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    • 81. 发明专利
    • Wind disturbance prediction system
    • 空值
    • JP3740525B2
    • 2006-02-01
    • JP2001204466
    • 2001-07-05
    • 独立行政法人 宇宙航空研究開発機構
    • 浜木 井之口
    • G01S17/88G01W1/00B64D45/00G01S17/50G01S17/95
    • G01S17/58G01S17/95G01W2001/003Y02A90/19
    • The wind turbulence prediction system according to the present invention provides a measurement system, which is capable of measuring three-dimensional wind turbulence, exhibits limited aerodynamic and structural effects when mounted on an aircraft, is capable of measurement even in cases in which the velocity is equal to or less than 20 to 30 m/s, at which velocity a Pitot tube is incapable of measurement, and even in cases where the air flow direction differs greatly from the axis of aircraft body, and does not produce an error resulting from disruption of the air flow by the aircraft body itself. The wind turbulence prediction system of the present invention adopts a system that measures the speed of remote three-dimensional air flow by mounting a laser wind speed indicator utilizing the Doppler effect on an aircraft, irradiating laser light while scanning same in a cone shape, and then receiving scattered light from wind turbulence regions forward of an aircraft body in flight. Also, by considering the effects on the aircraft body exerted by a vertical wind and a fore and aft wind, measured three-dimensional air flow information is converted to a vertical wind alone and then displayed in simplified form in two dimensions, and wind turbulence is expressed through breakdown of same into turbulent flow strength and average wind.
    • 根据本发明的风湍流预测系统提供了一种能够测量三维风湍流的测量系统,当安装在飞机上时具有有限的空气动力学和结构效应,即使在速度为 等于或小于20至30m / s,皮托管不能测量的速度,甚至在空气流动方向与飞行器主体的轴线差异很大的情况下也不会产生由于中断引起的误差 的飞机本身的气流。 本发明的风湍流预测系统采用利用多普勒效应的飞机上安装激光风速指示器来测量远程三维气流的速度的系统,在以锥形扫描相同的状态下照射激光,并且 然后在飞行中从飞机身体前方的风湍流区域接收散射光。 此外,通过考虑由垂直风和前后风施加的对飞机机体的影响,测量的三维气流信息被单独转换为垂直风,然后以简化的形式二维显示,风湍流是 通过将其分解为湍流流动强度和平均风量来表示。
    • 83. 发明专利
    • JPS6114470B2 -
    • JPS6114470B2
    • 1986-04-18
    • JP7102378
    • 1978-06-14
    • Impulsphysik Gmbh
    • FURANKU FURYUNGERU
    • G01S17/10G01S17/88G01S17/95
    • G01S17/107G01S17/95Y02A90/19
    • The total range to be explored consists of a succession of range-steps. For each range-step, a transmitter emits upwards at least one laser pulse, which is reflected downward by clouds onto a range gated receiver. The gating interval is progressively shifted, to run through the range-steps. For each range-step, reflected laser pulses received during the gating intervals, if any, are integrated. The power attenuation of the reflected pulses is an approximately quadratic function of height, the relationship between the range-step value and the integrated signal is thus made approximately quadratic. In the lower part of the total range, the conical beam patterns of transmitter and receiver progressively overlap, to create an overlap which increases quadratically with height. At least in the remaining upper part, an integration schedule is established, fixing for each range-step the number of pulses integrations performed before going onto the next range-step. The number of integrations performed per range-step increases approximately quadratically as a function of range-step value or height.
    • 84. 发明专利
    • Distance meter by light wave
    • 距离仪表由光波
    • JPS59174774A
    • 1984-10-03
    • JP4943083
    • 1983-03-24
    • Koito Mfg Co Ltd
    • FUKUYA KOU
    • G01S7/48G01S17/95
    • G01S17/95Y02A90/19
    • PURPOSE:To facilitate an accurate measurement by arranging a meteorological sensor for generating an electric signal corresponding to the temperature and atmospheric pressure and a meteorological correction circuit for performing a corrective computation based on an output signal of the meteorological sensor. CONSTITUTION:A light emitter 2 generates light modulated in the amplitude with a modulating wave as illustrated (a) generated by an oscillator 1 and projects it as projection light 3. When reaching a target point, the projection light 3 is sent back as reflected light 5 with a reflector 4. A photo detector 6 outputs a signal corresponding to the intensity of the reflected light 5 when the reflected light 5 reaches it 6. But, as the projection light 3 is modulated by a signal as illustrated (a), the photo detector 6 generates and feeds a signal as illustrated (b) to a phase comparatos 7. The phase comparator 7 to which another signal are fed from an oscillator 1, which detects the phase difference between both the signals. In this case, since the signal fed from the photo detector 6 generated after the projection light 3 reciprocated to and from the target point, it is delayed by the time T from the signal generated from the oscillator 1 as illustrated (a).
    • 目的:通过安排用于产生对应于温度和大气压力的电信号的气象传感器和用于基于气象传感器的输出信号执行校正计算的气象校正电路来促进精确的测量。 构成:发光二极管2利用振荡器1产生的调制波产生具有调制波幅度的光,并将其投射为投影光3.当到达目标点时,投影光3作为反射光 当反射光5到达6时,光电检测器6输出与反射光5的强度相对应的信号。但是,当投影光3被如图(a)所示的信号调制时, 光电检测器6产生并将如图(b)所示的信号馈送到相位比较器7.相位比较器7从振荡器1馈送另一个信号,该相位比较器7检测两个信号之间的相位差。 在这种情况下,由于在投影光3与目标点之间往复运动时产生的光电检测器6的信号由图1(a)所示的振荡器1产生的信号延迟了时间T.