CN106768166A - A kind of irrigation system and the soil evaporativeness sensing device for irrigation system - Google Patents
A kind of irrigation system and the soil evaporativeness sensing device for irrigation system Download PDFInfo
- Publication number
- CN106768166A CN106768166A CN201710097059.0A CN201710097059A CN106768166A CN 106768166 A CN106768166 A CN 106768166A CN 201710097059 A CN201710097059 A CN 201710097059A CN 106768166 A CN106768166 A CN 106768166A
- Authority
- CN
- China
- Prior art keywords
- circuit
- irrigation system
- soil
- vaporization chamber
- sensing device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
Abstract
The invention discloses irrigation system and the soil evaporativeness sensing device for irrigation system, the device increased can irrigate when retaining retaining room, the water of retaining room can enter vaporization chamber by the through hole of bottom, vaporization chamber fills water sucting medium to simulate the evaporation situation of soil, continuous evaporation with vaporization chamber to moisture, the water level of retaining room and vaporization chamber also constantly declines, condensate tank of dehumidifier can determine whether evaporation situation by detecting the water level of retaining room and/or vaporization chamber, that is the application judges evaporation capacity by sensed water level change, compared to traditional technology by detecting the humidity of soil to judge evaporation capacity, the SEA LEVEL VARIATION of retaining room and/or vaporization chamber can more accurately react the evaporation situation of soil, therefore accuracy of detection is higher.
Description
Technical field
Passed the present invention relates to automatic irrigation field, more particularly to irrigation system and the soil evaporativeness for irrigation system
Induction device.
Background technology
With the continuous growth of greening installation quantity, the demand using automatic irrigation is also more and more.In order to realize certainly
Dynamicization is irrigated, and essential must detect to the evaporation capacity of soil, heavy irrigation otherwise just occurs or irrigates not
The problem of foot.
Nowadays, the method that the evaporation capacity of soil is detected is mainly and the humidity of soil is detected, usually
Two probes are inserted into soil, the resistance value between two probes is then detected, soil to be detected is judged according to resistance value
The evaporation capacity of earth.But, this detecting system easily produces erroneous judgement, produces the reason for judging by accident to have：(1) detection is that humidity is entered
Row detection, in actual use, because ponding can flow to lower soil, primary lower layer soil still possesses certain water,
The variable quantity of the humidity of upper layer of soil just less, therefore, the humidity condition of upper layer of soil can not preferable reactive evaporation amount
Situation.(2) because probe carries electric polarity in detection, therefore equivalent to constantly being ionized to the moisture in soil, and
Water in soil carries substantial amounts of mineral ion, and these ions can be enriched at probe, and the surface of final probe can form mineral
Layer, and then the resistance value between two probes is have impact on, influence accuracy of detection.(3) humidity variables for detecting are a simulations
There is faintly band in variable, judgement of the detection circuit to analog electrical energy, be susceptible to erroneous judgement.
Therefore, the evaporation capacity accuracy of detection of existing irrigation system is not enough, and automatic irrigation effect is poor.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of soil evaporation for irrigation system
Amount sensing device and the irrigation system based on the sensor, its judgement precision that can improve evaporation capacity so that irrigation system from
Dynamicization is irrigated more efficient.
The purpose of the present invention is realized using following technical scheme：
A kind of soil evaporativeness sensing device for irrigation system, including being capable of the retaining when soil to be measured is irrigated
Retaining room and vaporization chamber, the retaining room are connected with vaporization chamber bottom via through holes, and water sucting medium is filled with the vaporization chamber, and
The surface of vaporization chamber is formed as evaporating surface, and condensate tank of dehumidifier is provided with the vaporization chamber and/or the retaining room.
Wherein, the condensate tank of dehumidifier includes detection circuit and two probes being connected with detection circuit, detects circuit
During startup, two electric polarities of probe are different, so that two probes are mutually conducted when being submerged.
Wherein, the detection circuit includes oscillating circuit, and the oscillating circuit makes two electric polarity cycle sexual intercourses of probe
For change.
Wherein, the detection circuit also includes decision circuitry and duplex relay K2, the duplex relay K2 include with
First switch K2--1 of positive electrode connection and the second switch K2--2 being connected with negative electrode, the oscillating circuit controls institute
State ganged switch and periodically switch between first state and the second state, so that the first switch K2--1 and the second switch
K2--2 is periodically alternately connected with two probes, and the decision circuitry judges the first switch K2--1 of duplex relay K2
And second switch K2--2 between whether form path.
Wherein, the water sucting medium is the medium without solute.
Wherein, the water sucting medium is chemical fibre.
A kind of irrigation system, including magnetic valve are also provided, irrigation system spray irrigation, also includes when the magnetic valve is opened
Foregoing soil evaporativeness sensing device, the magnetic valve is not turned in the detection electric circuit inspection to two described probes
It is that can just open.
Wherein, also including intensity monitor circuit, the intensity monitor electric circuit inspection to intensity of illumination is in preset range value
When interior, then start the intensity monitor circuit.
Wherein, the intensity monitor circuit includes illumination sample circuit, first comparator circuit and the second comparator circuit,
The first comparator circuit exports high level, second comparator when the sampled voltage of illumination sample circuit is less than threshold value
Circuit exports high level when the sampled voltage of illumination sample circuit is higher than threshold value, and the detection circuit is in first comparator circuit
Output end and the second comparator circuit output end connect altogether after formed intensity monitor circuit output end.
Wherein, output is extremely used to control electromagnetism after the amplified circuit of output signal and monostable circuit of the detection circuit
Second electronic switch of valve.
Compared to existing technology, the beneficial effects of the present invention are：The application increased can irrigate when retaining retaining
Room, the water of retaining room can enter vaporization chamber by the through hole of bottom, and vaporization chamber fills water sucting medium to simulate the evaporation of soil
The water level of situation, the continuous evaporation with vaporization chamber to moisture, retaining room and vaporization chamber also constantly declines, and condensate tank of dehumidifier leads to
The water level for crossing detection retaining room and/or vaporization chamber can determine whether evaporation situation, that is to say, that the application is changed by sensed water level
To judge evaporation capacity, compared to traditional technology by detecting the humidity of soil to judge evaporation capacity, retaining room and/or vaporization chamber
SEA LEVEL VARIATION can more accurately react the evaporation situation of soil, therefore accuracy of detection is higher.
Brief description of the drawings
Fig. 1 is a kind of system block diagram of irrigation system of the invention.
Fig. 2 is a kind of intensity monitor circuit diagram of irrigation system of the invention.
Fig. 3 is a kind of structural representation of the soil evaporativeness sensing device of irrigation system of the invention.
Fig. 4 is a kind of detection circuit diagram of the soil evaporativeness sensing device of irrigation system of the invention.
In figure：1 --- --- soil evaporativeness sensing device, 21 --- retaining room, 22 --- steaming of intensity monitor circuit, 2
Hair room, 23 --- through hole, 24 --- probe, 25 --- oscillating circuit, 26 --- duplex relay K2,27 --- decision circuitry,
3 --- magnetic valve.
Specific embodiment
Below, with reference to accompanying drawing and specific embodiment, the present invention is described further：
A kind of irrigation system is present embodiments provided, as shown in figure 1, the irrigation system is broadly divided into three parts：Light intensity
Observation circuit 1, soil evaporativeness sensing device 2 and magnetic valve 3.
Primarily to making irrigation system, only light intensity is in preset range value to intensity monitor circuit in sunrise, sunset
Special time period starts.As shown in Fig. 2 the circuit is by an integrated twin voltage comparator U1 (LM393), an integrated electronic is opened
K1 (TW8778) is closed, a photo resistance RG and some resistance are constituted.
LM393 has 8 pin, wherein 1., 2., 3. pin constitutes right side voltage comparator, 5., 6., 7. pin constitutes left side voltage
Comparator.What usual left and right sides voltage comparator was single use, during exclusive use, voltage relationship such as table one between them,
Table two：
Table one：The voltage relationship table two of right side voltage comparator：The voltage relationship of left side voltage comparator
Present design is then to merge left and right sides voltage comparator to use.The auxiliary circuit of comparator includes three groups
Resistance bridge arm：R7-R2, R8-RG, R9-R1, just reaching usual two voltage comparators needs with four groups of conventions of resistance bridge arm.
Due to being connected on R8-RG bridge arms 3. being coupled together with 6. pin, R8-RG bridge arms are made to become the public bridge of both sides voltage comparator
Arm.With the negative input end of left side voltage comparator 6. 3. R8-RG bridge arms be connected on the positive input terminal of right side voltage comparator respectively.Shape
Into following relational expression：V 3.=V 6.=Vrg, V 2.=VR1, V 5.=VR2 and VR1<VR2.Simultaneously 1. being coupled together with 7. pin
Form common output end vo, control electronic switch (TW8778), following equation of then getting back：V 1.=V 7.=Vo.Both sides
After voltage comparator merges use, the voltage relationship of voltage comparator becomes such as table three.
Table three：3. with 6., 1. be 7. connected respectively after voltage comparator voltage relationship
That is, using this intensity monitor circuit 1, only in VR1<Vrg<During VR2, system can just send high level
Triggering integrated electronic switch K1, therefore, only in light intensity neither it is too strong, nor integrated electronic could be triggered when too weak
Switch K1, as long as reasonably setting VR1 and VR2, it becomes possible to make integrated electronic switch K1 only in sunset, at sunrise compared with
It is activated in the small period.
Using above-mentioned intensity monitor circuit, when light intensity is not in the preset range, system it is only necessary to intensity monitor electricity
Road powers, it is not necessary to the power on circuitry such as follow-up soil evaporativeness sensing device, the probe of soil evaporativeness sensing device
Would not be powered, this not only reduces the integration time of detecting probe surface layer mineral, and reduces the waste of electricity, improves confession
The cruising time of power supply so that the system can for a long time be changed without power supply.
After integrated electronic switch K1 is triggered, soil evaporativeness sensing device 2 will be actuated to judge the steaming of soil
Hair amount, if evaporation capacity be more than preset value, system then can opens solenoid valve 3 irrigated.Specifically, as shown in figure 3, soil steams
Hair amount sensing device 2 include can when soil to be measured is irrigated the retaining room 21 of retaining and vaporization chamber 22, the retaining room 21
Connected with the bottom via through holes 23 of vaporization chamber 22, water sucting medium is filled with the vaporization chamber 22, and the surface of vaporization chamber 22 is formed
It is evaporating surface, condensate tank of dehumidifier is provided with the vaporization chamber 22 and/or the retaining room 21.Condensate tank of dehumidifier includes inspection
Slowdown monitoring circuit and two probes 24 being connected with detection circuit, during detection circuit start, two electric polarities of probe 24 are different, so that
So that two probes 24 are mutually conducted when being submerged.
As shown in figure 4, detection circuit includes decision circuitry 27, duplex relay K2 and oscillating circuit 25, duplex relay
K2 includes linked switch 26 and the coil for controlling linked switch 26, coil connection and the output end of oscillating circuit 25, links
Switch 26 include be connected with positive electrode first switch K2--1 and be connected with negative electrode second switch K2--2, it is described to shake
Swinging circuit 25 controls the ganged switch periodically to switch between first state and the second state, so that the first switch K2--1
Periodically alternately it is connected with two probes 24 with the second switch K2--2, so that two electric polarities of probe 24 are periodically
Alternately change, the decision circuitry 27 is judged between the first switch K2--1 of duplex relay K2 and the second switch K2--2
Whether path is formed, if forming path between the first switch K2--1 and the second switch K2--2, illustrate that water level does not have also
Have and drop to below preset value, if open circuit between the first switch K2--1 and the second switch K2--2, under illustrating water level
Drop to below preset value, evaporation capacity is more than preset value, it is necessary to start irrigation.Irrigate after starting, the current meeting that irrigation system sprays
Into retaining room and vaporization chamber, after sprinkling irrigation terminates, retaining room and vaporization chamber are in full water state, and evaporation capacity sensing device enters new
One wheel monitoring process.Additionally, the present embodiment increases oscillating circuit 25 to make two electric polarities of probe 24 periodically alternately change,
So, though in ponding exist some ionization mediums, for any one probe 24, its in one cycle, half period use
To adsorb electron ion, half period can then ionize the ion of its adsorption in addition, dissolve it, so, the surface of probe 24
Would not accumulation layer mineral, it is to avoid for a long time declined using rear accuracy of detection.Additionally, the output signal of detection circuit is amplified
Output is extremely used to control the second electronic switch of magnetic valve 3 after circuit and monostable circuit.
Additionally, the influence in order to further lower ponding mineral, the water sucting medium of vaporization chamber 22 can be using without molten
The medium of matter, as long as it can simulate the capillarity of soil, moisture is passed to evaporating surface.Specifically, the present embodiment
Water sucting medium use chemical fibre, so not only avoid the corrosion using true soil to electrode, it also avoid using planting
Fibres itself can degrade.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of soil evaporativeness sensing device for irrigation system, it is characterised in that：Including that can be filled in soil to be measured
The retaining room of retaining when irrigating and vaporization chamber, the retaining room connect with vaporization chamber bottom via through holes, are filled with the vaporization chamber
Water sucting medium, and the surface of vaporization chamber is formed as evaporating surface, and water level detecting is provided with the vaporization chamber and/or the retaining room
Device.
2. a kind of soil evaporativeness sensing device for irrigation system as claimed in claim 1, it is characterised in that：The water
Level detecting apparatus include detection circuit and two probes being connected with detection circuit, during detection circuit start, two electricity of probe
Polarity is different, so that two probes are mutually conducted when being submerged.
3. a kind of soil evaporativeness sensing device for irrigation system as claimed in claim 2, it is characterised in that：The inspection
Slowdown monitoring circuit includes oscillating circuit, and the oscillating circuit makes two electric polarities of probe periodically alternately change.
4. a kind of soil evaporativeness sensing device for irrigation system as claimed in claim 3, it is characterised in that：The inspection
Slowdown monitoring circuit also includes that decision circuitry and duplex relay K2, the duplex relay K2 include that be connected with positive electrode first opens
K2--1 and the second switch K2--2 being connected with negative electrode is closed, the oscillating circuit controls the ganged switch in first state
And second periodically switch between state so that the first switch K2--1 and the second switch K2--2 periodically with two probes
Alternately connect, the decision circuitry judges that the first switch K2--1 and second of duplex relay K2 is between switching K2--2
No formation path.
5. a kind of soil evaporativeness sensing device for irrigation system as claimed in claim 1, it is characterised in that：The suction
Aqueous medium is the medium without solute.
6. a kind of soil evaporativeness sensing device for irrigation system as claimed in claim 1, it is characterised in that：The suction
Aqueous medium is chemical fibre.
7. a kind of irrigation system, including magnetic valve, irrigation system spray irrigation when the magnetic valve is opened, it is characterised in that：Also
Including the soil evaporativeness sensing device as described in any one in claim 1-6, the magnetic valve is in the detection circuit
Detecting when two described probes are not turned on can just open.
8. a kind of irrigation system as claimed in claim 7, it is characterised in that：Also include intensity monitor circuit, the light intensity prison
Slowdown monitoring circuit detects intensity of illumination and is in when in preset range value, then start the intensity monitor circuit.
9. a kind of irrigation system as claimed in claim 8, it is characterised in that：It is electric that the intensity monitor circuit includes that illumination is sampled
Road, first comparator circuit and the second comparator circuit, sampled voltage of the first comparator circuit in illumination sample circuit
High level is exported during less than threshold value, second comparator circuit is exported when the sampled voltage of illumination sample circuit is higher than threshold value
High level, the detection circuit is formed after the output end of first comparator circuit and the output end of the second comparator circuit connect altogether
The output end of intensity monitor circuit.
10. a kind of irrigation system as claimed in claim 7, it is characterised in that：The output signal of the detection circuit is amplified
Output is extremely used to control the second electronic switch of magnetic valve after circuit and monostable circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097059.0A CN106768166A (en) | 2017-02-22 | 2017-02-22 | A kind of irrigation system and the soil evaporativeness sensing device for irrigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710097059.0A CN106768166A (en) | 2017-02-22 | 2017-02-22 | A kind of irrigation system and the soil evaporativeness sensing device for irrigation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106768166A true CN106768166A (en) | 2017-05-31 |
Family
ID=58957871
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| CN201710097059.0A Pending CN106768166A (en) | 2017-02-22 | 2017-02-22 | A kind of irrigation system and the soil evaporativeness sensing device for irrigation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020234607A1 (en) * | 2019-05-22 | 2020-11-26 | Micropropagation Services (E.M.) Limited | Methods for cultivating sphagnum |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272256Y (en) * | 1996-06-12 | 1998-01-14 | 孙杨 | Fully automatic steaming water-boiling heater |
| CN1233590A (en) * | 1998-04-24 | 1999-11-03 | 早川英雄 | Process for treating water and apparatus therefor |
| CN2529865Y (en) * | 2001-09-21 | 2003-01-08 | 何仁泉 | Double-potential water treatment appts. |
| US20050216129A1 (en) * | 2004-03-26 | 2005-09-29 | Clark James J | Water irrigation system with solar panel and method of controlling irrigation |
| CN101236260A (en) * | 2008-03-06 | 2008-08-06 | 中国农业科学院农田灌溉研究所 | Evaporation based irrigation prealarming device and its operation method |
| CN201740566U (en) * | 2010-08-03 | 2011-02-09 | 杭州信多达电子科技有限公司 | Water level detection device of water heater |
| CN102283082A (en) * | 2011-07-02 | 2011-12-21 | 福建农林大学 | Novel crop irrigation control device |
| CN202614638U (en) * | 2012-04-10 | 2012-12-19 | 四川省林业科学研究院 | High-accuracy water surface evaporation automatic tester |
| CN202890048U (en) * | 2012-11-23 | 2013-04-24 | 无锡职业技术学院 | Flowerpot capable of carrying out irrigation automatically |
| CN103148909A (en) * | 2013-03-22 | 2013-06-12 | 中国农业科学院农田灌溉研究所 | Farm irrigation indicating device and use method thereof |
| CN203164155U (en) * | 2013-02-04 | 2013-08-28 | 广东达华节水科技股份有限公司 | Soil humidity induction device |
| CN103612643A (en) * | 2013-11-15 | 2014-03-05 | 山东华腾环保科技有限公司 | Train washing water treatment and reuse method and device |
| CN203519852U (en) * | 2013-07-17 | 2014-04-02 | 方性良 | Automatic evaporator |
| CN104950016A (en) * | 2014-12-03 | 2015-09-30 | 佛山市云米电器科技有限公司 | TDS (Total Dissolved Solid) detection method and device |
| CN105067681A (en) * | 2015-07-28 | 2015-11-18 | 首都师范大学 | Soil water storage capacity measuring instrument |
| CN204944611U (en) * | 2015-09-29 | 2016-01-06 | 广东美的暖通设备有限公司 | Water level detection circuit and water level detecting system |
| CN105230451A (en) * | 2015-10-16 | 2016-01-13 | 西北农林科技大学 | Automatic irrigation forecasting device for water shortage of field crops |
| CN205320745U (en) * | 2016-01-29 | 2016-06-22 | 中乔大三农智慧农业（北京）有限公司 | Mould proof root irrigation system |
| CN207688967U (en) * | 2017-02-22 | 2018-08-03 | 梁志强 | A kind of irrigation system and the soil evaporativeness sensing device for irrigation system |
-
2017
- 2017-02-22 CN CN201710097059.0A patent/CN106768166A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272256Y (en) * | 1996-06-12 | 1998-01-14 | 孙杨 | Fully automatic steaming water-boiling heater |
| CN1233590A (en) * | 1998-04-24 | 1999-11-03 | 早川英雄 | Process for treating water and apparatus therefor |
| CN2529865Y (en) * | 2001-09-21 | 2003-01-08 | 何仁泉 | Double-potential water treatment appts. |
| US20050216129A1 (en) * | 2004-03-26 | 2005-09-29 | Clark James J | Water irrigation system with solar panel and method of controlling irrigation |
| CN101236260A (en) * | 2008-03-06 | 2008-08-06 | 中国农业科学院农田灌溉研究所 | Evaporation based irrigation prealarming device and its operation method |
| CN201740566U (en) * | 2010-08-03 | 2011-02-09 | 杭州信多达电子科技有限公司 | Water level detection device of water heater |
| CN102283082A (en) * | 2011-07-02 | 2011-12-21 | 福建农林大学 | Novel crop irrigation control device |
| CN202614638U (en) * | 2012-04-10 | 2012-12-19 | 四川省林业科学研究院 | High-accuracy water surface evaporation automatic tester |
| CN202890048U (en) * | 2012-11-23 | 2013-04-24 | 无锡职业技术学院 | Flowerpot capable of carrying out irrigation automatically |
| CN203164155U (en) * | 2013-02-04 | 2013-08-28 | 广东达华节水科技股份有限公司 | Soil humidity induction device |
| CN103148909A (en) * | 2013-03-22 | 2013-06-12 | 中国农业科学院农田灌溉研究所 | Farm irrigation indicating device and use method thereof |
| CN203519852U (en) * | 2013-07-17 | 2014-04-02 | 方性良 | Automatic evaporator |
| CN103612643A (en) * | 2013-11-15 | 2014-03-05 | 山东华腾环保科技有限公司 | Train washing water treatment and reuse method and device |
| CN104950016A (en) * | 2014-12-03 | 2015-09-30 | 佛山市云米电器科技有限公司 | TDS (Total Dissolved Solid) detection method and device |
| CN105067681A (en) * | 2015-07-28 | 2015-11-18 | 首都师范大学 | Soil water storage capacity measuring instrument |
| CN204944611U (en) * | 2015-09-29 | 2016-01-06 | 广东美的暖通设备有限公司 | Water level detection circuit and water level detecting system |
| CN105230451A (en) * | 2015-10-16 | 2016-01-13 | 西北农林科技大学 | Automatic irrigation forecasting device for water shortage of field crops |
| CN205320745U (en) * | 2016-01-29 | 2016-06-22 | 中乔大三农智慧农业（北京）有限公司 | Mould proof root irrigation system |
| CN207688967U (en) * | 2017-02-22 | 2018-08-03 | 梁志强 | A kind of irrigation system and the soil evaporativeness sensing device for irrigation system |
Non-Patent Citations (1)
| Title |
|---|
| 邓柳: "一种高可靠性电极式水位传感器模型研究", 电子测试, no. 15, pages 106 - 108 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020234607A1 (en) * | 2019-05-22 | 2020-11-26 | Micropropagation Services (E.M.) Limited | Methods for cultivating sphagnum |
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