Airbath test GPIB code running on Pi3 + NI GPIB-USB-HS FC - April 2019
HP3245 source +100/-100/+100 mA currents into JRL 1 Ohm in parallel with film 47uFCH1 : HP3458A is detector for JRL-1, Delta-3 mode Rcalc = (Vmeas1-Zcorr - 2*Vmeas2-Zcorr + Vmeas3-Zcorr) / 4 / 0.1
F5720/HLK source +100/-100/+100 mA currents into JRL 1 Ohm
CH2 : HP3458B is detector for JRL-1, Delta-3 mode Rcalc = (Vmeas1-Zcorr - 2*Vmeas2-Zcorr + Vmeas3-Zcorr) / 4 / 0.1
Reference levels:
10 VDC;
Result CSV-data
Workflow:
* RPI accesses DMMs via GPIB and reads data.* Data is formatted by python script into DSV string and written/append to file on FTP
* DSV-file is visible publicly on https://xdevs.com/datashort/
* Page http://xdevs.com/datalog_mm/ runs D3.js javascript library to read DSV file test.log to input data
* D3.js plots SVG graph online :)