| 1. | An experiment method for measuring the proper frequency of spring vibrator 振动系统固有频率的一种实验测量方法 |
| 2. | Proper frequency and amplitude for different soil and layer depth 适宜的振幅、振动频率,适合不同土壤和铺层厚度。 |
| 3. | In the pre - procession of front radio frequency , the super - heterodyne technology which get proper a / d sampling rate through choosing a proper frequency and bandwidth is adopted 射频前端预处理采用成熟的超外差技术,选择合适的中频和带宽,得到合适的a d采样速率。 |
| 4. | This algorithm can capture and trace the signal with the frequency shift larger than the symbol rate under low e ( subscript b ) / n0 when combining with proper frequency trace algorithm 该算法结合相应的频率跟踪算法能够在低信噪比条件下实现多普勒频移远大于符号速率的信号捕获与跟踪。 |
| 5. | In this paper , a pump auto piping concrete made by some company is used as an object of study , and tbs - 2000 strain measuring system is used to measure the pump in the way of dynamic stress , statistic stress and proper frequency 本论文以某公司生产的水泥混凝土泵车为研究对象,采用tbs ? 2000应变测试系统对该泵车进行了动、静态应力测试及固有频率测试。 |
| 6. | Data processing software is designed for tbs - 2000 strain measuring system in the classical virtual instruments engineering workbench ; it is applied to process the data which are acquired in the way of dynamic stress analysis , statistic stress analysis and proper frequency analysis 利用虚拟仪器的典型开发平台labview针对tbs ? 2000应变测试系统开发了数据处理软件;利用该数据处理软件对测试所得的数据进行了动、静应力分析和固有频率分析。 |