| 1. | The 54600 - series scopes are the only deep - memory scopes that respond instantly to your control inputs with a fast , responsive display 54600系列示波器是能对多路被测信号提供快速即时显示的唯一一 |
| 2. | 2 . with the mathematical model , the simulation on o 3 . 5 x 8 . 75mm pillar copper cylinders for varying the pulse width of the signal has been done 2应用所建模型,对3 . 5 8 . 75mm柱形铜柱进行了被测信号脉宽变化的仿真计算。 |
| 3. | After reducing the noise by the technique of signal enhancement , the more extract approximation results than traditional approach can be achieved with the tls method 在采用信号增强技术降低观测噪声后,利用总体最小二乘方法估计被测信号参数可以得到比传统方法更好的分析结果。 |
| 4. | This inverse filter can consider the efficacious bandwidth of signal tested and the character of measurement system synchronously so we can acquire the estimating value of signal tested and the error is little 这种反滤波器兼顾被测信号的有效带宽和测试系统的特性,能够得到被测信号误差很小的估计值。 |
| 5. | According to the characteristics of the signal under testing , the user can configure the sampling rate and range . besides , different a / d channels can work under different sampling rates and ranges 用户可根据被测信号特征,通过程序设置采样频率、量程,可实现各a / d通道在不同采样频率和测量范围下工作。 |
| 6. | The phase detecting error caused by local oscillator frequency drift and non - synchronization of measurement signal and gate signal is eliminated and the measurement speed is improved at the same time 该方法可以有效的消除因本振信号频率漂移及闸门信号与被测信号的非同步引起的测相误差,同时提高了测量速度。 |
| 7. | The method is limited when the conventional dft - based techniques are used in sinusoid detecting in the presence of strong signal and weak signal in noise 摘要就被测信号的强弱差异对使用常规dft谱峰搜索的信号检测影响,基于非监督的递归算法,通过选择适当的门限参数,提出了一种适合于强弱信号并存的多信号检测方法。 |
| 8. | Several performance parameters of the signal under test can be provided in time - domain and the measurement results report can be shown in the forms of plots and tables . the software system is provided with friendly interface 该平台可完成对被测信号的时域各项技术指标的测定,并以图形或数据表的形式提供相应的测试结果报告,系统具有友好的人机交互界面。 |
| 9. | It can automatically match rotational speed generator , electromagnetic rotational speed sensor and electromagnetic turbine flowmeter . moreover it can adapted measured signal that is 1v ~ 300v voltage and 1hz ~ 2500hz frequency 能自动匹配测速发电机、电磁式测速传感器和电磁涡轮流量计,适应电压峰峰值从1伏以下至300多伏、频率从1hz以下至2500hz以上的被测信号。 |
| 10. | The hardware of system is used sensor and signal conditioning circuit to collect the signal and communication with the computer using the pci2013 . for the undulation of temperature and driven current will influence the testing result , they need to be invariableness during testing 系统硬件以传感器和相应的信号调理电路作为前向通道拾取被测信号,利用基于pci高速总线的pci2013数据采集卡和串口模块实现与计算机的数据传输和命令通讯。 |