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公开(公告)号：US5965819A
公开(公告)日：1999-10-12
申请号：US110807
申请日：1998-07-06
摘要： A portable data collector and analyzer having multiple paths for performing multiple processing functions on a single sensor signal in parallel. The portable data collector has a sensor which creates a sensor signal that represents a measured property of an operating machine. The sensor signal is simultaneously sent to at least two processor channels that are connected in parallel. Each processor is capable of performing different types of signal analysis with varying signal conditioning and sampling rate requirements on the sensor signal independent of the other processor(s). An operator of the parallel processing data collector and analyzer places the single sensor on the area desired to be tested and instructs the parallel processing data collector to begin taking measurements. The parallel processor channels work independently of each other to obtain results corresponding to a number of different tests in approximately the time normally required to perform a single test.
摘要翻译： 一种便携式数据采集器和分析器，具有用于在单个传感器信号上并行执行多个处理功能的多条路径。 便携式数据采集器具有传感器，其产生表示操作机器的测量属性的传感器信号。 传感器信号同时发送到并联连接的至少两个处理器通道。 每个处理器能够执行不同类型的信号分析，具有独立于其他处理器的传感器信号的变化的信号调节和采样率要求。 并行处理数据采集器和分析仪的操作员将单个传感器放置在所需要测试的区域上，并指示并行处理数据采集器开始进行测量。 并行处理器通道彼此独立工作，以在大约通常执行单次测试所需的时间内获得对应于多个不同测试的结果。
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公开(公告)号：US06598479B1
公开(公告)日：2003-07-29
申请号：US09988926
申请日：2001-11-19
IPC分类号： G01H1106
CPC分类号： G01H11/06
摘要： An integral magnet vibration sensor apparatus optimizes sensor response in a non-permanently attachable package. In a preferred embodiment of the invention, the apparatus includes a housing having a magnet, a vibration sensor, and a conditioning circuit disposed within the housing. The magnet enables the apparatus to be magnetically attached to a machine. The vibration sensor senses machine vibration when the apparatus is attached to the machine, and the conditioning circuit optimizes the frequency response of the vibration sensor in a preferred embodiment by reducing the gain of the sensor output at resonance.
摘要翻译： 一体式磁体振动传感器装置优化了非永久性可附接封装中的传感器响应。 在本发明的优选实施例中，该装置包括具有磁体，振动传感器和设置在壳体内的调节电路的壳体。 该磁体使得装置能够磁性地附接到机器上。 振动传感器在装置附接到机器时感测机器振动，并且调节电路在优选实施例中通过降低传感器输出在共振时的增益来优化振动传感器的频率响应。
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公开(公告)号：US5943634A
公开(公告)日：1999-08-24
申请号：US645907
申请日：1996-05-14
IPC分类号： B23Q17/12 , G01H1/00 , G05B19/406 , G05B23/02 , G01M7/02
CPC分类号： G05B23/0221 , B23Q17/12 , G01H1/00 , G05B19/406 , G05B23/0264 , G05B2219/37435 , G05B2219/37507
摘要： An efficient vibration data collection, analysis, and storage system automates the analysis of time waveform data and optimizes use of available memory and minimizes data collection time by parameterizing the time domain vibration waveform produced by a vibration transducer attached to a machine. Various parameters are calculated from the time domain waveform and compared to predetermined thresholds or other criteria representative of possible anomalous conditions within the monitored machine. When one or more anomaly criteria are met, an alarm is generated and the system automatically collects, or stores vibration data, which may include both the time waveform and frequency spectrum. Alternatively, the system may be programmed to conduct further analysis of the vibration data during an alarm condition prior to data storage. Preferably, time waveform data is stored only for machines that are in alarm, and the calculated parameters are stored for each machine regardless of the machine's condition. Stored data may be uploaded to a base computer for further analysis and long-term storage. The waveform parameters serve to provide metrics of behaviors in the waveform that are particularly useful to both the data collection technician and the vibration analyst.
摘要翻译： 有效的振动数据收集，分析和存储系统可自动分析时间波形数据，并优化可用存储器的使用，并通过参数设置连接到机器的振动传感器产生的时域振动波形，最大限度地减少数据采集时间。 根据时域波形计算各种参数，并将其与预定阈值或表示监测机器内可能出现的异常情况的其他标准进行比较。 当满足一个或多个异常标准时，产生报警，并且系统自动收集或存储可能包括时间波形和频谱两者的振动数据。 或者，可以将系统编程为在数据存储之前的报警状态期间进一步分析振动数据。 优选地，时间波形数据仅存储在处于报警状态的机器中，并且不管机器的状况如何，为每个机器存储所计算的参数。 存储的数据可以上传到基本计算机进行进一步分析和长期存储。 波形参数用于提供对数据采集技术人员和振动分析仪特别有用的波形行为度量。
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公开(公告)号：US06892581B2
公开(公告)日：2005-05-17
申请号：US10461984
申请日：2003-06-16
IPC分类号： G01H11/06
CPC分类号： G01H11/06
摘要： A multi-axis vibration sensor with integral magnet optimizes sensor response in a non-permanently attachable package. In a preferred embodiment of the invention, the apparatus includes a housing having a magnet, a multi-axis vibration sensor for sensing vibration along multiple machine axes, and conditioning circuitry disposed within the housing. The magnet enables the apparatus to be placed in sensory contact with the machine. The vibration sensor senses machine vibration along multiple machine axes when the apparatus is in sensory contact with the machine, and the conditioning circuitry optimizes the frequency response of the vibration sensor by reducing the gain of the sensor output at resonance. The vibration sensor may be mounted directly to existing machine structure, such as the machine's outer casing. Two parallel feet facilitate stable mounting of the sensor curved surface. A keyed mounting pad may be employed to facilitate proper orientation of the sensor.
摘要翻译： 具有集成磁体的多轴振动传感器优化了非永久性可附接封装中的传感器响应。 在本发明的优选实施例中，该装置包括具有磁体的壳体，用于感测沿着多个机器轴的振动的多轴振动传感器，以及设置在壳体内的调节电路。 该磁体使设备能够与机器感觉接触。 振动传感器在设备与机器感觉接触时感应机器的振动，并且调节电路通过减小传感器输出在共振时的增益来优化振动传感器的频率响应。 振动传感器可以直接安装到现有的机器结构上，例如机器的外壳。 两个平行的脚有助于传感器曲面的稳定安装。 可以使用带键的安装垫来促进传感器的正确定向。
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公开(公告)号：US06220098B1
公开(公告)日：2001-04-24
申请号：US09363709
申请日：1999-07-29
IPC分类号： G01H1700
CPC分类号： G01H1/00 , G01H3/00 , G01N2291/02863 , G01N2291/02881
摘要： An ultrasonic monitoring apparatus is provided for use by an operator in detecting ultrasonic vibrations and sound waves. The ultrasonic monitoring apparatus consists of a hand held device with a sensor socket that allows a variety of different types of sensors to be interchangeably installed in the hand held device. These sensors include both contact and airborne ultrasonic sensors as well as a combination temperature and ultrasonic sensor that allows the operator to simultaneously monitor the surface temperature of an object and the ultrasonic vibrations produced by the object. Identification information corresponding to the type of sensor is encoded on the individual sensors. The identification information is read by an identification circuit located in the hand held device. This identification information allows the hand held device to configure itself to operate with the type of sensor installed in the socket.
摘要翻译： 提供超声波监视装置，用于操作者用于检测超声波振动和声波。 超声波监测装置包括具有传感器插座的手持装置，其允许各种不同类型的传感器可互换地安装在手持装置中。 这些传感器包括接触式和机载式超声波传感器以及组合温度和超声波传感器，其允许操作者同时监测物体的表面温度和由物体产生的超声波振动。 对应于传感器类型的识别信息被编码在各个传感器上。 识别信息由位于手持装置中的识别电路读取。 该识别信息允许手持设备配置为使用安装在插座中的传感器类型进行操作。
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公开(公告)号：US06247353B1
公开(公告)日：2001-06-19
申请号：US09458293
申请日：1999-12-10
申请人： Rexford A. Battenberg , Terry G. Carpenter , William S. Johnson , Kenneth R. Piety , Kenneth C. Puterbaugh , James C. Robinson , James B. Vanvoorhis
发明人： Rexford A. Battenberg , Terry G. Carpenter , William S. Johnson , Kenneth R. Piety , Kenneth C. Puterbaugh , James C. Robinson , James B. Vanvoorhis
IPC分类号： G01M324
CPC分类号： G01N29/36 , G01H1/003 , G01H3/00 , G01M3/24 , G01M3/243 , G01N29/14 , G01N29/44 , G01N29/4454
摘要： A portable digital ultrasonic monitoring system and method for use by an operator in detecting the ultrasonic waves and temperature variations produced by sources such as leaks in pipes, arcing, electrical corona and machinery defects is provided. The digital ultrasonic monitoring system includes a microprocessor based system in a hand held elongate housing that digitally analyzes and stores information received from its sensors. The digital ultrasonic monitoring system provides a referenced decibel output reading of the signal strength of the received ultrasonic signals. In addition, a heterodyned type audio signal that is related to the sensed ultrasonic signals is provided to the operator through a pair of headphones. The portable device has user input keys that allow the operator to select from a variety of different operating modes. A display displays a variety of different readings depending upon the operating mode of the device.
摘要翻译： 提供了一种便携式数字超声波监测系统和方法，用于操作者检测超声波和由诸如管道中的泄漏，电弧，电晕和机械缺陷等源产生的温度变化。 数字超声波监测系统包括一个手持式细长壳体中的基于微处理器的系统，用于对从其传感器接收的信息进行数字分析和存储。 数字超声波监测系统提供接收到的超声波信号的信号强度的参考分贝输出读数。 此外，通过一对耳机向操作者提供与感测到的超声波信号相关的外差型音频信号。 便携式设备具有用户输入键，其允许操作者从各种不同的操作模式中进行选择。 显示器根据设备的操作模式显示各种不同的读数。
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公开(公告)号：US06234021B1
公开(公告)日：2001-05-22
申请号：US09243324
申请日：1999-02-02
IPC分类号： G01H1700
CPC分类号： G01N29/42 , G01H1/00 , G01H3/00 , G01H3/10 , G01N29/14 , G01N29/348 , G01N2291/015 , G01N2291/02872 , G01N2291/2698 , G01V1/001 , G10K11/24
摘要： A device detects an emission source of a vibration signal against a background of noise, where the vibration signal is produced by a mechanical system and has one or more frequency components. A sensor senses the vibration signal and produces a sensor signal corresponding to the vibration signal. The sensor has a mechanical frequency selection structure for mechanically resonating at desired frequencies and for mechanically attenuating a frequency component of the vibration signal having a frequency outside the desired frequencies. The mechanical frequency selection structure thus produces a mechanically-tuned sensor signal. Electrical frequency selection filters electrically attenuate a frequency component of the mechanically-tuned sensor signal having a frequency outside the desired frequencies. The electrical frequency selection filters thus produce an electrically-tuned sensor signal. The device has at least one amplifier with gain for producing an amplified signal corresponding to the electrically-tuned sensor signal. An amplitude characteristic determination circuit determines an amplitude characteristic corresponding to the vibration signal's amplitude. The amplitude characteristic determination circuit also generates an amplitude indication based on the amplitude characteristic. The amplitude indication and adjusts the gain of the amplifier based at least in part on the amplitude indication.
摘要翻译： 一种装置根据噪声背景检测振动信号的发射源，其中振动信号由机械系统产生并具有一个或多个频率分量。 传感器感测振动信号并产生对应于振动信号的传感器信号。 传感器具有机械频率选择结构，用于以期望的频率机械谐振，并机械地衰减具有期望频率之外的频率的振动信号的频率分量。 因此，机械频率选择结构产生机械调谐的传感器信号。 电频率选择滤波器对具有在期望频率之外的频率的机械调谐的传感器信号的频率分量进行电衰减。 因此，电频率选择滤波器产生电调谐的传感器信号。 该装置具有至少一个具有增益的放大器，用于产生对应于电调谐传感器信号的放大信号。 振幅特性确定电路确定对应于振动信号振幅的振幅特性。 幅度特性确定电路还基于振幅特性产生振幅指示。 振幅指示并且至少部分地基于振幅指示来调节放大器的增益。
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公开(公告)号：US20090015196A1
公开(公告)日：2009-01-15
申请号：US12121735
申请日：2008-05-15
申请人： Nelson L. Baxter , Kenneth R. Piety
发明人： Nelson L. Baxter , Kenneth R. Piety
IPC分类号： H02J7/02
摘要： A power supply comprises at least one transformer that is placed around an active power line and is connected through at least one power conditioning system to provide a conditioned power source for at least one electronic device. Power is generated by scavenging power from the power being supplied on the power line. An asset-monitoring apparatus comprises a sensor package in communication with a monitoring system and a power supply that generates power for the sensor package, the power supply including a transformer placed close to the power line powering the asset being monitored and a power conditioning system that conditions the power supply for use by the sensor package. An optional energy storage device may receive power from the power conditioning system and provide primary or backup power for the sensor package or other electronic device.
摘要翻译： 电源包括至少一个放置在有源电力线周围的变压器，并且通过至少一个功率调节系统连接以提供用于至少一个电子设备的经调节的电源。 通过从供电线路上供电的电力清除电力而产生电力。 一种资产监测装置包括与监视系统通信的传感器封装和为传感器封装产生电力的电源，该电源包括靠近为被监视的资产供电的电力线的变压器，以及功率调节系统， 调节传感器封装使用的电源。 可选的能量存储设备可以从功率调节系统接收电力，并为传感器封装或其他电子设备提供主电源或备用电源。
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公开(公告)号：US5739698A
公开(公告)日：1998-04-14
申请号：US667141
申请日：1996-06-20
CPC分类号： G01R31/343 , G01R23/20 , G01R13/02
摘要： A method for nonintrusive detection of anomalies in electric machines. A flux coil is positioned external to the motor to obtain magnetic leakage flux measurements, which are transformed to the frequency domain to obtain a flux spectrum. Asymmetry-producing faults, such as turn-to-turn stator winding shorts, produce changes in the amplitudes of individual frequencies and groups of frequencies within a defined slot pass family of frequencies of the flux spectrum. The measured amplitudes of the slot pass family of frequencies are compared to reference and trend data. Significant changes in the slot pass frequency amplitudes indicate the presence of a machine fault or other anomalous condition. Significant changes are determined by comparing individual amplitudes and groups of amplitudes of the slot pass family of frequencies to an absolute or delta threshold value. Alternatively, measured amplitudes of the slot pass frequencies can be statistically compared to trend data previously acquired for the motor to determine when a significant change in the slot pass amplitudes has occurred.
摘要翻译： 一种非侵入式检测电机异常的方法。 磁通线圈位于电机的外部，以获得磁泄漏磁通量测量值，并将其转换到频域以获得通量谱。 产生不对称的故障，例如匝间定子绕组短路，会产生频率范围内各个频率和频率组幅度的变化。 将测量的频带频率族的幅度与参考和趋势数据进行比较。 缝隙通过频率振幅的显着变化表明存在机器故障或其他异常情况。 通过将时隙通频谱系列的幅度和绝对值或增量阈值的幅度组合来确定显着变化。 或者，可以将槽通过频率的测量幅度与先前为电动机获取的趋势数据进行统计学比较，以确定何时发生槽通过振幅的显着变化。
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公开(公告)号：US5394739A
公开(公告)日：1995-03-07
申请号：US254060
申请日：1994-06-06
CPC分类号： G01N11/14
摘要： A viscosity tester includes a free standing magnetic object disposed in fluid in a stationary receptacle. A magnetic force drives the object in an orbit and the magnetic force, the speed of the object and the lag angle between the magnetic field and the object are either measured or controlled and, based on at least one of these three parameters, the viscosity of the fluid is determined. In one embodiment, a magnetic ball is driven by four electromagnets, with proximity sensors detecting the presence of the ball and controlling the electromagnets. In another embodiment, a free standing magnet is driven in an orbital pattern by a rotating field that is coaxial with the orbital pattern and is produced by a rotating magnet or a stator.
摘要翻译： 粘度测试仪包括在静止容器中设置成流体的自立式磁性物体。 磁力在轨道上驱动物体，并且测量或控制磁力，物体的速度和磁场和物体之间的滞后角，并且基于这三个参数中的至少一个，粘度 确定流体。 在一个实施例中，磁珠由四个电磁铁驱动，接近传感器检测球的存在并控制电磁体。 在另一个实施例中，通过与轨道图案同轴的旋转场以轨道图案驱动自立式磁铁并由旋转磁体或定子产生。
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