| 释义 |
null-balance recorder null-balance recorder[′nəl ¦bal·əns ri‚kȯrd·ər] (engineering) An instrument in which a motor-driven slide wire in a measuring circuit is continuously adjusted so that the voltage or current to be measured will be balanced against the voltage or current from this circuit; a pen linked to the slide wire makes a graphical record of its position as a function of time. |