公开(公告)号：US06543272B1

公开(公告)日：2003-04-08

申请号：US09557050

申请日：2000-04-21

Applicant: Shuki Vitek

Inventor： Shuki Vitek

IPC: G01V1300

CPC classification number: B06B1/0207 ,  A61B2017/00725 ,  A61N7/02 ,  B06B2201/40 ,  B06B2201/76

Abstract: Systems and methods for testing the performance of a focused ultrasound transducer array include transmitting ultrasonic energy from the transducer array towards an acoustic reflector, such as a planar air mirror, and receiving ultrasonic energy reflected off of the acoustic reflector using a sensing element. A characteristic of the reflected ultrasonic energy, such as amplitude and phase, is measured by processing circuitry, for example, by comparing the characteristic of the received ultrasonic energy to a corresponding characteristic of the transmitted ultrasonic energy to obtain an actual gain and phase shift for the received ultrasonic energy. A controller compares the actual gain and phase shift of the received ultrasonic energy to an expected gain and phase shift of the received ultrasonic energy. This information is used to calibrate the transducer array and/or to declare a system failure if the comparison indicates an error.

Abstract translation: 用于测试聚焦超声换能器阵列的性能的系统和方法包括将超声能量从换能器阵列传送到诸如平面空气反射镜的声反射器，以及使用感测元件接收从声反射器反射的超声波能量。 通过处理电路测量反射的超声波能量（例如振幅和相位）的特性，例如通过将接收到的超声能量的特性与发射的超声能量的相应特性进行比较，以获得实际的增益和相移 接收超声能量。 控制器将接收到的超声能量的实际增益和相移与所接收的超声能量的预期增益和相移进行比较。 该信息用于校准换能器阵列和/或如果比较指示错误则声明系统故障。

公开(公告)号：US20030026435A1

公开(公告)日：2003-02-06

申请号：US10213125

申请日：2002-08-06

Applicant: Richard Wolf GmbH

Inventor： Edgar Bauer

IPC: H04R029/00

CPC classification number: G10K15/043 ,  A61B17/22004 ,  A61B17/22029 ,  B06B1/06 ,  B06B2201/20 ,  B06B2201/40 ,  B06B2201/55 ,  B06B2201/76 ,  G01H11/08

Abstract: With a focusing electroacoustic transducer with a carrier which on its front side is equipped with a first group and on its rear side with a second group of ceramic piezolelements, a testing of the transducer power in a transducer test operating mode is carried out in that one of the element groups on the front or rear side is impinged with a high voltage impulse corresponding to the high voltage produced on normal operation of the transducer, and thereupon a secondary voltage impulse serving as a measurement voltage which at the same time is produced by a mechanical loading of the piezoelements of the other group transmitted by the carrier, as a measure of the present transducer power of the activated element group is compared to pregiven, previously determined and stored reference values of the transducer power of the activated element group.

Abstract translation: 使用具有载体的聚焦电声换能器，其前侧配备有第一组，在其后侧具有第二组陶瓷压电体，在换能器测试操作模式中进行换能器功率的测试，其中 在前侧或后侧的元件组的入射点与对应于换能器的正常工作时产生的高电压的高压脉冲相撞，并且随后产生作为测量电压的次级电压脉冲，同时由 将由载体发送的另一组的压电体的机械载荷作为活化元件组的本换能器功率的量度与已激活的先前确定和存储的激活元件组的换能器功率的参考值进行比较。

公开(公告)号：US06236276B1

公开(公告)日：2001-05-22

申请号：US09468035

申请日：1999-12-21

Applicant: Göran Cewers

Inventor： Göran Cewers

IPC: H03L700

CPC classification number: H03J1/00 ,  B06B1/0253 ,  B06B2201/40 ,  B06B2201/55

Abstract: In a method for seeking and setting a resonant frequency for a load impedance and a tuner for carrying out the method, a first frequency sweep is performed over a predetermined frequency interval in order to identify the resonant frequency within the predetermined frequency interval. To maintain the correct resonant frequency, regardless of signal drift and other interference, repeated sweeps are automatically performed within the predetermined frequency interval to identify the resonant frequency repeatedly. Alternating semi-sweeps can be performed to reduce the sweep duration.

Abstract translation: 在用于寻求和设置用于负载阻抗的谐振频率和用于执行该方法的调谐器的方法中，在预定频率间隔中执行第一频率扫描，以便在预定频率间隔内识别谐振频率。 为了保持正确的谐振频率，无论信号漂移和其他干扰如何，在预定频率间隔内自动执行重复扫描，以反复识别谐振频率。 可以执行交替的半扫描以减少扫描持续时间。

公开(公告)号：US5588592A

公开(公告)日：1996-12-31

申请号：US421685

申请日：1995-04-13

Applicant: Robert F. Wilson

Inventor： Robert F. Wilson

IPC: B05B17/06 ,  B06B1/02 ,  H03B5/30 ,  B05B1/08

CPC classification number: B06B1/0253 ,  B05B17/0607 ,  B06B2201/40 ,  B06B2201/77

Abstract: Deleting the onset of flooding of a surface of an ultrasonic atomizer having an ultrasonic transducer with liquid to be atomized, in particular liquid fuel in connection with heaters, wherein the natural resonance frequency of the vibrating ultrasonic transducer is monitored for changes in frequency, and a flooding signal reporting a flooded condition is produced when a drop in resonance frequency over a previously detected resonance frequency is detected whose rate of decrease exceeds a set minimum threshold.

Abstract translation: 用具有超声波换能器的超声波换能器表面溢流开始，该液体要被雾化，特别是与加热器有关的液体燃料，其中监测振动超声波换能器的固有共振频率以改变频率， 当检测到超过先前检测到的共振频率的共振频率降低超过设定的最小阈值时，会产生报告溢流状态的溢流信号。

公开(公告)号：US5551416A

公开(公告)日：1996-09-03

申请号：US232244

申请日：1994-05-10

Applicant: Philip G. Stimpson ,  Andrew D. Hopkins

Inventor： Philip G. Stimpson ,  Andrew D. Hopkins

IPC: A61M11/00 ,  A61M15/00 ,  B05B17/06 ,  B06B1/02

CPC classification number: B05B17/0669 ,  A61M15/0085 ,  B05B17/0607 ,  B05B17/0615 ,  B06B1/0238 ,  A61M2205/3386 ,  B05B12/081 ,  B06B2201/40 ,  B06B2201/55

Abstract: A nebulizer for use in administering a medicament to a patient undergoing treatment for example, comprises an ultrasonic piezo-electric transducer (60) and a transducer drive system (D) which is caused to drive said transducer at or near its anti-resonant frequency. There is also provided means to optimize nebulized fluid particle size and transfer to the patients lungs for example, by operating at an anti-resonant frequency in the range of 1.36 to 1.56 MHz and having a single outlet baffle and relatively short outlet tube (24) arrangement.

Abstract translation: PCT No.PCT / GB92 / 02098 Sec。 371日期1994年5月10日 102（e）日期1994年5月10日PCT提交1992年11月12日PCT公布。 公开号WO93 / 09881 日期：1993年5月27日用于向例如经历治疗的患者施用药物的雾化器包括超声波压电换能器（60）和换能器驱动系统（D），其被驱动在其抗原或其附近的所述换能器 共振频率 还提供了优化雾化流体颗粒尺寸并转移到患者肺的方法，例如通过在1.36至1.56MHz范围内的反共振频率下工作并具有单个出口挡板和相对较短的出口管（24） 安排。

公开(公告)号：US5517994A

公开(公告)日：1996-05-21

申请号：US340562

申请日：1994-11-16

Applicant: Thomas M. Burke ,  James Mehi

Inventor： Thomas M. Burke ,  James Mehi

IPC: G01B17/00 ,  A61B8/00 ,  B06B1/02 ,  B06B1/06 ,  G01N29/00 ,  G01S7/52 ,  G01S7/521 ,  G01S15/89

CPC classification number: G01S7/52079 ,  B06B1/0622 ,  G01S7/5205 ,  B06B2201/40 ,  G01S15/8918 ,  G01S15/8979 ,  G01S7/52017

Abstract: A method and apparatus are described for testing the integrity of an ultrasonic transducer probe or the ultrasound system connected to the probe. The elements of the transducer are pulsed at a time when the probe is not in contact with a patient and the surface of the probe lens is exposed to the open air. The channel electronics receives the echo signal returned from the lens-air interface and reverberations between this interface and the transducer. These signals are analyzed by a diagnostic processor coupled to the channel electronics for characteristics such as amplitude, time of echo reception, group delay, and other characteristics to determine the possible existence of problems such as faulty transducer elements or connections and problems in the system receive electronics. The diagnostic processor can adaptively adjust an operating characteristic of the system electronics such as gain or time delay to compensate for a detected out of tolerance condition.

Abstract translation: 描述了一种用于测试超声波换能器探头或连接到探头的超声系统的完整性的方法和装置。 当探头不与患者接触并且探针透镜的表面暴露于露天时，换能器的元件被脉冲。 通道电子设备接收从透镜空中接口返回的回波信号和该接口与传感器之间的混响。 这些信号由耦合到信道电子设备的诊断处理器分析，用于诸如振幅，回波接收时间，组延迟和其它特性的特性，以确定可能存在诸如故障换能器元件或连接的问题以及系统接收中的问题 电子产品。 诊断处理器可以自适应地调整系统电子设备的操作特性，例如增益或时间延迟，以补偿检测到的超出公差状况。

公开(公告)号：US5130618A

公开(公告)日：1992-07-14

申请号：US455915

申请日：1989-12-28

Applicant: Beverley H. Pardoe

Inventor： Beverley H. Pardoe

IPC: B06B1/02

CPC classification number: B06B1/0223 ,  B06B2201/40 ,  B06B2201/70

Abstract: A drive circuit including a power stage [PSH/PSV] and a control stage therefor to co-operate to supply energy in a controlled manner with regard to a reference value to an inductive load when connected in operation, means [R21, R41/R25, R42] in the power stage to produce a lower level signal indicative of the energization of the load, means [HPR/VPR] to generate a reference value for the energization signal representing a required energization, means [U3.3/U3.4] to compare the energization signal and the reference value and generate an error signal representing any difference therebetween and means [U2.1/U2.3, U2.4] to apply said error signal to said control stage to alter the energy supplied to the load towards the required condition, the reference value may also be related to the frequency at which the load is energized (SE, FBF, OSC, D4).

公开(公告)号：US5058083A

公开(公告)日：1991-10-15

申请号：US624362

申请日：1990-12-07

Applicant: Robert E. Page

Inventor： Robert E. Page

IPC: B06B1/02 ,  H03G3/00 ,  H03G3/20

CPC classification number: H03G3/001 ,  B06B1/0223 ,  H03G3/20 ,  B06B2201/40 ,  Y10S367/90 ,  Y10S367/903

Abstract: Linear and switching amplifiers associated with acoustic transducers requ a gradual turn-on rather than an abrupt full-power level signal. A transducer preamplifier power controller circuit prevents the operation of fuses and the tripping of circuit breakers when the relatively high power driving levels for a sonar transducer are initiated. The controller circuit gradually increases a signal level from a zero level to a maximum during the initiation of a sonar signal using a threshold level that is set to a fraction of the expected maximum, and two discrete clock frequencies, for example at 1 MHz and 2 KHz actuate interconnected digital control elements incrementally to increase the signal level during a predetermined period. This cycle is re-initiated by the next sonar signal.

Abstract translation: 与声换能器相关的线性和开关放大器需要逐渐接通而不是突然的全功率电平信号。 传感器前置放大器功率控制器电路在启动声纳传感器的相对高功率驱动电平时，可以防止保险丝的操作和断路器的跳闸。 控制器电路在使用设置为预期最大值的一部分的阈值电平和两个离散时钟频率（例如1 MHz和2）的情况下，在声纳信号启动期间将信号电平从零电平逐渐增加到最大值 KHz增量地驱动互连的数字控制元件，以在预定时段期间增加信号电平。 该周期由下一个声纳信号重新启动。

公开(公告)号：US4271371A

公开(公告)日：1981-06-02

申请号：US79206

申请日：1979-09-26

Applicant: Shuhei Furuichi ,  Takahiko Nose

Inventor： Shuhei Furuichi ,  Takahiko Nose

IPC: B06B1/02 ,  H01L41/08

CPC classification number: B06B1/0253 ,  B06B2201/40 ,  B06B2201/55

Abstract: A driving circuit for ultrasonic tools which uses a piezoelectric transducer to convert ultrasonic electric signals into ultrasonic mechanical vibrations including a voltage-controlled oscillator which produces an output signal at a frequency that is proportional to an input voltage, a power amplifier stage having its input coupled to the output of the voltage-controlled oscillator, the power amplifier stage including an output transformer which couples the output of the power amplifier stage to the piezoelectric transducer, the power output transformer further acting as both an insulating transformer and a boosting transformer for the driving circuit and a feedback transformer coupled in series with the secondary side of the output transformer and the piezoelectric transducer, the feedback transformer having a secondary side through which a current flows which is proportional to the current flowing through the piezoelectric transducer, a phase comparitor which detects the phase difference between two signals applied to two inputs of the phase comparitor, the two inputs being respectively coupled to the output signal of the voltage controlling oscillator and the secondary side of the feedback transformer and a low pass filter which blocks high frequency components to pass therethrough connected between an output of the phase comparitor and the input of the voltage controlled oscillator.

Abstract translation: 一种用于超声波工具的驱动电路，其使用压电换能器将超声波电信号转换成超声机械振动，包括以与输入电压成比例的频率产生输出信号的压控振荡器，功率放大器级的输入耦合 对于压控振荡器的输出，功率放大器级包括将功率放大器级的输出耦合到压电换能器的输出变压器，功率输出变压器进一步充当用于驱动的​​绝缘变压器和升压变压器 电路和与输出变压器和压电换能器的次级侧串联耦合的反馈变压器，反馈变压器具有次级侧，电流与流过压电换能器的电流成比例流动;相位比较器，其检测 相位不同 两个输入分别耦合到电压控制振荡器和反馈变压器的次级侧的输出信号，以及阻塞高频分量通过的低通滤波器连接到相位比较器的两个输入端 在相位比较器的输出和压控振荡器的输入之间。

公开(公告)号：US4156157A

公开(公告)日：1979-05-22

申请号：US906554

申请日：1978-05-16

Applicant: Pierre Mabille

Inventor： Pierre Mabille

IPC: B06B1/06 ,  A61C1/07 ,  B06B1/02 ,  H01L41/10

CPC classification number: A61C1/07 ,  B06B1/0253 ,  B06B2201/40 ,  B06B2201/76

Abstract: This ultrasonic generator comprises a transducer supplied by an oscillator via a transformer. The oscillator is supplied in parallel by a constant current generator and a voltage generator. Means are also provided to block the voltage generator as long as the impedance of the load remains lower than an adjustable threshold, so that the supply functions as constant current generator and, on the contrary, to block the current generator as soon as the impedance of the load exceeds the adjustable threshold, so that the supply then functions as voltage generator and limits the output power.

Abstract translation: 该超声波发生器包括通过变压器由振荡器提供的换能器。 振荡器由恒流发生器和电压发生器并联供电。 只要负载的阻抗保持低于可调整的阈值，也可以提供阻挡电压发生器的装置，使得电源用作恒定电流发生器，相反地，一旦阻抗 负载超过可调节阈值，因此电源作为电压发生器起作用并限制输出功率。