Method for seeking and setting a resonant frequency and tuner operating according to the method
    101.
    发明授权
    Method for seeking and setting a resonant frequency and tuner operating according to the method 失效
    用于根据该方法寻找和设置谐振频率和调谐器操作的方法

    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

    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。

    Ultrasonic surgical apparatus
    102.
    发明授权
    Ultrasonic surgical apparatus 失效
    超声波手术器械

    公开(公告)号:US06083191A

    公开(公告)日:2000-07-04

    申请号:US116261

    申请日:1993-08-09

    Applicant: Emery S. Rose

    Inventor: Emery S. Rose

    Abstract: An electrical apparatus for driving an ultrasonic piezoelectric crystal transducer in a surgical handpiece for the fragmentation and aspiration of tissue, which apparatus includes an electronic control loop in combination with a voltage source amplifier having an output which is connected to the piezoelectric crystal transducer with a tuning inductor in parallel. A control system for monitoring the control loop and a component for controlling tissue selectivity are also disclosed.

    Abstract translation: 一种用于驱动用于组织的分裂和抽吸的外科手持机械中的超声波压电晶体换能器的电气设备,该装置包括电子控制回路和电压源放大器,该电压源放大器具有连接到压电晶体换能器的输出,其具有调谐 电感并联。 还公开了一种用于监控控制回路的控制系统和用于控制组织选择性的部件。

    Nebuliser and nebuliser control system
    103.
    发明授权
    Nebuliser and nebuliser control system 失效
    雾化器和雾化器控制系统

    公开(公告)号:US5551416A

    公开(公告)日:1996-09-03

    申请号:US232244

    申请日:1994-05-10

    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。

    Device for generating sound impulses for medical applications
    104.
    发明授权
    Device for generating sound impulses for medical applications 失效
    用于为医疗应用产生声音脉冲的装置

    公开(公告)号:US5549110A

    公开(公告)日:1996-08-27

    申请号:US206073

    申请日:1994-03-04

    Abstract: A device, which is especially made for the generation of shockwaves to detect inner-body objects, is equipped with piezo-ceramic transducer elements which act as an electro-acoustical transducer which can be driven by a high-voltage source with high-voltage impulses to generate shock waves or sound impulses through directed deformations and length changes of the transducer elements is dependent on the given polarization of the transducer elements and the polarity of the high-voltage impulses. The sound energy emitted by the device may then be especially high if the transducer elements are excited and biased with a bias potential before the appearance of a high-voltage impulse and the polarity of the bias potential is opposite to that of the high-voltage impulse.

    Abstract translation: 特别用于产生用于检测内部物体的冲击波的装置配备有压电陶瓷换能器元件,其作为可以由具有高压脉冲的高压源驱动的电声换能器 通过定向变形产生冲击波或声音脉冲,并且换能器元件的长度变化取决于换能器元件的给定极化和高压脉冲的极性。 如果换能器元件在出现高压脉冲之前被激发并偏置偏置电位,并且偏置电位的极性与高电压脉冲的极性相反,则器件发出的声能可能特别高 。

    Device for driving piezoelectric vibrator
    105.
    发明授权
    Device for driving piezoelectric vibrator 失效
    用于驱动压电振动器的装置

    公开(公告)号:US5136199A

    公开(公告)日:1992-08-04

    申请号:US614427

    申请日:1990-11-16

    Applicant: Taneichi Kawai

    Inventor: Taneichi Kawai

    CPC classification number: B60R1/0602 B06B1/0253 B06B2201/55 B06B2201/70

    Abstract: A device for driving a piezoelectric vibrator is comprised of an AC power supply for supplying electric power to a piezoelectric vibrator for vibration thereof, a detecting device for detecting current supplied to the piezoelectric vibrator, and a driving circuit interposed between the AC power supply and the piezoelectric vibrator so as to decrease the electric power being supplied to the piezoelectric vibrator as the current flowing therethrough increases. This structure brings a decrease in electric power being supplied to the piezoelectric vibrator when current flowing therethrough is increased during resonance of the piezoelectric vibrator, thereby enabling the restriction or regulation of the expansion and contraction of the piezoelectric vibrator while maintaining resonance thereof.

    Abstract translation: 用于驱动压电振动器的装置包括用于向压电振动器提供电力用于其振动的AC电源,用于检测提供给压电振动器的电流的检测装置,以及插入在AC电源和 压电振动器,以便随着流过的电流而增加供给压电振动器的电力。 当压电振子的共振过程中流过的电流增加时,这种结构导致向压电振动器供给的电力的降低,从而能够抑制或调节压电振动器的膨胀和收缩,同时保持其共振。

    Ultrasonic generator with a piezoelectric converter
    106.
    发明授权
    Ultrasonic generator with a piezoelectric converter 失效
    带压电转换器的超声波发生器

    公开(公告)号:US5121023A

    公开(公告)日:1992-06-09

    申请号:US552710

    申请日:1990-07-16

    Applicant: Martin Abel

    Inventor: Martin Abel

    Abstract: In an ultrasonic generator the driver circuit of a piezoelectric converter is provided with a switching regulator under control of a microcomputer, the pulse duty factor and frequency of the switching regulator being controlled in response to the converter's impedance which is detected by means of a measuring circuit.

    Abstract translation: 在超声波发生器中,压电转换器的驱动电路在微型计算机的控制下设置有开关调节器,响应于通过测量电路检测的转换器的阻抗来控制开关调节器的脉冲占空因数和频率 。

    Power supply
    107.
    发明授权
    Power supply 失效
    电源

    公开(公告)号:US4945898A

    公开(公告)日:1990-08-07

    申请号:US379573

    申请日:1989-07-12

    Abstract: A pulsed power supply for providing power to a piezoelectric crystal. The power supply provides power to the piezoelectric crystal causing contraction of the crystal. Upon reaching a predetermined degree of contraction, the electrical voltage form the power supply is removed from the piezoelectric crystal by creating a short-circuit between the power supply and the crystal. Removal of electrical voltage from the crystal causes the immediate expansion of the crystal and a resulting energy wave.

    Abstract translation: 用于向压电晶体提供功率的脉冲电源。 电源为压电晶体提供电力,导致晶体收缩。 在达到预定的收缩程度时,通过在电源和晶体之间产生短路,使形成电源的电压从压电晶体去除。 从晶体中去除电压会导致晶体的立即膨胀和产生的能量波。

    Variable frequency drive circuit
    108.
    发明授权
    Variable frequency drive circuit 失效
    变频驱动电路

    公开(公告)号:US4743789A

    公开(公告)日:1988-05-10

    申请号:US2732

    申请日:1987-01-12

    CPC classification number: H03B5/32 B06B1/0223 H03B11/10 B06B2201/55

    Abstract: An AC power system for a resonant load. A pair of switching networks and blocking networks are provided to drive the load for half a cycle in a resonant manner to a high energy state, and then maintained in that high energy state for a predetermined period. Then the load is driven for half a cycle in a resonant manner to the opposite polarity high energy state, and maintained in that high energy state for the predetermined period. A controller adjustably controls the frequency of switching between the two high energy states and the length of the predetermined period, so that a desired frequency is obtained.

    Abstract translation: 用于谐振负载的交流电源系统。 提供了一对开关网络和阻塞网络,以共振的方式将负载驱动半个周期到高能量状态,然后在该高能量状态下保持预定的时间段。 然后将负载以共振的方式驱动半个周期,达到相反极性的高能量状态,并在该高能量状态下保持预定时间段。 控制器可调节地控制两个高能态之间的切换频率和预定周期的长度,从而获得期望的频率。

    Excitation circuit for piezo-electric sound generators
    109.
    发明授权
    Excitation circuit for piezo-electric sound generators 失效
    压电声发生器励磁回路

    公开(公告)号:US4736192A

    公开(公告)日:1988-04-05

    申请号:US622127

    申请日:1984-06-19

    Inventor: Richard Angerer

    CPC classification number: G01N29/348 B06B1/0238 B06B2201/55

    Abstract: An excitation circuit wherein the energy of a charged coil is discharged via a sound generator. A coil and a capacitance of the sound generator are tuned to one another such that a corresponding oscillatory frequency is identical to a predetermined resonant frequency of the sound generator.

    Abstract translation: 励磁电路,其中充电线圈的能量经由声发生器放电。 声音发生器的线圈和电容彼此调谐,使得相应的振荡频率与声音发生器的预定谐振频率相同。

    Multiple tone signaling device
    110.
    发明授权
    Multiple tone signaling device 失效
    多音信号装置

    公开(公告)号:US4558305A

    公开(公告)日:1985-12-10

    申请号:US450965

    申请日:1982-12-20

    CPC classification number: G10K9/122 B06B1/0284 B06B2201/55

    Abstract: A multiple tone signaling device provides a piezoelectric transducer, first, second and third oscillator circuits, a first input terminal for enabling either or both of the first and second oscillator circuits, circuitry coupling the third oscillator circuit to the first and second oscillator circuits for disabling either the first or second oscillator circuits in response thereto, and a second input terminal coupled to the third oscillator circuit for allowing control of the output of said third oscillator circuit.

    Abstract translation: 多音调信号装置提供压电传感器,第一,第二和第三振荡器电路,用于使第一和第二振荡器电路中的任一个或两者起作用的第一输入端子,将第三振荡器电路耦合到第一和第二振荡器电路用于禁用 响应于第一或第二振荡器电路,以及耦合到第三振荡器电路的第二输入端子,用于允许控制所述第三振荡器电路的输出。

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