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    • 1. 发明申请
    • LIQUID PROJECTION APPARATUS
    • 液体投影仪
    • WO2008044071A1
    • 2008-04-17
    • PCT/GB2007/050627
    • 2007-10-12
    • THE TECHNOLOGY PARTNERSHIP PLCBROWN, Andrew Benjamin DavidGALLUZZO, Paul Mark
    • BROWN, Andrew Benjamin DavidGALLUZZO, Paul Mark
    • B41J2/14
    • B41J2/14201B41J2/055B41J2202/15
    • A device for projecting liquid as jets or droplets from multiple nozzles (13), the device comprising: a plurality of transducers (7) oriented substantially parallel to one another and each having an inner face and an outer face opposite said inner face, the transducers being arranged in a substantially planar array; a plurality of nozzles to project liquid therefrom; liquid supply means for supplying a liquid to the nozzles; each nozzle is associated with an adjacent respective transducer which is excitable to cause movement of the adjacent associated nozzle in a direction substantially aligned with the nozzle axis, to project liquid therefrom; the liquid supply means supplies liquid to an inner end of said nozzle; means for selectively exciting transducers as required, thereby to project liquid as jets or droplets from the respective outer face by movement of the liquid through the nozzle in response to the movement of the nozzle; wherein one or more pressure absorbing regions (31) are disposed at a predetermined distance from said nozzles, in a direction perpendicular to the substantially planar array of transducers.
    • 一种用于将液体作为喷嘴或液滴从多个喷嘴(13)投射的装置,所述装置包括:多个换能器(7),其基本上彼此平行地定向并且每个具有内表面和与所述内表面相对的外表面,所述换能器 布置在基本平坦的阵列中; 多个喷嘴,以从其中投射液体; 用于向喷嘴供给液体的液体供给装置; 每个喷嘴与相邻的相应的换能器相关联,该换能器可兴奋地引起相邻相关联的喷嘴在与喷嘴轴线基本对齐的方向上的运动,以便从其喷射液体; 液体供应装置将液体供应到所述喷嘴的内端; 用于根据需要选择性地激发换能器的装置,从而通过响应于喷嘴的运动而使液体通过喷嘴移动而将液体作为射流或液滴从相应的外表面投射; 其中一个或多个压力吸收区域(31)在与所述基本上平面的换能器阵列垂直的方向上与所述喷嘴预定距离地设置。
    • 2. 发明申请
    • LIQUID PROJECTION APPARATUS
    • 液体投影仪
    • WO2008044070A1
    • 2008-04-17
    • PCT/GB2007/050626
    • 2007-10-12
    • THE TECHNOLOGY PARTNERSHIP PLCBROWN, Andrew Benjamin DavidGALLUZZO, Paul Mark
    • BROWN, Andrew Benjamin DavidGALLUZZO, Paul Mark
    • B41J2/14
    • B41J2/14201B41J2002/14403B41J2202/15
    • A device for projecting liquid as jets or droplets from multiple nozzles (13), the device comprising: a plurality of transducers (7) oriented substantially parallel to one another and each having an inner face and an outer face opposite said inner face, the transducers being arranged in a substantially planar array; a plurality of nozzles to project liquid therefrom; liquid supply means for supplying a liquid to the nozzles; each nozzle being associated with an adjacent respective transducer which is excitable to cause movement of the adjacent associated nozzle in a direction substantially aligned with the nozzle axis, to project liquid therefrom; the liquid supply means supplying liquid to an inner end of said nozzle; means for selectively exciting transducers as required, thereby to project liquid as jets or droplets from the respective outer face by movement of the liquid through the nozzle in response to the movement of the nozzle; and at least one boundary (20, 32, 21) spaced from the transducers and arranged to constrain the liquid adjacent the inner faces of the transducers in fewer than three dimensions.
    • 一种用于将液体作为喷嘴或液滴从多个喷嘴(13)投射的装置,所述装置包括:多个换能器(7),其基本上彼此平行地定向并且每个具有内表面和与所述内表面相对的外表面,所述换能器 被布置在基本平坦的阵列中; 多个喷嘴,用于从其中投射液体; 用于向喷嘴供给液体的液体供应装置; 每个喷嘴与相邻的相应的换能器相关联,该换能器可兴奋地引起相邻喷嘴相对于喷嘴轴线方向的移动,从而将液体投射出来; 所述液体供应装置将液体供应到所述喷嘴的内端; 用于根据需要选择性地激发换能器的装置,由此响应于喷嘴的移动,液体通过喷嘴的移动而从相应的外表面喷射液体作为射流或液滴; 以及至少一个与换能器间隔开的边界(20,32,21),并布置成在少于三维的范围内约束靠近换能器内表面的液体。
    • 4. 发明申请
    • DUAL-FREQUENCY ULTRASOUND TRANSDUCER
    • 双频超声波传感器
    • WO2010146136A1
    • 2010-12-23
    • PCT/EP2010/058582
    • 2010-06-17
    • SONOVIA LTDGALLUZZO, Paul MarkBUCKLAND, Justin RorkePOLLOCK, Neil
    • GALLUZZO, Paul MarkBUCKLAND, Justin RorkePOLLOCK, Neil
    • B06B1/02
    • B06B1/0603Y10T29/49005
    • A dual-frequency ultrasound transducer, comprising a piezo-electric element bonded to a substrate, has two resonant vibration modes: a low frequency mechanical bending resonance mode and a relatively high frequency thickness resonance mode. The low frequency bending resonance mode occurs when the piezo-electric element is excited, in use, by a voltage which includes a low frequency oscillating component. The high frequency thickness resonance mode occurs when the piezo-electric element is excited, in use, by a voltage which includes a relatively high frequency oscillating component. The transducer may include a mounting arrangement, such as a support ring securing the periphery of the substrate to an underlying base layer that enhances the depth of penetration and focus of the ultrasound.
    • 一种双频超声波换能器,包括结合到基底上的压电元件,具有两个共振振动模式:低频机械弯曲共振模式和相对高频率的厚度共振模式。 当压电元件在使用中被包括低频振荡分量的电压激发时,发生低频弯曲共振模式。 当压电元件在使用中被包括相对高频振荡分量的电压激发时,发生高频厚度谐振模式。 换能器可以包括安装布置,例如将基底​​的周边固定到下面的基底层的支撑环,其增强了超声的穿透深度和聚焦。
    • 5. 发明申请
    • LIQUID PROJECTION APPARATUS
    • 液体投影仪
    • WO2011117629A1
    • 2011-09-29
    • PCT/GB2011/050578
    • 2011-03-23
    • THE TECHNOLOGY PARTNERSHIP PLCGALLUZZO, Paul, MarkSMITH, David, Peter, Henry
    • GALLUZZO, Paul, MarkSMITH, David, Peter, Henry
    • B41J2/045
    • B05B12/08B41J2/04581B41J2/04596B41J2/04598B41J2202/15
    • A method of producing droplets from a nozzle provided on a material layer, the method comprising the steps of supplying liquid to an inner end of an array of nozzles, the nozzles being split into M groups of one or more nozzles, generating one or more firing signals, each firing signal causing sufficient movement of a group of nozzles relative to the liquid such that liquid is projected as droplets from the outer face of the respective nozzles, generating one or more sub-firing signals associated with each group of nozzles, the one or more sub-firing signals causing movement of the group of nozzles which is insufficient to project liquid from the nozzles, the sub-firing signals of adjacent groups having a non-zero phase relationship, wherein the sub-firing signal(s) of at least one group of nozzles is independent of the firing signal(s) associated with that group.
    • 一种从设置在材料层上的喷嘴产生液滴的方法,所述方法包括以下步骤:向喷嘴阵列的内端提供液体,喷嘴被分成M组的一个或多个喷嘴,产生一个或多个喷射 信号,每个点火信号引起一组喷嘴相对于液体的足够的运动,使得液体从相应喷嘴的外表面喷射成液滴,产生与每组喷嘴相关联的一个或多个次发射信号,一个 或更多的次发射信号,引起不足以从喷嘴投射液体的喷嘴组的运动,相邻组的次点火信号具有非零相位关系,其中, 至少一组喷嘴独立于与该组相关联的点火信号。
    • 6. 发明申请
    • LIQUID PROJECTION APPARATUS
    • 液体投影仪
    • WO2008044069A1
    • 2008-04-17
    • PCT/GB2007/050625
    • 2007-10-12
    • THE TECHNOLOGY PARTNERSHIP PLCBROWN, Andrew, Benjamin, DavidGALLUZZO, Paul, Mark
    • BROWN, Andrew, Benjamin, DavidGALLUZZO, Paul, Mark
    • B41J2/045
    • B41J2/04596B41J2/04525B41J2/04581B41J2/04588B41J2002/022B41J2202/15
    • A method of projecting liquid as jets or droplets from a nozzle (13) provided on a transducer (7) formed by a region of a material layer, the method comprising the steps of : supplying liquid to an inner end of the nozzle; exciting the nozzle to cause movement of the nozzle in a direction substantially aligned with the nozzle axis in order to project liquid as a droplet from an outer face of the nozzle; wherein the step of exciting the nozzle comprises sequentially driving the transducer with a first rising voltage change (40,44a, 45a, 46a, 47a, 48a), a first falling voltage change (41, 44b, 45b, 46b, 47b, 48b), a second rising voltage change (42, 44c, 45c, 46c, 47c, 48c) and a second falling voltage change; and wherein the first rising voltage change and the first falling voltage change are timed so that they enhance the movement of the material layer, and the second rising voltage change and the second falling voltage change are timed so that they substantially cancel the movement of the material layer.
    • 一种从设置在由材料层的区域形成的换能器(7)上的喷嘴(13)喷射液体作为射流或液滴的方法,所述方法包括以下步骤:向所述喷嘴的内端供应液体; 激发喷嘴以引起喷嘴沿与喷嘴轴线基本对准的方向的移动,以便从喷嘴的外表面以液滴的形式投射液体; 其中激发喷嘴的步骤包括以第一升压变化(40,44a,45a,46a,47a,48a),第一下降电压变化(41,44b,45b,46b,47b,48b)依次驱动所述换能器, ,第二上升电压变化(42,44c,45c,46c,47c,48c)和第二降压变化; 并且其中第一升高电压变化和第一下降电压变化被定时,使得它们增强材料层的移动,并且第二上升电压变化和第二下降电压变化被定时,使得它们基本上抵消了材料的移动 层。