Siam Physics Congress 2015

Controlling output signal of frequency generator for NMR

20 May 2015, 16:30

15m

Phokeethra 2

Oral presentation Instrumentation, Metrology and Standards Instrumentation, Metrology and Standards

Speaker

Mr Klitsadee Yubonmhat (Department of Physics, Faculty of Science, Khon Kaen University, 40002, Thailand)

Description

NMR frequency generator was built using digital frequency generator (PTS310) and AVR microcontroller. The microcontroller was programmed to receive a frequency value from computer. After processing, the microcontroller sent 24 parallel data bits to control the digital frequency generator (PTS310). The frequency value is restricted between 0-16 MHz. It was found that the output frequency can be controlled from 0.00000 MHz to 9.70129 MHz. The error of output frequency is 0.20%.