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point amplifier
相关语句
  点放大器
     It is applied that optic variable density disk which controlled by microcomputer and floating point amplifier technology in this device.
     此装置采用单片机控制光学变密度盘 ,浮点放大器技术。
短句来源
     An analysis of the instantaneous floating point amplifier in DFS-V seismic recording system,
     DFS—Ⅴ型数字地震仪瞬时浮点放大器的分析与探讨
短句来源
     Instantaneous floating point amplifier is a key unit in digital seismic system.
     瞬时浮点放大器是数字地震仪中的关键部件。
短句来源
     The application of the 7-bands instantaneous floating point amplifier in the oil exploration equipment and the multi-channel data acquisition system,is used as enlarging the collected pulse voltage in turn.
     七阶型瞬时浮点放大器,应用在石油勘探仪器与多通道数据采集系统中,用于对采集到的脉冲电压依次放大。
短句来源
  “point amplifier”译为未确定词的双语例句
     24 bit data acquisition is needed to process high dynamic range signal, Instantaneous Float Point Amplifier (IFPA) technology is introduced in this paper, And 24 bit data acquisition is achieved based on this technology , The design of high speed & high accuracy data acquisition system based on DSP is gived.
     大动态范围信号的处理需要24位数据采集,本文介绍了瞬时浮点放大技术,并在该技术的基础上实现24位数据采集,提出了基于DSP的高速高精度数据采集处理系统的设计。
短句来源
     The Research of the Multi-channel Seismic Data Acquisition System Based on Floating Point Amplifier
     基于浮点放大技术的多通道地震数据采集系统的研究
短句来源
     The dynamic range of the system is above 138db,the sampling rate is up to 75ksps. It better resolved the data acquisition problem for dynamic adjustment gyroscope. Key words Data acquisition Dynamically regulating gyroscope Dynamic range Instantaneous floating point amplifier
     该系统动态范围优于 138dB ,采样频率可达 75ksps,较好地解决了动调陀螺仪的信号采集问题。
短句来源
     This paper is deals with the relationship between shellow defect of pile and its first peak amplitude of low strain dynamic test signal, and some ideas has been given for the improvement of defect induced by using automatic gain control and floating point amplifier techniques.
     本文通过对基桩桩身浅部缺陷与低应变动测应力波首波振幅特征关系进行分析 ,就目前检测系统中使用的自动增益控制 (Agc)和浮点放大技术导致的缺陷漏判问题提出了改进意见。
短句来源
  相似匹配句对
     The Power Amplifier of Adjustable Working-Point
     工作点可变的功率放大器
短句来源
     Quantitative Analysis with Quiescent Point Stabilization of Voltage Amplifier
     关于电压放大电路静态工作点稳定性的定量分析
短句来源
     Access Point
     无线接入点
短句来源
     The boiling point (b. p.)
     脂肪醇沸点(b.p.)
短句来源
     Linearization Technique of the Amplifier
     放大器的线性化技术
短句来源
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The instantaneous floating-point amplifier in seismic data acqui- sition system improves the accuracy of seismic data recording,but it requires the sample holder to have higher response speed and lower hold voltage.Without the two prerequisites of the sample holder,the digitizing accuracy of seismic signals will be seriously deteriorated, particularly in a high sampling rate system. The relationship between the function of the instantaneous floa- ting-point amplifer and the property of the sample...

The instantaneous floating-point amplifier in seismic data acqui- sition system improves the accuracy of seismic data recording,but it requires the sample holder to have higher response speed and lower hold voltage.Without the two prerequisites of the sample holder,the digitizing accuracy of seismic signals will be seriously deteriorated, particularly in a high sampling rate system. The relationship between the function of the instantaneous floa- ting-point amplifer and the property of the sample holder is studied according to the circuit of the sample holder and its property.The improvement of the response speed will be constrained by the circuit configuration;therefore,a compromise is needed that the variation ratio of the sample is introduced into controlling the gain of the ins- tantaneous floating-point amplifier so that the variation ratio of the signal input into the sample holder is limited to be lower than the response speed of the sample holder.Another approach to the prob- lem is to install the sample holder ahead of the instantaneous floating -point amplifier.But the error hold voltage will be the key factor in this configuration.

在地震数据采集系统中,设置了瞬时浮点放大器,用以提高地震记录的精度。然而,这给采样保持器的特性指标提出了更高的要求:一是要有更高的跟踪速度,二是要有更低的保持误差电压。否则将严重恶化地震信号的量化精度。尤其在高速率采样系统中,这个问题更为突出。本文从采样保持器的基本电路结构和特性入手,研究了瞬时浮点放大器的效应对采样保持器这些性能指标的要求。如果要提高采样保持器的跟踪速度,将会受到电路本身因素的制约。因此,可采取一个折衷方案让子样的变化率参加控制瞬时浮点放大器的增益,用以限制进入采样保持器的信号变化率,使其低于采样保持器的跟踪速度。解决这一问题的另一方案是把采样保持器设置在浮点放大器的前面。但在这种设计中,采样保持器保持误差电压是设计中最为关键的指标。

Anew twice-comparison instantaneous floating-point amplifier with sign bit is recommended in this paper. This amplifier only consists of four amplification stages, the first stage being for 48dB amplification, and the second, third and fourth for 12dB respectively. This amplifier first determines whether the output potential of the first amplification stage is above 8V, then simultaneously judges if the potential of each input of the second, third and fourth stage is above 2V. The judgments...

Anew twice-comparison instantaneous floating-point amplifier with sign bit is recommended in this paper. This amplifier only consists of four amplification stages, the first stage being for 48dB amplification, and the second, third and fourth for 12dB respectively. This amplifier first determines whether the output potential of the first amplification stage is above 8V, then simultaneously judges if the potential of each input of the second, third and fourth stage is above 2V. The judgments decide which stage should be switched on or off. Only two times of judgment (comparison) are needed altogether. Its time for amplifying one signal sample is only half the time of three time-gain-regulation amplifier.

本文提出了一种新型的带有符号位的二次比较型瞬时浮点放大器,它是将通常用的七阶放大改为四阶放大。第一阶为48dB放大级,第二、三、四阶为12dB放大级。其基本原理是:第二、三、四阶入口处电位是否达到2V的判别要同时进行,判别之后开关状态才发生改变;加上第一阶48dB放大级输出是否大于8V的判别,共进行了两次比较。从而使放大一个子样的时间仅为三次增益调整型时间的一半。

The design basis and approaches of the logical circuit in the instant float-point amplifier of the widely-used SN338 seismic recorder are discussed in detail, This leads to two schemes suggested to simplify the circuit.

本文就法国SN338数字地震仪瞬时浮点增益放大器中逻辑电路的设计依据、设计方法进行了较为详尽的讨论,并在此基础上提出了两条简化电路的设计方案。

 
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