CN102323493B - A kind of stream grains of sand specific charge real-time measurement system - Google Patents
A kind of stream grains of sand specific charge real-time measurement system Download PDFInfo
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- CN102323493B CN102323493B CN201110156068.5A CN201110156068A CN102323493B CN 102323493 B CN102323493 B CN 102323493B CN 201110156068 A CN201110156068 A CN 201110156068A CN 102323493 B CN102323493 B CN 102323493B
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Abstract
A kind of stream grains of sand specific charge real-time measurement system, comprises grains of sand bogey, grains of sand weighing device and electrification of sand particles measuring device; Described grains of sand bogey is Faraday cylinder, and described grains of sand weighing device is electronic balance, and electrification of sand particles measuring device is electrometer; Described electronic balance is provided with Faraday cylinder, and described electrometer is connected with Faraday cylinder wire.By the cooperation of above device, the present invention can realize the Real-time Collection to grains of sand quality and carried charge in Faraday cylinder, can realize the real-time high frequency measurement to stream grains of sand specific charge.
Description
Technical field
The present invention relates to stream electrification of sand particles amount Detection Techniques, particularly, relate to a kind of stream grains of sand specific charge real-time measurement system.
Background technology
Wind sand electricity refers to a kind of magnitude of being formed with a certain amount of electric charge due to motion sand and dust in wind sand environment electric field higher than fine day atmospheric electric field 2-3 the order of magnitude.It can impact stream intensity, communication and radar signal etc.Moreover, in earth environment, the existence of dust is the important factor of its temperature of prediction and of seasonal variations, the research of many other fields is contributed to for the understanding of Sand-dust Transmission process under Wind, such as, atmospheric science, remote sensing technology and geographical science etc.And grains of sand electrostatic force is bed surface plays the element that husky and sand dune movement studies, it except having important learning value, and has great importance for desertification and coastal control.Therefore, the research of dust storm electricity has attracted a large amount of scholars to test and theoretical research on the generation mechanism of Wind sand electricity and on wind-driven sediment impact.
But, due to the restriction of experimental apparatus and means etc., people are also very limited for the understanding of Wind sand electricity and electrification of sand particles, the measurement of electrification of sand particles amount then mainly determined to the average specific charge of these grains of sand according to the ratio of the total carried charge of the grains of sand collected in certain hour and quality.
At present, the instrument for the observation of stream carried charge only can realize measuring the average specific charge of the grains of sand in certain hour, and is mainly used in the measurement of wind-tunnel environment.Still lack the real time dynamic measurement to stream grains of sand specific charge, the kinetic measurement especially under the unattended condition in field, deeply cannot disclose the charged rule of dust storm.
Visible, realizing in process of the present invention, inventor find at least to exist in prior art stream grains of sand specific charge cannot measure in real time with lowered in field environment in the defect such as to measure.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of stream grains of sand specific charge real-time measurement system, to realize measuring in real time stream grains of sand specific charge under field condition.
For achieving the above object, the technical solution used in the present invention is: a kind of stream grains of sand specific charge real-time measurement system, comprises grains of sand bogey, grains of sand weighing device and electrification of sand particles measuring device;
Described grains of sand bogey is Faraday cylinder, and described grains of sand weighing device is electronic balance, and electrification of sand particles measuring device is electrometer;
Described electronic balance is provided with Faraday cylinder, and described electrometer is connected with Faraday cylinder wire.
Sand can not only collect by Faraday cylinder, and the measurement of electrification of sand particles amount can also be convenient to, weighing of the grains of sand adopts electronic balance to realize, the carried charge of the grains of sand is then adopt electrometer to measure, be specially and Faraday cylinder is fixed on electronic balance, electrometer is connected with Faraday cylinder simultaneously.
Further, by data line, electrometer is connected with computer with electronic balance, so just can realize measuring in real time the quality of the grains of sand in Faraday cylinder and the carried charge of the grains of sand, the grains of sand quality of being adopted by two moment and the difference of carried charge, just can obtain the variable quantity of grains of sand quality and carried charge in this time period, thus just can calculate the specific charge entering the Faraday cylinder grains of sand in this time period.
Further, above Faraday cylinder, be fit into sand tube, the grains of sand in stream can be realized like this and enter Faraday cylinder.
Further, in order to realize powering to electronic balance, electrometer and computer under condition in the wild, adopting storage battery to power, that is, electronic balance, electrometer being connected with storage battery with computer.
Further, in order to not make the operation of the grains of sand to experimental apparatus impact, experimental apparatus being encapsulated, being specially, Faraday cylinder, electrometer, computer and Faraday cylinder are encapsulated in case, only will enter sand tube and be exposed to outside case.
The present invention is a stream grains of sand specific charge measuring system, owing to comprising digital calculation balance, electrometer, Faraday cylinder and computer etc., the Real-time Collection to grains of sand quality and carried charge in Faraday cylinder can be realized, can to the real-time high frequency measurement of stream grains of sand specific charge, and encapsulating instrument, thus the defect cannot measuring field grains of sand specific charge in prior art in real time can be overcome.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is encapsulation schematic diagram of the present invention.
In figure, mark is as follows: 1-electrometer, 2-digital calculation balance, 3-Faraday cylinder, 4-enters sand tube, 5-computer, 6-data line, 7-wire, 8-casing.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Electrometer 1: for measuring the electricity of the grains of sand in Faraday cylinder; ;
Digital calculation balance 2: for measuring the quality of the grains of sand in Faraday cylinder;
Faraday cylinder 3;
Enter sand tube 4: for gathering the grains of sand in stream, Faraday cylinder can be entered;
Computer 5: the electrification of sand particles amount recorded for real time record electrometer and digital calculation balance and quality, and then the Changing Pattern of grains of sand specific charge can be obtained;
Data line 6: for connecting electrometer/digital calculation balance and computer;
Wire 7: for connecting electrometer and Faraday cylinder;
Casing 8.
Last it is noted that the foregoing is only explanation embodiments of the present invention; be not limited to the present invention; for a person skilled in the art; within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a stream grains of sand specific charge real-time measurement system, is characterized in that:
Comprise grains of sand bogey, grains of sand weighing device and electrification of sand particles measuring device;
Described grains of sand bogey is Faraday cylinder, and described grains of sand weighing device is electronic balance, and electrification of sand particles measuring device is electrometer;
Described electronic balance is provided with Faraday cylinder, and described electrometer is connected with Faraday cylinder wire;
Be provided with above described Faraday cylinder into sand tube; Described Faraday cylinder, electrometer, computer and Faraday cylinder are packaged in case, described in enter sand tube and be exposed to outside case.
2. stream grains of sand specific charge real-time measurement system according to claim 1, is characterized in that: described electrometer is connected with computer by data line with electronic balance.
3. stream grains of sand specific charge real-time measurement system according to claim 1, is characterized in that: described electronic balance, electrometer are connected with storage battery with computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110156068.5A CN102323493B (en) | 2011-06-13 | 2011-06-13 | A kind of stream grains of sand specific charge real-time measurement system |
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| CN201110156068.5A CN102323493B (en) | 2011-06-13 | 2011-06-13 | A kind of stream grains of sand specific charge real-time measurement system |
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| CN102323493A CN102323493A (en) | 2012-01-18 |
| CN102323493B true CN102323493B (en) | 2015-09-30 |
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| CN102879650B (en) * | 2012-09-29 | 2015-05-27 | 兰州大学 | Intelligent range-adjustable sandstorm electric field measuring system based on shielded probe |
| CN103163388B (en) * | 2013-03-01 | 2015-08-26 | 江苏大学 | A kind of contactless electrostatic spray specific charge measuring method and device thereof |
| CN103439589B (en) * | 2013-08-19 | 2015-10-28 | 江苏大学 | A kind of charged droplets specific charge real-time measurement apparatus easy to assemble |
| CN105676010A (en) * | 2016-01-07 | 2016-06-15 | 华南农业大学 | Device for measuring droplet charge-mass ratio of electrostatic spraying droplets |
| CN105891616B (en) * | 2016-06-15 | 2018-06-15 | 北京航空航天大学 | It is a kind of to study charged particle and the experimental provision of flame interaction |
| CN108120602A (en) * | 2017-12-11 | 2018-06-05 | 南京航空航天大学 | A kind of aero-engine air intake duct sand dust inhalation (inhalatio) electrostatic monitoring experimental bench |
| CN108107282B (en) * | 2018-02-01 | 2023-11-03 | 中国石油大学(北京) | Device and method for measuring electrostatic occurrence of collision particles |
| CN109444562B (en) * | 2018-11-01 | 2021-03-16 | 华北电力大学（保定） | Measuring system and method for measuring sand charge quantity |
| CN111536766B (en) * | 2020-04-17 | 2021-07-16 | 中国兵器工业火炸药工程与安全技术研究院 | Automatic detection device for saturated electrostatic charge amount in hot air drying process of energetic material |
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| CN201837687U (en) * | 2010-09-03 | 2011-05-18 | 兰州大学 | Two-particle-impact live line measurement device |
| CN202110223U (en) * | 2011-06-13 | 2012-01-11 | 兰州大学 | Real-time measuring system for charge-to-mass ratio of sand grains of sand flow |
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| CN102323493A (en) | 2012-01-18 |
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