CN204101437U - Chlorophyll meter - Google Patents
Chlorophyll meter Download PDFInfo
- Publication number
- CN204101437U CN204101437U CN201420489959.1U CN201420489959U CN204101437U CN 204101437 U CN204101437 U CN 204101437U CN 201420489959 U CN201420489959 U CN 201420489959U CN 204101437 U CN204101437 U CN 204101437U
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- monitor station
- light source
- led light
- chlorophyll meter
- optical transmitting
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Abstract
The utility model discloses a kind of Chlorophyll meter, be intended to solve prior art Determination of Chlorophyll surveying instrument and be easily subject to the interference of extraneous light, unstable properties, technical matters that testing result accuracy is not high.It comprises housing, detection part, and being arranged at the testing circuit plate of enclosure interior, detection part comprises monitor station and is arranged at the detection head above monitor station, and detection head one end is connected by rotating shaft with housing, the other end is provided with optical transmitting set, is provided with shading passage in the bottom of optical transmitting set; Monitor station is provided with receiver with shading passage corresponding position; Optical transmitting set comprises a red LED light source and an infrared LED light source, the below of red LED light source is provided with Red lightscreening plate, the below of infrared LED light source is provided with infrared fileter.The utility model effectively can avoid the interference of extraneous light, and make the performance of instrument accuracy that is more stable, testing result higher, the scope of application is more extensive.
Description
Technical field
The utility model relates to plant chlorophyll detection technique field, is specifically related to a kind of Chlorophyll meter.
Background technology
Chlorophyll is the main matter of green plants absorption when carrying out photosynthesis, conversion and transmission luminous energy, and the chlorophyll content in plant leaf blade and the photosynthesis of plant, nutrient absorption are closely related, are important indicators that can reflect vegetation growth state.Existing plant chlorophyll assay method mainly contains spectrophotometric method and SPAD rapid method, Plants with Spectrophotometry chlorophyll content is the most accurate, but needing first to be extracted by the chlorophyll in plant leaf blade measures again, testing process is complicated, detection required time is long; SPAD rapid method is then the chlorophyll content utilizing photoelectric sensor directly to measure plant blade, has the advantage drawing testing result, harmless plant leaf blade fast, is widely used in plant Growing state survey process.Existing employing photoelectric sensor carries out the instrument of chlorophyll detection, and be easily subject to the interference of extraneous light, stability of instrument is poor, thus causes testing result accuracy not high.
Summary of the invention
The technical problems to be solved in the utility model is to provide that a kind of antijamming capability is strong, stable performance, Chlorophyll meter that testing result accuracy is high.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
Design a kind of Chlorophyll meter, comprise housing, detection part, and be arranged at the testing circuit plate of described enclosure interior, described detection part comprises the monitor station protruding from shell one end, and the detection head be arranged at above described monitor station, described detection head one end is connected by rotating shaft with described housing, and the other end is provided with optical transmitting set, is provided with shading passage in the bottom of described optical transmitting set; Described monitor station is provided with receiver with described shading passage corresponding position, and described receiver is electrically connected with described testing circuit plate;
Described optical transmitting set comprises the infrared LED light source that red LED light source that a wavelength is 650nm and wavelength are 940nm, being provided with a wavelength in the below of described red LED light source is the Red lightscreening plate of 650nm, and it is the infrared fileter of 940nm that the below of described infrared LED light source is provided with a wavelength; Also be provided with operation push-button on the housing, and all corresponding with the described testing circuit plate display screen that connects and battery case.
Preferably, limiting component is provided with in the one or both sides of described monitor station, described limiting component comprises banking stop, the chute be arranged on described monitor station sidewall, and the lower end installation by adhering of described banking stop, in described chute, is provided with push-and-pull button in the side of described banking stop.
Preferably, described Red lightscreening plate and described infrared fileter are bandpass filter.
Preferably, the bandwidth of described Red lightscreening plate and described infrared filtering is 10nm.
Preferably, described monitor station is also provided with temperature sensor and humidity sensor, described temperature sensor and humidity sensor are corresponding with described testing circuit plate to be respectively connected.
Preferably, described shading passage is made up of black rubber.
Preferably, in described battery case, rechargeable battery is installed, is provided with charging socket on the housing.
The beneficial effects of the utility model are:
1. be provided with shading passage in the bottom of optical transmitting set, the interference of extraneous light can be stoped, the stability in the instrument course of work is increased; Optical filter is set in the below of light source, can ensures further to make the band wavelength of light needed for detection that optical transmitting set sends testing result more accurate, reduce error.
2. limiting component is set on monitor station, when detection head can be avoided to fasten, left and right displacement occurs downwards, and cause optical transmitting set and receiver can not the accurate corresponding problem causing measuring error to increase; Banking stop can be moved horizontally in chute by push-and-pull button, thus limits the position of blade to be measured on monitor station, enables this instrument measure the blade of different size and the diverse location of blade, makes its scope of application more extensive.
3. the setting of temperature sensor and humidity sensor, can detect the temperature and humidity of blade simultaneously, is convenient to the growing state more fully understanding blade.
4. shading passage adopts black rubber to make, and can play the effect of shading better; Built-in rechargeable battery in battery case, can charge repeatedly, energy-conserving and environment-protective, avoids often changing the inconvenience that battery brings.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of the utility model Chlorophyll meter.
Fig. 2 is the structural representation of optical transmitting set and receiver in the utility model Chlorophyll meter.
Wherein, 1 is housing; 2 is monitor station; 3 is detection head; 4 is optical transmitting set; 5 is shading passage; 6 is receiver; 7 is red LED light source; 8 is infrared LED light source; 9 is Red lightscreening plate; 10 infrared fileters; 11 is operation push-button; 12 is display screen; 13 is battery case; 14 is banking stop; 15 is chute; 16 is push-and-pull button; 17 is temperature sensor; 18 is humidity sensor.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described, but the following example is only used to describe embodiment of the present utility model in detail, and limits scope of the present utility model never in any form.
Embodiment 1: a kind of Chlorophyll meter, comprises housing 1, detection part, and is arranged at the testing circuit plate of housing 1 inside, and detection part comprises the monitor station 2 protruding from housing 1 one end, and is arranged at the detection head 3 above monitor station 2.Detection head 3 one end is connected by rotating shaft with housing 1, and the other end is provided with optical transmitting set 4, is provided with shading passage 5 in the bottom of optical transmitting set 4, and shading passage 5 is made up of black rubber; Monitor station 2 is provided with receiver 6 with shading passage 5 corresponding position, and receiver 6 is electrically connected with testing circuit plate.Optical transmitting set 4 comprises the infrared LED light source 8 that red LED light source 7 that a wavelength is 650nm and wavelength are 940nm, be provided with the Red lightscreening plate 9 that a wavelength is 650nm in the below of red LED light source 7, be provided with the infrared fileter 10 that a wavelength is 940nm in the below of infrared LED light source 8; Red lightscreening plate 9 and infrared fileter 10 are the bandpass filter that bandwidth is 10nm.Housing 1 is also provided with operation push-button 11, and all corresponding with the testing circuit plate display screen 12 that connects and battery case 13.
Embodiment 2: a kind of Chlorophyll meter, is with the difference of embodiment 2, and monitor station 2 is provided with temperature sensor 17 and humidity sensor 18, and temperature sensor 17 and humidity sensor 18 are corresponding with testing circuit plate to be respectively connected.
Embodiment 3: a kind of Chlorophyll meter, be with the difference of embodiment 1, limiting component is provided with in the side of monitor station 2, limiting component comprises banking stop 14, the chute 15 be arranged on monitor station sidewall, the lower end installation by adhering of banking stop 14, in chute 15, is provided with push-and-pull button 16 in the side of banking stop 14.
Embodiment 4: a kind of Chlorophyll meter, is with the difference of embodiment 3, is provided with limiting component in the both sides of monitor station 2.
Embodiment 5: a kind of Chlorophyll meter, is with the difference of embodiment 1, is provided with rechargeable battery, housing is provided with charging socket in battery case 13.
Equipment component involved in the embodiment above if no special instructions, is conventional equipment element.
The specific works mode of the utility model Chlorophyll meter is: start instrument by power key, be fastened on monitor station 2 by detection head 3, instrument is calibrated.After calibration, lift detection head 3, be placed in by blade to be measured directly over receiver 6 on monitor station 2, again occlusion detection 3, the shading passage now on detection head 3 directly touches blade to be detected, and optical transmitting set 4 is started working.Red LED light source 7 first launches light, then infrared LED light source emission of light again, light is penetrated on blade to be measured through shading passage 5 successively, the optical filter Red lightscreening plate 9 arranged below light source, infrared fileter 10 can filter light, the interference can avoiding extraneous light of shading passage 5, make testing result more accurately, reduce error.Light is received device 6 through blade to be measured successively and receives, and light signal is converted into simulating signal and is sent in testing circuit.Measuring-signal for detecting blade face temperature and humidity, and is transferred to testing circuit by temperature sensor 17 and humidity sensor 18.In testing circuit, simulating signal is exaggerated device and amplifies, and converts digital signal to by analog/digital converter, and digital signal, by microprocessor processes, obtains testing result and exports on a display screen.When the blade that measurement vein is more, can detect multiple regions of same blade, the testing result drawn is averaged.
This instrument can detect the chlorophyll relative content (SPAD) of blade, blade face temperature and leaf wetness, and calculates the nitrogen content of blade according to chlorophyllous relative content.Its measurement range is as follows: chlorophyll: 0.0-99.9SPAD; Nitrogen content: 0.0-99.9mg/g; Leaf wetness: 0. 0-99. 9RH%; Blade face temperature :-10-99.9 DEG C.Measuring accuracy is: chlorophyll: within ± 3.0 SPAD units (under room temperature, SPAD value is between 0-50); Nitrogen content: ± 5%; Leaf wetness: ± 5%; Blade face temperature: ± 0.5 DEG C.Repeatability is: chlorophyll: within ± 0.3 SPAD unit; Nitrogen content: ± 0.5 unit; Leaf wetness: ± 0.5 unit; Blade face temperature: ± 0.2 DEG C.This instrument can realize quick nondestructive plant living body and detect, and does not affect the growth of plant, immediately can measure the chlorophyll relative content of plant, understands the growing state of plant, and has the high advantage of testing result accuracy.
In conjunction with the accompanying drawings and embodiments embodiment of the present utility model is elaborated above, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also carry out changing or changing under the prerequisite not departing from the utility model aim.
Claims (7)
1. a Chlorophyll meter, comprise housing, detection part, and be arranged at the testing circuit plate of described enclosure interior, it is characterized in that, described detection part comprises the monitor station protruding from shell one end, and is arranged at the detection head above described monitor station, and described detection head one end is connected by rotating shaft with described housing, the other end is provided with optical transmitting set, is provided with shading passage in the bottom of described optical transmitting set; Described monitor station is provided with receiver with described shading passage corresponding position, and described receiver is electrically connected with described testing circuit plate;
Described optical transmitting set comprises the infrared LED light source that red LED light source that a wavelength is 650nm and wavelength are 940nm, being provided with a wavelength in the below of described red LED light source is the Red lightscreening plate of 650nm, and it is the infrared fileter of 940nm that the below of described infrared LED light source is provided with a wavelength;
Also be provided with operation push-button on the housing, and all corresponding with the described testing circuit plate display screen that connects and battery case.
2. Chlorophyll meter according to claim 1, it is characterized in that, limiting component is provided with in the one or both sides of described monitor station, described limiting component comprises banking stop, the chute be arranged on described monitor station sidewall, the lower end installation by adhering of described banking stop, in described chute, is provided with push-and-pull button in the side of described banking stop.
3. Chlorophyll meter according to claim 1, is characterized in that, described Red lightscreening plate and described infrared fileter are bandpass filter.
4. Chlorophyll meter according to claim 3, is characterized in that, the bandwidth of described Red lightscreening plate and described infrared filtering is 10nm.
5. Chlorophyll meter according to claim 1, is characterized in that, described monitor station is also provided with temperature sensor and humidity sensor, and described temperature sensor and humidity sensor are corresponding with described testing circuit plate to be respectively connected.
6. Chlorophyll meter according to claim 1, is characterized in that, described shading passage is made up of black rubber.
7. Chlorophyll meter according to claim 1, is characterized in that, is provided with rechargeable battery, is provided with charging socket on the housing in described battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489959.1U CN204101437U (en) | 2014-08-28 | 2014-08-28 | Chlorophyll meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420489959.1U CN204101437U (en) | 2014-08-28 | 2014-08-28 | Chlorophyll meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204101437U true CN204101437U (en) | 2015-01-14 |
Family
ID=52269856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420489959.1U Expired - Fee Related CN204101437U (en) | 2014-08-28 | 2014-08-28 | Chlorophyll meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204101437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202023102560U1 (en) | 2023-05-11 | 2023-06-12 | Dipankar Bhattacharyay | A chlorometer device |
| CN116337823A (en) * | 2023-05-30 | 2023-06-27 | 深圳市宏浩园林建设有限公司 | Plant leaf sampling detection device and method |
-
2014
- 2014-08-28 CN CN201420489959.1U patent/CN204101437U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202023102560U1 (en) | 2023-05-11 | 2023-06-12 | Dipankar Bhattacharyay | A chlorometer device |
| CN116337823A (en) * | 2023-05-30 | 2023-06-27 | 深圳市宏浩园林建设有限公司 | Plant leaf sampling detection device and method |
| CN116337823B (en) * | 2023-05-30 | 2023-07-28 | 深圳市宏浩园林建设有限公司 | Plant leaf sampling detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20170828 |