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1. 发明公开

EP2564236A1 ATMOSPHERIC HUMIDITY OR TEMPERATURE OR CLOUD HEIGHT MEASURING METHOD AND APPARATUS 有权
标题翻译：的方法和用于测量湿度或温度和云的高度
公开(公告)号：EP2564236A1
公开(公告)日：2013-03-06
申请号：EP11774484.7
申请日：2011-04-28
申请人： VAISALA OYJ
发明人： KALLIO, Jukka
IPC分类号： G01S17/95 , G01W1/02 , H01S5/14 , H01S3/137 , G02B5/28
CPC分类号： G01S17/95 , G01K2213/00 , G01S7/4814 , G01S7/4815 , G01W1/00 , G02B5/28 , G02B26/001 , H01S5/4062 , Y02A90/19
摘要： An atmospheric cloud height, humidity profile, or temperature measuring method and arrangement are provided. In the method, pulsed laser signals (14) are transmitted through transmission optics (2, 3, 4, 5, 6) to the atmosphere and the signal (15) reflected or scattered back from there is detected. An interference filter (3) is used in the optics, in order to stabilize the transmitted optical power to the center wavelength of the interference filter (3).

2. 发明公开

EP3633414A1 A FORWARD SCATTER SENSOR 有权
公开(公告)号：EP3633414A1
公开(公告)日：2020-04-08
申请号：EP18198210.9
申请日：2018-10-02
申请人： Vaisala, OYJ
发明人： HEYN, Klaus , LÖNNQVIST, Jan , KALLIO, Jukka
IPC分类号： G01W1/14 , G01N15/02 , G01N15/14 , G01N21/17 , G01N21/53
摘要： According to an example embodiment, a forward scatter sensor for precipitation analysis is provided, the forward scatter sensor comprising: a transmitter arranged to emit a single light sheet; a receiver offset from a propagation path of the light sheet and arranged to observe light scattered from particles that fall through a measurement volume defined by an intersection of the propagation path of the light sheet and a field of view of the receiver; and a control entity comprising an analyzer arranged to record a measurement signal that is descriptive of intensity of light captured by the receiver as a function of time, wherein the analyzer is arranged to carry out a precipitation analysis on basis of a time segment of the measurement signal, the analysis comprising: identifying, in said time segment of the measurement signal, one or more double peaks that each represent a respective droplet and comprise a first peak that represents light refracted from the bottom of the respective droplet upon entry to the measurement volume and a second peak that represents light reflected from the top of the respective droplet upon exit from the measurement volume; deriving one or more precipitation parameters based at least in part on the identified one or more double peaks; and deriving one or more precipitation indications based at least in part of the derived one or more precipitation parameters.

3. 发明授权

EP2564236B1 ATMOSPHERIC HUMIDITY OR TEMPERATURE OR CLOUD HEIGHT MEASURING METHOD AND APPARATUS 有权
公开(公告)号：EP2564236B1
公开(公告)日：2020-02-12
申请号：EP11774484.7
申请日：2011-04-28
申请人： VAISALA OYJ
发明人： KALLIO, Jukka
IPC分类号： G01S17/95 , G01S7/481 , G01W1/00 , H01S5/40

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