CN104833702A - Sensor for grain and oil moisture meter - Google Patents
Sensor for grain and oil moisture meter Download PDFInfo
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- CN104833702A CN104833702A CN201510244234.5A CN201510244234A CN104833702A CN 104833702 A CN104833702 A CN 104833702A CN 201510244234 A CN201510244234 A CN 201510244234A CN 104833702 A CN104833702 A CN 104833702A
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Abstract
The invention discloses a sensor for a grain and oil moisture meter. The sensor comprises an electrode and an inner cylinder, wherein the electrode comprises an electrode column and multiple electrode plates; the electrode plates are uniformly arranged on the surface of the electrode column and are arranged along the axial direction of the electrode column; the radius of the electrode column is 1/6-1/4 of the radius of the inner wall of the inner cylinder; the distance between the outer edge of each electrode plate and the inner wall of the inner cylinder is 1/10-1/8 of the radius of the inner wall of the inner cylinder; totally the three electrode plates are arranged; the sensor also comprises an electrode chassis; the electrode column is arranged on the electrode chassis; and the central axis of the electrode column is coincided with the central axis of the inner cylinder. The sensor has the advantages that the measurement accuracy is high, and compared with a conventional sensor adopting a cylindrical electrode, the sensor disclosed by the invention has the advantage that the measurement accuracy is improved by 17-35 percent; the stability is high and is improved by 19-28 percent; and the sensor is convenient and rapid to use and high in working efficiency.
Description
Technical field
The present invention relates to a kind of surveying instrument, specifically, relate to a kind of sensor for grain oil water content detector, belong to technical field of analytical instruments.
Background technology
Grain oilseed moisture detect to the purchase of grain, transport, storage, processing, trade all tool be of great significance.The too high waste transport power of moisture and capacity, impel grain oil plant vital movement vigorous, easily cause grain oil plant to generate heat, go mouldy, infested and other Biochemical changes.In China, due to the imperfection of water content detection technology, there is the grain oil plant of tens billion of jin to go rotten in transport and storage because moisture is too high every year rotten, cause huge loss.And grain oilseed moisture is too low, decreases grain oil plant weight, affect grain index.Therefore, moisture is an important indicator of grain oil plant always.
Traditional grain oilseed moisture detects the moisture being mostly directly to be removed by dry or chemical method in grain oil plant, detects the absolute water content of sample.Although the accuracy of detection of these methods is higher, time-consuming, be only applicable to test in laboratory, quick, on-line checkingi cannot be realized, be not suitable for practical application.Therefore, in recent years, the quick detection of people's more and more valuing researches grain oilseed moisture, new checkout equipment continues to bring out.
A kind of capacitance method sensor for grain oil water content detector described in number of patent application 201310320398.2,201320452937.3, the quick detection of grain oilseed moisture can be realized, easy to use, effective change traditional grain oilseed moisture measures the situation fallen behind, but the degree of accuracy of this kind of sensor for grain oil water content detector measurement and stability are not very good.
Summary of the invention
The technical problem to be solved in the present invention is for above defect, provides a kind of sensor for grain oil water content detector, adopts this sensor, achieves following object:
1, measuring accuracy is high, and compared with the sensor of existing employing cylindrical electrode, measuring accuracy improves 17%-35%;
2, good stability, stability improves 19%-28%;
3, easy to use, quick.
For overcoming the above problems, the technical solution adopted in the present invention is: a kind of sensor for grain oil water content detector, comprises electrode and inner core, it is characterized in that: described electrode comprises electrode column and several electrode pads; Described electrode pad is evenly arranged on the surface of electrode column, and electrode pad is arranged along the axial direction of electrode column.
A scheme for optimization, the radius of described electrode column is the 1/6-1/4 of inner core inwall radius.
A scheme for optimization, the distance between the outer rim of described electrode pad and inner core inwall is the 1/10-1/8 of inner core inwall radius.
A scheme for optimization, the quantity of described electrode pad is three.
A scheme for optimization, described sensor also comprises electrode chassis; Described electrode column is arranged on electrode chassis, and the axis of electrode column overlaps with the axis of inner core.
A scheme for optimization, described sensor also comprises supports insulative plate; Described supports insulative plate is arranged in inner core, in order to support electrode chassis.
A scheme for optimization, described sensor also comprises urceolus; The bottom of described urceolus is removably connected with the base that insulating material is made, and the centre position of base is fixed with retractable electrode, the top of retractable electrode protuberate basic unit; Described base is fixed with travel switch, the upper surface of the depression bar protuberate basic unit of travel switch, the bottom of base is fixed with sheet metal, and sheet metal is connected with urceolus; Be provided with spring clamp below described base, spring clamp is arranged in the interior ring groove bottom urceolus; The normal open switch of described travel switch is connected between metering circuit and trigger circuit, and retractable electrode, sheet metal are connected with metering circuit respectively by wire.
A scheme for optimization, described inner core is arranged in urceolus and also can slides along the inwall of urceolus, and inner core is electrically connected with urceolus; The bottom of described supports insulative plate is provided with spring clamp, and spring clamp is arranged in the interior ring groove bottom inner core, is provided with spring between base and supports insulative plate.
A scheme for optimization, the upper end of described urceolus is provided with inner convex platform, and the internal diameter of inner core is less than the internal diameter of inner convex platform, and the external diameter of inner core is greater than the internal diameter of inner convex platform, and the upper end of inner core is provided with extending, and extending can stretch out urceolus along inner convex platform.
A scheme for optimization, described sensor also comprises upper cover, is provided with pressed end in upper cover, and the external diameter of pressed end is greater than the internal diameter of inner convex platform.
The present invention adopts above technical scheme, compared with existing technical scheme, has the following advantages: measuring accuracy is high, and compared with the sensor of existing employing cylindrical electrode, measuring accuracy improves 17%-35%; Good stability, stability improves 19%-28%.
During use, grain to be measured or oil plant are positioned in inner core, upper cover is sleeved on urceolus, the pressed end of upper cover coordinates with extending, when the upper surface of extending and the upper surface of urceolus concordant time, inner core be extruded into travel switch normal open switch close, metering circuit obtains starting signal and starts working, bolt contacts with retractable electrode simultaneously, and metering circuit starts the numerical value measuring contained humidity in grain to be measured or oil plant, quick and easy.Also without upper cover, directly can press with hand during use, convenient.
When changing grain oil plant to be measured, directly sensor perturbations is poured out grain or oil plant, because the upper end of urceolus is provided with inner convex platform, so inner core can not skid off in urceolus, very easy to use, work efficiency is high.
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of grain oil water content detector sensor in the embodiment of the present invention;
Accompanying drawing 2 is A-A sectional structure schematic diagram 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 cover in the embodiment of the present invention;
In figure,
1-urceolus, 2-inner core, 3-extending, 41-electrode pad, 42-electrode column, 43-electrode chassis, 5-supports insulative plate, 6-spring clamp, 7-spring, 8-base, 9-retractable electrode, 10-travel switch, 11-sheet metal, 12-spring clamp, 13-bolt, 14-inner convex platform, 15-pressed end, 16-upper cover.
Embodiment
Embodiment, as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, a kind of sensor for grain oil water content detector, comprise metal urceolus 1, the bottom of urceolus 1 is removably connected with the base 8 that insulating material is made, the centre position of base 8 is fixed with retractable electrode 9, the top of retractable electrode 9 protuberate basic unit 8, base 8 is fixed with travel switch 10, the upper surface of the depression bar protuberate basic unit 8 of travel switch 10, the bottom of base 8 is fixed with sheet metal 11, sheet metal 11 is connected with urceolus 1, spring clamp 12 is provided with below base 8, spring clamp 12 is arranged in the interior ring groove bottom urceolus 1, the normal open switch of travel switch 10 is connected between metering circuit and trigger circuit, retractable electrode 9, sheet metal 11 is connected with metering circuit respectively by wire.
Metal inner core 2 is provided with in urceolus 1, the outer wall of inner core 2 can slide along the inwall of urceolus 1, inner core 2 is electrically connected with urceolus 1, the bottom of inner core 2 is fixed with electrode and supports insulative plate 5, the bottom of supports insulative plate 5 is provided with spring clamp 6, spring clamp 6 is arranged in the interior ring groove bottom inner core 2, and electrode is arranged on back up pad insulcrete 5 and also and between inner core 2 insulate.
Electrode comprises electrode column 42, electrode pad 41 and electrode chassis 43, the inwall radius R of inner core 2 represents, the radius of electrode column 42 represents with r, distance between the outer rim of electrode pad 41 and inner core 2 inwall represents with d, d=(1/10-1/8) R, r=(1/6-1/4) R, d=(1/9 in the present embodiment) R, r=(1/5) R.Electrode column 42, electrode pad 41 and electrode chassis 43 adopt metal to make, electrode chassis 43 is arranged on the centre position of supports insulative plate 5, electrode column 42 is arranged on above electrode chassis 43, the axis of electrode column 42 overlaps with the axis of inner core 2, the surface of electrode column 42 is axially provided with several electrode pads 41 be evenly distributed, and in the present embodiment, the quantity of electrode pad 41 is 3.
Bolt 13 is connected electrode to be fixed on supports insulative plate 5 on electrode chassis 43 with electrode column 42 through supports insulative plate 5, bolt 13 is corresponding with the position of retractable electrode 9, spring 7 is provided with between base 8 and supports insulative plate 5, the upper end of urceolus 1 is provided with inner convex platform 14, the internal diameter of inner core 2 is less than the internal diameter of inner convex platform 14, the external diameter of inner core 2 is greater than the internal diameter of inner convex platform 14, the upper end of inner core 2 is provided with extending 3, extending 3 can stretch out urceolus 1 along inner convex platform 14, grain oilseed moisture measuring instrument also comprises upper cover 16, pressed end 15 is provided with in upper cover 16, the external diameter of pressed end 15 is greater than the internal diameter of inner convex platform 14.
In test, inventor finds that the quantity of electrode pad and measuring accuracy, stability are not proportional relationships when adopting identical metering circuit, trigger circuit; Meanwhile, distance and measuring accuracy between the outer rim of electrode pad and inner core inwall, stability neither proportional relationship.
Through test, when the quantity of electrode pad 41 is 3, d=(1/10-1/8) R, r=(1/6-1/4) R time, compared with the sensor of existing employing cylindrical electrode, measuring accuracy improves 17%-35%, stability improve 19%-28%, as d=(1/9) R, r=(1/5) R time, measuring accuracy, stability are the highest.
When the quantity of electrode pad 41 is 4, d=(1/10-1/8) R, r=r=(1/6-1/4) R time, compared with the sensor of existing employing cylindrical electrode, measuring accuracy improves 15%-29%, and stability improves 16%-22%.
When the quantity of electrode pad 41 is 2, d=(1/10-1/8) R, r=r=(1/6-1/4) R time, compared with the sensor of existing employing cylindrical electrode, measuring accuracy improves 10%-21%, and stability improves 11%-16%.
When electrode pad 41 more, measuring accuracy and stability decline larger.
Metering circuit, trigger circuit can adopt the common circuit of this area, so the present embodiment no longer describes in detail.
Under normal circumstances, under the effect of spring 7, extending 3 stretches out outside urceolus 1 along inner convex platform 14, during use, grain to be measured or oil plant are positioned in inner core 2, upper cover 16 is sleeved on urceolus 1, the pressed end 15 of upper cover 16 coordinates with extending 3, when the upper surface of extending 3 is concordant with the upper surface of urceolus 1, the normal open switch that inner core 2 is extruded into travel switch 10 closes, and metering circuit obtains starting signal and starts working, and bolt 13 contacts with retractable electrode 9 simultaneously, metering circuit starts the numerical value measuring contained humidity in grain to be measured or oil plant, quick and easy.Also without upper cover 16, directly can press with hand during use, convenient.When changing grain oil plant to be measured, directly sensor perturbations is poured out grain or oil plant, the upper end due to urceolus 1 is provided with inner convex platform 14, so inner core 2 can not skid off in urceolus 1, very easy to use, work efficiency is high.
This sensor also may be used for the moisture measurement of chemical fertilizer granule, rubber grain, powder.
Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; to enable those skilled in the art better understand content of the present invention; should not be understood as limiting the scope of the invention; as long as according to the improvement that technical solution of the present invention is done, all fall into protection scope of the present invention.
Claims (10)
1. a sensor for grain oil water content detector, comprises electrode and inner core (2), it is characterized in that: described electrode comprises electrode column (42) and several electrode pads (41);
Described electrode pad (41) is evenly arranged on the surface of electrode column (42), and electrode pad (41) is arranged along the axial direction of electrode column (42).
2. sensor as claimed in claim 1, is characterized in that: the radius of described electrode column (42) is the 1/6-1/4 of inner core (2) inwall radius.
3. sensor as claimed in claim 1, is characterized in that: the distance between the outer rim of described electrode pad (41) and inner core (2) inwall is the 1/10-1/8 of inner core (2) inwall radius.
4., as the sensor of claim 1-3 as described in one of them, it is characterized in that: the quantity of described electrode pad (41) is three.
5. sensor as claimed in claim 4, is characterized in that: described sensor also comprises electrode chassis (43);
Described electrode column (42) is arranged on electrode chassis (43), and the axis of electrode column (42) overlaps with the axis of inner core (2).
6. sensor as claimed in claim 5, is characterized in that: described sensor also comprises supports insulative plate (5);
Described supports insulative plate (5) is arranged in inner core (2), in order to support electrode chassis (43).
7. sensor as claimed in claim 6, is characterized in that: described sensor also comprises urceolus (1);
The bottom of described urceolus (1) is removably connected with the base (8) that insulating material is made, and the centre position of base (8) is fixed with retractable electrode (9), the top of retractable electrode (9) protuberate basic unit (8);
Described base (8) is fixed with travel switch (10), the upper surface of the depression bar protuberate basic unit (8) of travel switch (10), the bottom of base (8) is fixed with sheet metal (11), and sheet metal (11) is connected with urceolus (1);
Be provided with spring clamp (12) below described base (8), spring clamp (12) is arranged in the interior ring groove of urceolus (1) bottom;
The normal open switch of described travel switch (10) is connected between metering circuit and trigger circuit, and retractable electrode (9), sheet metal (11) are connected with metering circuit respectively by wire.
8. sensor as claimed in claim 7, is characterized in that: described inner core (2) is arranged in urceolus (1) and also can slides along the inwall of urceolus (1), and inner core (2) is electrically connected with urceolus (1);
The bottom of described supports insulative plate (5) is provided with spring clamp (6), and spring clamp (6) is arranged in the interior ring groove of inner core (2) bottom, is provided with spring (7) between base (8) and supports insulative plate (5).
9. sensor as claimed in claim 8, it is characterized in that: the upper end of described urceolus (1) is provided with inner convex platform (14), the internal diameter of inner core (2) is less than the internal diameter of inner convex platform (14), the external diameter of inner core (2) is greater than the internal diameter of inner convex platform (14), the upper end of inner core (2) is provided with extending (3), and extending (3) can stretch out urceolus (1) along inner convex platform (14).
10. sensor as claimed in claim 9, it is characterized in that: described sensor also comprises upper cover (16), be provided with pressed end (15) in upper cover (16), the external diameter of pressed end (15) is greater than the internal diameter of inner convex platform (14).
Priority Applications (1)
| 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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| 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 true CN104833702A (en) | 2015-08-12 |
| CN104833702B CN104833702B (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| 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 |
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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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| CN104833702B (en) | 2018-01-05 |
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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. |