Thermal EMF characterization of a built-up scanner for fully automatic multifunction calibrator: DC voltage measurement in SNSU BSN

Azzumar, Muhammad; Syahadi, Mohamad; Khairiyati, Lukluk; Munir, Miftahul; Sardjono, Hadi; Faisal, Agah; Perangin-Angin, Windi Kurnia; Chotimah, Ashri Khusnul; Hapiddin, Asep; Ratnaningsih, Ratnaningsih; Boynawan, Ahmad Mohamad

doi:10.1063/5.0108855

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In previous research, early characterization of thermal EMF was realized using a direct measurement method [7]. Then, the thermal EMF was calculated by comparing input voltage and output voltage using this formula:…”

Section: Thermal Emf Characterizationmentioning

confidence: 99%

“…These switches could generate offset voltage in DC voltage measurement due to thermal electromotive force (EMF) produced from temperature variation on relay contacts and terminals. The residual thermal EMF of a built-up scanner in DC voltage measurement was initially characterized and its value significantly impacted low voltage quantities [7]. This paper proposed an advanced approach using the differential measurement method to reduce the thermal EMF effect.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of developed low thermal scanner for DC voltage measurement

Munir¹,

Azzumar²,

Syahadi³

2023

Eng. Res. Express

Self Cite

View full text Add to dashboard Cite

A low thermal scanner has been completely developed for improving DC voltage calibration from semi-automatic to fully automatic measurement system. The application of the switching system inside the built-up scanner introduced offset voltage to the measurement due to thermal electromotive force (EMF). A differential measurement method was proposed to characterize the thermal EMF of the scanner, and this method has been compared to previous characterization using the direct measurement method. The results show that the differential measurement method could minimize the thermal EMF effect, and the thermal EMF had a negligible contribution to the measurement for uncertainty levels around 10 to 11 ppm. Therefore, the differential measurement method is recommended for DC voltage calibration with uncertainty levels below 10 ppm since the thermal EMF can significantly affect the measurement. Furthermore, the direct measurement method is suggested for DC voltage calibration with uncertainty levels above 11 ppm since it can speed up the measurement process.

show abstract

Section: Thermal Emf Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%