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  5. VOL 42, NO 2 (2020)
  6. pp. 69-90

SPICE MODEL OF A LOGARITHMIC CONVERTER FOR MAGNETIC TRACKING SYSTEMS

T.A. Marusenkova

Èlektron. model. 2020, 42(2):69-90
https://doi.org/10.15407/emodel.42.02.069

ABSTRACT

The work deals with the problem of enhancing the operating characteristics of magnetic tracking devices. Magnetic tracking technology is based on calculating the spatial position of an object upon measuring reference magnetic fields in a low-frequency radiation spectrum. The paper presents a solution to development of a mathematical model for a logarithmic signal converter, which is one of the main components of a magnetic tracking device. The converter would enable efficient operation of a magnetic tracking device in a wide measurement range. The parameters of the developed SPICE model are easy to tune. Thus, the model can be efficiently adjusted to conform to experimental data. The parametric optimization of logarithmic converters upon the proposed model gives rise to an efficient analysis of the influence of destabilizing factors on signal compression.

KEYWORDS

magnetic tracking, logarithmic converter, SPICE model, analog front-end, signal transducer.

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