Referenced Items are not available for this document.
We report on the development of a novel highly linear voltage ramp generator to be used for the traceable calibration of picoamperemeters. The generator is based on two digital-to-analog converters, one of them being used to compensate for the differential nonlinearity of the other one. The generator is completely controllable by a computer, its voltage slope dV/dt is adjustable between 1 and 1000 mV/s. During a ramp running between -10 and +10 V, the slope shows a relative variation of only 1.3 middot10-5 (relative standard deviation). Due to a small output filter time constant of only 10 ms, we are, for the first time, able to conduct dynamic measurements of picoamperemeters with no sacrifice of linearity.
Published in:
Instrumentation and Measurement, IEEE Transactions on
(Volume:58
,
Issue:
4
)
Date of Publication: April 2009
- Page(s):
- 756 - 760
- ISSN :
- 0018-9456
- INSPEC Accession Number:
- 10505254
- Digital Object Identifier :
- 10.1109/TIM.2008.2010675
- Product Type:
- Journals & Magazines
- Date of Publication :
- 27 January 2009
- Date of Current Version :
- 10 March 2009
- Issue Date :
- April 2009
- Sponsored by :
- IEEE Instrumentation and Measurement Society
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