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    • 1. 发明申请
    • A SONAR DISTANCE SENSING APPARATUS
    • SONAR距离传感装置
    • WO1981002472A1
    • 1981-09-03
    • PCT/GB1981000025
    • 1981-02-23
    • SONIC TAPE LTDCZAJKOWSKI S
    • SONIC TAPE LTD
    • G01S15/14
    • G01S15/14G01S7/529Y10S367/90
    • A distance sensing apparatus is provided in the form of a case housing electronic equipment including a piezoelectric transducer for radiating pulsed sonic or ultrasonic signals along a measurement path through a sound horn (3) which creates a narrow beam. Reflected signals received back through the horn are received by the transducer and converted into electric measurement signals. A time measurement device is provided for determining the time lapse between radiation of a pulse and receipt of a reflected signal so as to provide a distance signal which will be representative of the path distance between the apparatus and the surface which will trigger a display (7) to give a distance reading. An important feature of the apparatus is that the electronic circuitry will include an amplifier which will increase the amplification of the electrical signals carried by a reflected pulse as a function of time lapsed from the radiation of a measurement signal pulse so as to compensate for the attenuation of the received signal.
    • 一种距离感测装置以容纳电子设备的形式提供,包括用于通过产生窄波束的声音喇叭(3)沿着测量路径辐射脉冲声波或超声波信号的压电换能器。 通过喇叭接收的反射信号由传感器接收并转换成电测量信号。 提供了一种时间测量装置,用于确定脉冲辐射与反射信号的接收之间的时间间隔,以便提供将代表将触发显示器的装置与表面之间的路径距离的距离信号(7 )给出距离读数。 该装置的一个重要特征是电子电路将包括放大器,该放大器将增加由反射脉冲携带的电信号的放大,作为从测量信号脉冲的辐射所消耗的时间的函数,以补偿衰减 的接收信号。
    • 4. 发明公开
    • High resolution acoustic echo ranging system
    • Akustisches Echoentfernungsmesssystem mit hoherAuflösung。
    • EP0593188A2
    • 1994-04-20
    • EP93307862.8
    • 1993-10-04
    • MILLTRONICS LTD.
    • Panton, Stanley
    • G01S15/10G01S7/52G01S15/14
    • G01S7/524G01S15/102Y10S367/90
    • The uncertainty inherent in high-resolution acoustic pulse-echo distance measuring systems which depend on threshold detection is overcome by transmitting a multi-cycle shot of acoustic energy having a sharply peaked amplitude profile, and locating the peak amplitude of a received echo. The peaked amplitude is achieved by timing the duration of energization of a transducer (8) producing the shot so that energization is terminated before the amplitude of oscillation of the transducer has reached a maximum. This produces a shot which has a definite largest cycle, which should in turn produce an echo having a definite largest cycle.
    • 依赖于阈值检测的高分辨率声脉冲回波距离测量系统固有的不确定性是通过传输具有尖峰振幅分布的声能的多循环镜头,以及定位接收回波的峰值幅度来克服的。 峰值振幅通过定时产生镜头的换能器(8)的通电持续时间来实现,使得在换能器的振荡幅度达到最大值之前终止通电。 这产生具有确定最大周期的射击,其应该产生具有确定最大循环的回波。
    • 6. 发明专利
    • Obstacle detection device
    • 障碍物检测装置
    • JP2007333609A
    • 2007-12-27
    • JP2006166959
    • 2006-06-16
    • Denso Corp株式会社デンソー
    • HARADA TAKEHITOSATO YOSHIHISA
    • G01S15/93B60R21/00
    • G01S15/931G01S7/527G01S7/529G01S15/87G01S2015/938Y10S367/90Y10S367/909
    • PROBLEM TO BE SOLVED: To make a detection distance of an obstacle in ultrasonic sonar equally constant from a vehicle.
      SOLUTION: In comparing a threshold used for determining existence of the obstacle and a signal obtained by amplifying the reception wave by the prescribed gain, the gain in amplifying the signal received by a microphone 7 is higher when the ultrasonic sonar 2 is in a mode for only receiving the reception wave than when the ultrasonic sonar 2 is in a wave transmission/receipt mode. Thereby, the obstacle detection sensitivity of the ultrasonic sonar 2 becomes high. In a joint position of continuous sound regions of the adjacent ultrasonic sonar, the continuous sound region of the ultrasonic sonar 2 only receiving the receipt wave is extended, and a boundary of the continuous sound region can be in the constant distance from the vehicle.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:使超声波声纳中的障碍物的检测距离等于车辆的常数。 解决方案:在将用于确定障碍物的存在的阈值与通过将接收波放大到规定的增益而获得的信号进行比较时,当超声波声纳2处于 与超声波声纳2处于波发送接收模式时相比,仅接收接收波的模式。 由此,超声波声纳2的障碍物检测灵敏度变高。 在相邻超声波声纳的连续声音区域的联合位置中,仅接收接收波的超声波声纳2的连续声音区域延伸,并且连续声音区域的边界可以距车辆恒定的距离。 版权所有(C)2008,JPO&INPIT
    • 8. 发明公开
    • Dynamic control circuit for multichannel system
    • 多通道系统动态控制电路
    • EP0451322A3
    • 1992-07-08
    • EP90115817.0
    • 1990-08-17
    • Hewlett-Packard Company
    • Lipschutz, David
    • H01Q3/28H01Q23/00G01S15/89G10K11/34
    • H01Q3/28H01Q23/00Y10S367/90
    • This invention provides an improved circuit for dynamically controlling a predetermined characteristic of each input channel of a system having a plurality of input channels to achieve a desired characteristic profile with predetermined time variances in channel aperture size and/or focal point depth. More particularly, the invention dynamically controls the gain of each input channel to maintain a desired apodization profile. A plurality of basic time varying functions are generated, such functions being, for example, a constant, a ramp, a parabola, an exponential or the like, and at least selected ones of the basic functions are combined by appropritely weighting the functions and adding the weighted functions to obtain a desired control signal. The control signal which has the desired dynamic gain characteristic for the given channel is then applied to control a gain-controllable amplifier for such channel. The number of combining elements may be reduced by providing such combining elements for only a selected number of spaced channels and by linearly interpolating the signals obtained from such combining elements for each pair of spaced channels to obtain control signals to control gain for channels between each pair of spaced channels. System gain may also be controlled by a signal generated by combining at least selected ones of the basic functions through weighting and adding.
    • 10. 发明公开
    • A SONAR DISTANCE SENSING APPARATUS
    • SONAR-VORRICHTUNG ZUR ABSTANDSMESSUNG。
    • EP0045763A1
    • 1982-02-17
    • EP81900438.0
    • 1981-02-23
    • SONIC TAPE PUBLIC LIMITED COMPANY
    • CZAJKOWSKI, Stanislaw Boleslaw
    • G01S7G01S15
    • G01S15/14G01S7/529Y10S367/90
    • Un appareil de mesure de distance est concu sous la forme d'un boitier dans lequel est loge un materiel electronique comprenant un transducteur piezoelectrique pour l'emission de signaux ultrasoniques ou soniques pulses le long d'un trajet de mesure par l'intermediaire d'un cornet (3) qui cree un faisceau etroit. Les signaux reflechis renvoyes par l'intermediaire du cornet sont recus par le transducteur et convertis en signaux electriques de mesure. Un dispositif de mesure du temps est prevu pour determiner le laps de temps entre l'emission d'une impulsion et la reception d'un signal reflechi de maniere a produire un signal de distance qui represente la distance du chemin entre l'appareil et la surface qui declenchera un affichage (7) pour donner une lecture de distance. Le circuit electronique de l'appareil est une caracteristique importante car il comprend un amplificateur qui augmente l'amplification des signaux electriques portes par une impulsion reflechie en fonction du temps ecoule a partir de la radiation de l'impulsion du signal de mesure de maniere a compenser l'attenuation du signal recu.
    • PCT No.PCT / GB81 / 00025 Sec。 371日期1981年10月20日 102(e)日期1981年10月20日PCT提交1981年2月23日PCT公布。 出版物WO81 / 02472 日期:1981年9月3日。一种距离感测装置的形式是壳体电子设备的形式,其包括用于通过产生窄波束的声喇叭(3)沿着测量路径辐射脉冲声波或超声波信号的压电换能器。 通过喇叭接收的反射信号由传感器接收并转换成电测量信号。 时间测量装置提供用于确定脉冲辐射与接收反射信号之间的时间间隔,以便提供将代表将触发显示器的装置与表面之间的路径距离的距离信号(7 )给予远距读数。 该装置的一个重要特征在于,电子电路将包括放大器,该放大器将增加由反射脉冲承载的电信号的放大,该反射脉冲以从测量信号脉冲的辐射所经过的时间的函数来补偿衰减 的接收信号。