N-TERMINAL DEVICE PARAMETER BRIDGE METER Russian patent published in 2014 - IPC G01R17/10 

FIELD: instrumentation.

SUBSTANCE: bridge meter comprises generator, four-branch bridge circuit and zero-indicator. Bridge circuit consists of two branches, first branch incorporating first and second multi-element two-terminal devices connected in series. Second branch incorporates signal resistor and terminals for tested object. Each of two multi-element two-terminal devices on first branch makes the C-R through circuit. Note here that total number of extra through circuits makes $$\left[\frac{n}{2}-2\right]$$ at even number of elements n in two-terminal device of tested object starting from the third through circuit. In the latter case, last C-R circuit is complete. At uneven number of elements b, the number of extra through circuits makes $$\left[\frac{n+1}{2}-2\right]$$ also starting form third through circuit. In this case the last through circuit is incomplete and comprises only one capacitor connected parallel with resistor of penultimate through circuit. Every next C-R through circuit is connected in parallel with the resistor of previous C-R through circuit. The number of elements in first branch two-terminal device makes the number of elements n in two-terminal device of tested object.

EFFECT: enhanced performances.

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