Cloud chamber for atmospheric ice nucleus activation counting and cloud chamber system

A cloud chamber and ice core technology, which is applied in the field of atmospheric science to achieve the effect of improving observation time, accurate temperature control results, and improving observation accuracy.

Inactive Publication Date: 2012-08-22
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its device can only measure the number concentration of ice crystals formed by atmospheric ice nuclei under the joint action of the four mechanisms, and can only measure the number concentration of ice crystals formed by atmospheric ice nuclei under different temperature conditions. The observation data of this device is obtained by reading with the naked eye , the error is large; the control and measurement of its temperature are completed by manually operating the control element

Method used

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  • Cloud chamber for atmospheric ice nucleus activation counting and cloud chamber system
  • Cloud chamber for atmospheric ice nucleus activation counting and cloud chamber system
  • Cloud chamber for atmospheric ice nucleus activation counting and cloud chamber system

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, the cloud chamber of the present invention comprises an upper cloud chamber 6, a lower cloud chamber 7 and a water vapor chamber 18, and the upper and lower cloud chambers are in the shape of a casing opposite to each other, forming a cylindrical seal when the upper and lower cloud chambers are fastened together. Cloud cavity.

[0028] The water vapor chamber 18 communicates with the upper cloud chamber 6 through the water vapor valve 17. The upper cloud chamber 6 is also connected with an air pump 2 and an intake valve 4. The upper cloud chamber 6 is reserved with a pressure measuring hole 20; the lower cloud chamber 7 has a built-in first Temperature control sheet 16, the first temperature sensor and sampling sheet 15, sampling sheet 15 is arranged on the first temperature control sheet 16, the first temperature sensor is connected with sampling sheet 15, and collects temperature signal; The top of upper cloud chamber 6 is transparent, And...

Embodiment 2

[0031] Such as figure 2 Shown, the cloud chamber system that the present invention is used for atmospheric ice nucleus activation counting comprises the airtight cloud chamber cavity that upper and lower cloud chambers form, water vapor chamber 18 and computer unit 1, and wherein upper cloud chamber 6 installs CCD camera 11, LED lighting Lamp 12 and the first pressure measuring instrument 13, the lower cloud chamber 7 is connected with a lifting frame 8, the lifting frame is fixed on the base 10, the upper cloud chamber is also fixed on the base 10 through the back frame 9, and the lower cloud chamber cavity 7 is placed There is a sampling sheet 15 of aerosol, the sampling sheet 15 is arranged on the first temperature control sheet 16, the first temperature sensor 14 is connected with the sampling sheet 15, and the first temperature sensor 14 collects the temperature signal of the sampling sheet 15; the right end of the upper cloud chamber 6 A water vapor chamber 18 is connec...

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Abstract

The invention provides a cloud chamber capable of measuring ice crystals formed by atmospheric ice nuclei through a sublimation nucleation or condensation / freezing nucleation effect under conditions of different temperature, different humidity and different pressure. The invention provides a cloud chamber for atmospheric ice nucleus activation counting and a cloud chamber system. The cloud chamber comprises an upper cloud chamber, a lower cloud chamber and a vapor chamber. The vapor chamber is communicated with a vapor valve and the upper cloud chamber. The upper cloud chamber is additionally connected with an air extracting pump and an air inlet valve. The top of the upper cloud chamber is sealing transparent quartz glass. A video camera is installed above the upper cloud chamber. An illuminating lamp is additionally arranged between the video camera and the top of the upper cloud chamber. A pressure measuring hole is additionally reserved on the upper cloud chamber. A first pressure measuring instrument is arranged at the position of the pressure measuring hole. A first temperature control strip, a first temperature sensor and a sampling strip are arranged in the lower cloud chamber. The upper cloud chamber and the lower cloud chamber are of the shape of relatively arranged enclosures. When the upper cloud chamber and the lower cloud chamber are fastened, a sealed cloud chamber cavity is formed. The vapor chamber is a cylindrical transparent chamber. A second temperature control strip and a second temperature sensor are arranged at the bottom of the vapor chamber.

Description

Technical field: [0001] The invention relates to the field of atmospheric science, in particular to the technical field of observing and researching the number concentration of ice crystals formed by desublimation nucleation or condensation nucleation of atmospheric ice nuclei used for meteorological detection under different temperature, humidity and pressure conditions. Background technique: [0002] Atmospheric ice nuclei refer to aerosol particles that can promote or inhibit the process of cold cloud precipitation by affecting the phase transition of water. Atmospheric ice nucleation has four mechanisms: desublimation nucleation, condensation nucleation, contact freezing nucleation and infiltration freezing nucleation. Atmospheric ice core is the basic research content of cloud and precipitation physics, the basic theoretical guidance of weather modification operations, and an important influencing factor of climate effects. At present, the routine observation of atmo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/00G01N15/14
Inventor 银燕苏航卜令兵陈魁楚志刚许汉冰王黎俊杨磊蒋惠
Owner NANJING UNIV OF INFORMATION SCI & TECH
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