1-A and-120 mA Thin-Film Multijunction Thermal Converters.
- Resource Type
- Article
- Authors
- Laiz, Héctor; Wunsch, Thomas F.; Kinard, Joseph R.; Thomas E. Lipe
- Source
- IEEE Transactions on Instrumentation & Measurement. Apr2005, Vol. 54 Issue 2, p803-806. 4p.
- Subject
- *COPPER
*GOLD
*DIRECT currents
*ALTERNATING currents
*PHYSICS
*METALS
- Language
- ISSN
- 0018-9456
We report on the development of thin-film multi- junction thermal converters for the measurement of ac currents up to 10 A without relying on parallel current shunts. The materials and designs chosen for these devices have been optimized to provide high accuracy over a wide range of input levels and frequencies. Preliminary measurements on a 10-A chip made with a copper-gold heater indicate that its ac-dc difference is nearly zero from 10 Hz to 100 kHz, and that the ac-dc difference is independent of input current level. [ABSTRACT FROM AUTHOR]