Construction of a Near Ideal Nanoammeter

dc.contributor.author	Wijesundera, R.P.	en_US
dc.contributor.author	Kalingamudali, S.R.D.	en_US
dc.contributor.author	Jayasuriya, K.D.	en_US
dc.date.accessioned	2014-11-19T04:46:05Z
dc.date.available	2014-11-19T04:46:05Z
dc.date.issued	1998
dc.identifier.citation	RP Wijesundara, SRD Kalingamudali and KD Jayasuriya, 1998, Construction of a near ideal nanoammeter, Proc. 14th Tech. Sess. Inst. Phys., Sri Lanka, pp. 50-53
dc.identifier.uri	http://repository.kln.ac.lk/jspui/handle/123456789/4104
dc.identifier.uri	http://www.ip-sl.org/
dc.description.abstract	A near ideal ac/dc nanoammeter was constructed using two operational amplifiers (op-amp) and a voltmeter. Small currents were converted into a voltage by the first op-amp and this was amplified into a larger voltage by the second op-amp. The amplified voltage was measuredby the voltmeter. The constructed meter has 10 and 100 nA ranges for the dc current measurements and 100 nA range for the ac current measurements.All the ranges were calibrated using a digital picoammeter. As compared to commercially available nanoammeters with similar features this meter has higher advantages such as almost zero internal resistance and negligible operating bias current. The construction cost of the meter is very low compared to a commercial ac/dc nanoammeter.	en_US
dc.subject	Kalinga	en_US
dc.title	Construction of a Near Ideal Nanoammeter
dc.type	conference_item	en_US
dc.identifier.department	Physics	en_US