信号装置

The design of the device using NC Lathe CA6240 control, part of the main transmission system using AC spindle motor and graded by the pulley driven spindle gearbox, through the inverter and gearbox to achieve sub; Feed System used by stepper motor driven ball screw slowdown after campaign vertical feed system through a gear after the ball screw drive, in the horizontal feed system through two gear-driven ball screw; Tool to automatically transfer tool carrier (4-position), thus achieving automatic tool change; by MCS-51 series 8051 data to be dealt with.

本设计利用数控装置对CA6240普通车床进行控制，主传动系统部分采用交流调频主轴电动机经带轮及分级齿轮变速箱驱动主轴，通过变频器和齿轮变速箱实现分段无级变速；进给系统采用步进电机通过减速后驱动滚珠丝杠运动，在纵向进给系统中通过一级齿轮减速后驱动滚珠丝杠，在横向进给系统中通过二级齿轮减速驱动滚珠丝杠；刀架改为自动转位刀架从而实现自动换刀；通过MCS-51系列8051单片机对数据进行计算处理，由I/O接口输出步进脉冲信号控制进给速度和行程；为了保持切削螺纹的功能，要在主轴外端或其它适当部位装上脉冲发生器；将车床的手动尾座改造成为可控电动尾座。

Dinger, who was one of the pioneers of quantum mechanics, imagined putting a cat, a flask of Prussic acid, a radioactive atom, a Geiger counter, an electric relay and a hammer in a sealed box.

"薛定谔的猫"是最著名的未证实实验之一。1935年，量子力学的先驱之一，艾尔文·薛定谔提出了一个妙想：把一只猫、一个装有氢氰酸的烧瓶、一枚放射性原子、一个盖格计数仪、一个继电器和一把锤子一起放置到一个密封的盒子中组成一个装置，如果放射性原子衰变，盖格计数仪将探测到放射性，之后向继电器发送信号使其断开，从而释放之前被固定的锤子，锤子会将砸碎烧瓶并释放其中的氢氰酸，盒子里的猫于是被毒死。

In 1935 Erwin Schr dinger, who was one of the pioneers of quantum mechanics, imagined putting a cat, a flask of Prussic acid, a radioactive atom, a Geiger counter, an electric relay and a hammer in a sealed box.

"薛定谔的猫"是最著名的未证实实验之一。1935年，量子力学的先驱之一，艾尔文·薛定谔提出了一个妙想：把一只猫、一个装有氢氰酸的烧瓶、一枚放射性原子、一个盖格计数仪、一个继电器和一把锤子一起放置到一个密封的盒子中组成一个装置，如果放射性原子衰变，盖格计数仪将探测到放射性，之后向继电器发送信号使其断开，从而释放之前被固定的锤子，锤子会将砸碎烧瓶并释放其中的氢氰酸，盒子里的猫于是被毒死。

The Signal Generator, which is the main body of this paper, is one of important parts in this item.

本文所研究的信号发生装置即是本课题的重要内容之一。

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The pipeline magnetic leakage detecting device with Hall probe mounted on it is in fact a kind of device designed to collect defective magnetic flux leakage signals. The data acquired will be ultimately fed back to computer for further analysis and processing.

安装霍尔元件探头的管道漏磁检测器本身是缺陷漏磁信号的采集装置，采集到的数据最终要送到计算机上进行分析和处理。

The Hall probe measurement circuit is mainly composed by the Hall probe, the non-idiostatic offset circuit, the signal amplification circuit, the automatic range conversion circuit and the A/D transducer circuit.

磁场测量装置主要由霍尔探头、不等位电势补偿电路、信号放大电路、量程自动切换电路、A/D转换器组成。

Assisting with the main requirement to nanoindentation test, the mechanism of precision loading device was designed and analyzed, and the scheme to realize nanoindentation test of diamond indenter under the help of hybrid process of piezoelectric stack and flexure hinges was established. The force signal of nanoindentation was measured via flexure hinge based on Hooke's law.

结合纳米压痕测试的基本要求，对精密加载装置进行了结构设计分析，建立了以压电叠堆推动柔性铰链推进单晶金刚石工具头实现压痕测试的方案，依据胡克定律利用柔性铰链敏感单元实现对压入力信号的检测。

1It introduces a hydraulic motor monitoring system in the computer hardware and software resources, covering both hardware and software: hardware focused on the composition of the hydraulic system, data acquisition hardware structure, signal conditioning equipment, software FIX software introduced in the main characteristics and functions of data collection on the board of the I / O drive configurations and address of the distribution, real-time database design.

1介绍了液压马达测控系统中计算机的软硬件资源，其内容涉及硬件和软件两个方面：硬件方面着重研究了液压系统的组成、数据采集的硬件结构、信号调理装置；软件方面介绍了FIX软件的主要特点及功能，研究了数据采集板卡的I/O驱动配置及地址分配，实时数据库设计。

Injecting variable-frequency signal method has many advantages such as no need to adjust inductance of arc-suppression coil, unchanging running status of power utility, secondary measurement, etc, which is a widely used method in capacitive current detection.

注入变频信号法具有不需要启动电感调节装置，不改变系统运行状态，二次回路测量等诸多优点，是目前应用较多的一种检测方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。