Based on relative fresh foreign and domestic scientific research results about intelligent apparatus and instruments, we adopt SCM to be the main controller of the meter, utilize former DA-16 low frequency MV-meter, realize the improvement of the DA-16 low frequency MV-meter under the premise that doesn’t change its work principle, and transforms the needle output of the MV-meter to digital display. The improvement of MV-meter acquires large advancements in many aspects such as the automatization of measurement process, the data processing of measurement result and the display precision, and the improved MV-meter can not only enhance the reading precision, but fully reduce the reading time, and its use is more convenient and simple in the experiment.
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