CN210005426U

CN210005426U - soil nutrient quick detector

Info

Publication number: CN210005426U
Application number: CN201920077970.XU
Authority: CN
Inventors: 赵涛
Original assignee: Henan Vocational College of Water Conservancy and Environment
Current assignee: Henan Vocational College of Water Conservancy and Environment
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2020-01-31
Anticipated expiration: 2029-01-17

Abstract

The utility model provides an soil nutrient short-term test appearance, its constitution includes be equipped with micro printer, button, liquid distribution groove, detection tank, crushing tank, USB interface, microprocessor in the detection tank bottom is equipped with multiple test probe, is equipped with the rubbing crusher in crushing tank, and the USB interface sets up in the side of detection tank, and the upper cover is equipped with display screen, spectrum detection device, LED lamp of group, and spectrum detection device includes light source, light filter, colorimetric groove, photoelectric sensor, silicon photocell, signal processing circuit its beneficial effect is that the utility model discloses compact structure, the detection mode is various, and the consumption is low, is fit for the long-time detection in field.

Description

soil nutrient quick detector

Technical Field

The utility model relates to an agricultural field especially indicates soil nutrient short-term test appearance.

Background

The soil nutrient fast detector is mainly used for detecting water, salinity, pH value, total nitrogen, ammonium nitrogen, alkaline hydrolysis nitrogen, available phosphorus, available potassium, calcium magnesium, boron and the like in soil and testing the content of nitrogen, phosphorus and potassium in fertilizer, is widely applied to the fields of various levels of agricultural detection centers, agricultural research institutes, fertilizer production, agricultural material management, agricultural technical service, planting bases and the like.

However, in the existing nutrient detector, the volume is too large, the carrying is inconvenient, the detection efficiency is seriously influenced when the volume of the detector is too large during field detection, and in the detection process, most of detections adopt a single detection means, such as spectrum detection or ion detection, and adopt a single detection mode, and the obtained result is influenced by other factors, so that the data is inaccurate, and further the subsequent data processing is influenced.

When the spectrum detection is adopted, the sizes of the collected soil particles are different, so that the reflectivity of the soil to the spectrum is different, and the detection result error is larger.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that exists among the prior art, provide kinds of soil nutrient short-term test appearance.

The technical scheme of the utility model is realized like this:

quick detector for soil nutrient, which comprises a detection box and an upper cover, the detection box and the upper cover are movably connected by hinges, a micro printer, a key, a liquid distribution groove, a detection groove, a crushing groove, a USB interface and a microprocessor are arranged in the detection box, a plurality of detection probes are arranged at the bottom of the detection groove, a crusher is arranged in the crushing groove, the USB interface is arranged at the side of the detection box, a display screen, a spectrum detection device and groups of LED lamps are arranged on the upper cover, and the spectrum detection device comprises a light source, a light filter, a colorimetric groove, a photoelectric sensor, a silicon photocell and a signal processing circuit.

The signal processing circuit is electrically connected with the key, the micro printer and the display screen to output a detection result.

And the detection probe in the detection groove is a soil nutrient detection probe to detect the PH content, the nitrogen content, the phosphorus content and the potassium content in soil.

The middle part of the pulverizer is provided with a rotating blade, and when the detection box is buckled with the upper cover, the LED lamp is positioned right above the pulverizer.

The microprocessor comprises types of STM32F105 series single-chip microcomputers.

The detection probe is connected with the microprocessor.

And a lithium battery for supplying power to the equipment is also arranged in the detection box.

The utility model has the advantages that:

1. the utility model has high detection precision, can adopt two detection modes, and avoids the detection abnormity caused by unexpected factors;

2. the crushing device and the liquid preparation tank are arranged in the detection box, so that more situations which are inconvenient to detect, such as uneven soil particles or overlarge soil moisture content, can be treated during field detection;

3. the device adopts the processor with the AD conversion function, and the power consumption of the device is greatly reduced due to a simplified circuit, so that the field continuous detection capability is improved;

4. the space on upper cover and the detection box is utilized, the volume of the whole detector is reduced, and the carrying is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a top view of the present invention;

FIG. 2 is a functional block diagram of a photodetection device;

fig. 3 is a schematic circuit structure diagram of the photodetection device.

Detailed Description

The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of , but not all embodiments.

As shown in figures 1-3 of the drawings,

quick detector for soil nutrient, which comprises a detecting box 1 and an upper cover 2, the detecting box 1 and the upper cover 2 are movably connected by hinges, a micro printer 3, a key 4, a liquid distribution tank 5, a detecting tank 6, a crushing tank 7, a USB interface 8 and a microprocessor are arranged in the detecting box 1, a plurality of detecting probes 9 are arranged at the bottom of the detecting tank 6, a crusher is arranged in the crushing tank 7, the USB interface 8 is arranged at the side of the detecting box 1, a display screen 10, a spectrum detecting device 11 and a group LED lamp 12 are arranged on the upper cover 2, and the spectrum detecting device 11 comprises a light screen 15, a light source, a light filter 13, a colorimetric tank 14, a photoelectric sensor, a silicon photocell and a signal processing circuit.

The signal processing circuit is electrically connected with the key 4, the micro printer 3 and the display screen 10 to output the detection result.

The detection probe 9 in the detection groove 6 is soil

And (4) dividing the detection probes to detect the PH content, the nitrogen content, the phosphorus content and the potassium content in the soil.

The middle part of the crusher is provided with a rotating blade 16, and when detecting

Health preserving

When the box 1 is buckled with the upper cover 2, the LED lamp 12 is positioned right above the crusher.

The microprocessor is kinds of single chip microcomputer including STM32F105 series.

The detection probe 9 is connected with the microprocessor.

A lithium battery 17 for supplying power to the equipment is also arranged in the detection box 1.

The utility model discloses in, when carrying out the spectral detection, put into crushing groove 7 with soil, smash, make the soil granule become very even, and simultaneously, the moisture in the soil also can be got rid of to LED, the result that detects like this will be more accurate, the light that the light source sent is absorbed by the solution that awaits measuring in the colorimetric groove after passing the light filter and takes place the decay and inject the silicon photocell on, the silicon photocell converts the decay of light signal into the change of signal of telecommunication, microprocessor determines the concentration of nutrient in the solution through detecting the signal of telecommunication change, according to lambert-beer law, promptly: a = K × C × L (formula: A: absorbance, K: absorption coefficient, C: solution concentration, L: solution thickness) gives C = A/KL, and the solution concentration can be obtained by measuring the absorbance A.

When the detection tank 6 is used for detection, quantitative soil is firstly extracted from the solution preparation tank 5 to obtain soil supernatant, and then the soil supernatant is poured into the detection tank 6 for detection.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

The rapid soil nutrient detector comprises a detection box and an upper cover, wherein the detection box is movably connected with the upper cover through a hinge, and the rapid soil nutrient detector is characterized in that a micro printer, a key, a liquid distribution groove, a detection groove, a crushing groove, a USB interface and a microprocessor are arranged in the detection box, a plurality of detection probes are arranged at the bottom of the detection groove, a crusher is arranged in the crushing groove, the USB interface is arranged at the side of the detection box, a display screen, a spectrum detection device and LED lamps are arranged on the upper cover, and the spectrum detection device comprises a light source, an optical filter, a colorimetric groove, a photoelectric sensor, a silicon photocell and a signal processing circuit.
2. The rapid soil nutrient detector of claim 1, wherein: the signal processing circuit is electrically connected with the key, the micro printer and the display screen to output a detection result.
3. The rapid soil nutrient detector of claim 1, wherein: and the detection probe in the detection groove is a soil nutrient detection probe to detect the PH content, the nitrogen content, the phosphorus content and the potassium content in soil.
4. The rapid soil nutrient detector of claim 1, wherein: the middle part of the pulverizer is provided with a rotating blade, and when the detection box is buckled with the upper cover, the LED lamp is positioned right above the pulverizer.
5. The rapid soil nutrient detector according to claim 1, wherein the microprocessor comprises types of STM32F105 series single-chip microcomputers.
6. The rapid soil nutrient detector of claim 1, wherein: the detection probe is connected with the microprocessor.
7. The rapid soil nutrient detector of claim 1, wherein: and a lithium battery for supplying power to the equipment is also arranged in the detection box.