Abstract
The paper presents the digital phase measuring instrument based on MSP430 single-chip microcomputer. The instrument adopted the technology of DDS to generate sinusoidal signal, and FPGA to achieve phase difference measurement and polarity judgment. The system is composed of a filtering circuit, a phase shifting network, a shaping circuit, matrix keyboard, LCD display module and the frequency is in the range from 200Hz to 10kHz, the phase difference is in the range of-180°~+180 °, the resolution ratio is 0.1°, the absolute error is less than ±2 °, and the relative error is less than ± 3%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
