Broadband long pulse ultrasonic inspection
    111.
    发明授权
    Broadband long pulse ultrasonic inspection 失效
    宽带长脉冲超声波检查

    公开(公告)号:US07467560B2

    公开(公告)日:2008-12-23

    申请号:US10528410

    申请日:2003-09-24

    Abstract: A robotic ultrasonic inspection vehicle is provided with one or more transducers which are driven by a long, broadband excitation pulse for insonifying a sample subject to inspection. The long, broadband excitation pulse can be chirped. The robotic vehicle also can include a drive circuit for coupling the excitation pulse to the transducer. Data associated with the excitation pulse is used to gate off the drive circuitry at an appropriate time. The robotic vehicle may traverse a combustion prone region and therefore electrical parameters may be limited to intrinsically safe levels. However electrical parameters may safely be converted to higher levels so long as the conversion is inhibited to occur only after the vehicle has left a combustion prone region and entered a region of minimal risk of combustion.

    Abstract translation: 机器人超声波检查车辆设置有一个或多个换能器,其由长的宽带激励脉冲驱动,用于使待检查的样品失真。 长时间的宽带激励脉冲可以被啁啾。 机器人车辆还可以包括用于将激励脉冲耦合到换能器的驱动电路。 与激励脉冲相关的数据用于在适当的时间关闭驱动电路。 机器人车辆可以穿过易燃燃烧区域,因此电气参数可能被限制在本质安全的水平。 然而,只要在车辆离开燃烧容易区域并进入最小燃烧风险的区域之后,只要转换被抑制才能将电气参数安全地转换成更高的水平。

    Power driving circuit for controlling a variable load ultrasonic transducer
    112.
    发明授权
    Power driving circuit for controlling a variable load ultrasonic transducer 失效
    用于控制可变负载超声波换能器的动力驱动电路

    公开(公告)号:US07408290B2

    公开(公告)日:2008-08-05

    申请号:US11069492

    申请日:2005-02-28

    CPC classification number: B06B1/0246 B06B2201/58 B06B2201/70

    Abstract: The present invention is directed to a high-powered (e.g., >500 W) ultrasonic generator for use especially for delivering high-power ultrasonic energy to a varying load including compressible fluids. The generator includes a variable frequency triangular waveform generator coupled with pulse width modulators. The output from the pulse width modulator is coupled with the gates of an Isolated Gate Bipolar Transistor (IGBT), which amplifies the signal and delivers it to a coil that is used to drive a magnetostrictive transducer. In one embodiment, high voltage of 0-600 VDC is delivered across the collector and emitter of the IGBT after the signal is delivered. The output of the IGBT is a square waveform with a voltage of +/−600V. This voltage is sent to a coil wound around the ultrasonic transducer. The voltage creates a magnetic field on the transducer and the magnetorestrictive properties of the transducer cause the transducer to vibrate as a result of the magnetic field. The use of the IGBT as the amplifying device obviates the need for a Silicon Controlled Rectifier (SCR) circuit, which is typically used in low powered ultrasonic transducers, and which would get overheated and fail in such a high-powered and load-varying application.

    Abstract translation: 本发明涉及一种用于特别用于将大功率超声能量递送到包括可压缩流体的变化载荷的大功率(例如> 500W)超声发生器。 发生器包括与脉宽调制器耦合的可变频三角波形发生器。 脉冲宽度调制器的输出与隔离栅双极晶体管(IGBT)的栅极耦合,隔离栅极双极晶体管(IGBT)放大信号并将其传送到用于驱动磁致伸缩换能器的线圈。 在一个实施例中,在信号传送之后,跨越IGBT的集电极和发射极输送0-600VDC的高电压。 IGBT的输出是+/- 600V电压的方波。 该电压被发送到围绕超声换能器缠绕的线圈。 电压在换能器上产生磁场,并且传感器的磁致伸缩特性导致换能器由于磁场而振动。 使用IGBT作为放大器件消除了对通常用于低功率超声换能器中的硅控整流器(SCR)电路的需要,并且在这种大功率和负载变化的应用中将会过热和失效 。

    Tactile transducers and method of operating
    113.
    发明授权
    Tactile transducers and method of operating 有权
    触觉传感器和操作方法

    公开(公告)号:US07129824B2

    公开(公告)日:2006-10-31

    申请号:US10651133

    申请日:2003-08-28

    CPC classification number: B06B1/0276 B06B2201/20 B06B2201/70 H04M1/03

    Abstract: A portable electronic device (100) includes a vibrating transducer having a resilient support and a first mass supported by the first resilient support forming a mechanical resonator, and an electrical circuit coupled to the first vibrating transducer to apply a drive signal. A plurality of tactile vibration transducers (130, 140) can work in unison to produce strong tactile stimulus (216, 228, 230).

    Abstract translation: 便携式电子设备(100)包括具有弹性支撑件的振动换能器和由形成机械谐振器的第一弹性支撑件支撑的第一质量,以及耦合到第一振动换能器以施加驱动信号的电路。 多个触觉振动换能器(130,140)可一起工作以产生强烈的触觉刺激(216,228,230)。

    Power driving circuit for controlling a variable load ultrasonic transducer
    114.
    发明申请
    Power driving circuit for controlling a variable load ultrasonic transducer 失效
    用于控制可变负载超声波换能器的动力驱动电路

    公开(公告)号:US20060238068A1

    公开(公告)日:2006-10-26

    申请号:US11069492

    申请日:2005-02-28

    CPC classification number: B06B1/0246 B06B2201/58 B06B2201/70

    Abstract: The present invention is directed to a high-powered (e.g., >500 W) ultrasonic generator for use especially for delivering high-power ultrasonic energy to a varying load including compressible fluids. The generator includes a variable frequency triangular waveform generator coupled with pulse width modulators. The output from the pulse width modulator is coupled with the gates of an Isolated Gate Bipolar Transistor (IGBT), which amplifies the signal and delivers it to a coil that is used to drive a magnetostrictive transducer. In one embodiment, high voltage of 0-600 VDC is delivered across the collector and emitter of the IGBT after the signal is delivered. The output of the IGBT is a square waveform with a voltage of ±600V. This voltage is sent to a coil wound around the ultrasonic transducer. The voltage creates a magnetic field on the transducer and the magnetorestrictive properties of the transducer cause the transducer to vibrate as a result of the magnetic field. The use of the IGBT as the amplifying device obviates the need for a Silicon Controlled Rectifier (SCR) circuit, which is typically used in low powered ultrasonic transducers, and which would get overheated and fail in such a high-powered and load-varying application.

    Abstract translation: 本发明涉及一种用于特别用于将大功率超声能量递送到包括可压缩流体的变化载荷的大功率(例如> 500W)超声发生器。 发生器包括与脉宽调制器耦合的可变频三角波形发生器。 脉冲宽度调制器的输出与隔离栅双极晶体管(IGBT)的栅极耦合,隔离栅极双极晶体管(IGBT)放大信号并将其传送到用于驱动磁致伸缩换能器的线圈。 在一个实施例中,在信号传送之后,跨越IGBT的集电极和发射极输送0-600VDC的高电压。 IGBT的输出是电压为±600V的方波。 该电压被发送到围绕超声换能器缠绕的线圈。 电压在换能器上产生磁场,并且传感器的磁致伸缩特性导致换能器由于磁场而振动。 使用IGBT作为放大器件消除了对通常用于低功率超声换能器中的硅控整流器(SCR)电路的需要,并且在这种大功率和负载变化的应用中将会过热和失效 。

    Broadband long pulse ultrasonic inspection
    115.
    发明申请
    Broadband long pulse ultrasonic inspection 失效
    宽带长脉冲超声波检查

    公开(公告)号:US20060010995A1

    公开(公告)日:2006-01-19

    申请号:US10528410

    申请日:2003-09-24

    Abstract: A robotic ultrasonic inspection vehicle is provided with one or more transducers which are driven by a long, broad-band excitation pulse for insonifying a sample subject to inspection. Preferably the long, broadband excitation pulse is chirped. The robotic vehicle also includes a drive circuit for coupling the excitation pulse to the transducer. Data associated with the excitation pulse is used to gate off the drive circuitry at an appropriate time. The robotic vehicle may traverse a combustion prone region and therefore electrical parameters may be limited to intrinsically safe levels. However electrical parameters may safely be converted to higher levels so long as the conversion is inhibited to occur only after the vehicle has left a combustion prone region and entered a region of minimal risk of combustion.

    Abstract translation: 机器人超声波检查车辆设置有一个或多个换能器,其由长宽带激励脉冲驱动,用于使待检验的样品失真。 优选地,长的宽带激励脉冲被啁啾。 机器人车辆还包括用于将激励脉冲耦合到换能器的驱动电路。 与激励脉冲相关的数据用于在适当的时间关闭驱动电路。 机器人车辆可以穿过易燃燃烧区域,因此电气参数可能被限制在本质安全的水平。 然而,只要在车辆离开燃烧容易区域并进入最小燃烧风险的区域之后,只要转换被抑制才能将电气参数安全地转换成更高的水平。

    Smart screening machine
    116.
    发明授权
    Smart screening machine 失效
    智能筛选机

    公开(公告)号:US06953122B2

    公开(公告)日:2005-10-11

    申请号:US10321052

    申请日:2002-12-17

    Inventor: Daryoush Allaei

    CPC classification number: B07B1/50 B06B1/0261 B06B2201/70 B07B1/42

    Abstract: A screening machine that includes a screen having a periphery and a central porous region is provided. A motion amplifier is substantially rigidly attached in direct contact with the periphery of the screen and not in direct contact with the central porous region. A transducer is substantially rigidly attached to the motion amplifier, wherein the transducer imparts a vibratory motion to the screen via the motion amplifier.

    Abstract translation: 提供一种包括具有周边和中心多孔区域的筛网的筛选机。 运动放大器基本上刚性地附接到与屏幕的周边直接接触并且不与中心多孔区域直接接触。 传感器基本上刚性地附接到运动放大器,其中换能器通过运动放大器向屏幕施加振动运动。

    Smart screening machine
    117.
    发明授权
    Smart screening machine 失效
    智能筛选机

    公开(公告)号:US06938778B2

    公开(公告)日:2005-09-06

    申请号:US10321083

    申请日:2002-12-17

    Inventor: Daryoush Allaei

    CPC classification number: B07B1/50 B06B1/0261 B06B2201/70 B07B1/42

    Abstract: A screening machine having a base is provided. A screen is coupled to the base to separate material by size. The screening machine includes a vibration motor having piezoelectric elements and a vibration amplifier located between the piezoelectric elements and the screen. One or more of the piezoelectric elements can be used as sensors to provide feedback for operation control.

    Abstract translation: 提供具有底座的筛分机。 屏幕耦合到基座以按尺寸分隔材料。 筛选机包括具有压电元件的振动马达和位于压电元件和屏幕之间的振动放大器。 一个或多个压电元件可以用作传感器以提供用于操作控制的反馈。

    Apparatus, circuitry, signals and methods for cleaning and/or processing with sound
    118.
    发明申请
    Apparatus, circuitry, signals and methods for cleaning and/or processing with sound 有权
    用于清洁和/或处理声音的装置,电路,信号和方法

    公开(公告)号:US20050017599A1

    公开(公告)日:2005-01-27

    申请号:US10855135

    申请日:2004-05-27

    Applicant: William Puskas

    Inventor: William Puskas

    Abstract: The invention utilizes a multiple frequency ultrasound generator driving a multiple frequency harmonic transducer array to improve cleaning and processing effects while eliminating damage to parts being cleaned. An AC switch and circuitry to modify the output of an ultrasound generator in combination with techniques such as random AM and FM signals are used to produce ultrasound waves that have no single frequency components which eliminates exciting parts being cleaned into resonance. Generator signals that increase cavitation efficiency and that have successive time periods with predominately stable cavitation and predominantly transient cavitation further improve the performance of the cleaning or processing systems.

    Abstract translation: 本发明利用驱动多频谐波换能器阵列的多频超声波发生器来改善清洁和处理效果,同时消除对被清洁部件的损坏。 AC开关和用于修改超声波发生器的输出以及诸如随机AM和FM信号的技术的电路用于产生没有单一频率分量的超声波,其消除被清理成谐振的兴奋部分。 具有增加气蚀效率并且具有主要稳定的气蚀和主要是瞬时空化的连续时间段的发电机信号进一步改善了清洁或处理系统的性能。

    Apparatus, circuitry and methods for cleaning and/or processing with sound waves
    119.
    发明授权
    Apparatus, circuitry and methods for cleaning and/or processing with sound waves 有权
    用于清洁和/或用声波处理的装置,电路和方法

    公开(公告)号:US06822372B2

    公开(公告)日:2004-11-23

    申请号:US10178751

    申请日:2002-06-24

    Abstract: The invention utilizes a multiple frequency ultrasound generator driving a multiple frequency harmonic transducer array to improve cleaning and processing effects while eliminating damage to parts being cleaned. An AC switch and circuitry to modify the output of an ultrasound generator in combination with techniques such as random AM and FM signals are used to produce ultrasound waves that have no single frequency components which eliminates exciting parts being cleaned into resonance.

    Abstract translation: 本发明利用驱动多频谐波换能器阵列的多频超声波发生器来改善清洁和处理效果,同时消除对被清洁部件的损坏。 AC开关和用于修改超声波发生器的输出以及诸如随机AM和FM信号的技术的电路用于产生没有单一频率分量的超声波,其消除被清理成谐振的兴奋部分。

    Ultrasound transducer temperature compensation methods, apparatus and programs
    120.
    发明授权
    Ultrasound transducer temperature compensation methods, apparatus and programs 失效
    超声换能器温度补偿方法,仪器和程序

    公开(公告)号:US06782332B2

    公开(公告)日:2004-08-24

    申请号:US10261641

    申请日:2002-09-30

    Abstract: Method, apparatus and computer programs are described for compensating for the effect of temperature on the sensitivity of electrostatic ultrasound (US) transducers, particularly as used in an automotive occupancy sensing (AOS) systems for sensing the nature or type of occupant and the location of the occupant with respect to the vehicle interior. The invention permits the AOS to classify the occupancy state of the vehicle from a US echo signal substantially free of the effects of temperature on signal amplitude. A capacitive divider or voltage monitor is employed to measure the capacitance of the transducer. The voltage monitor output is used by the scaling algorithm of a compensator to determine the scaling factor to be applied to the US transducer signal to compensate for the effect of temperature on the transducer sensitivity. Calibration procedures and software are disclosed for determining the coefficients of the scaling algorithm to compensate for temperature effects and also to compensate for installation factors, transducer manufacturing variations, and circuit board effects. The system disclosed is useful for other types of signal processing in addition to temperature compensation of AOS ultrasonic signals, and may be used in other ranging devices such as cameras, golf or binocular range finders, and measuring devices and instruments.

    Abstract translation: 描述了用于补偿温度对静电超声波(US)传感器的灵敏度的影响的方法,装置和计算机程序,特别是在用于感测乘员的性质或类型的汽车占用感测(AOS)系统中使用的位置以及 乘客相对于车辆内部。 本发明允许AOS从基本上不受温度对信号幅度的影响的美国回波信号分类车辆的占用状态。 采用电容分压器或电压监视器来测量传感器的电容。 电压监视器输出由补偿器的缩放算法使用,以确定应用于美国换能器信号的比例因子,以补偿温度对传感器灵敏度的影响。 公开了用于确定缩放算法的系数以补偿温度影响并且还补偿安装因素,换能器制造变化和电路板效应的校准程序和软件。 除了AOS超声波信号的温度补偿之外,所公开的系统对于其它类型的信号处理也是有用的,并且可以用于其他测距装置,例如相机,高尔夫或双目测距仪,以及测量装置和仪器。

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