PSPICE MODEL FOR SIMULATING THE GMI EFFECT IN MAGNETIC AMORPHOUS WIRES |
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| Cristian Fosalau, Catalin Damian, Cristian Zet |
- Abstract:
- The paper presents an electrical model developed for Pspice simulation of the behavior of the magnetic amorphous wires working under the Giant Magnetoimpedance (GMI) effect. The model was developed in order to facilitate the design of the signal conditioning circuitry belonging to the new category of transducers whose sensitive elements are based on the GMI effect. Its complexity arises from the fact that the effect is influenced by many internal or external factors whose actions have to be taken into consideration in the designing phase. In order to assess its performances, the model was tested by simulating a magnetic field transducer whose signal processing circuit is reprezented by a Colpitts oscillator. It was found that the model provides good accuracy even in nonlinear regions of the characteristic, where the mathematical approximation is quite imprecise. Theoretically, the model can be extended to any number of input quantities, but its complexity and computation time increase exponentially. By extension, it can be successfully utilized to simulate transducers based on any other nonlinear magnetic material.
- Download:
- IMEKO-TC4-2008-153.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements
- Title:
- XVIth IMEKO TC4 International Symposium on Electrical Measurements and Instrumentation (together with 13th IMEKO TC4 Workshop on ADC Modelling and Testing)
- Place:
- Florence, ITALY
- Time:
- 22 September 2008 - 24 September 2008