CN104833702B - A kind of sensor for grain oil water content detector - Google Patents
A kind of sensor for grain oil water content detector Download PDFInfo
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- CN104833702B CN104833702B CN201510244234.5A CN201510244234A CN104833702B CN 104833702 B CN104833702 B CN 104833702B CN 201510244234 A CN201510244234 A CN 201510244234A CN 104833702 B CN104833702 B CN 104833702B
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Abstract
The invention discloses a kind of sensor for grain oil water content detector, including electrode and inner cylinder, electrode includes electrode column and several electrode pads, electrode pad is uniformly arranged on the surface of electrode column, axial direction of the electrode pad along electrode column is set, the radius of electrode column is the 1/6 1/4 of inner cylinder inwall radius, the distance between the outer rim of electrode pad and inner cylinder inwall are the 1/10 1/8 of inner cylinder inwall radius, the quantity of electrode pad is three, sensor also includes electrode chassis, electrode column is arranged on electrode chassis, the axis of electrode column overlaps with the axis of inner cylinder, this sensor has advantages below：Measurement accuracy is high, and compared with the existing sensor using cylindrical electrode, measurement accuracy improves 17% 35%；Stability is good, and stability improves 19% 28%；Easy to use, quick, operating efficiency is high.
Description
Technical field
The present invention relates to a kind of measuring instrument, specifically, is related to a kind of sensor for grain oil water content detector, category
In technical field of analytical instruments.
Background technology
Purchase, transport, storage, processing, trade of the grain oilseed moisture detection to grain, which all have, to be of great significance.
Moisture is too high to waste transport power and capacity, promotes grain oil plant vital movement vigorous, easily causes grain oil plant generate heat, go mouldy, be raw
Worm and other Biochemical changes.In China, due to the imperfection of water content detection technology, there is tens billion of jin of grain oil plant every year because of water
Divide too high levels to be gone rotten in transport and storage rotten, cause huge loss.And grain oilseed moisture is too low, reduce
Grain oil plant weight, influences grain index.Therefore, moisture is always an important indicator of grain oil plant.
Mostly traditional grain oilseed moisture detection is that the moisture in grain oil plant is directly removed by dry or chemical method,
Detect the absolute water content of sample.Although the accuracy of detection comparison of these methods is high, time-consuming, laboratory inspection is only applicable to
Survey, quick, on-line checking can not be realized, be not suitable for practical application.Therefore, in recent years, people's increasingly valuing researches grain oil
Expect the quick detection of moisture, new detection device continues to bring out.
A kind of capacitance method grain oilseed moisture described in number of patent application 201310320398.2,201320452937.3
Analyzer sensor, the quick detection of grain oilseed moisture can be achieved, it is easy to use, it is effective to change traditional grain oil plant water
Divide measure backward situation, but the accuracy and stability of the measurement of such a sensor for grain oil water content detector are not ten
Sub-argument is thought.
The content of the invention
The technical problem to be solved in the present invention is to be directed to disadvantages described above, there is provided a kind of grain oil water content detector sensing
Device, using the sensor, realize following purpose：
1st, measurement accuracy is high, and compared with the existing sensor using cylindrical electrode, measurement accuracy improves 17%-35%；
2nd, stability is good, and stability improves 19%-28%；
3rd, it is easy to use, quick.
To solve problem above, the technical solution adopted in the present invention is：A kind of grain oil water content detector sensing
Device, including electrode and inner cylinder, it is characterised in that：The electrode includes electrode column and several electrode pads；The electrode pad
The surface of electrode column is uniformly arranged on, axial direction of the electrode pad along electrode column is set.
A kind of scheme of optimization, the radius of the electrode column are the 1/6-1/4 of inner cylinder inwall radius.
A kind of scheme of optimization, the distance between the outer rim of the electrode pad and inner cylinder inwall are inner cylinder inwall radius
1/10-1/8。
A kind of scheme of optimization, the quantity of the electrode pad is three.
A kind of scheme of optimization, the sensor also include electrode chassis；The electrode column is arranged on electrode chassis, electricity
The axis of pole overlaps with the axis of inner cylinder.
A kind of scheme of optimization, the sensor also include supports insulative plate；The supports insulative plate is arranged in inner cylinder,
To support electrode chassis.
A kind of scheme of optimization, the sensor also include outer barrel；The bottom of the outer barrel is removably connected with insulation material
Base made of material, the centre position of base are fixed with retractable electrode, and retractable electrode stretches out the top of base；The base
On be fixed with travel switch, the depression bar of travel switch stretches out the upper surface of base, and the bottom of base is fixed with sheet metal, sheet metal
It is connected with outer barrel；Spring clip is provided with below the base, spring clip is arranged in the interior annular groove of outer barrel bottom；The stroke
The normal open switch of switch is connected between measuring circuit and triggers circuit, and retractable electrode, sheet metal are respectively by wire with surveying
Measure circuit connection.
A kind of scheme of optimization, the inner cylinder are arranged in outer barrel and can slided along the inwall of outer barrel, inner cylinder and outer barrel electricity
Connection；The bottom of the supports insulative plate is provided with spring clip, and spring clip is arranged in the interior annular groove of inner cylinder bottom, base and branch
Spring is provided between support insulation board.
A kind of scheme of optimization, the upper end of the outer barrel are provided with inner convex platform, and the internal diameter of inner cylinder is less than the internal diameter of inner convex platform, interior
The external diameter of cylinder is more than the internal diameter of inner convex platform, and the upper end of inner cylinder is provided with extending, and extending can stretch out outer barrel along inner convex platform.
A kind of scheme of optimization, the sensor also include upper lid, are provided with pressed end in upper lid, the external diameter of pressed end is more than
The internal diameter of inner convex platform.
The present invention uses above technical scheme, compared with existing technical scheme, have advantages below：Measurement accuracy is high,
Compared with the existing sensor using cylindrical electrode, measurement accuracy improves 17%-35%；Stability is good, and stability improves 19%-
28%。
In use, grain to be measured or oil plant are positioned in inner cylinder, upper lid is sleeved on outer barrel, and the pressed end of upper lid is with prolonging
Long cylinder coordinates, and when the upper surface of extending and the concordant upper surface of outer barrel, inner cylinder is extruded into the normal open switch of travel switch
Closure, measuring circuit obtains starting signal start-up operation, while bolt contacts with retractable electrode, and measuring circuit starts measurement and treated
The numerical value of contained humidity in grain or oil plant is surveyed, it is quick and easy.Also lid can not be used during use, is directly pressed with hand, more just
Just.
When changing grain oil plant to be measured, sensor perturbations are directly poured out into grain or oil plant, it is upper due to outer barrel
End is provided with inner convex platform, so inner cylinder will not skid off out of outer barrel, very easy to use, operating efficiency is high.
The invention will be further described with reference to the accompanying drawings and examples.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of sensor for grain oil water content detector sensor in the embodiment of the present invention；
Accompanying drawing 2 is A-A cross section structure diagrams in accompanying drawing 1；
Accompanying drawing 3 is close-up schematic view in accompanying drawing 1；
Accompanying drawing 4 is the structural representation of upper lid in the embodiment of the present invention；
In figure,
1- outer barrels, 2- inner cylinders, 3- extendings, 41- electrode pads, 42- electrode columns, 43- electrodes chassis, 5- supports insulatives
Plate, 6- spring clips, 7- springs, 8- bases, 9- retractable electrodes, 10- travel switches, 11- sheet metals, 12- spring clips, 13- spiral shells
Bolt, 14- inner convex platforms, 15- pressed ends, cover on 16-.
Embodiment
Embodiment, as shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of sensor for grain oil water content detector, including metal
Manufactured outer barrel 1, the bottom of outer barrel 1 are removably connected with base 8 made of insulating materials, and the centre position of base 8 is fixed with
Retractable electrode 9, retractable electrode 9 stretch out the top of base 8, travel switch 10, the pressure of travel switch 10 are fixed with base 8
Bar stretches out the upper surface of base 8, and the bottom of base 8 is fixed with sheet metal 11, and sheet metal 11 is connected with outer barrel 1, below base 8
Provided with spring clip 12, spring clip 12 is arranged in the interior annular groove of the bottom of outer barrel 1, and the normal open switch of travel switch 10 is connected to survey
Measure between circuit and triggers circuit, retractable electrode 9, sheet metal 11 are connected by wire with measuring circuit respectively.
Inner cylinder 2 made of metal is provided with outer barrel 1, the outer wall of inner cylinder 2 can slide along the inwall of outer barrel 1, inner cylinder 2 and outer barrel
1 electrical connection, the bottom of inner cylinder 2 are fixed with electrode and supports insulative plate 5, and the bottom of supports insulative plate 5 is provided with spring clip 6, spring
Folder 6 is arranged in the interior annular groove of the bottom of inner cylinder 2, and electrode is arranged on supporting plate insulation board 5 and insulated between inner cylinder 2.
Electrode includes electrode column 42, electrode pad 41 and electrode chassis 43, and the inwall radius of inner cylinder 2 is represented with R, electrode column
42 radius represented with r, and the distance between the outer rim of electrode pad 41 and the inwall of inner cylinder 2 are represented with d, d=（1/10-1/8）R、r=
（1/6-1/4）R, d in the present embodiment=（1/9）R、r=（1/5）R.Electrode column 42, electrode pad 41 and electrode chassis 43 are using gold
Category is made, and electrode chassis 43 is arranged on the centre position of supports insulative plate 5, and electrode column 42 is arranged on above electrode chassis 43,
The axis of electrode column 42 overlaps with the axis of inner cylinder 2, and the surface of electrode column 42 is axially arranged what several were evenly distributed
Electrode pad 41, the quantity of electrode pad 41 is 3 in the present embodiment.
Bolt 13 is connected so that electrode is fixed on into supports insulative through supports insulative plate 5 and electrode chassis 43 with electrode column 42
On plate 5, the position correspondence of bolt 13 and retractable electrode 9 is provided with spring 7 between base 8 and supports insulative plate 5, outer barrel 1 it is upper
End is provided with inner convex platform 14, and the internal diameter of inner cylinder 2 is less than the internal diameter of inner convex platform 14, and the external diameter of inner cylinder 2 is more than the internal diameter of inner convex platform 14, interior
The upper end of cylinder 2 is provided with extending 3, and extending 3 can stretch out outer barrel 1 along inner convex platform 14, and grain oilseed moisture measuring instrument also includes upper
Lid 16, upper lid 16 is interior to be provided with pressed end 15, and the external diameter of pressed end 15 is more than the internal diameter of inner convex platform 14.
In test, inventor is had found in the case of using identical measuring circuit, triggers circuit, the quantity of electrode pad
It is proportional relationship not to be with measurement accuracy, stability；Meanwhile the distance between the outer rim of electrode pad and inner cylinder inwall and survey
Accuracy of measurement, stability are nor proportional relationship.
Through experiment, when electrode pad 41 quantity be 3, d=（1/10-1/8）R、r=（1/6-1/4）During R, adopted with existing
Compared with the sensor of cylindrical electrode, measurement accuracy improve 17%-35%, stability improve 19%-28%, when d=（1/9）R、r=
（1/5）During R, measurement accuracy, stability highest.
When electrode pad 41 quantity be 4, d=（1/10-1/8）R、r= r=（1/6-1/4）During R, with existing using circle
The sensor of cylindrical electrode is compared, and measurement accuracy improves 15%-29%, and stability improves 16%-22%.
When electrode pad 41 quantity be 2, d=（1/10-1/8）R、r= r=（1/6-1/4）During R, with existing using circle
The sensor of cylindrical electrode is compared, and measurement accuracy improves 10%-21%, and stability improves 11%-16%.
When electrode pad 41 it is more when, measurement accuracy and stability decline bigger.
Measuring circuit, triggers circuit can use the common circuit of this area, so the present embodiment no longer describes in detail.
Under normal circumstances, in the presence of spring 7, extending 3 is stretched out outside outer barrel 1 along inner convex platform 14, in use, will be to be measured
Grain or oil plant are positioned in inner cylinder 2, and upper lid 16 is sleeved on outer barrel 1, and pressed end 15 and the extending 3 of upper lid 16 coordinate, when
When the upper surface of extending 3 is concordant with the upper surface of outer barrel 1, inner cylinder 2 is extruded into the normal open switch closure of travel switch 10, surveys
Amount circuit obtains starting signal start-up operation, while bolt 13 contacts with retractable electrode 9, and measuring circuit starts to measure grain to be measured
The numerical value of contained humidity, quick and easy in food or oil plant.Also lid 16 can not be used during use, is directly pressed with hand, more just
Just.When changing grain oil plant to be measured, sensor perturbations are directly poured out into grain or oil plant, due to the upper end of outer barrel 1
Provided with inner convex platform 14, so inner cylinder 2 will not skid off out of outer barrel 1, very easy to use, operating efficiency is high.
The sensor can be used for the moisture measurement of chemical fertilizer granule, rubber grain, powder.
One skilled in the art would recognize that above-mentioned embodiment is exemplary, it is in order that ability
Field technique personnel can be better understood from present invention, should not be understood as limiting the scope of the invention, as long as
According to technical solution of the present invention improvements introduced, protection scope of the present invention is each fallen within.
Claims (1)
- A kind of 1. sensor for grain oil water content detector, it is characterised in that：Including outer barrel made of metal（1）, outer barrel（1） Bottom be removably connected with base made of insulating materials（8）, base（8）Centre position be fixed with retractable electrode（9）, Retractable electrode（9）Stretch out base（8）Top, base（8）On be fixed with travel switch（10）, travel switch（10）Depression bar Stretch out base（8）Upper surface, base（8）Bottom be fixed with sheet metal（11）, sheet metal（11）With outer barrel（1）Connection, bottom Seat（8）Below be provided with spring clip（12）, spring clip（12）It is arranged on outer barrel（1）In the interior annular groove of bottom, travel switch （10）Normal open switch be connected between measuring circuit and triggers circuit, retractable electrode（9）, sheet metal（11）Respectively by leading Line is connected with measuring circuit；Outer barrel（1）It is interior to be provided with inner cylinder made of metal（2）, inner cylinder（2）Outer wall can be along outer barrel（1）Inwall slide, inner cylinder（2） With outer barrel（1）Electrical connection, inner cylinder（2）Bottom be fixed with electrode and supports insulative plate（5）, supports insulative plate（5）Bottom set There is spring clip（6）, spring clip（6）It is arranged on inner cylinder（2）In the interior annular groove of bottom, electrode is arranged on supporting plate insulation board（5） Upper and and inner cylinder（2）Between insulate；Electrode includes electrode column（42）, electrode pad（41）With electrode chassis（43）, inner cylinder（2）Inwall radius represented with R, electricity Pole（42）Radius represented with r, electrode pad（41）Outer rim and inner cylinder（2）The distance between inwall represents with d, electrode column （42）, electrode pad（41）With electrode chassis（43）It is made of metal, electrode chassis（43）It is arranged on supports insulative plate（5）'s Centre position, electrode column（42）It is arranged on electrode chassis（43）Above, electrode column（42）Axis and inner cylinder（2）Axis Line overlaps, electrode column（42）Surface axially arranged have the electrode pad that several are evenly distributed（41）, electrode pad（41）'s Quantity is 3；Bolt（13）Through supports insulative plate（5）With electrode chassis（43）With electrode column（42）Connect so that electrode is fixed on into support Insulation board（5）On, bolt（13）With retractable electrode（9）Position correspondence, base（8）With supports insulative plate（5）Between be provided with Spring（7）, outer barrel（1）Upper end be provided with inner convex platform（14）, inner cylinder（2）Internal diameter be less than inner convex platform（14）Internal diameter, inner cylinder（2） External diameter be more than inner convex platform（14）Internal diameter, inner cylinder（2）Upper end be provided with extending（3）, extending（3）Can be along inner convex platform（14） Stretch out outer barrel（1）, grain oilseed moisture measuring instrument also includes upper lid（16）, upper lid（16）It is interior to be provided with pressed end（15）, pressed end （15）External diameter be more than inner convex platform（14）Internal diameter；d=（1/9）R、r=（1/5）R, measurement accuracy improve 35%, and stability improves 28%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510244234.5A CN104833702B (en) | 2015-05-14 | 2015-05-14 | A kind of sensor for grain oil water content detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244234.5A CN104833702B (en) | 2015-05-14 | 2015-05-14 | A kind of sensor for grain oil water content detector |
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| CN104833702A CN104833702A (en) | 2015-08-12 |
| CN104833702B true CN104833702B (en) | 2018-01-05 |
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| CN201510244234.5A Active CN104833702B (en) | 2015-05-14 | 2015-05-14 | A kind of sensor for grain oil water content detector |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107167498A (en) * | 2017-05-31 | 2017-09-15 | 合肥艾瑞德电气有限公司 | A kind of portable moisture instrument with open-close type cereal interface |
| CN107102037A (en) * | 2017-05-31 | 2017-08-29 | 合肥艾瑞德电气有限公司 | A kind of portable condenser type moisture detector |
Citations (7)
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|---|---|---|---|---|
| CN2419596Y (en) * | 2000-04-10 | 2001-02-14 | 马德民 | Intellectural water content testing meter |
| CN2470823Y (en) * | 2001-04-13 | 2002-01-09 | 单元道 | Plug-in type sensor of capacitor type water-content detecting instrument |
| CN2857000Y (en) * | 2005-06-27 | 2007-01-10 | 窦祥增 | Particle moisture testing senser for oilseeds |
| CN101334373A (en) * | 2008-08-07 | 2008-12-31 | 窦祥增 | Capacitance type foodstuffs moisture tester |
| CN201255730Y (en) * | 2008-04-07 | 2009-06-10 | 刘振山 | Moisture measurement sensor for materials |
| CN103399041A (en) * | 2013-07-29 | 2013-11-20 | 窦英明 | Sensor for grain oil water content detector |
| CN204666548U (en) * | 2015-05-14 | 2015-09-23 | 窦英明 | A kind of sensor for grain oil water content detector |
-
2015
- 2015-05-14 CN CN201510244234.5A patent/CN104833702B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2419596Y (en) * | 2000-04-10 | 2001-02-14 | 马德民 | Intellectural water content testing meter |
| CN2470823Y (en) * | 2001-04-13 | 2002-01-09 | 单元道 | Plug-in type sensor of capacitor type water-content detecting instrument |
| CN2857000Y (en) * | 2005-06-27 | 2007-01-10 | 窦祥增 | Particle moisture testing senser for oilseeds |
| CN201255730Y (en) * | 2008-04-07 | 2009-06-10 | 刘振山 | Moisture measurement sensor for materials |
| CN101334373A (en) * | 2008-08-07 | 2008-12-31 | 窦祥增 | Capacitance type foodstuffs moisture tester |
| CN103399041A (en) * | 2013-07-29 | 2013-11-20 | 窦英明 | Sensor for grain oil water content detector |
| CN204666548U (en) * | 2015-05-14 | 2015-09-23 | 窦英明 | A kind of sensor for grain oil water content detector |
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Effective date of registration: 20201123 Address after: 277400 east side (Industrial Park) of north section of Guangjin Road, Taierzhuang Economic Development Zone, Zaozhuang City, Shandong Province Patentee after: Zaozhuang TIANYAO starch Technology Co.,Ltd. Address before: Zhao De road 262500 in Shandong province Weifang City, Qingzhou City, No. 4199 Qingzhou Tianlong Oil Water Research Institute Patentee before: Dou Yingming |
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Effective date of registration: 20230803 Address after: 277400 No. 275, Lanqi Road, Tai'erzhuang District, Zaozhuang, Shandong Province Patentee after: Shandong Grand Canal Investment and Operation Co.,Ltd. Address before: 277400 east side of north section of Guanglu Road, Taierzhuang Economic Development Zone, Zaozhuang City, Shandong Province (Industrial Park) Patentee before: Zaozhuang TIANYAO starch Technology Co.,Ltd. |