSM modules. And at the mean time, it overcomes the problems caused by accidental action and unstable working status. It points out the direction for the development of instrument in networking...
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