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公开(公告)号：CN106949979A
公开(公告)日：2017-07-14
申请号：CN201710071548.9
申请日：2017-02-09
Applicant: 北京建筑大学
IPC: G01J7/00
CPC classification number: G01J7/00
Abstract: 本发明属于物理常数测量技术领域，尤其涉及一种基于LC振荡电路的新型光速测量方法，所述方法包括获取LC振荡周期T、电感L、电容C，通过振荡周期、电感参数的采样值对振荡周期的平方值(T2)、电感参数(N2/l)进行线性拟合，获知线性斜率k，进而计算ε0μ0取值并计算得出光速c。本发明基于LC振荡电路对光速进行测量，有效降低了对光速测量的复杂度，提高了测量精度，降低了误差率。
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公开(公告)号：CN107144360A
公开(公告)日：2017-09-08
申请号：CN201710290581.0
申请日：2017-04-28
Applicant: 中国科学院化学研究所
Abstract: 本发明涉及一种低电压弱场加速离子成像式小型光解碎片平动速度谱仪，包括源室、反应室、真空泵、脉冲阀、准直器、光解激光和电离激光、低电压弱场离子加速和聚焦系统、微通道板、荧光屏、数据采集系统、时序控制系统和计算机；本申请创新地用弱电场(10～30V/cm)加速离子同时使离子聚焦。离子飞行总距离仅约为12cm。本发明采用低电压弱场使得定态的离子牛顿球的短轴能达到较大的时差，这十分利于随后的时间切片操作。本申请分辨率等性能优于目前通用的大多数强电场(100～350V/cm)加速，长距离(38～105cm)飞行的离子成像式光解碎片平动能谱仪。本发明可以为光解动力学的研究提供更精确、更简便高效的实验手段。
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公开(公告)号：CN106872054A
公开(公告)日：2017-06-20
申请号：CN201710059664.9
申请日：2017-01-24
Applicant: 运通兴达(北京)机电工程有限责任公司
Inventor： 梁正远
IPC: G01J7/00
CPC classification number: G01J7/00
Abstract: 本发明涉及一种测量速度的领域，尤其涉及一种光速的测量方法与装置。发明采用激光发生器、光感器、计时器和控制器的结合设置，解决了目前的光速测量不普及、造价高的问题。
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公开(公告)号：US20240175759A1
公开(公告)日：2024-05-30
申请号：US17994986
申请日：2022-11-28
Applicant: Saudi Arabian Oil Company
Inventor： Alejandro M. Vera
IPC: G01J7/00
CPC classification number: G01J7/00
Abstract: Systems and methods include a method for determining wave propagation speed. Spatio-temporally-sampled data for electromagnetic (EM) wave propagation through a fluid in a conduit is acquired for different instants of time from each antenna of an array of antennas distributed at predetermined locations. A k-ω plot plotting curves having a kinematic relationship ω=ck is generated based on the spatio-temporally-sampled data and using a spectral-based algorithm, where ω is an angular frequency of a spectral component of EM disturbances, k is a wavenumber, and c is an unknown speed of the EM wave propagation. A spectral ridge on the curves is identified using the k-ω plot. Parameters for calculating a slope of the spectral ridge are determined. The slope of the spectral ridge is determined. The speed of EM wave propagation is determined assuming a relation between the speed of EM wave propagation and the slope of the spectral ridge.
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5.发明申请公开(公告)号：US20140347651A1
公开(公告)日：2014-11-27
申请号：US14214234
申请日：2014-03-14
Applicant: National Security Technologies, LLC
Inventor： Robert M. Malone , Morris I. Kaufman
CPC classification number: G01J7/00 , G01P3/36 , G01S7/4812 , G01S7/4813 , G01S7/4818 , G01S7/4917 , G01S17/58 , G01S17/89 , G02B6/322 , G02B6/34
Abstract: A probe including a multiple lens array is disclosed to measure velocity distribution of a moving surface along many lines of sight. Laser light, directed to the moving surface is reflected back from the surface and is Doppler shifted, collected into the array, and then directed to detection equipment through optic fibers. The received light is mixed with reference laser light and using photonic Doppler velocimetry, a continuous time record of the surface movement is obtained. An array of single-mode optical fibers provides an optic signal to the multiple lens array. Numerous fibers in a fiber array project numerous rays to establish many measurement points at numerous different locations. One or more lens groups may be replaced with imaging lenses so a stereo image of the moving surface can be recorded. Imaging a portion of the surface during initial travel can determine whether the surface is breaking up.
Abstract translation: 公开了一种包括多透镜阵列的探针，以测量沿着许多视线的运动表面的速度分布。 指向移动表面的激光从表面反射回来，并将多普勒频移，收集到阵列中，然后通过光纤导向检测设备。 所接收的光与参考激光混合并使用光子多普勒测速法，获得表面运动的连续时间记录。 单模光纤阵列为多透镜阵列提供光信号。 光纤阵列中的许多光纤投射大量光线，以便在许多不同的位置建立许多测量点。 可以用成像透镜替换一个或多个透镜组，从而可以记录移动表面的立体图像。 在初始行驶期间成像表面的一部分可以确定表面是否破裂。
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Patent Agency Ranking
6.发明授权Device, system and method for measuring Reichenbach clock synchronizations 失效用于测量Reichenbach时钟同步的装置，系统和方法公开(公告)号：US07075627B2
公开(公告)日：2006-07-11
申请号：US09863778
申请日：2001-05-23
Applicant: George A. Soli
Inventor： George A. Soli
CPC classification number: G01J7/00
Abstract: A device, system and method for measuring the one-way velocity of light using selective transmission technology to provide a “superluminal” energy flow is provided. The “superluminal” transmitter comprises a transmission source, a receiver, and a selective-transmission device for receiving the transmission wavepacket from the transmission source and selectively transmitting the wavefront component of the transmission wavepacket through a barrier such that the energy transmission tunnels through the barrier at “superluminal” group velocities. The measured daily oscillation of the tunnel time can then be utilized to measure the one way light velocity. A system and method for measuring the vector phase or group velocity of light using the “superluminal” transmitter system of the invention is also provided as well as a device which can be utilized as a compass, a calendar and/or a clock.
Abstract translation: 提供了一种使用选择性传输技术测量单向速度光以提供“超光速”能量流的装置，系统和方法。 “超光速”发射机包括传输源，接收机和选择传输设备，用于从传输源接收传输波包，并通过屏障选择性地传输传输波包的波阵面分量，使得能量传输通过屏障 在“超光速”组速度。 隧道时间的测量每日振荡可用于测量单向光速。 还提供了使用本发明的“超光速”发射机系统测量光矢量相位或组速度的系统和方法，以及可用作罗盘，日历和/或时钟的装置。
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7.发明授权公开(公告)号：US09507024B2
公开(公告)日：2016-11-29
申请号：US14822676
申请日：2015-08-10
Applicant: National Security Technologies, LLC
Inventor： Robert M. Malone , Morris I. Kaufman
CPC classification number: G01J7/00 , G01P3/36 , G01S7/4812 , G01S7/4813 , G01S7/4818 , G01S7/4917 , G01S17/58 , G01S17/89 , G02B6/322 , G02B6/34
Abstract: A probe including a multiple lens array is disclosed to measure velocity distribution of a moving surface along many lines of sight. Laser light, directed to the moving surface is reflected back from the surface and is Doppler shifted, collected into the array, and then directed to detection equipment through optic fibers. The received light is mixed with reference laser light and using photonic Doppler velocimetry, a continuous time record of the surface movement is obtained. An array of single-mode optical fibers provides an optic signal to the multiple lens array. Numerous fibers in a fiber array project numerous rays to establish many measurement points at numerous different locations. One or more lens groups may be replaced with imaging lenses so a stereo image of the moving surface can be recorded. Imaging a portion of the surface during initial travel can determine whether the surface is breaking up.
Abstract translation: 公开了一种包括多透镜阵列的探针，以测量沿着许多视线的运动表面的速度分布。 指向移动表面的激光从表面反射回来，并将多普勒频移，收集到阵列中，然后通过光纤导向检测设备。 所接收的光与参考激光混合并使用光子多普勒测速法，获得表面运动的连续时间记录。 单模光纤阵列为多透镜阵列提供光信号。 光纤阵列中的许多光纤投射大量光线，以便在许多不同的位置建立许多测量点。 可以用成像透镜替换一个或多个透镜组，从而可以记录移动表面的立体图像。 在初始行驶期间成像表面的一部分可以确定表面是否破裂。
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公开(公告)号：US3353439A
公开(公告)日：1967-11-21
申请号：US27911263
申请日：1963-05-09
Applicant: ROSENBERRY W K
Inventor： ZOLTAN TARCZY-HORNOCH
IPC: G01J7/00
CPC classification number: G01J7/00
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9.发明授权Wavelength dispersion measuring apparatus and polarization dispersion measuring apparatus 有权设备，用于测量的波长色散和偏振色散测量装置
公开(公告)号：EP0937973B1
公开(公告)日：2007-09-05
申请号：EP99103133.7
申请日：1999-02-17
Inventor： Otani, Akihito , Otsubo, Toshinobu , Takara, Hidehiko c/o Nippon Telegr. & Tele. Corp. , Kawanishi, Satoki c/o Nippon Telegr. & Tele. Corp. , Yamabayashi, Yoshiaki c/o Nippon Telegr.& Tel.Cor.
CPC classification number: G01M11/336 , G01J4/00 , G01J7/00 , G01J2009/0261 , G01M11/332 , G01M11/335
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10.发明公开Wavelength dispersion measuring apparatus and polarization dispersion measuring appparatus 审中-公开波长色散测量装置和偏振色散测量装置
公开(公告)号：EP1411339A2
公开(公告)日：2004-04-21
申请号：EP04001628.9
申请日：1999-02-17
Inventor： Otani, Akihito , Otsubo, Toshinobu , Takara, Hidehiko , Kawanishi, Satoki , Yamabayashi, Yoshiaki
CPC classification number: G01M11/336 , G01J4/00 , G01J7/00 , G01J2009/0261 , G01M11/332 , G01M11/335
Abstract: A first tunable wavelength pulse light source (22) is driven by a reference signal to emit a first optical pulse. An optical demultiplexer (24) demultiplexes a first optical pulse emitted from the first pulse light source (22) into a reference optical pulse and an incident optical pulse to be sent into an object to be measured. An optical multiplexer (26) multiplexes the reference optical pulse and an outgoing optical pulse passing through the object to output multiplexed light. A second pulse light source (23) generates a second optical pulse which is synchronous with the first optical pulse and delays a predetermined time for each period of the first optical pulse. A sampling unit (27, 27a, 27b) receives the multiplexed light and the second optical pulse to obtain an optical pulse train signal proportional to the intensity of the multiplexed light obtained in synchronism with the second optical pulse. From the optical pulse train signal from the sampling unit (27, 27a, 27b), a signal processor (37) obtains an envelope formed by peaks of individual optical pulses forming the optical pulse train. The wavelength dispersion of the object is obtained by measuring the delay time of the outgoing optical pulse passing through the object on the basis of intervals between the peaks of the envelope.
Abstract translation: 第一可调波长脉冲光源（22）由参考信号驱动以发射第一光脉冲。 光解复用器（24）将从第一脉冲光源（22）发射的第一光脉冲解复用为参考光脉冲和入射光脉冲以发送到待测量对象中。 光学多路复用器（26）多路复用参考光脉冲和穿过物体的输出光脉冲以输出多路复用光。 第二脉冲光源（23）产生与第一光脉冲同步的第二光脉冲，并延迟第一光脉冲的每个周期的预定时间。 采样单元（27,27a，27b）接收多路复用光和第二光脉冲，以获得与第二光脉冲同步获得的多路复用光的强度成比例的光脉冲串信号。 信号处理器（37）根据来自采样单元（27,27a，27b）的光脉冲串信号获得由形成光脉冲串的各个光脉冲的峰值形成的包络线。 物体的波长色散是通过根据包络峰值之间的间隔测量通过物体的输出光脉冲的延迟时间而获得的。
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