1·Please return these ammeters and voltmeters on board as soon as they are rectified.
电流表与电压表效正后请尽快送回船上。
2·A kind of circuit for automatic range selection of voltmeters is introduced and designed.
提出并设计了一种适用于电压表的量程自动转换电路。
3·This normalizing device is a standard instrument used to calibrate the intrinsic errors of the various kinds of electronic voltmeters.
该校准仪是用于校准各种电子电压表基本误差的专用标准仪器，具有定点频率下正弦波信号输出的标准电压源。
4·It introduces the features and working mode of intelligent numerical voltmeters, and describes its application combined with specific work.
介绍了智能化数字电压表的特点和工作方式，结合具体工作，阐述了智能化数字表在电工测量中的应用。
5·Digital voltmeters, instead of voltage meters and other instruments, are used to measure Hull voltage and then to calculate the axial magnetic induction distribution in charged straight spiral tubes.
给出了一种利用霍尔效应测量螺线管磁场的新方法：用数字电压表取代电位差计等诸多仪器测量霍尔电势差，进而计算出通电长直螺线管内轴向磁场的分布。