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Bently Nevada Seismoprobe速度传感器系统测量轴承箱、机壳或结构的(相对于自由空间)振动|该两线系统由传感器、电缆和可选的速度-位移转换器组成。
Seismoprobe系列速度传感器是两线结构，采用动线圈技术，提供直接正比于传感器振动速度的电压输出。与固体速度传感器(本质上是加速度计中嵌入积分电子电路)不同，动线圈传感器对冲击或脉冲励磁的敏感性降低，是更好的应用选择。此外,由于它们不要求外部电源，所以使便携式测量应用更加方便。


Seismoprobe速度传感器共有三种:
9200: 9200是两线传感器，适用于连续监测或与测试或故障诊断仪表-起应用于周期性测量中。当与整体电缆一同订购时，9200具有的抗腐蚀性,不需要额外保护。
74712: 74712是9200的高温应用版本。
47633: 47633的安装方式较少，只提供整体铠装电缆。它的设计采用可替换
的夹头，当动线圈磨损后易于替换。它用于速度传感器安装方式有限且只需提供简单性能的一般用途机械。
多种联接电缆可以将9200和74712传感器与其它仪表或速度-位移转换器联接
起来。这些电缆以300毫米(1英尺递增，有或没有不锈钢铠装。
有两种类型的速度-位移转换器(VDC)可供选择:
9513:与9200和74712传感器-起使用。
46687:与47633传感器一起使用。

速度传感器系统
本特利内华达Seismoprobe.速度传感器系统测量轴承箱、机壳或结构的（相对于自由空间）振动。该两线系统由传感器、电缆和可选的速度-位移转换器组成。
Seismoprobe.系列速度传感器是两线结构，采用动线圈技术提供直接正比于传感器振动速度的电压输出。与固体速度传感器（本质上是加速度计中嵌入积分电子电路）不同，动线圈传感器对冲击或脉冲励磁的敏感性降低，是更好的应用选择。此外，由于它们不要求外部电源，所以使便携式测量应用更加方便。




压电式速度传感器
Velomitor.压电式速度传感器用于测量轴承箱体、壳体或结构的（相对于自由表面）振动。与带有运动部件的速度传感器，如本特利内华达Seismoprobe.系列速度传感器不同，Velomitor.传感器采用晶体形式，在压电式加速度计的基础上进行专业化设计，嵌入积分电路。因其采用晶体电路，没有移动部件，所以不会产生磨损和退化，并且可以垂直、水平或以任何角度安装。


加速度传感器
这些传感器应用于要求对壳体加速度进行测量的关键机械，如齿轮啮合监测。330400 的设计满足美国石油协会标准670 对加速度计的要求。它提供50 g峰值的振幅和100 mV/g 的灵敏度。330425 与330400 基本相同，除了它的振幅范围更大(75 g 峰值)，灵敏度为25 mV/g。


如果箱体测量是为了对机器进行整体保护，应考虑每种测量的有用性。大多数常见的机器故障(不平衡、不对中等)在转子上产生，并引起转子振动的增加(至少发生改变)。为了使只通过任何箱体测量就可以对机器实现有效的整体保护，必须要有足够大的转子振动被如实地传递到轴承箱体或机壳上，或在更特殊的情况下，传递到传感器的安装位置。
此外，对传感器的物理安装要多加注意。不正确的安装会引起传感性能下降,并且/或导致产生不代表真实机器振动的信号。将输出积分成速度将使这些错误更加严重。所以在积分成速度时应格外注意。对于高质量的速度测量，应采用
根据要求,Bently Nevada可以提供工程化服务；帮助用户对有疑问的机器选择适当的箱体测量方式，并且/或提供安装协助。

本特利两线速度传感器9200-06-05-10-00，美国BENTLY速度传感器，本特利传感器；

本特利Bently速度传感器
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本特利BENTLY速度-位移转换器
9513-02
46687-01
轧钢机，是实现金属轧制过程的机械设备。泛指完成轧材生产全过程的装备﹐包括有主要设备﹑辅助设备﹑起重运输设备和附属设备等。但一般所说的轧机往往仅指主要设备。


支承轧辊并保持轧辊在机架中的固定位置。轧辊轴承工作负荷重而变化大﹐因此要求轴承摩擦系数小﹐具有足够的强度和刚度﹐而且要便于更换轧辊。不同的轧机选用不同类型的轧辊轴承。滚动轴承的刚性大﹐摩擦系数较小﹐但承压能力较小﹐且外形尺寸较大﹐多用于板带轧机工作辊。滑动轴承有半干摩擦与液体摩擦两种。半干摩擦轧辊轴承主要是胶木﹑铜瓦﹑尼龙瓦轴承﹐比较便宜﹐多用于型材轧机和开坯机。液体摩擦轴承有动压﹑静压和静 - 动压三种。优点是摩擦系数比较小﹐承压能力较大﹐使用工作速度高﹐刚性好﹐缺点是油膜厚度随速度而变化。液体摩擦轴承多用于板带轧机支承辊和其它高速轧机。




电力设备主要包括发电设备和供电设备两大类，发电设备主要是电站锅炉、蒸汽轮机、燃气轮机、水轮机、发电机、变压器等等，供电设备主要是各种电压等级的输电线路、互感器、接触器等等。


电力系统中的电力设备很多，根据他们在运行中所起的作用不同，通常将他们分为电气一次设备和电气二次设备。
电力一次设备
直接参与生产、变换、传输、分配和消耗电能的设备称为电气一次设备，主要有：
进行电能生产和变换的设备，如发电机、电动机、变压器等；
接通、断开电路的开关电器，如断路器、隔离开关、接触器、熔断器等
载流导体及气体绝缘设备。如母线、电力电缆、绝缘子、穿墙套管等
限制过电流或过电压的设备，如限流电抗器、避雷器等
互感器类设备：将一次回路中的高电压和大电流降低，供测量仪表和继电保护装置使用，如电压互感器、电流互感器
电力二次设备
为了保护保证电气一次设备的正常运行，对其运行状态进行测量、监视、控制和调节等的设备称为电气二次设备。主要有各种测量表计，各种继电保护及自动装置，直流电源设备等。


所谓电站锅炉，通俗来讲就是电厂用来发电的锅炉。一般容量较大，现在主力机组为600MW，目前较的是超超临界锅炉，容量可达1000MW。 电站锅炉主要有两类：煤粉炉和循环流化床锅炉。这两类锅炉是目前电站所用的主要类型。流化床炉和煤粉炉的大区别是燃料的状态不同，即液体和煤块粉状。


电站锅炉又称“电厂锅炉”，是指发电厂中向汽轮机提供规定数量和质量蒸汽的中大型锅炉。火力发电厂的主要热力设备之一。常与一定容量的汽轮发电机组相配套，主要用于发电，但在某些特殊场合下也可兼作对外供热之用。一般其蒸发量较大，蒸汽参数(汽温和汽压)很高，需要有一整套的辅助设备，多需配置室燃炉膛，采用强制通风方式，可燃用多种燃料(煤粉、原油或重油、高炉煤气或炼焦炉煤气)，结构较复杂，效率较高，多数可达85～93%左右，对运行管理水平、机械化程度以及自动控制技术则有相当高的要求。


水轮机是把水流的能量转换为旋转机械能的动力机械，它属于流体机械中的透平机械。
水轮机按工作原理可分为冲击式水轮机和反击式水轮机两大类。冲击式水轮机的转轮受到水流的冲击而旋转，工作过程中水流的压力不变，主要是动能的转换；反击式水轮机的转轮在水中受到水流的反作用力而旋转，工作过程中水流的压力能和动能均有改变，但主要是压力能的转换。
冲击式水轮机按水流的流向可分为切击式(又称水斗式)和斜击式两类。斜击式水轮机的结构与水斗式水轮机基本相同，只是射流方向有一个倾角，只用于小型机组。


发电机是指将其他形式的能源转换成电能的机械设备，它由水轮机、汽轮机、柴油机或其他动力机械驱动，将水流，气流，燃料燃烧或原子核裂变产生的能量转化为机械能传给发电机，再由发电机转换为电能。


发电机在工农业生产、科技及日常生活中有广泛的用途。发电机的形式很多，但其工作原理都基于电磁感应定律和电磁力定律。因此，其构造的一般原则是：用适当的导磁和导电材料构成互相进行电磁感应的磁路和电路，以产生电磁功率，达到能量转换的目的。


发电机的分类包括：
发电机分：直流发电机和交流发电机；
交流发电机分：同步发电机和异步发电机（很少采用）；
交流发电机还可分为单相发电机与三相发电机。
发电机的种类有很多种。从原理上分为同步发电机、异步发电机、单相发电机、三相发电机。从产生方式上分为汽轮发电机、水轮发电机、柴油发电机、汽油发电机等。从能源上分为火力发电机、水力发电机等。


发电机通常由定子、转子、端盖及轴承等部件构成。
定子由定子铁芯、线包绕组、机座以及固定这些部分的其他结构件组成。
转子由转子铁芯（或磁极、磁扼）绕组、护环、中心环、滑环、风扇及转轴等部件组成。
由轴承及端盖将发电机的定子，转子连接组装起来，使转子能在定子中旋转，做切割磁力线的运动，从而产生感应电势，通过接线端子引出，接在回路中，便产生了电流。


柴油发电机
柴油机驱动发电机运转，将柴油的能量转化为电能。
在柴油机汽缸内，经过空气滤清器过滤后的洁净空气与喷油嘴喷射出的高压雾化柴油 充分混合，在活塞上行的挤压下，体积缩小，温度迅速升高，达到柴油的燃点。柴油被点燃，混合气体剧烈燃烧，体积迅速膨胀，推动活塞下行，称为‘作功’。


汽油发电机
汽油机驱动发电机运转，将汽油的能量转化为电能。
在汽油机汽缸内，混合气体剧烈燃烧，体积迅速膨胀，推动活塞下行作功。
无论是柴油发电机还是汽油发电机，都是各汽缸按一定顺序依次作功，作用在活塞上的推力经过连杆变成了推动曲轴转动的力量，从而带动曲轴旋转。将无刷同步交流发电机与动力机曲轴同轴安装，就可以利用动力机的旋转带动发电机的转子，利用‘电磁感应’原理，发电机就会输出感应电动势，经闭合的负载回路就能产生电流。