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Method for measuring water content in cloud

A water content and concentration measurement technology, applied in measurement devices, color/spectral characteristic measurement, instruments, etc., can solve problems such as difficult to measure accurate results, inability to measure ice crystal wires, etc., and achieve the effect of high detection accuracy

Inactive Publication Date: 2017-05-24
TAIYUAN AERO INSTR
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AI Technical Summary

Problems solved by technology

But this method is ineffective for ice crystals, which will be bounced off by the wire and cannot be measured
If the measurement object is a solid ice crystal cloud or a mixed cloud layer where solid and liquid coexist, it is difficult to measure accurate results

Method used

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  • Method for measuring water content in cloud
  • Method for measuring water content in cloud

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Embodiment Construction

[0020] figure 1 It is a schematic diagram of the present invention, based on the airborne equipment for measuring the water content in the cloud based on TDLAS technology: by air intake pipe 1, heating pipe 2, absorption pool 4, laser diode 3, photoelectric receiving pipe 6, throttle control valve 7, And auxiliary temperature, pressure sensor and corresponding detection circuit 5 composition. Said laser diode is a tunable laser diode. Laser diode, absorption cell and photoelectric receiver constitute a basic TDLAS water vapor measurement system, and its working wavelength can be selected in the water vapor absorption bands such as 940nm or 1392nm. The absorption pool has a light entrance window and a light exit window, and outside the light entrance window is a laser diode and an optical collimation system, and outside the light exit window is a photoelectric absorption tube and an optical collimation system. The absorption pool has an air inlet connected to the air inlet pi...

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Abstract

The invention belongs to the technical field of detection of water content in cloud, particularly relates to a method for measuring the water content in cloud and aims at obtaining an accurate result of the water content in cloud including water drops and ice crystals. The method for measuring the water content in the cloud comprises the steps that cloud and mist gas containing water drops and ice crystals entering a measuring device is heated to form unsaturated mixed wet gas, and then water vapor concentration is performed. The method has the advantages that the method has very high detection accuracy, cirrus cloud completely composed of ice crystals and having very low water content can be also measured in a precision mode, and the measurement result is the water content in cloud containing liquid water and solid water.

Description

technical field [0001] The invention belongs to the technical field of detecting water content in clouds, and in particular relates to a method for measuring water content in clouds. Background technique [0002] In the field of meteorological detection, due to the needs of artificial rainfall or other artificial weather modification, it is often necessary to measure the water content in clouds and fog. Performing artificial rainfall enhancement operations in clouds with sufficient water content can improve the success rate of operations and increase precipitation. The "water" here refers to saturated condensed water droplets and ice crystals, not the water vapor content in the uncondensed air, and the unit of water content is generally g / m 3 . In order to complete higher-precision measurements, devices are currently loaded onto aircraft for near-field contact measurements. There are roughly two existing airborne measurement methods. One is to measure the scale spectrum of...

Claims

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Application Information

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IPC IPC(8): G01N21/39
CPCG01N21/39G01N2021/399G01N2201/0612
Inventor 翟东力
Owner TAIYUAN AERO INSTR
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