How low must an instrument go to be classed as an electrometer, and has the definition evolved over the years? These questions occurred to me as I perused a blog post from EDN technical editor Paul ...

WHEN the electrometer triode valve is used for the measurement of ionisation currents obtained in the ionisation spectrometer 1,2, a high resistance, consisting of a pencil line on amber, is commonly ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. overall: 9 in x 6 1/2 in x 11 in; ...

Guest columnist Dale Cigoy, lead applications engineer at Keithley Instruments, outlines how an understanding of the challenges for testing capacitors can be invaluable to engineers. Capacitors are ...

AMONGST the many forms of electrometer that derive their origin from the quadrant electrometer of Sir William Thomson is that of Edelmann, which is very extensively used in the physical laboratories ...