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公开(公告)号：US5001649A
公开(公告)日：1991-03-19
申请号：US245837
申请日：1988-09-16
Applicant: Ying-Ching Lo , Samuel Zambre , Tolentino Escorcio
Inventor： Ying-Ching Lo , Samuel Zambre , Tolentino Escorcio
CPC classification number: B06B1/0207 , A61F9/00745 , B06B1/0253 , A61B18/1206 , A61B2017/00017 , A61B2017/00084 , B06B2201/40 , B06B2201/55
Abstract: There is disclosed herein a driver system for an ultrasonic probe for allowing a user to have proportional control of the power dissipated in the probe in accordance with the position of power dissipation controls operable by the user and for automatically tuning upon user request such that the driving frequency is equal to the mechanical resonant frequency of said probe and such that the reactive component of the load impedance represented by said probe is tuned out. The system uses a tunable inductor in series with the piezoelectric crystal excitation transducer in the probe which has a flux modulation coil. The bias current through this flux modulation coil is controlled by the system. It is controlled such that the inductance of the tunable inductor cancels out the capacitive reactance of the load impedance presented by the probe when the probe is being driven by a driving signal which matches the mechanical resonance frequency of the probe. The resulting overall load impedance is substantially purely resistive. The system measures the phase angle and monitors the load current. This information is used to determine the mechanical resonance frequency by sweeping through a band of driving frequencies and finding the peak load current where the slope of the load current versus frequency function is greater than a predetermined constant. After the automatic tuning to the resonant frequency, the system automatically adjusts the bias current flowing through the flux modulation coil to maintain the substantially purely resistive load impedance for changing power levels. There is also disclosed herein an analog circuit to measure the Phase angle for the load driving signal and to adjust the frequency of the driving signal for best performance. This system includes an integrator to eliminate the effect of offset errors caused by operational amplifiers.
Abstract translation: 这里公开了一种用于超声波探头的驱动器系统，用于允许用户根据用户可操作的功率耗散控制的位置来对探头中消耗的功率进行成比例的控制，并且根据用户请求自动调整，使得驾驶 频率等于所述探针的机械谐振频率，并且使得由所述探针表示的负载阻抗的无功分量被调谐。 该系统使用可调电感器与探头中的压电晶体激发传感器串联，该探头具有通量调制线圈。 通过该通量调制线圈的偏置电流由系统控制。 它被控制使得当探针由与探针的机械共振频率匹配的驱动信号驱动时，可调谐电感器的电感抵消由探头呈现的负载阻抗的容抗。 所得到的总负载阻抗基本上是纯电阻的。 该系统测量相位角并监测负载电流。 该信息用于通过扫描驱动频率带来确定负载电流对频率函数的斜率大于预定常数的峰值负载电流来确定机械谐振频率。 在自动调谐到谐振频率之后，系统自动调整流经通量调制线圈的偏置电流，以保持用于改变功率电平的基本上纯电阻的负载阻抗。 这里还公开了用于测量负载驱动信号的相位角的模拟电路，并且为了获得最佳性能来调整驱动信号的频率。 该系统包括一个积分器，以消除由运算放大器引起的偏移误差的影响。
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公开(公告)号：US4032891A
公开(公告)日：1977-06-28
申请号：US719761
申请日：1976-09-02
Applicant: Robert R. Podowski
Inventor： Robert R. Podowski
CPC classification number: H03G1/02 , B06B1/0269 , H03B5/24 , H03J9/04 , H03K4/06 , B06B2201/40 , B06B2201/55 , B06B2201/70
Abstract: A battery powered portable acoustic transmitter comprises a plurality of single-pole, momentary contact switches, a type 555 pulse producing integrated circuit chip, and an electroacoustic transducer and matching tuning coil. An RC timing circuit includes a plurality of resistors selectively connectable in the timing circuit by the switches to vary the pulse output frequency. A transistor output circuit amplifies the pulses for driving the transducer. A plurality of diodes supply power to the chip and the transistor output circuit whenever a switch is activated. The integrated circuit chip, resistors, diodes and transistor are part of an active thick film circuit.
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公开(公告)号：US4021756A
公开(公告)日：1977-05-03
申请号：US592582
申请日：1975-07-02
Applicant: Robert R. Podowski , Richard W. Citta
Inventor： Robert R. Podowski , Richard W. Citta
CPC classification number: H03B5/24 , B06B2201/40 , B06B2201/55 , B06B2201/70
Abstract: An electronic remote control transmitter employs a two transistor cascade oscillator having positive and negative feedback loops. The oscillator voltage is supplied through a switch assembly containing a plurality of momentary contact switches to a pair of voltage dividers supplying signal voltages in predetermined ratios to a two branch circuit in the negative feedback loop. One branch contains an inductor and the second branch a capacitor. Closure of any switch completes the DC circuits for the transistors. Signal voltage is supplied to the branches to produce a minimum amplitude, zero phase shift condition which establishes oscillation at that predetermined frequency. The output of the oscillator is amplified by a third transistor and supplied to an ultrasonic transducer for generating acoustical control signals.
Abstract translation: 电子遥控发射机采用具有正和负反馈环路的双晶体管级联振荡器。 振荡器电压通过包含多个瞬时接触开关的开关组件提供给一对分压器，该负载反馈回路中的两个分支电路以预定比例提供信号电压。 一个分支包含一个电感器，第二个分支包含一个电容器。 任何开关的闭合都会完成晶体管的直流电路。 信号电压被提供给分支以产生以该预定频率建立振荡的最小振幅零相移条件。 振荡器的输出由第三晶体管放大并提供给用于产生声控信号的超声换能器。
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公开(公告)号：US4012647A
公开(公告)日：1977-03-15
申请号：US601046
申请日：1975-08-01
Applicant: Lewis Balamuth , Arthur Kuris , Manuel Karatjas
Inventor： Lewis Balamuth , Arthur Kuris , Manuel Karatjas
CPC classification number: B06B1/0261 , B06B2201/40 , B06B2201/55 , B06B2201/70
Abstract: The invention discloses various embodiments of an ultrasonic motor and converter adapted to be used in home or industrial ultrasonic devices. The ultrasonic motor is generally of a piezoelectric material having a removable tip or of a design in which the complete motor is contained in a housing, which housing has electrical contact means adapted to be plugged into an adapter which, in turn, is connected to a converter. The motor is designed such that frequency sensing means is provided therein and the feedback signal is utilized by the converter to adjust itself thereto. The converter includes tuned circuit means tuned to a band including a desired frequency for sustaining the vibration of said motor at the desired frequency.
Abstract translation: 本发明公开了适用于家用或工业超声波装置的超声波马达和转换器的各种实施例。 超声波马达通常是具有可拆卸顶端或其中整个马达被容纳在壳体中的设计的压电材料，该壳体具有适于插入适配器的电接触装置，该适配器又连接到 转换器。 电动机被设计成使得频率感测装置在其中被提供，并且反馈信号被转换器利用来调节其自身。 该转换器包括被调谐到包括期望频率的频带的调谐电路装置，用于以期望的频率维持所述电动机的振动。
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65.发明授权
公开(公告)号：US3921015A
公开(公告)日：1975-11-18
申请号：US49391274
申请日：1974-08-01
Applicant: BRANSON ULTRASONICS CORP
Inventor： OBEDA EDWARD G , KRAMER GEORGE C
CPC classification number: H02H9/04 , B06B1/0238 , B06B1/0618 , B06B2201/40 , B06B2201/55 , B06B2201/72
Abstract: This invention refers to a means for providing high voltage transient protection to piezoelectric wafers used in ultrasonic converters. The means is particularly useful in converters used for ultrasonic insertion applications.
Abstract translation: 本发明涉及一种用于向超声波转换器中使用的压电晶片提供高压瞬变保护的装置。 该方法在用于超声波插入应用的转换器中特别有用。
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Patent Agency Ranking
公开(公告)号：US3736523A
公开(公告)日：1973-05-29
申请号：US3736523D
申请日：1972-07-31
Applicant: BRANSON INSTR
Inventor： PUSKAS W
CPC classification number: B06B1/0253 , B06B2201/40
Abstract: A failure detection circuit for a power oscillator driven by a set of transistors which are switched to provide a square wave drive voltage to the oscillator comprises a narrow band pass filter and a voltage sensitive means. The band pass filter is coupled for receiving the square wave voltage and permits the passage of a predetermined odd-harmonic signal to the voltage sensitive means. The amplitude appearing at the voltage sensitive means, such as a lamp, is indicative of the operation of the oscillator.
Abstract translation: 由切换为向振荡器提供方波驱动电压的一组晶体管驱动的功率振荡器的故障检测电路包括窄带通滤波器和电压敏感装置。 耦合带通滤波器以接收方波电压并允许将预定的奇次谐波信号通过电压敏感装置。 出现在诸如灯之类的电压敏感装置处的幅度表示振荡器的操作。
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67.发明授权公开(公告)号：US12109589B2
公开(公告)日：2024-10-08
申请号：US17616260
申请日：2020-06-22
Applicant: DMG MORI Ultrasonic Lasertec GmbH
Inventor： Heiko Marx , Phillip Goebel , Fabian Franzmann
CPC classification number: B06B1/0253 , B23B37/00 , B23Q17/0971 , B06B2201/40 , B06B2201/73 , B23Q2717/006
Abstract: The present invention relates to a method and a device for controlling an ultrasound tool unit for machining a workpiece on a machine tool. For this, a plurality of parameter sets are stored on a storage device of a control device of the machine tool. When controlling an ultrasound transducer of the ultrasound tool unit received on a work spindle of the machine tool on the basis of a sensor signal input into a controller by means of a generator operated by the controller, on the basis of a first parameter set, which is associated with the ultrasound tool unit and sets the operation of the controller, an operating setting of the controller is switched by changing the first parameter set setting the operation of the controller on the basis of a second parameter set, which is associated with the ultrasound tool unit, of the plurality of parameter sets stored on the storage device.
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公开(公告)号：US20240264703A1
公开(公告)日：2024-08-08
申请号：US18164152
申请日：2023-02-03
Applicant: Infineon Technologies AG
Inventor： Emanuel STOICESCU , Erhard LANDGRAF
CPC classification number: G06F3/0433 , B06B3/04 , G06F3/0418 , B06B2201/40
Abstract: An ultrasonic touch sensor includes a touch structure configured to receive a touch; a transmitter arrangement configured to transmit one or more ultrasonic transmit waves toward the touch structure; a receiver arrangement configured to receive ultrasonic reflected waves produced by reflections of the one or more ultrasonic transmit waves and generate a plurality of measurement signals representative of the ultrasonic reflected waves; and a measurement circuit configured to measure a degree of variation of a plurality of measurement signals, compare the degree of variation with a detection threshold, and determine whether a no-touch event or a touch event has occurred at the touch structure based on whether the degree of variation satisfies the detection threshold.
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公开(公告)号：US12017251B2
公开(公告)日：2024-06-25
申请号：US16770473
申请日：2018-12-04
Applicant: Stryker Corporation
Inventor： Adam Darwin Downey , Patrick Cobler , Scott Rhodes
CPC classification number: B06B1/0253 , A61B17/320068 , B06B1/0246 , A61B2017/00119 , A61B2017/00199 , B06B2201/40 , B06B2201/55 , B06B2201/76
Abstract: Control consoles and methods for supplying a drive signal to a surgical tool are provided. The control console comprises a transformer with primary and secondary windings. The primary winding receives an input signal from a power source and induces the drive signal in the secondary winding to supply the drive signal to the surgical tool. A first current source comprising a leakage control winding is coupled to a path of the drive signal. The primary winding induces a first cancellation current in the leakage control winding to inject into the path of the drive signal to cancel leakage current. A sensor coupled to the path of the drive signal outputs a sensed signal to provide feedback related to leakage current. The sensor may connect to a second leakage current cancellation source and/or a fault detection stage. The power source may be variable and may also energize the second current source.
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公开(公告)号：US20240196514A1
公开(公告)日：2024-06-13
申请号：US18438554
申请日：2024-02-12
Applicant: Sofwave Medical Ltd.
Inventor： Ariel SVERDLIK , Erez PANIR
CPC classification number: H05K1/0204 , B06B1/00 , H05K1/0209 , H05K1/021 , B06B2201/40
Abstract: An assembly including:
a printed circuit board (PCB) having a first surface and a second surface;
at least one energy transmitter mounted on the first surface;
at least one cooling element associated with the PCB second surface, wherein the cooling element is configured to cool the at least one energy transmitter via the PCB.
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