Calibration of lock-in amplifiers

Project Description

Methods for the calibration of the gain of a digital lock-in amplifier in the low frequency  (<100 Hz) range and for voltage range between 1 and 100 µV are investigated.
The measurements aim to the mutual validation of the different methods with a travelling standard.


Progress Report 2020-02-26

The project partners investigated two different methods for the calibration of the gain of a digital lock-in amplifier. The INRIM calibration system was moved to METAS in the period 4 to 7 February 2020. The INRIM and METAS systems were employed to calibrate two lock-in amplifiers (Stanford Research SR850) on their 1 μV and 10 μV scales at two different frequencies (20 Hz and 103 Hz).
Data processing and final reporting is ongoing.
 

Subjects
Electricity and Magnetism (EM)
Coordinator
Alessandro Cultrera, INRIM (Italy)
Phone: +39 011 3919 320
E-Mail: a.cultrera@inrim.it
Coordinating Institute
INRIM (Italy)
Participating Partners
METAS (Switzerland)