公开(公告)号：US20020147558A1

公开(公告)日：2002-10-10

申请号：US10002453

申请日：2001-11-01

Applicant: Robert Bosch Corporation

Inventor： Ralf Seip ,  Russell C. Watts

IPC: G06F019/00

CPC classification number: B60H1/00742 ,  B06B1/0215 ,  B06B2201/40 ,  B06B2201/51 ,  B06B2201/70 ,  B60H1/00735 ,  B60H1/00771 ,  B60H1/00814 ,  B60R21/01536 ,  B60W30/18054 ,  B60W40/09 ,  B60W2040/0818 ,  G01S7/52006 ,  G01S7/5205 ,  G01S7/521

Abstract: Method, apparatus and computer programs are described for compensating for the effect of temperature on the sensitivity of electrostatic ultrasound (US) transducers, particularly as used in an automotive occupancy sensing (AOS) systems for sensing the nature or type of occupant and the location of the occupant with respect to the vehicle interior. The invention permits the AOS to classify the occupancy state of the vehicle from a US echo signal substantially free of the effects of temperature on signal amplitude. A capacitive divider or voltage monitor is employed to measure the capacitance of the transducer. The voltage monitor output is used by the scaling algorithm of a compensator to determine the scaling factor to be applied to the US transducer signal to compensate for the effect of temperature on the transducer sensitivity. Calibration procedures and software are disclosed for determining the coefficients of the scaling algorithm to compensate for temperature effects and also to compensate for installation factors, transducer manufacturing variations, and circuit board effects. The system disclosed is useful for other types of signal processing in addition to temperature compensation of AOS ultrasonic signals, and may be used in other ranging devices such as cameras, golf or binocular range finders, and measuring devices and instruments.

Abstract translation: 描述了用于补偿温度对静电超声波（US）传感器的灵敏度的影响的方法，装置和计算机程序，特别是在用于感测乘员的性质或类型的汽车占用感测（AOS）系统中使用的位置以及 乘客相对于车辆内部。 本发明允许AOS从基本上不受温度对信号幅度的影响的美国回波信号分类车辆的占用状态。 采用电容分压器或电压监视器来测量传感器的电容。 电压监视器输出由补偿器的缩放算法使用，以确定应用于美国换能器信号的比例因子，以补偿温度对传感器灵敏度的影响。 公开了用于确定缩放算法的系数以补偿温度影响并且还补偿安装因素，换能器制造变化和电路板效应的校准程序和软件。 除了AOS超声波信号的温度补偿之外，所公开的系统对于其它类型的信号处理也是有用的，并且可以用于其他测距装置，例如相机，高尔夫或双目测距仪，以及测量装置和仪器。

公开(公告)号：US06314380B1

公开(公告)日：2001-11-06

申请号：US09325242

申请日：1999-06-03

Applicant: Ralf Seip ,  Russell C. Watts

Inventor： Ralf Seip ,  Russell C. Watts

IPC: G01K1500

CPC classification number: B60H1/00742 ,  B06B1/0215 ,  B06B2201/40 ,  B06B2201/51 ,  B06B2201/70 ,  B60H1/00735 ,  B60H1/00771 ,  B60H1/00814 ,  B60R21/01536 ,  B60W30/18054 ,  B60W40/09 ,  B60W2040/0818 ,  G01S7/52006 ,  G01S7/5205 ,  G01S7/521

Abstract: Method, apparatus and computer programs are described for compensating for the effect of temperature on the sensitivity of electrostatic ultrasound (US) transducers, particularly as used in an automotive occupancy sensing (AOS) systems for sensing the nature or type of occupant and the location of the occupant with respect to the vehicle interior. The invention permits the AOS to classify the occupancy state of the vehicle from a US echo signal substantially free of the effects of temperature on signal amplitude. A capacitive divider or voltage monitor is employed to measure the capacitance of the transducer. The voltage monitor output is used by the scaling algorithm of a compensator to determine the scaling factor to be applied to the US transducer signal to compensate for the effect of temperature on the transducer sensitivity. Calibration procedures and software are disclosed for determining the coefficients of the scaling algorithm to compensate for temperature effects and also to compensate for installation factors, transducer manufacturing variations, and circuit board effects. The system disclosed is useful for other types of signal processing in addition to temperature compensation of AOS ultrasonic signals, and may be used in other ranging devices such as cameras, golf or binocular range finders, and measuring devices and instruments.

Abstract translation: 描述了用于补偿温度对静电超声波（US）传感器的灵敏度的影响的方法，装置和计算机程序，特别是在用于感测乘员的性质或类型的汽车占用感测（AOS）系统中使用的位置以及 乘客相对于车辆内部。 本发明允许AOS从基本上不受温度对信号幅度的影响的美国回波信号分类车辆的占用状态。 采用电容分压器或电压监视器来测量传感器的电容。 电压监视器输出由补偿器的缩放算法使用，以确定应用于美国换能器信号的比例因子，以补偿温度对传感器灵敏度的影响。 公开了用于确定缩放算法的系数以补偿温度影响并且还补偿安装因素，换能器制造变化和电路板效应的校准程序和软件。 除了AOS超声波信号的温度补偿之外，所公开的系统对于其它类型的信号处理也是有用的，并且可以用于其他测距装置，例如相机，高尔夫或双目测距仪，以及测量装置和仪器。

公开(公告)号：US06255937B1

公开(公告)日：2001-07-03

申请号：US09446267

申请日：1999-12-20

Applicant: Toshihide Hamaguchi

Inventor： Toshihide Hamaguchi

IPC: G08B310

CPC classification number: B06B1/0215 ,  B06B2201/55 ,  B06B2201/70 ,  G10K9/12

Abstract: A notifying device adapted to give notification with both sound and vibration includes a notifying unit 2 which comprises a first vibrator drivable at an audio-frequency with a first drive signal for producing sound waves, and a second vibrator drivable with a second drive signal at a frequency, up to several hundred of hertz, lower than the driving frequency of the first vibrator for producing a perceivable vibration. A notifying signal generating circuit 5 is connected to the unit 2 via a switch 59. The circuit 5 comprises a sound signal generating circuit 57 for producing an intermittent first signal repeating on and off states with a predetermined period, a vibration signal generating circuit 58 for producing an intermittent second signal repeating on and off states with the same period as the first drive signal, and a synchronization circuit 56 for causing the respective circuits 57, 58 to produce the first drive signal and the second drive signal without any overlap between the on periods of these signals. This construction obviates marked increases in the power consumption of the device.

Abstract translation: 适于发出声音和振动通知的通知装置包括：通知单元2，其包括以音频驱动的第一振动器和用于产生声波的第一驱动信号;以及第二振动器，其具有第二驱动信号 频率高达几百赫兹，低于第一振动器的驱动频率以产生可感知的振动。 通知信号发生电路5经由开关59连接到单元2.电路5包括用于产生以预定周期重复开和关状态的间歇第一信号的声音信号发生电路57，用于 产生与第一驱动信号相同的周期的重复开启和关闭状态的间歇的第二信号;以及同步电路56，用于使各个电路57,58产生第一驱动信号和第二驱动信号， 这些信号的周期。 这种结构消除了设备功耗的显着增加。

公开(公告)号：US5635619A

公开(公告)日：1997-06-03

申请号：US273725

申请日：1994-07-12

Applicant: Satish S. Udpa ,  Srivatsa Vasudevan

Inventor： Satish S. Udpa ,  Srivatsa Vasudevan

IPC: B06B1/02 ,  G01L25/00 ,  G01L27/00

CPC classification number: B06B1/0215 ,  B06B1/0284 ,  B06B2201/40 ,  B06B2201/70 ,  Y10S73/01

Abstract: A method and apparatus for electronically driving an ultrasonic acoustic transducer. The transducer is operable in two modes; in a first mode, the lock-in frequency of the transducer is determined; in a second mode, the lock-in frequency determined in the first mode is used to modulate a tone-burst pulse to drive the transducer in an efficient manner. Operating in the first mode, the lock-in frequency is determined by exciting the transducer with a series of tone bursts, where each tone burst comprises an electronic pulse modulated by a tone of one frequency selected from a range of frequencies, and measuring the response of the transducer to each tone burst. In an alternative embodiment, the excitation of the transducer in the first mode is provided by a signal whose frequency is swept over a range. The response of the transducer is sampled at various times during the sweep. The lock-in frequency is chosen by examining the responses and choosing the frequency which gives the best response. Operating in the second mode, the transducer is driven with an electronic tone burst generated by modulating said an electronic pulse with a tone of the determined lock-in frequency.

Abstract translation: 一种用于电子驱动超声波换能器的方法和装置。 传感器可在两种模式下操作; 在第一模式中，确定换能器的锁定频率; 在第二模式中，使用在第一模式中确定的锁定频率来调制色调脉冲以有效地驱动换能器。 在第一模式中操作，锁定频率通过用一系列音调脉冲激发换能器来确定，其中每个音调包括由从频率范围中选择的一种频率的音调调制的电子脉冲，以及测量响应 的传感器到每个音调突发。 在替代实施例中，在第一模式中的换能器的激励由频率被扫过范围的信号提供。 在扫描过程中不同时间对传感器的响应进行采样。 通过检查响应并选择给出最佳响应的频率来选择锁定频率。 在第二模式下操作，换能器通过用所确定的锁定频率的音调调制所述电子脉冲而产生的电子音调脉冲来驱动。

公开(公告)号：US5303591A

公开(公告)日：1994-04-19

申请号：US694730

申请日：1991-05-02

Applicant: Edward R. Dykes ,  William F. Splichal, Jr.

Inventor： Edward R. Dykes ,  William F. Splichal, Jr.

IPC: G01N29/44 ,  B06B1/02 ,  G01N29/06 ,  G01N29/22 ,  G01N29/34 ,  G01N29/36 ,  G21C17/003 ,  G01N29/04

CPC classification number: G01N29/36 ,  B06B1/0215 ,  G01N29/0609 ,  G01N29/22 ,  G01N29/34 ,  B06B2201/70 ,  G01N2291/2675

Abstract: The remote inspection of seam welds in reactor vessels is improved through the utilization of a pulser network which is inductively isolated from the transducer circuit to which it applies an excitation signal. Through the utilization of a step-up transformer, the pulser network may perform in conjunction with linear d.c. power supplies of lower voltage rating. The inductive coupling between circuits also serves to provide for the positive communication off of switching devices such as SCRs employed for excitation signal triggering. To avoid ground path induced noise, a different ground path is employed for the pulser network as for the transducer circuit. The transducer circuit ground path is that associated with a manipulator and, for example, a reactor vessel itself. Thus, the transducers employed may come in contact with the surface of the vessel being inspected. In similar fashion, an inductive coupling is provided between the transducer circuit and a pre-amplfying receiver circuit. This same inductive coupling may be employed to enhance the impedance match between the FET-based amplification stage and the impedance defining components of the transducer circuit.

Abstract translation: 通过利用与其施加激励信号的换能器电路感应隔离的脉冲发生器网络来改善反应堆容器中的缝焊的远程检查。 通过利用升压变压器，脉冲发生器网络可以与线性直流电路一起执行。 低电压额定值的电源。 电路之间的电感耦合还用于提供诸如用于激励信号触发的SCR之类的开关器件的正向通信。 为了避免接地路径引起的噪声，对脉冲发生器网络使用与换能器电路不同的接地路径。 换能器电路接地路径与机械手相关联，例如反应堆容器本身。 因此，所使用的换能器可以与被检查的容器的表面接触。 以类似的方式，在换能器电路和预放大接收器电路之间提供电感耦合。 可以采用相同的电感耦合来增强基于FET的放大级与限定换能器电路的阻抗的阻抗匹配。

公开(公告)号：US4382251A

公开(公告)日：1983-05-03

申请号：US189759

申请日：1980-09-23

Applicant: Hidetaka Fujisawa

Inventor： Hidetaka Fujisawa

IPC: B06B1/02 ,  G08B3/10 ,  G08B3/00 ,  H01L41/10

CPC classification number: G08B3/10 ,  B06B1/0215 ,  B06B2201/55 ,  B06B2201/70 ,  Y10S84/24

Abstract: An envelope control device for the piezoelectric buzzer of the invention applies voltages changing with time to both surfaces of a sound generator for push-pull operation for generating an electric tone. The sound generator comprises an oscillating plate with a piezoelectric element attached thereto, and in response to a tone signal outputted from a tone signal generating circuit, it generates an electric tone. By the push-pull operations, an envelope is applied to the electric tone generated.

Abstract translation: 本发明的压电蜂鸣器的包络控制装置将随时间变化的电压施加到用于产生电调的推挽操作的声发生器的两个表面。 声音发生器包括具有附接到其上的压电元件的振荡板，并且响应于从音调信号发生电路输出的音调信号，其产生电调。 通过推挽操作，将一个信封应用于所产生的电调。

公开(公告)号：US4129668A

公开(公告)日：1978-12-12

申请号：US785790

申请日：1977-04-08

Applicant: Georges Rouquie

Inventor： Georges Rouquie

IPC: C23C2/00 ,  B01D43/00 ,  B06B1/02 ,  C23C2/06 ,  C23C2/14 ,  G10K11/00 ,  C23C1/02

CPC classification number: G10K11/004 ,  B01D43/00 ,  B06B1/0276 ,  C23C2/14 ,  B06B2201/70

Abstract: A method of draining parts emerging from hot galvanizing baths using a range of vibration excitation frequencies capable of covering the fundamental frequencies of the parts to be drained. Three different methods are disclosed. According to a first method the vibrations are obtaining by exciting with a narrow band white noise the support for the parts to be drained. According to a second method, the vibrations are produced from a single exciter fed with narrow band white noise and energizing vibrators through the medium of amplifiers. According to a third method, the vibrations are produced by a number of small vibrators each of which furnishes one of the frequencies of the chosen spectrum, whereby said vibrators jointly synthesize the narrow band white noise. Three different means are disclosed for producing vibrations, one where the vibrators are mounted on a false lifting beam, the second where the vibrators are mounted on the lifting beam, and the third where the vibrators are enclosed in a container placed between the lifting beam and the hoisting means.

Abstract translation: 使用能够覆盖要排出的部件的基本频率的振动激发频率的范围来排出从热镀锌浴出现的部件的方法。 公开了三种不同的方法。 根据第一种方法，通过用窄带白噪声激励来获得振动，以便对待排出的部件的支撑。 根据第二种方法，通过放大器的介质，从馈送有窄带白噪声的单个激励器和激励振动器产生振动。 根据第三种方法，由许多小型振动器产生振动，每个振动器提供所选频谱的一个频率，由此所述振动器共同地合成窄带白噪声。 公开了用于产生振动的三种不同的装置，其中振动器安装在假提升梁上，其中振动器安装在提升梁上，第二个振动器被封闭在放置在提升梁和 提升装置。

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

IPC: B06B1/02 ,  H03B5/24 ,  H03G1/02 ,  H03J9/04 ,  H03K4/06 ,  G08B3/00

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.

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

IPC: B06B1/02 ,  H03B5/24 ,  H03B5/20

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。

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

IPC: B06B1/02 ,  H01L41/08

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。