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    System for selectably pulsing ultrasonic transducers in a test apparatus
    91.
    发明授权
    System for selectably pulsing ultrasonic transducers in a test apparatus 失效
    用于在测试装置中可选地脉冲超声换能器的系统

    公开(公告)号：US4229978A

    公开(公告)日：1980-10-28

    申请号：US947482

    申请日：1978-10-02

    Applicant: Howard A. Sholl ,  John T. Marshall

    Inventor： Howard A. Sholl ,  John T. Marshall

    IPC: B06B1/02 ,  G01N29/24 ,  G01N29/26 ,  G01S7/52 ,  G10K11/34 ,  G01N29/00

    CPC classification number: B06B1/0215 ,  G01N29/2493 ,  G01N29/26 ,  G01S7/52004 ,  G10K11/341 ,  B06B2201/20 ,  B06B2201/70 ,  G01N2291/2623

    Abstract: A system for selectably electrically pulsing each of a plurality of ultrasonic transducers in a testing apparatus in rapid sequence to produce a pattern of ultrasonic energy transmitted into and subsequently received from a test piece comprises a plurality of transducer pulsing circuits, each connected to a different associated one of the transducers. Each pulsing circuit includes a silicon control rectifier connected to ground and a capacitor, connected between the rectifier and the associated transducer, that is dischargeable to pulse the associated tranducer. The rectifier is switchable to an "on" condition to rapidly discharge the capacitor to ground. The rectifier maintains the "on" condition until current conducted through it drops below a characteristic holding current and thereafter switches to an "off" condition. A two-state regulated voltage source is connected to the junction between the rectifier and the capacitor in each of the pulsing circuits to provide a proper charging source for the capacitor. The regulated voltage source is maintained in a high-impedance, voltage-source state designed to maintain an existing capacitor charge in spite of device leakage currents while maintaining a current level less than the rectifier holding current. Individual capacitors are isolated by a diode "and" network in the charging current path. A quick recharge, current-source state is established to recharge the capacitors at a controlled rate to a regulated voltage level. When the desired voltage is reached, the regulated voltage source reverts to its voltage-source state to maintain the voltage until the next such cycle of operation.

    Abstract translation: 一种用于可选择地电气脉冲测试装置中的多个超声波换能器中的每一个的系统，以快速顺序产生传输到测试件并随后从测试件接收的超声能量的图案，其包括多个换能器脉冲电路，每个连接到不同的相关联 其中一个换能器。 每个脉冲电路包括连接到地的硅控制整流器和连接在整流器和相关联的换能器之间的电容器，其可放电以脉冲相关联的传感器。 整流器可切换到“开”状态，以将电容器快速放电到地。 整流器保持“接通”状态，直到通过它的电流下降到特性保持电流以下，然后切换到“关闭”状态。 两个状态调节电压源连接到每个脉冲电路中的整流器和电容器之间的接点，为电容器提供适当的充电源。 调节电压源保持在高阻抗电压源状态，设计用于保持现有的电容器电荷，尽管存在器件泄漏电流，同时保持电流水平低于整流器保持电流。 单个电容器通过二极管“和”充电电流路径中的网络隔离。 建立快速充电，电流源状态，以可控速率将电容器充电至稳压电平。 当达到所需的电压时，调节电压源恢复到其电压源状态，以维持电压，直到下一个这样的操作循环。

    Vehicular signal apparatus
    92.
    发明授权
    Vehicular signal apparatus 失效
    车载信号装置

    公开(公告)号：US4219799A

    公开(公告)日：1980-08-26

    申请号：US954178

    申请日：1978-10-24

    Applicant: Harold J. Weber

    Inventor： Harold J. Weber

    IPC: B06B1/02 ,  B60Q5/00 ,  G08B3/10 ,  G08B3/00

    CPC classification number: B60Q5/00 ,  B06B1/0223 ,  G08B3/10 ,  B06B2201/70

    Abstract: My invention teaches a vehicular signal apparatus, in particular a motor vehicle horn system, which has two successive loudness levels of operation. The first loudness level is a moderate level used as a brief "toot" to give a quick alert, as in pedestrian traffic or the like. The second loudness level is a commanding level used as a blast, as for example, in an emergency maneuver in heavy traffic. Operation is automatic, in the sense that a brief operator activation of the horn signal switch will result only in the activation of the moderate level horn, whereas operation of the blast horn is delayed such that continuous operator activation of the horn signal switch will cause the blast horn to blow within about a second after horn switch contact is made.

    Abstract translation: 我的发明教导了一种车辆信号装置，特别是机动车喇叭系统，其具有两个连续的响度水平的操作。 第一个响度级别是一个适度的水平，用作一个简短的“嘟嘟”，以提供快速警报，如行人交通等。 第二个响度级别是用作爆炸的命令级别，例如在交通繁忙的紧急情况下。 操作是自动的，在一个意义上说，喇叭信号开关的简单操作者激活将仅导致中等电平喇叭的激活，而爆震喇叭的操作被延迟，使得喇叭信号开关的连续的操作者激活将导致 喇叭喇叭在喇叭开关接触后约一秒钟内吹气。

    Ultrasonic transmitter for the remote control of radio and television receivers
    93.
    发明授权
    Ultrasonic transmitter for the remote control of radio and television receivers 失效
    用于遥控无线电和电视接收机的超声波发射器

    公开(公告)号：US3938142A

    公开(公告)日：1976-02-10

    申请号：US474455

    申请日：1974-05-29

    Applicant: Wolfgang Schroder

    Inventor： Wolfgang Schroder

    IPC: B06B1/02 ,  H03B5/36 ,  H03J9/04 ,  G08B3/00

    CPC classification number: B06B1/0269 ,  H03B5/366 ,  H03J9/04 ,  B06B2201/70

    Abstract: A polarizing D.C. voltage is generated at the capacitance of the ultrasonic transducer and then short-circuited by a parallel-arranged electronic switch controlled by the command signal frequency to be radiated. A direct current stored in an inductance during this short-circuit phase is supplied via a decoupling diode to the electrodes of the ultrasonic transducer upon opening of the switch, and after having been transformed into a voltage. The polarizing D.C. voltage is thus re-generated periodically.

    Abstract translation: 在超声波换能器的电容下产生极化D.C.电压，然后由被放射的指令信号频率控制的并联布置的电子开关短路。 在该短路相位期间存储在电感中的直流电通过去耦二极管被提供给超声波换能器的电极，并且在转换成电压之后。 因此，极化的直流电压被周期性重新产生。

    FLUID DEVICE
    95.
    发明公开
    FLUID DEVICE 审中-公开

    公开(公告)号：US20240278155A1

    公开(公告)日：2024-08-22

    申请号：US18443341

    申请日：2024-02-16

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Chikara KOJIMA ,  Yoshio ARAI ,  Keita KUBO ,  Hiroto TOMIOKA

    IPC: B01D43/00 ,  B06B1/02

    CPC classification number: B01D43/00 ,  B06B1/023 ,  B06B2201/55 ,  B06B2201/70

    Abstract: A fluid device includes a chamber that is provided with an inlet and an outlet opened at different positions on an X axis and is formed with a flow path space in which a fluid is caused to flow from the inlet to the outlet, a first ultrasonic element configured to generate a standing wave in a direction along an X axis in the fluid in the chamber, a driver configured to drive the first ultrasonic element, and a drive controller configured to control the driver such that a drive voltage applied to the first ultrasonic element is reduced over time.

    METHODS AND APPARATUS OF POWER REGULATION FOR A TRANSDUCER
    98.
    发明公开
    METHODS AND APPARATUS OF POWER REGULATION FOR A TRANSDUCER 审中-公开

    公开(公告)号：US20240017292A1

    公开(公告)日：2024-01-18

    申请号：US17865710

    申请日：2022-07-15

    Applicant: Texas Instruments Incorporated

    Inventor： David Magee ,  James Griffin ,  Felipe Garza, III

    IPC: B06B1/02 ,  G02B27/00 ,  B08B7/02 ,  B08B13/00

    CPC classification number: B06B1/0215 ,  G02B27/0006 ,  B08B7/028 ,  B08B13/00 ,  B06B2201/70

    Abstract: An example apparatus operable to provide power to a transducer via a regulator output, the power regulator comprising: filter circuitry including a filter input and a filter output, the filter output coupled to the regulator output; amplifier circuitry including an amplifier input and an amplifier output, the amplifier output coupled to the filter input; sensing circuitry including a sensing input and a sensing output, the sensing input coupled to the filter output and the regulator output; and a controller including a controller input coupled to the sensing output and including a controller output coupled to the amplifier input, the controller configured to: supply an excitation signal to the amplifier circuitry to cause the amplifier circuitry to supply the power based on the excitation signal; estimate a magnitude of the power based on measurements of current and voltage at the filter output.

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