| 1. | A computer controls the whole process of measurements by communicating with the lock - in amplifier via rs232 interface 计算机通过rs232接口与锁相放大器通信,控制测量的全过程。 |
| 2. | And the process of measurement was made . the means to get three dimensional velocity , which was gotten from two two - dimensional flow fields , was brought forward 分析了从已有二维流场得到三维速度的方法,确立了完整求解三维速度的步骤,这样可以得到三维速度以及湍动能。 |
| 3. | The transmitter electronic system performs the digital processing of measurement and generates the output signal with the communication module according to profibus pa standard 传感器的电子系统用于测量时的数字测算过程以及输出信号的生成。输出信号的生成依靠基于现场总线pa标准的通信模块来完成。 |
| 4. | In addition , the paper deals with the instrumental working principle for carrying out this acquisition method and some technological problems which are likely to occur in the process of measurement 该方式的主要特点在于一次测量操作可同时获取极化二次场随时间衰减和随深度变化的信息,同时还讨论实现该采集方式的仪器工作原理和信号测量过程中的一些技术问题。 |
| 5. | By the research on the application range and the theory of piv technology , it was demonstrated that piv technology can be used to research the flow field of pump sump , and the process of measurement was made 论文首先对piv技术进行了研究。研究了piv的应用范围、原理及使用方法。从理论上分析了采用piv技术研究水泵吸水池流场的可行性,并得出了利用piv技术测量分析流场的步骤。 |
| 6. | In the processing of measurement , the measurement data always consists of measurement error by the influence of random disturbed signal and measurement error . it is necessary to process and revise the measurement data , and get it " s estimate value 在电网监测过程中,由于有测量噪声和随机干扰信号的影响,实际的量测数据往往存在误差,这就需要对监测数据进行处理和校正,从中得到所需要的各种参量的估计值。 |