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  2. EIDORS - Wikipedia

    en.wikipedia.org/wiki/EIDORS

    EIDORS is an open-source software tool box written mainly in MATLAB/GNU Octave designed primarily for image reconstruction from electrical impedance tomography (EIT) data, in a biomedical, industrial or geophysical setting. The name was originally an acronym for Electrical Impedance Tomography and Diffuse Optical Reconstruction Software.

  3. Hitachi - Wikipedia

    en.wikipedia.org/wiki/Hitachi

    Hitachi, Ltd. [nb 1] (Japanese pronunciation: [çi̥taꜜtɕi]) is a Japanese multinational conglomerate founded in 1910 and headquartered in Chiyoda, Tokyo.The company is active in various industries, including digital systems, power and renewable energy, railway systems, healthcare products, and financial systems. [4]

  4. Impedance analyzer - Wikipedia

    en.wikipedia.org/wiki/Impedance_analyzer

    An impedance analyzer is a type of electronic test equipment used to measure complex electrical impedance as a function of test frequency. Impedance is an important parameter used to characterize electronic components , electronic circuits , and the materials used to make components.

  5. Time-domain reflectometer - Wikipedia

    en.wikipedia.org/wiki/Time-domain_reflectometer

    Generally, the reflections will have the same shape as the incident signal, but their sign and magnitude depend on the change in impedance level. If there is a step increase in the impedance, then the reflection will have the same sign as the incident signal; if there is a step decrease in impedance, the reflection will have the opposite sign.

  6. Constant phase element - Wikipedia

    en.wikipedia.org/wiki/Constant_phase_element

    In electronics, a constant phase element is an equivalent electrical circuit component that models the behaviour of a double layer, that is, an imperfect capacitor (see double-layer capacitance).

  7. Randles circuit - Wikipedia

    en.wikipedia.org/wiki/Randles_circuit

    Randles circuit schematic. In electrochemistry, a Randles circuit is an equivalent electrical circuit that consists of an active electrolyte resistance R S in series with the parallel combination of the double-layer capacitance C dl and an impedance (Z w) of a faradaic reaction.

  8. Negative impedance converter - Wikipedia

    en.wikipedia.org/wiki/Negative_impedance_converter

    By reducing the impedance of the load (i.e., by causing the load to draw more current), the generator–NIC system can be rendered stable again. In principle, if the Norton equivalent current source was replaced with a Thévenin equivalent voltage source, a VNIC of equivalent magnitude could be placed in series with the voltage source's series ...

  9. Zigzag transformer - Wikipedia

    en.wikipedia.org/wiki/Zigzag_transformer

    The transformer's impedance should not be too low for desired maximum fault current. Impedance can be added after the secondaries are summed to limit maximum fault currents (the 3I o path). [6] A combination of Y (wye or star), delta, and zigzag windings may be used to achieve a vector phase shift. For example, an electrical network may have a ...