| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024null′ meth′od, - Electronics, Electricitya method of measurement using an electrical device, as a Wheatstone bridge, in which the quantity to be measured is balanced by an opposing known quantity that is varied until the resultant of the two is zero.
WordReference Random House Unabridged Dictionary of American English © 2024Wheat′stone bridge′, [Elect.]- Electricitya circuit for measuring an unknown resistance by comparing it with known resistances.
Also, Wheat′stone's bridge′. Cf. bridge (def. 9), null method. - named after C. Wheatstone 1870–75
|