Measuring Planck constant and optical wavelength measurements based on LabVIEW and machine vision
An integrated experimental device for Planck constant and optical wavelength measure-ments based on virtual instrument LabVIEW and machine vision was designed.The light emitting di-ode was used as the light source.The Planck constant could be obtained by using several software,such as NI Vision Builder AI based on machine vision technology,ImageJ and Origin.It could be found that the measured value was closed to the recognized Planck constant.The device provided a new method to measure the Planck constant and could be used as supplyment for the teaching of the traditional experiment of measuring Planck constant by photoelectric effect method,which was condu-cive to the cultivation and improvement of students'innovation ability.
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