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    • 1. 发明授权
    • Method and device for checking the installation air gap of an active sensor
    • 用于检查有源传感器的安装气隙的方法和装置
    • US06504360B1
    • 2003-01-07
    • US09673330
    • 2001-04-20
    • Peter LohbergKlaus Hildebrandt
    • Peter LohbergKlaus Hildebrandt
    • G01P2102
    • G01P21/02G01B7/14G01P1/00
    • The present invention relates to a method for checking or determining the installation air slot between an active sensor and an encoder, wherein the maximum size of the air slot (maximum air slot) which still ensures trouble-free operation of the sensor depends on the level of the supply voltage of the sensor at least within a range of said supply voltage, and which is more particularly characterized by the following method steps: reducing the supply voltage of the sensor to at least one value by which the maximum air slot is each time decreased by a desired test measure, and comparing the at least one test measure with a desired difference between the maximum air slot and the existing air slot by sensing a variation of the sensor output signal by the reduction of the supply voltage, as well as evaluating the comparison result by signaling and/or storing. A corresponding device is also described.
    • 本发明涉及一种用于检查或确定主动传感器和编码器之间的安装空气槽的方法,其中仍然确保传感器无故障运行的空气槽(最大空气槽)的最大尺寸取决于水平 至少在所述电源电压的范围内的传感器的电源电压,其特征在于以下方法步骤:将传感器的电源电压降低到每个时间最大空气槽的至少一个值 通过期望的测试措施减少,并且通过通过降低电源电压来感测传感器输出信号的变化,以及评估所述至少一个测试测量与最大空气槽和现有空气槽之间的期望差异,以及评估 通过信令和/或存储的比较结果。 还描述了相应的装置。
    • 3. 发明授权
    • System for analyzing signals generated by rotating machines
    • 用于分析旋转机器产生的信号的系统
    • US06453273B1
    • 2002-09-17
    • US09974402
    • 2001-10-09
    • Shie QianHui ShaoWei Jin
    • Shie QianHui ShaoWei Jin
    • G01P2102
    • G01H1/003
    • A signal analysis system and method for analyzing an input signal acquired from a mechanical system. The mechanical system may include at least one rotating apparatus. The signal analysis system may include an input for receiving samples of an input signal acquired from the mechanical system, wherein the input signal is sampled in time, and wherein the input signal comprises a plurality of order components. The signal analysis system may also include a processor coupled to the input and a memory medium coupled to the processor which stores analysis software. The processor may be operable to execute the analysis software to: (a) perform an invertible joint time-frequency transform on the input signal to produce a first array of coefficients which depend on time and frequency; (b) generate a modified array of coefficients from the first array of coefficients, wherein the modified array of coefficients corresponds to a desired subset of the plurality of order components; and (c) generate a time domain signal from the modified array of coefficients. The signal analysis system may also include a presentation device coupled to the processor which is operable to present the time domain signal to a user. The time domain signal is useable in analyzing operation of the rotating apparatus in the mechanical system.
    • 一种用于分析从机械系统获取的输入信号的信号分析系统和方法。 机械系统可以包括至少一个旋转装置。 信号分析系统可以包括用于接收从机械系统获取的输入信号的样本的输入,其中输入信号在时间上被采样,并且其中输入信号包括多个次序分量。 信号分析系统还可以包括耦合到输入的处理器和耦合到存储分析软件的处理器的存储介质。 处理器可以可操作以执行分析软件以:(a)对输入信号执行可逆联合时间 - 频率变换以产生依赖于时间和频率的第一系数阵列; (b)从所述第一系数阵列生成经修改的系数阵列,其中所述经修改的系数阵列对应于所述多个次序分量的期望子集; 和(c)从修改的系数阵列产生时域信号。 信号分析系统还可以包括耦合到处理器的呈现设备,其可操作以向用户呈现时域信号。 时域信号可用于分析机械系统中旋转装置的操作。
    • 5. 发明授权
    • System and method for determining instantaneous rotation frequency
    • 用于确定瞬时旋转频率的系统和方法
    • US06324487B1
    • 2001-11-27
    • US09645770
    • 2000-08-24
    • Shie QianHui ShaoWei Jin
    • Shie QianHui ShaoWei Jin
    • G01P2102
    • G01H1/003
    • A signal analysis system and method for analyzing an input signal acquired from a mechanical system. The mechanical system may include at least one rotating apparatus. The signal analysis system may be configured to: (a) receive samples of the input signal, (b) perform an invertible joint time-frequency transform (e.g. a Gabor transform) on the samples of the input signal to produce a first array of coefficients which depend on time and frequency, (c) compute an instantaneous rotation frequency signal, (d) select first coefficients from the first array which correspond to one or more order components in the input signal, i.e. one or more multiples of the instantaneous rotation frequency signal, (e) generate a time domain signal from the first coefficients, and (f) present the time domain signal to a user on a presentation device. The signal analysis system may generate the time domain signal from the first coefficients by performing an inverse joint time-frequency transform on the first coefficients.
    • 一种用于分析从机械系统获取的输入信号的信号分析系统和方法。 机械系统可以包括至少一个旋转装置。 信号分析系统可以被配置为:(a)接收输入信号的采样,(b)对输入信号的样本执行可逆联合时间频率变换(例如,Gabor变换)以产生第一系数阵列 这取决于时间和频率,(c)计算瞬时旋转频率信号,(d)从第一阵列中选择与输入信号中的一个或多个次要分量对应的第一系数,即瞬时旋转频率的一个或多个倍数 信号,(e)从第一系数产生时域信号,以及(f)在呈现装置上向用户呈现时域信号。 信号分析系统可以通过对第一系数执行逆联合时间 - 频率变换来从第一系数产生时域信号。
    • 6. 发明授权
    • Active motion sensor having air gap checking function
    • 主动运动传感器具有气隙检查功能
    • US06215297B1
    • 2001-04-10
    • US08809811
    • 1997-05-17
    • Hans-Wilhelm BleckmannHeinz LoreckPeter Lohberg
    • Hans-Wilhelm BleckmannHeinz LoreckPeter Lohberg
    • G01P2102
    • G01D5/2448G01B7/14G01D3/02G01P3/481G01P21/02
    • In so-called active sensors which transmit an output signal to an electronic controller, the amplitude of the output signal depending neither on the speed of the encoder nor on the distance between the sensor and the encoder, the problem is that the output signal does not permit identifying whether the air slot size set between the sensor and the encoder is chosen sufficiently small to ensure an appropriate amplitude of the input signal, generated in the sensor, even when dynamic increases in the air slot occur. If the input signal induced by the encoder in the sensor is too low, a sensor-inherent hysteresis threshold is not exceeded, and no output signal is generated. To prevent the sensor from being inadvertently operated at the limits of its maximum permissible air slot, according to the present invention, the sensor-inherent hysteresis threshold is changed over to the higher hysteresis threshold for testing purposes. If a sufficient input signal is generated even by way of this higher hysteresis, it may be supposed that the sensor is correctly mounted.
    • 在将输出信号发送到电子控制器的所谓的有源传感器中,输出信号的振幅既不依赖于编码器的速度也不依赖于传感器与编码器之间的距离,因此输出信号不会 允许识别在传感器和编码器之间设置的空气槽尺寸是否被选择得足够小,以确保在传感器中产生的输入信号的适当幅度,即使发生空气槽的动态增加。 如果传感器中由编码器感应的输入信号太低,则不会超过传感器固有滞后阈值,不产生输出信号。 为了防止传感器在其最大允许空气槽的极限处被无意地操作,根据本发明,为了测试目的,传感器固有滞后阈值被转换到较高的滞后阈值。 如果甚至通过这种更高的迟滞产生足够的输入信号,则可以假设传感器被正确地安装。