1) zero across
过零法
1.
In this paper,three methods such as zero across and correlation analysis and FFT are introduced to measure phase difference based on virtual instrument.
介绍3种基于虚拟仪器的相位差测量方法:过零法、频谱分析法(FFT)、相关分析法。
2) Cross-zero method
过零算法
1.
Pipe-leak detector based on polarity correlation algorithm with cross-zero method;
基于极性相关过零算法的管道测漏仪
3) zero-crossing estimation
过零测算法
1.
Based on the zero-crossing characteristic of the line voltage and current differential, a zero-crossing estimation is developed to calculate the system impedance.
该测量方法利用不控整流桥电路在换相时的自然短路过程来测算电网系统阻抗,并根据电网线电压和电流变化率过零时的电路特点,引入过零测算法来计算测量值,使本方法能在线、实时测量单相、三相对称和不对称电网系统。
4) measurement of over-zero method
过零法测量
5) zero-crossing timing method
过零时间法
6) crossing zero comparison algorithm
过零比较法
补充资料：零息票债券；零券息债券
零息票债券；零券息债券一种以低于票面价值的价格发行的债务工具。债券不支付任何票息；它在到期日是以面值赎回的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条