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Laser raindrop spectrograph

A technology of raindrop spectrometer and laser, which is applied in the direction of scientific instruments, rainfall/precipitation gauges, measuring devices, etc., can solve the problems of automatic raindrop spectrum measurement and low measurement efficiency, and achieve the effect of reducing manual participation and improving measurement efficiency

Active Publication Date: 2013-06-12
BEIJING METABTAR RADAR
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Problems solved by technology

These traditional methods require a lot of manual participation and cannot complete the automatic measurement of the raindrop spectrum, so the measurement efficiency is very low

Method used

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  • Laser raindrop spectrograph
  • Laser raindrop spectrograph
  • Laser raindrop spectrograph

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Embodiment Construction

[0032] see figure 1 , the present invention provides a specific embodiment of a laser raindrop spectrometer. In this embodiment, the laser raindrop spectrometer includes: a laser transmitter 101, a laser receiver 102 and a processing module 103; a laser transmitter 101 and a laser receiver The devices 102 are separated by a preset distance. Here, the laser area between the laser transmitter 101 and the laser receiver 102 is an area for receiving measured raindrops.

[0033] The laser emitter 101 is used to emit laser light. The laser receiver 102 is used to receive the laser light emitted by the laser transmitter 101 , perform photoelectric conversion on the received laser light, and send the converted electrical signal to the processing module 103 . Preferably, the laser transmitter is directly opposite to the laser receiver, so that the intensity of the laser light received by the laser receiver is maximized.

[0034] The processing module 103 is used to judge whether the...

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Abstract

The invention provides a laser raindrop spectrograph, which comprises a laser transmitter, a laser receiver and a processing module. A distance is preset between the laser transmitter and the laser receiver; the laser transmitter is used for emitting laser; and the laser receiver is used for receiving the laser which is emitted by the laser transmitter, performs photovoltaic conversion on the received laser, and then sends a converted electric signal to the processing module; the processing module is used for judging whether a descend range of the intensity of the laser received by the laser receiver, in comparison with standard intensity, is greater than a preset amplitude or not according to the received electric signal, if so, the diameter of raindrops is computed according to the received electric signal, the size of the laser which is received by the laser transmitter and the standard intensity; and the standard intensity is the intensity of the laser which is received by the laser receiver when a barrier does not exist between the laser transmitter and the laser receiver. The automatic measurement of a rain drop spectrum is realized by the laser, manual intervention is reduced and measuring efficiency is improved.

Description

technical field [0001] The invention relates to the field of optical equipment, in particular to a laser raindrop spectrometer. Background technique [0002] The raindrop spectrum refers to the distribution of raindrop sizes within a unit volume. The observation of raindrop spectrum is one of the important contents of cloud precipitation physics research. Various precipitation physical parameters (such as particle number density, rainwater content, rain intensity and radar reflectivity factor) and the attenuation of raindrops to microwaves can be calculated through the raindrop spectrum. Empirical relationship between radar reflectivity factor and precipitation intensity, etc. [0003] The traditional methods for measuring raindrop spectrum mainly include filter paper stain method, kinetic method, flour ball method, fast photography method and infiltration method. These traditional methods require a lot of manual participation and cannot complete the automatic measurement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/14
Inventor 张垚
Owner BEIJING METABTAR RADAR
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