English translation for "seismic recorder"
|
- 地震记录仪
Related Translations:
- Example Sentences:
| 1. | The thesis aims to give a scheme of designing a 48 - channel collected seismic recorder based on pci bus , and a testing machine has been completed in the basis of the scheme . pci bus provides a high data transfer speed , which solve the problem of transfering a mass of data in a short period of time ; moreover , two assistant channels are provided to sample reference signal ; the function of data correlation in real - time is also provied in the software of the instrumental system
论文论述了pci总线功能接口的实现和数据采集模块的设计,给出了利用pci9054接口芯片设计pci接口的详细过程,并利用driverstudio为pci数据采集系统编写了设备驱动程序;在数据采集模块的设计中,主要完成的工作有多通道数据采集、浮点放大以及系统的低噪声设计,并利用cpld设计了整个系统的时序逻辑。 | | 2. | The principle of vibrator is to introduce scattered energy to underground in a comparatively long time , and collect the energy through correlation and compress it into a narrow pulse . the portable high - frequency vibrator system , developed by key lab of geo - exploration and instrumentation ( jilin univ ) , ministry of education , generates chirp signal and accumulates energy through a long - time bestiring . according to the characteristics of vibrator , the seismic recorder that operates on - line with vibrator must have these functions as follow : first , it must have the ability of recording a great quantity of data . second , it must have assistant channels to sample reference signal . third , it must have the function of data correlation in real - time
可控震源利用可控的小能量、长时间激发波来实现冲击震源瞬时产生的大能量激发波。在利用可控震源进行地震勘探时,要求地震仪长时间记录地震信号,这对地震仪的采样长度提出了很高的要求。受存储量和数据传输速度的限制,绝大多数地震仪很难对如此大的数据量进行记录,同时,可控震源要求地震仪有两个辅助通道并且具有数据相关功能,目前国内还没有出现满足要求的地震仪产品。 | | 3. | The present products of seismic recorders are generally divided into two types , distributed seismic recorders and collected ones . restricted by memory and data transfer speed , the distributed seismic recorder can hardly meet the demand of recording a great quantity of data . furthermore , most of domestic collected seismic recorder do not have particular assistant channels needed by vibrator and do not have the function of data correlation in real - time
本文提出了一种基于pci总线的集中式地震仪的设计方案,实现了大数据量的采集和现场相关功能,并初步完成了样机的设计。 pci总线具有高达132mbyte / s的传输速率,解决了大数据量的瞬间传输问题,基于pci总线的集中式地震仪在进行地震数据采集时可以边采集边传输,无需传输等待时间。 | | 4. | This paper gives a time - synchronization technique bases on gps time service signal which is used in broad band seismic recorder 。 by world coordination time offered by gps - - utc ( usno ) , adjust local clock base on gps signal , gain high nicety clock signal , clock precision reachs 10 - 6 。 this clock is the time source of broad band seismic recorder , bring the whole seismic recorder works in same time base . 1pps time base with high stability can be used as in - phase , spring , time and start - stop of every collection mode , while the scale under second make a precise time mark to receive data of broad band seismic recorder
针对接收机中gps信号的噪声进行kalman滤波软件处理, kalman滤波可以对gps信号与本地晶振时钟的时差数据在大噪声中进行平滑,在较短时间内估计出高精度的时差数据。系统消除了gps秒脉冲信号的ms级随机误差,把晶振秒脉冲的长期稳定度锁定到gps信号的稳定度上;在gps信号失效时给出了可行措施,能够保证在任何情况下产生一个稳定、高精度秒脉冲信号,误差在1 s内。 |
- Similar Words：
- "seismic re o e" English translation, "seismic reciprocity" English translation, "seismic reconnaissance" English translation, "seismic record" English translation, "seismic record viewer" English translation, "seismic recording instrument" English translation, "seismic recording streamer" English translation, "seismic recording system" English translation, "seismic reference" English translation, "seismic reference datum" English translation
|
|
|
