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公开(公告)号：US4036557A
公开(公告)日：1977-07-19
申请号：US621709
申请日：1975-10-14
申请人： Craig M. Christensen
发明人： Craig M. Christensen
CPC分类号： G02B27/144 , G01P3/366 , G01P5/26 , G01S7/4812 , G01S7/499 , G01S7/58
摘要： A laser doppler velocimeter for measuring one or more velocity components of a moving material, fluid or solid, using a single set of optical focusing elements. A unique two component beam splitter provides multiple pairs of parallel beams, one pair from each input radiation beam from a given laser source.Each incident radiation input beam is separated by means of a selectively transmissive coating on one of the roof faces of an Amici prism into a first beam comprising substantially all of the polarized component parallel to the plane of incidence (P polarization) and one-half of the polarization component normal to the plane of incidence (S polarization), and a second beam comprising one-half of the S polarization component alone. At the measuring point, the two beams interfere, with the S components producing a differential doppler frequency superimposed on a non-doppler pedestal, while the P component contains only the non-doppler pedestal. The detector beam splitter directs the P polarization component to one radiation detector and the S polarization component to the remaining detector. The analog electrical equivalent signal to the optical P component signal is electrically subtracted from the electrical analog equivalent to the S component signal, the pedestal is removed, and this signal is divided by the P component signal to yield a signal having the pure doppler differential frequency information.The invention provides dual beam redundancy, extremely simple alignment, and two velocity measuring ranges.
摘要翻译： 激光多普勒测速仪，用于使用单组光学聚焦元件测量移动材料，流体或固体的一个或多个速度分量。 独特的双分量光束分离器提供多对平行光束，一对来自给定激光源的每个输入辐射束。
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公开(公告)号：US20220409185A1
公开(公告)日：2022-12-29
申请号：US17846928
申请日：2022-06-22
摘要： Provided is an ultrasound imaging apparatus capable of reducing examination time with optimizing parameters on an examination basis. A subject is irradiated with an ultrasound wave, and a plurality of ultrasound transducers receives the ultrasound wave from the subject to obtain received signals. A feature value is calculated from the received signals, the feature value indicating a frequency-dependent characteristic of attenuation of the ultrasound wave, associated with propagation of the ultrasound wave through the subject. A predetermined processing is performed on the received signals using one or more received-signal processing parameters to generate an image. An image processing is performed on the generated image using one or more image processing parameters. Values of the received-signal processing parameter and the image processing parameter are determined based on the feature value.
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公开(公告)号：US20200041631A1
公开(公告)日：2020-02-06
申请号：US16051983
申请日：2018-08-01
申请人： Navico Holding AS
发明人： Ronald Horner
摘要： An apparatus configured to generate a first sonar image from first sonar returns corresponding to a first depth range and generate a second sonar image from the first sonar returns and second sonar returns, the second sonar returns corresponding to a second depth range greater than the first depth range of the first sonar returns such that a portion of the second sonar image does not include sonar return data. The portion without sonar return data corresponds to a period of the first sonar returns and depths greater than the maximum depth of the first depth range. The apparatus is configured to generate and display a fill image for the portion of the second sonar image based on at least one set of side facing sonar return data corresponding to the time period associated with the first sonar returns.
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公开(公告)号：US5235316A
公开(公告)日：1993-08-10
申请号：US811301
申请日：1991-12-20
申请人： Gregory K. Qualizza
发明人： Gregory K. Qualizza
CPC分类号： G01S15/931 , G01S7/58 , Y10S367/909
摘要： The collision avoidance system includes structure mountable at the side mirror position of a vehicle. The system includes a rotatable mirror and an ultrasonic transmitting and receiving unit which is adaptable to scan a predetermined area about the vehicle to detect the presence of an object and to calculate its distance from the vehicle. If the distance and speed are determined to pose a threat, the distance is placed on a display and an alarm is sounded. Two displays are provided, one for the forward end of the vehicle and another for the rear end of the vehicle. The system operates when the vehicle is moving forwardly and rearwardly. Also, when the vehicle is not moving, the presence of a potential intruder is also monitored and the system can actuate an anti-theft alarm of the vehicle. Further, the system can be programmed by a plurality of operators to particular distances, with the system discerning which operator is driving and automatically using that operator's input.
摘要翻译： 碰撞避免系统包括可安装在车辆的后视镜位置的结构。 该系统包括可旋转反射镜和超声波发射和接收单元，其适于扫描车辆周围的预定区域以检测物体的存在并计算其与车辆的距离。 如果距离和速度被确定为构成威胁，距离将放置在显示屏上，并发出警报。 提供两个显示器，一个用于车辆的前端，另一个用于车辆的后端。 当车辆向前和向后移动时，系统运行。 此外，当车辆不移动时，还监视潜在入侵者的存在，并且系统可以致动车辆的防盗报警。 此外，系统可以由多个操作者编程到特定距离，系统辨别哪个操作者正在驾驶，并且自动使用该操作者的输入。
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公开(公告)号：US5065371A
公开(公告)日：1991-11-12
申请号：US556830
申请日：1990-07-23
CPC分类号： G01S7/52004 , G01S15/96 , G01S7/58 , Y10S367/902
摘要： A depth finder utilizing a CPU to control the function of various components including a transducer, receiver, and a liquid crystal display, allowing a user to select between fresh and salt water operational modes as well as between English and metric display units. The CPU is controlled by a keypad and varies the rate at which stored transducer data is transferred from the receiver to the CPU such that the data is always representative of a fixed depth increment in any operational mode.
摘要翻译： 利用CPU来测量包括换能器，接收器和液晶显示器在内的各种部件的功能的测深仪，允许用户在新鲜和咸水操作模式之间以及英制和公制显示单元之间进行选择。 CPU由键盘控制，并且改变存储的传感器数据从接收器传送到CPU的速率，使得数据总是代表任何操作模式中的固定深度增量。
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公开(公告)号：US11199615B2
公开(公告)日：2021-12-14
申请号：US16051983
申请日：2018-08-01
申请人： Navico Holding AS
发明人： Ronald Horner
摘要： An apparatus configured to generate a first sonar image from first sonar returns corresponding to a first depth range and generate a second sonar image from the first sonar returns and second sonar returns, the second sonar returns corresponding to a second depth range greater than the first depth range of the first sonar returns such that a portion of the second sonar image does not include sonar return data. The portion without sonar return data corresponds to a period of the first sonar returns and depths greater than the maximum depth of the first depth range. The apparatus is configured to generate and display a fill image for the portion of the second sonar image based on at least one set of side facing sonar return data corresponding to the time period associated with the first sonar returns.
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公开(公告)号：US09632175B2
公开(公告)日：2017-04-25
申请号：US13973892
申请日：2013-08-22
发明人： Jun Nakamichi , Yu Goto , Masaaki Matsubara , Norihiro Nishimoto
摘要： A target object detection device is provided. The device includes a signal processor, a display unit, and a controller. The signal processor receives a reception signal generated based on an echo of an ultrasonic wave from a target object and generates echo data corresponding to a distance from a transmission source of the ultrasonic wave to the target object every time the ultrasonic wave is transmitted. The display unit has a display screen with a first side and a second side that is turnable in an axial direction perpendicular to the display screen, and displays an image on the display screen based on the echo data. The controller sets a range with respect to time at which the ultrasonic wave is transmitted, and outputs the echo data corresponding to the ultrasonic wave within the time range according to turning of the display screen.
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公开(公告)号：US20170023669A1
公开(公告)日：2017-01-26
申请号：US14803302
申请日：2015-07-20
申请人： Navico Holding AS
发明人： Matthew Laster
CPC分类号： G01S7/58 , G01S7/003 , G01S7/6218 , G01S15/025 , G01S15/88 , G01S15/89 , G01S15/96 , G06T11/206
摘要： Various implementations described herein are directed to a non-transitory computer-readable medium having stored thereon a plurality of computer-executable instructions which, when executed by a computer, cause the computer to perform various actions. The actions may include receiving sonar data from a sonar transducer, identifying a subset of the received sonar data to be displayed on the screen, and identifying a deepest level from the subset. The actions may further include determining a depth range that includes the deepest level, and rendering an image of the subset based on the depth range.
摘要翻译： 本文所描述的各种实现涉及其上存储有多个计算机可执行指令的非暂时性计算机可读介质，当计算机执行指令时，计算机执行各种动作。 动作可以包括从声纳换能器接收声纳数据，识别要在屏幕上显示的所接收的声纳数据的子集，以及从该子集识别最深的级别。 动作还可以包括确定包括最深级别的深度范围，以及基于深度范围呈现该子集的图像。
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公开(公告)号：US3683403A
公开(公告)日：1972-08-08
申请号：US3683403D
申请日：1970-11-09
申请人： JAPAN RADIO CO LTD
发明人： OKINO MUTSUO
摘要： A sounding device for measuring distance to an object wherein the transmitted and received reflected sound waves are converted to digital signals which are stored in a memory device at a variable rate. The storage rate of information in the memory device is set in accordance with the range of the distances being measured. The stored information is read out of the memory device at a fixed repetition rate and is fed to a display means which indicates the distance to the object.
摘要翻译： 一种用于测量到物体的距离的探测装置，其中发射和接收的反射声波被以可变速率转换成存储在存储装置中的数字信号。 存储装置中的信息的存储速度根据所测量的距离的范围来设定。 所存储的信息以固定的重复速率从存储器件中读出，并被馈送到指示到对象的距离的显示装置。
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10.发明授权Device for sounding purposes and for measurements of distance by the reflected sound of a submarine signal received on shipboard 失效通过船上接收到的潜艇信号的反射声音进行探测和测量距离的装置
公开(公告)号：US1948253A
公开(公告)日：1934-02-20
申请号：US27486228
申请日：1928-05-03
申请人： EUGENE BLONDEL ANDRE
发明人： EUGENE BLONDEL ANDRE
IPC分类号： G01S7/58
CPC分类号： G01S7/58
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