Dr.Piyaphat Phoonthong
Researcher/Metrologist
Time and Frequency Laboratory
Electrical Metrology Department
National Institute of Metrology (Thailand)
3/4-5 Moo.3, Klong 5
Klong Luang, Pathumthani
12120, Thailand
Electrical Metrology Department, National Institute of Metrology (Thailand)
Time and Frequency Laboratory 