Indoor measuring apparatus and method for dynamic spray deposition distribution characteristics of boom sprayer

A technology of spray deposition and distribution characteristics, applied in the field of agricultural machinery, can solve problems such as restricting the objectivity of performance evaluation of boom sprayers

Active Publication Date: 2018-08-03
NANJING AGRI MECHANIZATION INST MIN OF AGRI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0002] When the boom sprayer is working in the field, the wind speed, temperature and meteorological conditions change all the time, and at the same time, it is randomly excited from the ground, and the boom will mov

Method used

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  • Indoor measuring apparatus and method for dynamic spray deposition distribution characteristics of boom sprayer
  • Indoor measuring apparatus and method for dynamic spray deposition distribution characteristics of boom sprayer
  • Indoor measuring apparatus and method for dynamic spray deposition distribution characteristics of boom sprayer

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Experimental program
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Effect test

Embodiment 1

[0045] Such as figure 2 As shown, an indoor measurement device for dynamic spray deposition distribution characteristics of a boom sprayer includes a six-degree-of-freedom motion simulation platform 3 and a dynamic spray distribution measurement system 4. The dynamic spray distribution measurement system includes a test computer and multiple online measurements. Unit, during the test, the spray boom 2 of the sprayer is fixedly installed on the six-degree-of-freedom motion simulation platform 3 through a fixture, and the dynamic spray distribution measurement system 4 is arranged sequentially along the arm span direction of the spray boom 2 .

[0046] Such as image 3 As shown, the online measurement unit is provided with a belt conveyor 402, a first measurement capacitance sensor 410, a second measurement capacitance sensor 403, a first reference capacitance sensor 407, a second reference capacitance sensor 406, a temperature sensor and a drying device 404, the first The sig...

Embodiment 2

[0076] On the basis of Embodiment 1, this embodiment can realize the online measurement of droplet coverage, and the specific method is as follows:

[0077] (3) On-line measurement of droplet coverage:

[0078] An automatic paper feeder 409 is set above the starting end of the conveyor belt, and a piece of yellow water-sensitive paper is placed on the conveyor belt at intervals, which is set to 0.2s in the present embodiment, and the water-sensitive paper is passed through the area covered by the spray , there is a gap between the water-sensitive papers, and a camera 405 is set at the end of the conveyor belt where the water-sensitive papers are placed to automatically identify and take pictures of the passing water-sensitive papers, and transmit the collected images to the test computer 401 for image processing , analyze the droplet coverage on the water-sensitive paper, calculate the droplet coverage variation coefficient along the spray boom arm span direction and the dropl...

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Abstract

The invention discloses an indoor measuring apparatus and method for dynamic spray deposition distribution characteristics of a boom sprayer. The measuring apparatus comprises a motion simulation platform for installing a spray boom, and is characterized in that the measuring apparatus is provided with a dynamic spray distribution measuring system. The dynamic spray distribution measuring system comprises a test computer and one or more online measuring unit, the online measuring unit is provided with a belt conveyor, a measuring capacitance sensor, a reference capacitance sensor, a temperature sensor and a drying device, and signal output ends of the measuring capacitance sensor, the reference capacitance sensor and the temperature sensor are separately connected with the test computer. By adopting the measuring apparatus and method, the change of an electric signal of a capacitor is analyzed and measured, so that the spray distribution uniformity of the boom sprayer under the field operation motion state can be measured, and the optimization test of the spray boom operation parameters can be carried out; and moreover, the indoor measuring apparatus is novel in design concept, convenient in operation, easy in construction and suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and specifically relates to an indoor measuring device and method for dynamic spray deposition distribution characteristics of a boom sprayer. Background technique [0002] When the boom sprayer is working in the field, the wind speed, temperature and meteorological conditions change all the time, and at the same time, it is randomly excited from the ground, and the boom will move irregularly. The above uncertain factors will affect the test results of the spray deposition distribution characteristics of the boom , restricting the objectivity of the performance evaluation of the boom sprayer. Contents of the invention [0003] The technical purpose of the present invention is to provide an indoor measurement device and method for the dynamic spray deposition distribution characteristics of the boom sprayer, so as to solve the problems in the prior art and make the spray depositio...

Claims

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Application Information

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IPC IPC(8): G01N27/22
CPCG01N27/227
Inventor 崔龙飞薛新宇丁素明顾伟乐飞翔陈晨周立新张玲金永奎秦维彩张宋超杨风波蔡晨孔伟周良富张学进周晴晴孙竹孙涛徐阳
Owner NANJING AGRI MECHANIZATION INST MIN OF AGRI
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