Hydrocyclone Optimisation
    1.
    发明公开

    公开(公告)号:US20240307893A1

    公开(公告)日:2024-09-19

    申请号:US18577868

    申请日:2022-08-03

    申请人: Vulco SA.

    IPC分类号: B04C11/00 B04C5/14 G01H3/04

    CPC分类号: B04C11/00 B04C5/14 G01H3/04

    摘要: Controlling the operation of a hydrocyclone to maintain the hydrocyclone in a desired operational state as it separates a pumped fluid into an overflow stream and an underflow stream is described. The method comprises measuring vibrations of the hydrocyclone at a selected frequency within a predetermined frequency range; comparing a characteristic of the measured vibrations at the selected frequency with a plurality of values representing transitions between different operational states of the hydrocyclone to identify a current operational state of the hydrocyclone; and generating an adjustment setting to change the identified current operational state to the desired operational state, where the adjustment setting increases or decreases a pumped fluid parameter.

    System and method of integrated vibration monitoring in motor drives

    公开(公告)号:US10378951B2

    公开(公告)日:2019-08-13

    申请号:US15483644

    申请日:2017-04-10

    摘要: An improved system and method for analyzing motor performance to detect vibration of an electric machine controlled by a motor drive is disclosed. A load observer determines an estimated torque present as a load on the motor as a function of input signals corresponding to a desired torque to be generated by the motor and to a measured angular position of the motor during operation. The motor drive determines a frequency response of the estimated torque to identify at what magnitude and frequency any vibration components are present within the estimated torque signal. The motor drive compares the frequency response of the estimated torque signal to set points. If the measured magnitude of vibration at a particular frequency, as seen in the frequency response, exceeds a threshold set in one of the set points for that frequency, the motor drive generates an output signal indicating an excessive vibration is present.

    Revolving lawn sprinkler
    6.
    发明授权
    Revolving lawn sprinkler 失效
    旋转草坪洒水器

    公开(公告)号:US07191958B1

    公开(公告)日:2007-03-20

    申请号:US10718685

    申请日:2003-11-24

    申请人: Hsin-Fa Wang

    发明人: Hsin-Fa Wang

    摘要: A revolving lawn sprinkler comprises a rotary guide plate by which the water flow is so controlled as to actuate a lobed wheel, which in turn actuates a rotary disk via a transmission mechanism. A nozzle is mounted on the rotary disk and is provided with a movable joint. The rotary guide plate is forced to change its revolving direction at such time when a projection of the rotary disk comes in contact with a locating block of a top cover of a housing of the lawn sprinkler.

    摘要翻译: 旋转草坪喷洒器包括旋转引导板,通过该旋转引导板控制水流,以便致动叶轮,其又通过传动机构致动旋转盘。 喷嘴安装在旋转盘上并设置有可动接头。 在旋转盘的突起与草坪喷洒器的壳体的顶盖的定位块接触的时候,旋转导板被迫改变其旋转方向。

    Real time analysis for gas mixtures
    7.
    发明授权
    Real time analysis for gas mixtures 有权
    气体混合物的实时分析

    公开(公告)号:US07146857B2

    公开(公告)日:2006-12-12

    申请号:US10990739

    申请日:2004-11-16

    IPC分类号: G01H3/04

    摘要: The invention is concerned with a method and apparatus for real time analysis of gas mixtures, e g determination of air quality, including at least one resonator (1, 11), means for gas transportation to and from the resonator (1, 11), e g by diffusion or transit flow via openings (5) means for activation (2) and detection (3) of an acoustic signal within the resonator (1, 11), at least one means (7) for measurement of the temperature within the resonator (1, 11), and at least one means (4) for the determination of both the resonance frequency and the quality factor of the resonator (1,11) in real time. These entities are related to the average molecular mass and viscosity or thermal conductivity, respectively, of the gas mixture. The resonator (1, 11 may include a compliant element, e g a constricted volume (6) and an inertial element, e g ist opening (5) or may support standing acoustic waves, in which the sound wavelength is related to a physical dimension of the resonator (1, 11). The determination of resonance frequency and quality factor is preferably based on phase detection within a phase locked loop and is thereby independent of magnitude. In addition to self oscillations at a frequency determined by the resonance frequency, a repetitive frequency modulation is being generated by which a quantity representing the quality factor of the resonator (1, 11) is being generated in real time. Furthermore, means (7) for compensation of temperature or pressure dependence of the resonance frequency or quality factor are included. By an arithmetic-logical unit, e g a microprocessor (9, 17), measured values related to air quality, e g carbon dioxide concentration, relative humidity and temperature are being made available.

    摘要翻译: 本发明涉及一种用于气体混合物的实时分析的方法和装置,例如确定空气质量,包括至少一个谐振器(1,11),用于输入和从谐振器(1,11)输送的装置,例如 通过经由开口(5)的扩散或过渡流通过用于在谐振器(1,11)内的声信号的激活(2)和检测(3)的装置,用于测量谐振器内的温度的至少一个装置(7) 1,11)和至少一个用于确定谐振器(1,11)的谐振频率和品质因数两者的装置(4)。 这些实体分别与气体混合物的平均分子质量和粘度或热导率有关。 谐振器(1,11)可以包括柔性元件,例如缩小的体积(6)和惯性元件,例如开口(5)或可以支撑声波,其中声波长与谐振器的物理尺寸相关 (1,11)谐振频率和质量因子的确定优选基于锁相环内的相位检测,因此与幅度无关,除了由谐振频率确定的频率的自振荡之外,重复频率调制 产生表示谐振器(1,11)的质量因子的量的实时的产生,并且包括用于补偿谐振频率或质量因子的温度或压力依赖性的装置(7),由 算术逻辑单元,例如微处理器(9,17),与空气质量相关的测量值,例如二氧化碳浓度,相对湿度和温度是b 提供。

    Acoustic monitoring of tube vibration
    8.
    发明授权
    Acoustic monitoring of tube vibration 失效
    管振动的声学监测

    公开(公告)号:US4523466A

    公开(公告)日:1985-06-18

    申请号:US546773

    申请日:1983-10-31

    IPC分类号: F22B37/38 G01H3/04 G05D19/00

    摘要: The tubes of tube and shell heat exchangers destructively vibrate at certain velocities with which fluid flows over their outside surfaces. An acoustic generator is positioned to respond to the fluid vibrations generated by the tubes. The structure of the acoustic generator is sized and arranged to produce a modulated tone representative of tube vibration. A detector mounted external the heat exchanger shell responds to the tone to initiate corrective action which will reduce the tube vibration.

    摘要翻译: 管和壳热交换器的管以一定的速度以其流体在其外表面上流动而破坏性地振动。 声发生器被定位成响应于由管产生的流体振动。 声发生器的结构尺寸和布置以产生代表管振动的调制色调。 安装在热交换器壳外部的检测器响应音调以启动校正动作,这将减少管振动。

    Musical instrument with prerecorded tones on tape
    9.
    发明授权
    Musical instrument with prerecorded tones on tape 失效
    带录音带的音乐乐器

    公开(公告)号:US4020729A

    公开(公告)日:1977-05-03

    申请号:US658891

    申请日:1976-02-18

    CPC分类号: G10H3/09 G10H1/0555

    摘要: A musical instrument includes a multiplicity of circular endless magnetizable tapes with a plurality of different tracks, a multiplicity of pick-up heads for each of the tracks and a multiplicity of variable-gain amplifiers connected to the tracks, respectively. Keys having respective contact means for energizing each of the amplifiers, cause a multiplicity of magnetic elements to generate respective voltages in coils, each voltage being proportional to the force with which an individual key has been depressed. This voltage sets the gain of a respective amplifier, so that the loudness of a recorded tone heard is proportional to the actuating force of a key.

    摘要翻译: 一种乐器包括多个具有多个不同轨道的圆形无限可磁化带,多个用于每个轨道的拾取头和分别连接到轨道的多个可变增益放大器。 具有用于对每个放大器通电的相应接触装置的键使多个磁性元件产生线圈中的相应电压,每个电压与单个键被压下的力成比例。 该电压设置相应放大器的增益,使得所听到的记录音的响度与键的致动力成比例。