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On-line measuring device for mixing concentration field of plant protection machine

A technology of measuring device and concentration field, applied in measuring device, instrument, fluorescence/phosphorescence, etc., can solve the problem of lack of accurate online measurement of real mixed drug flow field, so as to improve the utilization rate of pesticides, realize real-time control, and improve accuracy Effect

Inactive Publication Date: 2013-04-24
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general flow field measurement device is only suitable for offline experimental measurement, and lacks online accurate measurement of the real mixed drug flow field

Method used

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  • On-line measuring device for mixing concentration field of plant protection machine
  • On-line measuring device for mixing concentration field of plant protection machine
  • On-line measuring device for mixing concentration field of plant protection machine

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0016] 1. Hardware connection and positioning:

[0017] The laser outlet on the upper side of the solid-state laser is connected to the light inlet of the seven-joint light guide arm by bolts, the light outlet of the light guide arm is connected to the sheet plane beam shaping system by threads, and the sheet plane beam shaping system is connected to the bracket by a fixing ring and a fixing rod . The drug mixer is installed and fixed in the middle of the optical distortion correction device, and the central axis of the drug mixer is parallel to the central axis of the optical distortion correction device. The pesticide injection device is connected with the pesticide injection port of the drug mixer through the water pipe, the water injection device is connected with the water injection port of the drug mixer through the water pipe, and the mixed solution outlet of the drug mixer is connected with the spray rod through the water pipe. The optical distortion correction device...

specific Embodiment approach 2

[0025] 1. Hardware connection and positioning:

[0026] In this step, the laser excites laser light with a wavelength of 266nm, the optical filter adopts a 290nm long-pass filter, the drug mixer and the optical distortion correction device are made of quartz, and the rest are the same as step 1 of the first embodiment.

[0027] 2. Stock solution preparation

[0028] Chlorpyrifos EC was used as the stock solution.

[0029] 3. Calibration and measurement

[0030] This step is the same as Step 3 of Embodiment 1.

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Abstract

The invention provides an on-line measuring device for a mixing concentration field according to a planar laser induced fluorescent measurement principle. The on-line measuring device comprises a laser (1), a light guide arm (2), a sheet planar beam forming system (3), a light filter (4), a CCD camera (5), a mixing device (6), an optical distortion correction device (7), a computer (8) and other components. The laser is used for irradiating a laser light which forms a sheet planar light irradiating to the mixing device through the light guide arm and the sheet planar beam forming system. The wall of the mixing device is transparent. In a mixing room of the mixing device, a pesticide with the fluorescence tracer agent and water are mixed. The laser induced fluorescent light is generated by the irradiation of the sheet laser light. An optical correction apparatus is disposed out of the mixing device. A CCD camera is disposed in a vertical direction of a sheet irradiation surface to acquire fluorescent images. The concentration field of the mixing liquid is inverted according to the distribution condition of the pixel grayscale distribution of the fluorescent images. The device can solve the problem that the real-time and on-line measurement of the mixing concentration field of the plant protection machine.

Description

technical field [0001] The invention relates to the field of plant protection machinery, in particular to an on-line measuring device for the concentration field of mixed medicine of plant protection machinery. Background technique [0002] The characteristics of the online mixing of plant protection machinery are: the medicine box and the water tank are separated, and the medicine is mixed online through the mixing device. The online mixing device can change the concentration of pesticides on demand and achieve precise pesticide application, so as to save pesticides and reduce environmental pollution. In order to achieve precise drug application, the online measurement of the concentration distribution of the mixed drug is an important aspect. At present, the measurement method of solution concentration adopts the specific gravity method (density method), that is, by measuring the density of the mixed solution, if the density of the original solution and water is known, th...

Claims

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Application Information

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IPC IPC(8): G01N21/64G01N21/01
Inventor 管贤平邱白晶
Owner JIANGSU UNIV
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