许老师的数字电桥V2版本此版本为全自动版本实测最大误差0.28 ，大部分实测，误差为0.1 左右（即0.15 到0.05 之间）

最小分辨力：0.3mR，低阻固有误差2mR（一般在1mR以内）

相位误差：可能可以达到0.003这一级别，与STC版恒阻自动桥差不多。

频率：支持多频点100Hz，200Hz，400Hz，1kHz，2kHz，10kHz，很适合对音频器件扫频测试-Digital Bridge V2 version of this version many teachers for the automatic version measured maximum error of 0.28 , the majority found, the error is (between 0.15　to 0.05　that is) about 0.1

Minimum resolution: 0.3mR, low resistivity intrinsic error 2mR (usually within 1mR)

Phase error: It may be able to achieve this level of 0.003, and the STC version automatically bridge almost constant resistance.

Frequency: support for multi-frequency 100Hz, 200Hz, 400Hz, 1kHz, 2kHz, 10kHz, it is suitable for testing audio devices sweep