And the technology of auto-zero is used to overcome the offset disadvantage of linear reference and cancel the offset voltage of amplifier.
同时运用自动调零技术，克服了线性基准的失调缺陷，消除了运放的失调电压，提高了输出电压的失调精度。
The principle of auto zero correction and auto scaling is also presented.
还介绍了自动校零和自动定标原理。
The principle and software of the auto zero point adjustment circuit in VS tiltmeter are described.
介绍垂直摆倾斜仪自动调零的电路、原理和软件。当摆偏离零位越出记录范围时，仪器将不能正常进行记录。
Measure function: can measure current, voltage, active power, reactive power, frequency, zero sequence current, electric energy, 2 pulse inputs implement watt-hour meter auto read;
测量功能：高精度测量电流电压、P、Q、功率因数、频率、零序电流、计算电度；2路脉冲量输入实现外部电度表自动抄表；
Protection devices is equipped with zero-sequence differential protection for the auto-transformer.
而保护装置针对自耦变压器，还配置了零序差动保护。
Protection devices is equipped with zero-sequence differential protection for the auto-transformer.
而保护装置针对自耦变压器，还配置了零序差动保护。
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