CN109752488A - A kind of portable plant flow of water tester and its application method - Google Patents
A kind of portable plant flow of water tester and its application method Download PDFInfo
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- CN109752488A CN109752488A CN201811535570.5A CN201811535570A CN109752488A CN 109752488 A CN109752488 A CN 109752488A CN 201811535570 A CN201811535570 A CN 201811535570A CN 109752488 A CN109752488 A CN 109752488A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims description 52
- 238000001514 detection method Methods 0.000 claims description 28
- 230000001360 synchronised effect Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 238000009966 trimming Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 241000237858 Gastropoda Species 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 40
- 238000010586 diagram Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000005068 transpiration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000044469 Oplismenus hirtellus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000037039 plant physiology Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The present invention relates to agriculture technology of instrument and meter fields, a kind of particularly portable plant flow of water tester, a kind of portable plant flow of water tester, including holding mechanism, booster body and mechanism for testing, holding mechanism top is equipped with booster body, and booster body front end is equipped with mechanism for testing.Present invention use is driven by pure electric power and the working method of engine driven supercharging, it solves current plant water potential instrument and needs to carry mainframe box and high pressure gas holder steel cylinder, effective pressure constantly reduces in gas tank use process, will affect continuous mode after a period of time, and use is not convenient enough, not portable enough problem.
Description
Technical field
The present invention relates to agriculture technology of instrument and meter field, a kind of particularly portable plant flow of water tester.
Background technique
Plant leaf blade generates transpiration pull by transpiration.Moisture in conduit due to cohesive force effect and the company of being formed
Continuous water column.Therefore, for rising plant, the water column in conduit makes moisture consistently due to the effect of transpiration pull
It is transported up.When blade or branch are cut off, the liquid stream in xylem retracts rapidly xylem since tension releases.
Chamber method plant water potential tester is one of the important instrument for being engaged in the work of agricultural teaching and scientific research, and principle is
Branch is packed into pressure chamber's steel cylinder, notch outwardly, gradually pressurizes, until the liquid stream in conduit is just when incision appears, institute
The pressure of application has just compensated for the original negative pressure in intact plant conduit, and air pressure at this time is equal to the flow of water of the branch.It can be with
Using this instrument research plant water relation and plant and environment relationship, be suitable for plant physiology, ecology, agronomy,
The research of forestry and herbage etc., can instruct the work such as reasonable use of water and the Drought-resistant Breeding of crop and woods grass accordingly.
Currently, existing chamber method plant water potential tester include plant water potential instrument mainframe box and with gas tank case, as in
State's utility model " a kind of portable plant Type Water Potential Meter " (application number: 201820227241.3) proposes a kind of plant water potential
Analyzer, the sensing mechanism including pressure chamber's pressure regulating device, high pressure gas cylinder for press mechanism and for detecting plant water potential.It uses
The analyzer will not only carry mainframe box, and need to carry high pressure gas holder steel cylinder, and effective pressure is continuous in gas tank use process
It reduces, will affect continuous mode after a period of time, use is not convenient enough, and not portable enough, because the invention one kind is novel just
Taking formula plant water potential tester becomes design needs.
Summary of the invention
The purpose of the present invention is to provide a kind of portable plant flow of water testers, solve current plant water potential instrument needs and take
With mainframe box and high pressure gas holder steel cylinder, effective pressure is constantly reduced in gas tank use process, be will affect and was measured after a period of time
Journey, use is not convenient enough, not portable enough problem.
To achieve the goals above, the present invention is realized using following technical scheme: a kind of portable plant flow of water test
Instrument, including holding mechanism, booster body and mechanism for testing, the holding mechanism top are equipped with booster body, before booster body
End is equipped with mechanism for testing；
The booster body include sleeve, piston, screw rod, positioning knob, worm gear, worm screw, synchronizing wheel A, synchronous belt and
Attachment is controlled, the sleeve is mounted on holding mechanism top, and sleeve inner is equipped with piston, and one end of screw rod is mounted on piston
On, the other end of screw rod is equipped with positioning knob；
Worm gear shaft is mounted in holding mechanism by bearing, and worm gear shaft is hollow shaft, and be equipped with internal screw thread, internal screw thread with
Screw rod is driven in such a way that screw thread engages, and worm shaft is mounted in holding mechanism by bearing, worm and wheel engagement, worm screw
Axis one end is equipped with synchronizing wheel A, and synchronizing wheel A is engaged with synchronous belt；
The control attachment includes bracket, booster electric machine, synchronizing wheel B and control module, one end installation of the bracket
On holding mechanism, the bracket other end is mounted on sleeve, and booster electric machine is equipped on bracket, is equipped on booster electric machine axis same
Step takes turns B, and synchronizing wheel B is engaged with synchronous belt, and control module is also equipped on bracket.When work, synchronous belt respectively with synchronizing wheel A and
Synchronizing wheel B engagement, booster electric machine starting drive synchronizing wheel B rotation, and synchronizing wheel A and worm screw rotate with it, the snail engaged with worm screw
Wheel starts to rotate, and holding positioning knob makes positioning knob not rotate, since screw rod is engaged with worm gear shaft internal screw thread, silk
Bar starts that piston is pushed to move forward, and air pressure increases in sleeve.
The holding mechanism includes handle, trigger, top cover and display screen, the handle as a preferred technical solution,
Installed in front has trigger, and hollow top cover is mounted on handle upper end, and display screen is equipped on top cover, is equipped with battery in handle.
The mechanism for testing includes pressure measuring cylinder, compresses knob, auxiliary piece, clamp clip, puts as a preferred technical solution,
Air valve, pressure sensor and water droplet detection probe, the pressure measuring cylinder is installed on barrel forward end and is connected with sleeve, before pressure measuring cylinder
Holding has the sample through-hole for placing plants shoots；
Auxiliary piece, clamp clip and another auxiliary piece are installed from back to front, auxiliary piece and clamp clip are equal in sample through-hole
With the perforation passed through for plants shoots, auxiliary piece material is metal, and clamp clip material is rubber；
Knob is compressed by being threadably mounted at the front end of sample through-hole, compressing knob center has gauge hole, water droplet inspection
Probing head in gauge hole, is equipped with vent valve and pressure sensor on the barrel of pressure measuring cylinder by magnetic-adsorption.When work,
It will be penetrated in the perforation of auxiliary piece and clamp clip after plants shoots to be measured trimming, be put into togerther sample through-hole, knob rotation will be compressed
Entering in sample through-hole, auxiliary piece and clamp clip are compacted, and the clamp clip compressive deformation of rubber material clamps plants shoots to be measured,
So that sample through-hole seals, when water droplet detection probe automatically detects water droplet exudation, control module protects this moment pressure data
It deposits and exports to display screen and controlling booster electric machine and rotating backward makes piston slide into home position, open vent valve, make this survey
After trying instrument inside and outside air pressure balance, plants shoots are taken out.
The control module includes microprocessor as a preferred technical solution, microprocessor receive pressure sensor and
The signal of water droplet detection probe, the rotation status for controlling booster electric machine, microprocessor export signal to display screen, on display screen
Show that real-time pressure, the on off operating mode of water droplet detection probe and water droplet detection probe connect the information such as the pressure value of moment.
The invention also discloses the application methods of the portable plant flow of water tester, comprising the following steps:
Step 1: taking plants shoots to be measured, penetrated after trimming in the perforation of auxiliary piece and clamp clip, is put into togerther examination
In sample through-hole, the branch of 5 millimeters or so length is exposed in auxiliary piece front end；
It is screwed in sample through-hole Step 2: knob will be compressed, auxiliary piece and clamp clip are compacted, the clamp clip of rubber material
Compressive deformation clamps plants shoots to be measured, so that sample through-hole seals；
Step 3: water droplet detection probe is mounted in gauge hole by magnetic mode, water droplet detection probe is touched
Plants shoots front end to be measured；
Step 4: a hand holds handle, cocking, booster electric machine starts to rotate, and synchronizing wheel B is rotated with, same
It walks synchronizing wheel A under the drive of band to start to rotate, worm screw rotates with, and the worm gear engaged with worm screw starts to rotate；
Step 5: another hand holds positioning knob, screw rod is prevented to rotate with worm gear, screw rod starts to push piston to advancing slip
Dynamic, the air pressure in sleeve and pressure measuring cylinder starts to increase, and starts the on-off for showing real-time pressure, water droplet detection probe on display screen
The information such as state；
Step 6: plants shoots front end to be measured starts to ooze out water droplet, and water droplet detection probe is certainly when pressurizeing to a certain extent
Dynamic to detect water droplet, this moment pressure data is saved and exports to display screen and control booster electric machine and rotate backward by control module
Piston is set to slide into home position；
Step 7: opening vent valve after the completion of test, after making this tester inside and outside air pressure balance, plants shoots are taken out.
The beneficial effects of the present invention are:
1, the present invention is able to solve current plant water potential instrument and needs to carry mainframe box and high pressure gas holder steel cylinder, and gas tank used
Effective pressure constantly reduces in journey, will affect continuous mode after a period of time, and use is not convenient enough, not portable enough problem；
2, the booster body that the present invention designs, without carrying high pressure gas holder, is improved portable by the way of engine driven supercharging
Property and ease for use；
3, the flow of water tester that the present invention designs, can be by carrying replacement battery come when increasing use using being driven by pure electric power
Between.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of holding mechanism of the present invention；
Fig. 3 is the structural schematic diagram of handle and booster body of the present invention；
Fig. 4 is the structural schematic diagram of mechanism for testing of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is further explained.In the following detailed description, only pass through explanation
Mode describes certain exemplary embodiments of the invention.Undoubtedly, those skilled in the art will recognize,
In the case where without departing from the spirit and scope of the present invention, described embodiment can be repaired with a variety of different modes
Just.Therefore, attached drawing and description are regarded as illustrative in nature, and are not intended to limit the scope of the claims.
As shown in fig. 1 to fig. 4, a kind of portable plant flow of water tester, including holding mechanism 1, booster body 2 and test
Mechanism 3,1 top of holding mechanism are equipped with booster body 2, and 2 front end of booster body is equipped with mechanism for testing 3；The increasing
Press mechanism 2 includes sleeve 21, piston 22, screw rod 23, positioning knob 24, worm gear 25, worm screw 26, synchronizing wheel A27,28 and of synchronous belt
Attachment 29 is controlled, the sleeve 21 is mounted on 1 top of holding mechanism, piston 22, one end of screw rod 23 are equipped with inside sleeve 21
On the piston 22, the other end of screw rod 23 is equipped with positioning knob 24 for installation；25 axis of worm gear is mounted on holding mechanism 1 by bearing
Interior, 25 axis of worm gear is hollow shaft, and is equipped with internal screw thread, and internal screw thread is driven by way of being engaged with screw rod 23 screw thread, worm screw
26 axis are mounted in holding mechanism 1 by bearing, and worm screw 26 engages with worm gear 25, and 26 axis one end of worm screw is equipped with synchronizing wheel A27,
Synchronizing wheel A27 is engaged with synchronous belt 28；
The control attachment 29 includes bracket 291, booster electric machine 292, synchronizing wheel B293 and control module 294, described
One end of bracket 291 is mounted on holding mechanism 1, and 291 other end of bracket is mounted on sleeve 21, and increasing is equipped on bracket 291
Medium-voltage Motor 292 is equipped with synchronizing wheel B293 on 292 axis of booster electric machine, and synchronizing wheel B293 is engaged with synchronous belt 28, on bracket 291
It is also equipped with control module 294.When work, synchronous belt 28 is engaged with synchronizing wheel A27 and synchronizing wheel B293 respectively, booster electric machine
292 startings drive synchronizing wheel B293 rotation, and synchronizing wheel A27 and worm screw 26 rotate with it, and the worm gear 25 engaged with worm screw 26 starts
Rotation, holding positioning knob 24 makes positioning knob 24 not rotate, since screw rod 23 is engaged with 25 axis internal screw thread of worm gear,
Screw rod 23 starts that piston 22 is pushed to move forward, and air pressure increases in sleeve 21.
The holding mechanism 1 includes handle 11, trigger 12, top cover 13 and display screen 14,11 installed in front of handle
There is trigger 12, hollow top cover 13 is mounted on 11 upper end of handle, display screen 14 is equipped on top cover 13, is equipped with electricity in handle 11
Pond.
The mechanism for testing 3 includes pressure measuring cylinder 31, compresses knob 32, auxiliary piece 33, clamp clip 34, vent valve 35, pressure
Force snesor 36 and water droplet detection probe 37, the pressure measuring cylinder 31 are installed on 21 front end of sleeve and are connected with sleeve 21, pressure
31 front ends of cylinder have the sample through-hole 31a for placing plants shoots；Auxiliary piece 33, folder are installed from back to front in sample through-hole 31a
Tight piece 34 and another auxiliary piece 33, auxiliary piece 33 and clamp clip 34 all have the perforation passed through for plants shoots, auxiliary piece 33
Material is metal, and 34 material of clamp clip is rubber；Knob 32 is compressed by being threadably mounted at the front end of sample through-hole 31a, is compressed
32 center of knob has gauge hole 32a, and water droplet detection probe 37 passes through magnetic-adsorption in gauge hole 32a, pressure measuring cylinder 31
Barrel on vent valve 35 and pressure sensor 36 are installed.When work, auxiliary piece 33 will be penetrated after plants shoots to be measured trimming
In perforation with clamp clip 34, it is put into togerther sample through-hole 31a, knob 32 will be compressed and screwed in sample through-hole 31a, auxiliary piece 33
It is compacted with clamp clip 34,34 compressive deformation of clamp clip of rubber material clamps plants shoots to be measured, so that sample through-hole 31a
Sealing, when water droplet detection probe 37 automatically detects water droplet exudation, this moment pressure data is saved and is exported by control module 294
To display screen 14 and controlling booster electric machine 292 and rotating backward makes piston 22 slide into home position, opens vent valve 35, makes this survey
After trying instrument inside and outside air pressure balance, plants shoots are taken out.
The control module 284 includes microprocessor, and microprocessor receives pressure sensor 36 and water droplet detection probe 37
Signal, control the rotation status of booster electric machine 282, signal is exported to display screen 14, is shown on display screen 14 by microprocessor
Real-time pressure, the on off operating mode of water droplet detection probe 37 and water droplet detection probe 37 connect the information such as the pressure value of moment.
The working method of the present embodiment, comprising the following steps:
Step 1: taking plants shoots to be measured, is penetrated after trimming in the perforation of auxiliary piece 33 and clamp clip 34, put together
Enter in sample through-hole 31a, the branch of 5 millimeters or so length is exposed in 33 front end of auxiliary piece；
It is screwed in sample through-hole 31a Step 2: knob 32 will be compressed, auxiliary piece 33 and clamp clip 34 are compacted, rubber material
34 compressive deformation of clamp clip of matter clamps plants shoots to be measured, so that sample through-hole 31a is sealed；
Step 3: water droplet detection probe 37 is mounted in gauge hole 32a by magnetic mode, water droplet detection probe 37
Touch plants shoots front end to be measured；
Step 4: a hand holds handle 11, cocking 12, booster electric machine 282 starts to rotate, and synchronizing wheel B283 is therewith
Rotation, synchronizing wheel A27 starts to rotate under the drive of synchronous belt 28, and worm screw 26 rotates with, the worm gear 25 engaged with worm screw 26
Start to rotate；
Step 5: another hand holds positioning knob 24, screw rod 23 is prevented to rotate with worm gear 25, screw rod 23, which starts to push, lives
22 forward slips are filled in, the air pressure in sleeve 21 and pressure measuring cylinder 31 starts to increase, and starts to show real-time pressure, water on display screen 14
Drip the information such as the on off operating mode of detection probe 37；
Step 6: plants shoots front end to be measured starts to ooze out water droplet, water droplet detection probe 37 when pressurizeing to a certain extent
Water droplet is automatically detected, this moment pressure data is saved output to display screen 14 and controls booster electric machine 292 by control module 294
Rotating backward makes piston 22 slide into home position；
Step 7: opening vent valve 35 after the completion of test, after making this tester inside and outside air pressure balance, plants shoots are taken out.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of portable plant flow of water tester, including holding mechanism (1), booster body (2) and mechanism for testing (3), special
Sign is: holding mechanism (1) top is equipped with booster body (2), and booster body (2) front end is equipped with mechanism for testing (3),
Wherein:
The booster body (2) includes sleeve (21), piston (22), screw rod (23), positioning knob (24), worm gear (25), snail
Bar (26), synchronizing wheel A (27), synchronous belt (28) and control attachment (29), the sleeve (21) are mounted on holding mechanism (1)
Portion, sleeve (21) is internal to be equipped with piston (22), and one end of screw rod (23) is mounted on piston (22), the other end of screw rod (23)
Positioning knob (24) are installed；
Worm gear (25) axis is mounted in holding mechanism (1) by bearing, and worm gear (25) axis is hollow shaft, and is equipped with internal screw thread,
Internal screw thread is driven by way of being engaged with screw rod (23) screw thread, and worm screw (26) axis is mounted in holding mechanism (1) by bearing,
Worm screw (26) engages with worm gear (25), and worm screw (26) axis one end is equipped with synchronizing wheel A (27), synchronizing wheel A (27) and synchronous belt
(28) it engages；
The control attachment (29) includes bracket (291), booster electric machine (292), synchronizing wheel B (293) and control module
(294), one end of the bracket (291) is mounted on holding mechanism (1), and bracket (291) other end is mounted on sleeve (21),
It is equipped on bracket (291) booster electric machine (292), synchronizing wheel B (293), synchronizing wheel B is installed on booster electric machine (292) axis
(293) it is engaged with synchronous belt (28), control module (294) is also equipped on bracket (291).
2. a kind of portable plant flow of water tester as described in claim 1, it is characterised in that: the holding mechanism (1)
Including handle (11), trigger (12), top cover (13) and display screen (14), handle (11) installed in front has trigger (12), in
Empty top cover (13) is mounted on handle (11) upper end, is equipped with display screen (14) on top cover (13), is equipped with electricity in handle (11)
Pond.
3. a kind of portable plant flow of water tester as described in claim 1, it is characterised in that: the mechanism for testing (3)
Including pressure measuring cylinder (31), compress knob (32), auxiliary piece (33), clamp clip (34), vent valve (35), pressure sensor (36) and
Water droplet detection probe (37), the pressure measuring cylinder (31) are installed on sleeve (21) front end and are connected with sleeve (21), pressure measuring cylinder
(31) front end has the sample through-hole (31a) for placing plants shoots；
In sample through-hole (31a) auxiliary piece (33), clamp clip (34) and another auxiliary piece (33) are installed from back to front, assist
Piece (33) and clamp clip (34) all have the perforation passed through for plants shoots, and auxiliary piece (33) material is metal, clamp clip (34)
Material is rubber；
Knob (32) are compressed by being threadably mounted at the front end of sample through-hole (31a), compressing knob (32) center has sensor
Hole (32a), water droplet detection probe (37) in gauge hole (32a), are installed by magnetic-adsorption on the barrel of pressure measuring cylinder (31)
There are vent valve (35) and pressure sensor (36).
4. a kind of portable plant flow of water tester as described in claim 1, it is characterised in that: the control module (284)
Including microprocessor, microprocessor receives the signal of pressure sensor (36) and water droplet detection probe (37), control booster electric machine
(282) rotation status, microprocessor export signal to display screen (14), and display screen shows real-time pressure, water droplet on (14)
The on off operating mode and water droplet detection probe (37) of detection probe (37) connect the information such as the pressure value of moment.
5. a kind of application method of portable plant flow of water tester as described in claim 1, it is characterised in that: including following
Step,
Step 1: taking plants shoots to be measured, is penetrated after trimming in the perforation of auxiliary piece (33) and clamp clip (34), put together
Enter in sample through-hole (31a), the branch of 5 millimeters or so length is exposed in auxiliary piece (33) front end；
It is screwed in sample through-hole (31a) Step 2: knob (32) will be compressed, auxiliary piece (33) and clamp clip (34) are compacted, rubber
Clamp clip (34) compressive deformation of glue material matter clamps plants shoots to be measured, so that sample through-hole (31a) seals；
Step 3: water droplet detection probe (37) is mounted in gauge hole (32a) by magnetic mode, water droplet detection probe
(37) plants shoots front end to be measured is touched；
Step 4: a hand is held handle (11), cocking (12), booster electric machine (282) starts to rotate, synchronizing wheel B (283)
It rotates with, synchronizing wheel A (27) starts to rotate under the drive of synchronous belt (28), and worm screw (26) rotates with, with worm screw (26)
The worm gear (25) of engagement starts to rotate；
Step 5: another hand is held positioning knob (24), screw rod (23) is prevented to rotate with worm gear (25), screw rod (23) starts to push away
Air pressure in piston (22) forward slip, sleeve (21) and pressure measuring cylinder (31) starts to increase, and display screen starts to show on (14)
Show the information such as on off operating mode of real-time pressure, water droplet detection probe (37)；
Step 6: plants shoots front end to be measured starts to ooze out water droplet, and water droplet detection probe (37) is certainly when pressurizeing to a certain extent
Dynamic to detect water droplet, this moment pressure data is saved output to display screen (14) and controls booster electric machine by control module (294)
(292) rotating backward makes piston (22) slide into home position；
Step 7: opening vent valve (35) after the completion of test, after making this tester inside and outside air pressure balance, plants shoots are taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535570.5A CN109752488A (en) | 2018-12-14 | 2018-12-14 | A kind of portable plant flow of water tester and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535570.5A CN109752488A (en) | 2018-12-14 | 2018-12-14 | A kind of portable plant flow of water tester and its application method |
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| CN109752488A true CN109752488A (en) | 2019-05-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111351825A (en) * | 2020-04-01 | 2020-06-30 | 福建省东海检测技术有限公司 | Sewage dissolved oxygen apparatus based on-line control |
| CN112931167A (en) * | 2021-03-22 | 2021-06-11 | 中国农业大学 | Plant irrigation decision system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111351825A (en) * | 2020-04-01 | 2020-06-30 | 福建省东海检测技术有限公司 | Sewage dissolved oxygen apparatus based on-line control |
| CN111351825B (en) * | 2020-04-01 | 2022-07-01 | 福建省东海检测技术有限公司 | Sewage dissolved oxygen apparatus based on-line control |
| CN112931167A (en) * | 2021-03-22 | 2021-06-11 | 中国农业大学 | Plant irrigation decision system and method |
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