| 摘要 |
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 makesat 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 makesalso 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.1 dwg |
