Description: A low frequency digital phase measuring instrument based on field programmable gate array (FPGA) is designed. The measuring instrument includes moving believe that number generator and digital phase measurement instrument two parts, respectively, on the occurrence of believing and digital display, and its frequency, phase difference of the preset after signal phase shift and the phase shift of the signal phase and frequency of several measurement and display functions. Among them, the digital displacement trust generator can generate the sinusoidal signal of preset frequency, and can also produce the two paths of the preset phase difference, and can display the preset frequency or phase difference value. The phase measuring instrument can measure the frequency, phase difference measurement and display. Both parts are implemented by digital technology based on FPGA, so that the system has strong anti-interference ability.
Good reliability, etc.
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