| 1. | Measurement for virtual value of alternating - current based on pic12f
629的交流电有效值测量 |
| 2. | The theory and application of the virtual value chain viewed as information
虚拟价值链的理论与应用 |
| 3. | In order to satisfy the real - time measurement , we studied the fast arithmetic of virtual value of voltage and current , power factor
为了满足实时检测要求，研究了计算电压、电流有效值和功率因数的快速算法。 |
| 4. | The way of fast calculating the virtual value of voltage by pc , the way of calculating the power frequency and power factor
数据处理技术包括：交流电压有效值快速计算的原理与方法；电网电压频率、功率因数的计算原理与方法。 |
| 5. | The defect of this method is that the virtual value will lag the instantaneous value about one cycle . this event result in the virtual value is not exact
这种方法的缺点是有效值的求取要滞后瞬时值将近一个周期，使得有效值的求取并不准确。 |
| 6. | If used as the latter , electric parameters such as amplitude , virtual value and phase can be real - time measured . the practicability of this system is quite good
单独作为测量系统时能实时测量信号的幅度、有效值、相位等电量参数，具有较强的实用性。 |
| 7. | Part iv : analysis tools in value creation , including five aspects : the value chain , the virtual value chain , the supply chain , the value network and the tool integration
第四部分价值创造的分析工具：包括五个方面的内容，价值链、虚拟价值链、供应链、价值网和工具的整合。 |
| 8. | 5 , using the method of virtual value . kurtosis , time domain averaging and so on to pick up equipment fault information , and processing data by the method of svm theory
5 、利用有效值、峭度、时域平均分析等方法提取设备故障信息，并利用支持向量机( svm )理论进行机器学习算法研究。 |
| 9. | We design a fast calculating amplitude method : obtain two instantaneous voltages at first , after that calculate the current voltage virtual value once we get another instantaneous voltage
我们设计了一种快速计算幅值的方法，只需先采得两个电压瞬时值，之后每采样一个电压瞬时值即可求得当前的电压幅值。 |
| 10. | The traditional method is that sampling 20 equidistance discrete voltages to calculate the virtual value . to gain the virtual value , we firstly average their square values , and then extract it
传统的计算有效值的方法是利用一个周期内等距离散的20个采样点的瞬时值进行求解，通过计算它们的均方根值来得到有效值。 |
