CN101566547A - Buoyancy method for rapidly measuring grain moisture and tester thereof - Google Patents

Buoyancy method for rapidly measuring grain moisture and tester thereof Download PDF

Info

Publication number
CN101566547A
CN101566547A CNA2008100506253A CN200810050625A CN101566547A CN 101566547 A CN101566547 A CN 101566547A CN A2008100506253 A CNA2008100506253 A CN A2008100506253A CN 200810050625 A CN200810050625 A CN 200810050625A CN 101566547 A CN101566547 A CN 101566547A
Authority
CN
China
Prior art keywords
ware box
water
buoyancy
sample
moisture
Prior art date
Application number
CNA2008100506253A
Other languages
Chinese (zh)
Other versions
CN101566547B (en
Inventor
田志和
Original Assignee
田志和
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 田志和 filed Critical 田志和
Priority to CN 200810050625 priority Critical patent/CN101566547B/en
Publication of CN101566547A publication Critical patent/CN101566547A/en
Application granted granted Critical
Publication of CN101566547B publication Critical patent/CN101566547B/en

Links

Abstract

The invention relates to a buoyancy method for rapidly measuring grain moisture and a tester thereof. The measuring method is realized by five steps of dish box liquid injection and suppressing tare weighing, sample preparation, sample weighing, liquid injection and suppressing gross weight weighing and result calculation. The tester comprises an electronic balance, a liquid injection and suppressing device, a data processing display device, a water groove and a dish box. By adopting the grain moisture measuring method and the special tester thereof, the invention utilizes the principle of Archimedes buoyancy law, overcomes the disadvantages of long operation time of a drying method, untimely guidance and slightly great error of other rapid moisture testers, has both the accuracy of the drying method and the characteristic of rapid measurement of various moisture testers, has wide moisture measuring range and multiple measuring varieties, is not influenced by factors such as grains, temperature, and the like, and is widely suitable for grain storage business and the field of grain processing.

Description

Buoyancy method for rapidly measuring grain moisture and analyzer thereof
Technical field
The present invention relates to a kind of assay method of grain moisture, a kind of specifically method that adopts buoyancy method fast measuring grain moisture the invention still further relates to the special-purpose grain moisture analyzer that adopts this method.
Background technology
Water percentage is as an important quality index of grain, directly has influence on each links such as purchase, sale, allocation and transportation, storage, processing of grain, and it is very great to measure grain moisture content meaning concerning grain department.How fast, measure grain moisture content accurately, easily, it is a global problem, many countries such as the U.S., Japan, France, Britain, Sweden are all in positive discussion now, though the employing method is a lot, but all there are many deficiencies, for example: China's national standard method (oven drying method), though the accuracy of detection height, but time-consuming, power consumption is big, efficient is low, can't realize quick online detection; Though that capacitance method has is simple in structure, cost is low, fireballing advantage, is subjected to disturbing factor many, measuring accuracy is low, poor stability; Electric-resistivity method is surveyed the water narrow range to the sample requirement height, is not suitable for the mensuration of high-moisture grain; Though the infrared ray heating is measured fast, easily cause the dry loss, measuring accuracy is low, though near infrared collimation method analysis speed is fast, the kind of sample, size, density, environment temperature, vibration etc. are all influential to measurement result, poor stability, applicable surface are little; Also have picture microwave and Radio Law, nuclear magnetic resonance method, NEUTRON METHOD, acoustic method or the like, but all corresponding condition is required high because of it, many reasons such as involve great expense are not widely used.At present, also not very perfect in China's water content detection technology, the aspect that the online water content detection of links such as domestic grain purchases, oven dry still rests on subjective inspection and judges by rule of thumb, measurement result neither science is also unreliable.
In first to file " a kind of grain moisture determination method " patent No. be: 01121347.7, disclose the grain moisture content assay method, this patent has realized purposes such as easy and simple to handle, test data is accurate to a certain extent, but also exist the undulatory property of test data big, the not accurate enough stable shortcoming and defect of test result.
And buoyancy method cereal moisture content Fast Detection Technique can overcome the deficiency of above-mentioned all multi-methods fully, have fast, accurately, characteristics such as energy-saving and environmental protection.Fundamentally having solved the global problem of cereal moisture percentage fast measuring, is the revolution that cereal moisture percentage is measured.
Summary of the invention
Purpose of the present invention is exactly according to " Archimedes's the law of buoyancy " principle, provides a kind of undulatory property of test data little, and test result is stable buoyancy method for rapidly measuring grain moisture accurately; The present invention also provides a kind of this method of employing, integrate fast, accurately, the buoyancy method rapidly measuring grain moisture instrument of characteristics such as energy-saving and environmental protection.
The object of the present invention is achieved like this, and this buoyancy method for rapidly measuring grain moisture is realized by following steps:
1, the tare weight weighing is suppressed in the fluid injection of ware box: clean ware box is filled with clear water by the circular open on it, cover ware box plug, the hand-tight make-up jackscrew, clip by pressure efferent duct top is clamped, observing time relay, water filling suppressed for 9 seconds, the ware box is put into tank water hang over weighing on electronic balance 1 lower scale hook, after treating the electronic balance data stabilization, the reception tare weight also is stored into to the integrated circuit assembly.
2, specimen preparation: choose sample, directly pulverize with comminutor (grain system experiment micromill), 19.0% moisture and following its smashing fineness of corn be by the 1.5mm round-hole mesh be no less than 90% (flow into the sieve pulverizing at the end after sample), above its smashing fineness of corn of other granular grain and 19% moisture is to be no less than 90% by the 2.5mm round-hole mesh.Pulverize afterwards standby in the weighing in time or the sealing bag of packing on electronic balance.
3, heavily weighing of sample claims the sample vessel to take by weighing with special use and pulverizes back sample 9.000~9.100 grams, receives sample tuple certificate simultaneously and is stored to integrated circuit assembly 20.
4, the gross weight weighing is suppressed in fluid injection: sample is poured in the moisture title sample ware box, treat that sample all immerses back injector water filling in the ware box in the water naturally, about making the water surface a little less than ware box mouth lower edge 2mm, lid ware box plug is tightened jackscrew, clip by pressure efferent duct top is clamped, observing time relay, water filling suppressed for 9 seconds, and the ware box is taken off, hangs over weighing on the electronic balance lower scale hook, after treating that the balance numeral is stable, receive the gross weight data and store the integrated circuit assembly.
5, the result calculates: this instrument calculates automatically according to following " water content detection formula ", and after, gross weight heavy when ware box tare weight, sample all received by main frame, display screen can show the sample moisture value automatically.
Rapidly measuring grain moisture specialized equipment--analyzer
It comprises electronic balance, fluid injection pressure device, data processing display device, tank, ware box, described electronic balance and data processing display device are electrically connected, fluid injection pressure device, data processing display device are arranged in the casing of main frame, constitute the main body of analyzer.
Described fluid injection pressure device comprises circuit control section, motor, piston/cylinder, pressure-regulating valve, water intaking valve, pressure efferent duct, recirculatory pipe, water butt, wherein motor be arranged on piston/cylinder above, pressure-regulating valve one end is connected with piston/cylinder, the other end is connected with water intaking valve, pressure-regulating valve is provided with the pressure efferent duct that the top has clip, and recirculatory pipe is connected water butt with water intaking valve; The circuit control section connects motor, finishes fluid injection pressure device control function.
Described circuit control section comprises power switch, power light, pushbutton switch, the time relay, and wherein power switch, power light, pushbutton switch and the time relay are electrically connected.
Described data processing display device comprises integrated circuit assembly, transformer, the display screen of finishing automatic computing function, and wherein integrated circuit assembly, transformer, display screen are electrically connected.
Described ware box comprises the ware box body, bale handle, ware box plug, retaining valve, jackscrew, suspension ring, wherein ware box body inside is the confined air core structure, have circular open above, ware box plug is arranged in the circular open, upper end, side at the ware box body is provided with bale handle, is provided with retaining valve above the ware box body, and the jackscrew that has suspension ring on it is arranged on the centre position of bale handle.
The present invention is owing to adopt above-mentioned grain moisture assay method and special-purpose analyzer, utilize " Archimedes's the law of buoyancy " principle, it is long to have overcome " oven drying method " running time, instruct untimely and other quick moisture teller error sheets shortcoming bigger than normal, the accuracy that promptly has oven drying method has the fast point of various moisture teller measuring speeds again, and it is wide to measure the moisture scope, measure wide in varietyly, be not subjected to the influence of factors such as cereal temperature.Be widely used in grain and store up operation and grain processing field.
The present invention is by the corn sample test to different cultivars, differing maturity, different territorial environment, different in moisture value, different temperatures, with national standard method measurement of comparison error all less than 0.5%: illustrate that it adapts to the corn of different cultivars, and adapt to the varying environment condition, assay accurately and reliably.
The present invention is by comparing experiment to different cultivars grain, and this method is measured cereal resultant errors such as corn, Chinese sorghum, wheat all less than 0.5%.
The contrast experiment of different cultivars corn
We are example with the corn, select representational sample (as: cutin type corn, opaque type corn, high oil corn, corn, waxy corn and seed etc.) to compare experiment, measuring result such as following table:
Measurement result when water temperature is 20 ℃ in table 1 sample natural temperature, the tank
Corn variety Oven drying method is measured average result ZH4-100A grain moisture analyzer is measured average result Comparing result
Positive red 958 ??30.6 ??30.5 ??-0.1
Elder generation beautiful 335 ??27.2 ??27.0 ??-0.2
High oil corn ??23.6 ??23.8 ??+0.2
The milky way 101 ??29.9 ??30.1 ??+0.2
Three Norths 6 ??31.5 ??31.7 ??+0.2
Greenstone 9911 ??32.7 ??32.4 ??-0.3
Former red 65 ??20.7 ??21.0 ??+0.3
Oven dry grain ??14.2 ??14.3 ??+0.1
Airing grain ??14.6 ??14.5 ??-0.1
The car of delivering grain ??30.2 ??30.5 ??+0.3
Seed ??14.9 ??15.1 ??+0.2
Waxy corn ??21.5 ??21.8 ??+0.3
Corn ??32.6 ??33.0 ??+0.4
Grain in storage for years ??12.5 ??12.8 ??+0.3
Table 2 sample temperature is the measurement result during 20 ℃ of water temperatures in-30 ℃, tank
Corn variety Oven drying method is measured average result ZH4-100A grain moisture analyzer is measured average result Comparing result
Positive red 958 ??30.6 ??30.3 ??-0.3
Elder generation beautiful 335 ??27.2 ??26.8 ??-0.4
High oil corn ??23.6 ??23.5 ??-0.1
The milky way 101 ??29.9 ??29.8 ??-0.1
Three Norths 6 ??31.5 ??31.6 ??+0.1
Greenstone 9911 ??32.7 ??32.3 ??-0.4
Former red 65 ??20.7 ??20.9 ??+0.2
Oven dry grain ??14.2 ??14.3 ??+0.1
Airing grain ??14.6 ??14.4 ??-0.2
The car of delivering grain ??30.2 ??30.3 ??+0.1
Seed ??14.9 ??15.0 ??+0.1
Waxy corn ??21.5 ??21.7 ??+0.2
Corn ??32.6 ??32.9 ??+0.3
Grain in storage for years ??12.5 ??12.7 ??+0.2
Measurement result when water temperature is 10 ℃ in table 3 sample natural temperature, the tank
Corn variety Oven drying method is measured average result ZH4-100A grain moisture analyzer is measured average result Comparing result
Positive red 958 ??30.6 ??30.4 ??-0.2
Elder generation beautiful 335 ??27.2 ??26.9 ??-0.3
High oil corn ??23.6 ??23.3 ??-0.3
The milky way 101 ??29.9 ??29.8 ??-0.1
Three Norths 6 ??31.5 ??31.4 ??-0.1
Greenstone 9911 ??32.7 ??32.3 ??-0.4
Former red 65 ??20.7 ??20.8 ??+0.1
Oven dry grain ??14.2 ??14.1 ??-0.1
Airing grain ??14.6 ??14.3 ??-0.3
The car of delivering grain ??30.2 ??29.8 ??-0.4
Seed ??14.9 ??14.8 ??-0.1
Waxy corn ??21.5 ??21.6 ??+0.1
Corn ??32.6 ??33.0 ??+0.4
Grain in storage for years ??12.5 ??12.5 ??0
Measurement result when water temperature is 30 ℃ in table 4 sample natural temperature, the tank
Corn variety Oven drying method is measured average result ZH4-100A grain moisture analyzer is measured average result Comparing result
Positive red 958 ??30.6 ??30.9 ??+0.3
Elder generation beautiful 335 ??27.2 ??27.4 ??+0.3
High oil corn ??23.6 ??23.9 ??+0.3
The milky way 101 ??29.9 ??30.3 ??+0.4
Three Norths 6 ??31.5 ??31.9 ??+0.4
Greenstone 9911 ??32.7 ??32.9 ??+0.2
Former red 65 ??20.7 ??21.1 ??+0.4
Oven dry grain ??14.2 ??14.4 ??+0.2
Airing grain ??14.6 ??14.8 ??+0.2
The car of delivering grain ??30.2 ??30.4 ??+0.2
Seed ??14.9 ??15.1 ??+0.2
Waxy corn ??21.5 ??21.9 ??+0.4
Corn ??32.6 ??33.1 ??+0.5
Grain in storage for years ??12.5 ??12.8 ??+0.3
Water temperature is the repeated measurement result of room temperature in table 5 sample natural temperature, the tank
The contrast experiment of different cultivars grain.
We select different sample grains to compare experiment.The result is as follows:
Measurement result when water temperature is room temperature in table 6 sample natural temperature, the tank
Different cultivars grain Oven drying method is measured average result ZH4-100A grain moisture analyzer is measured average result Comparing result
Mi Gaoliang ??14.4 ??14.2 ??-0.2
Material jowar four assorted 25 ??16.5 ??16.8 ??+0.3
Sticking jowar ??16.7 ??17.2 ??+0.5
Hard wheat ??13.5 ??13.8 ??+0.3
The opaque wheat ??13.8 ??14.2 ??+0.4
Soybean fourth 70 ??10.8 ??11.6 ??+0.8
Soybean lucky beautiful 47 ??11.2 ??10.5 ??-0.7
Soybean lucky beautiful 41 ??13.7 ??13.4 ??-0.3
Paddy Feng You 307 ??18.3 ??17.9 ??-0.4
Paddy is overfulfiled a production target No. one ??16.2 ??16.2 ??0
The lucky round-grained rice 806 of paddy ??17.8 ??17.7 ??-0.1
The lucky 02-2 of paddy ??14.5 ??14.8 ??+0.3
Paddy long white 15 ??14.4 ??14.5 ??+0.1
Rice Feng You 307 ??16.2 ??16.1 ??-0.1
Rice is overfulfiled a production target No. one ??13.5 ??13.7 ??+0.2
The lucky 02-2 of rice ??14.5 ??14.4 ??-0.1
Red bean 1 ??13.0 ??13.1 ??+0.1
Red bean 2 ??12.7 ??12.6 ??-0.1
Experimental result is discussed
By to the test of the corn sample of different cultivars, differing maturity, different territorial environment, different in moisture value, different temperatures, with national standard method measurement of comparison error all less than 0.5%; Illustrate that this method adapts to the corn of different cultivars, and adapt to the varying environment condition, assay accurately and reliably.
By different cultivars grain is compared experiment, this method is measured cereal resultant errors such as corn, jowar, wheat all less than 0.5%.It is bigger than normal to measure the oil plant error, so this method only is applicable to the fast detecting of cereal moisture content.
" buoyancy method " gathers as follows with 130 ℃ of 40 minutes oven drying method contrast experiment conclusions:
Description of drawings
Fig. 1 is a buoyancy method rapidly measuring grain moisture instrument one-piece construction synoptic diagram
Fig. 2 is the utility model main frame inner structure synoptic diagram
Fig. 3 is the utility model circuit theory diagrams
Fig. 4,5 is the utility model ware box structural representation
Embodiment
Shown in accompanying drawing 1: this rapidly measuring grain moisture instrument comprises electronic balance 1, fluid injection pressure device 2, data processing display device 3, tank 4, ware box 5, described electronic balance 1 and data processing display device 3 are electrically connected, fluid injection pressure device 2, data processing display device 3 are arranged in the casing 6 of main frame, constitute the main body of analyzer.
Shown in accompanying drawing 2: described fluid injection pressure device 2 comprises circuit control section 7, motor 8, piston/cylinder 9, pressure-regulating valve 10, water intaking valve 11, pressure efferent duct 12, recirculatory pipe 13, water butt 14, wherein motor 8 be arranged on piston/cylinder 9 above, pressure-regulating valve 10 1 ends are connected with piston/cylinder 9, the other end is connected with water intaking valve 11, pressure-regulating valve 10 is provided with the pressure efferent duct 12 that the top has clip 15, and recirculatory pipe 13 is connected water butt 14 with water intaking valve 11; Circuit control section 7 connects motor 8, finishes fluid injection pressure device 2 control function.
Shown in accompanying drawing 2,3: described circuit control section 7 comprises power switch 16, power light 17, pushbutton switch 18, the time relay 19, and wherein power switch 16, power light 17, pushbutton switch 18 and the time relay 19 are electrically connected.
Described data processing display device 3 comprises integrated circuit assembly 20, transformer 21, the display screen 22 of finishing automatic computing function, and wherein integrated circuit assembly 20, transformer 21, display screen 22 are electrically connected.
Shown in accompanying drawing 4,5: described ware box 5 comprises ware box body 23, bale handle 24, ware box plug 25, retaining valve 26, jackscrew 27, suspension ring 28, wherein ware box body 23 inside are the confined air core structure, have circular open 29 above, ware box plug 25 is arranged in the circular open 29, upper end, side at ware box body 23 is provided with bale handle 24, is provided with retaining valve 26 above the ware box body 23, and the jackscrew 27 that has suspension ring 28 on it is arranged on the centre position of bale handle 24.
" buoyancy method " detects the method for operating of moisture
1, the tare weight weighing is suppressed in the fluid injection of ware box: clean ware box 5 is filled with clear water by circular open 29, cover ware box plug 25, hand-tight make-up jackscrew 27, clip 15 by pressure efferent duct 12 tops is clamped, observing time, relay 19, and water filling suppressed for 9 seconds, ware box 5 is put into tank 4 water hang over weighing on electronic balance 1 lower scale hook, after treating electronic balance 1 data stabilization, the reception tare weight also is stored into to integrated circuit assembly 20.
2, specimen preparation: choose representative running sample, directly pulverize with comminutor (grain system experiment micromill), 19.0% moisture and following its smashing fineness of corn be by the 1.5mm round-hole mesh be no less than 90% (flow into the sieve pulverizing at the end after sample), above its smashing fineness of corn of other granular grain and 19% moisture is to be no less than 90% by the 2.5mm round-hole mesh.Pulverize afterwards standby in the weighing in time or the sealing bag of packing on electronic balance 1.
3, heavily weighing of sample claims the sample vessel to take by weighing with special use and pulverizes back sample 9.000~9.100 grams, receives sample tuple certificate simultaneously and is stored to integrated circuit assembly 20.
4, the gross weight weighing is suppressed in fluid injection: sample is poured in the moisture title sample ware box 5, treat that sample all immerses back injector water filling in ware box 5 in the water naturally, about making the water surface a little less than ware box mouth lower edge 2mm, lid ware box plug 25, tighten jackscrew 27, clip 15 by pressure efferent duct 12 tops is clamped, observing time, relay 19, water filling suppressed for 9 seconds, ware box 5 is taken off, hangs over weighing on electronic balance 1 lower scale hook, after treating that the balance numeral is stable, receive the gross weight data and store integrated circuit assembly 20.
5, the result calculates: this instrument calculates automatically according to following " water content detection formula ", and after, gross weight heavy when ware box 5 tare weights, sample all received by main frame, display screen can show the sample moisture value automatically.
Buoyancy method rapidly measuring grain moisture principle:
Utilize " Archimedes's the law of buoyancy " principle, sample is immersed the weighing that suspends in the water, when the moisture weightlessness in the sample is " 0 ", weigh the weight of dry in water, converse the dry percent again, derive cereal moisture percentage.
1.1 how weightless the moisture in the sample be " 0 " when immersing suspension weighing in the water?
If: the moisture weight W water=Vd1 in the sample ... 1.
In the formula: the volume ml of moisture in the V--sample
The density value g/ml of water in the d1--sample
Because sample is to immerse weighing in the water, the suffered buoyancy f=Vd2 in water of the moisture in the sample so fully ... 2.
In the formula: moisture suffered buoyancy g in water in the f--sample
Water volume ml in the V--sample
The density value g/ml of water in the d2--tank
Because the water that adds in the sample-containing dish box is taken at water in the groove, add the ware box and be placed in the tank all the time and operate, water in the sample and the water in the tank have just reached temperature balance, i.e. d1=d2 like this
Therefore: W water-f=Vd1-Vd2=V (d1-d2)=0
So when sample immersed in the water suspension weighing, the moisture in the sample just weightlessness was " 0 ".
1.2 the moisture in the sample is weightless when being " 0 " in water, what weighing was come out on the balance is exactly the weight of dry in water.Utilize formula to convert and draw the dry percent, finally determine the percent water rate.
The moisture formula is derived as follows:
W=W×%+d3V1………………………………………………③
A=(d3-d2)V1………………………………………………④
The heavy g of W-sample
X-sample moisture percent (%)
D3-sample dry density value (g/ml)
V1-sample dry mass volume ml
The A-dry is weight g in water
The density value g/ml of water in the d2-tank
3., 4. the arrangement of two formulas is following formula:
x=100-100d3A/(d3-d2)W……………………………⑤
The 5. middle 100d3/ (d3-d2) of formula is dry reduced parameter (Q).D2 is constant value (density value 0.998230 when the water intaking temperature is 20 ℃), and d3 is the dry constant value (variable quantity≤0.003, corn, jowar, wheat are constant values, and other kind respectively has its fixing dry constant value) under this working specification.
Formula promptly is reduced to x=100-QA/W.

Claims (7)

1, a kind of buoyancy method rapidly measuring grain moisture instrument, this analyzer comprises electronic balance (1), tank (4), it is characterized in that: it also comprises fluid injection pressure device (2), data processing display device (3), ware box (5), described electronic balance (1) and data processing display device (3) are electrically connected, and fluid injection pressure device (2), data processing display device (3) are arranged on the interior main body that constitutes analyzer of casing (6) of main frame.
2, a kind of buoyancy method rapidly measuring grain moisture instrument according to claim 1, it is characterized in that: described fluid injection pressure device (2) comprises circuit control section (7), motor (8), piston/cylinder (9), pressure-regulating valve (10), water intaking valve (11), pressure efferent duct (12), recirculatory pipe (13), water butt (14), wherein motor (8) be arranged on piston/cylinder (9) above, pressure-regulating valve (10) one ends are connected with piston/cylinder (9), the other end is connected with water intaking valve (11), pressure-regulating valve (10) is provided with the pressure efferent duct (12) that the top has clip (15), and recirculatory pipe (13) is connected water butt (14) with water intaking valve (11); Circuit control section (7) connects motor (8), finishes fluid injection pressure device (2) control function.
3, a kind of buoyancy method rapidly measuring grain moisture instrument according to claim 1, it is characterized in that: described circuit control section (7) comprises power switch (16), power light (17), pushbutton switch (18), the time relay (19), and wherein power switch (16), power light (17), pushbutton switch (18) and the time relay (19) are electrically connected.
4, a kind of buoyancy method rapidly measuring grain moisture instrument according to claim 1, it is characterized in that: described data processing display device (3) comprises integrated circuit assembly (20), transformer (21), the display screen (22) of finishing automatic computing function, and wherein integrated circuit assembly (20), transformer (21), display screen (22) are electrically connected.
5, a kind of buoyancy method rapidly measuring grain moisture instrument according to claim 1, it is characterized in that: described ware box (5) comprises ware box body (23), bale handle (24), ware box plug (25), retaining valve (26), jackscrew (27), suspension ring (28), wherein ware box body (23) inside is the confined air core structure, have circular open (29) above, ware box plug (25) is arranged in the circular open (29), upper end, side at ware box body 23 is provided with bale handle (24), be provided with retaining valve (26) above the ware box body (23), the jackscrew (27) that has suspension ring (28) on it is arranged on the centre position of bale handle (24).
6, a kind of buoyancy method for rapidly measuring grain moisture is characterized in that: this assay method suppresses by the fluid injection of ware box that the gross weight weighing is suppressed in the heavily weighing of tare weight weighing, specimen preparation, sample, fluid injection, the result calculates five steps and realizes.
7, a kind of buoyancy method for rapidly measuring grain moisture according to claim 6 is characterized in that:
1., the tare weight weighing is suppressed in the fluid injection of described ware box: clean ware box (5) is filled with clear water by circular open (29), cover ware box plug (25), hand-tight make-up jackscrew (27), clip (15) by pressure efferent duct (12) top is clamped, relay observing time (19), water filling suppressed for 9 seconds, ware box (5) is put into tank (4) water hang over weighing on electronic balance (1) lower scale hook, after treating electronic balance (1) data stabilization, the reception tare weight also is stored into to integrated circuit assembly (20);
2., the gross weight weighing is suppressed in described fluid injection: sample is poured in the moisture title sample ware box (5), treat that sample all immerses back injector water filling in ware box (5) in the water naturally, about making the water surface a little less than ware box mouth lower edge 2mm, lid ware box plug (25), tighten jackscrew (27), clip (15) by pressure efferent duct (12) top is clamped, relay observing time (19), water filling suppressed for 9 seconds, ware box (5) is taken off, hangs over weighing on electronic balance (1) lower scale hook, after treating that the balance numeral is stable, receive the gross weight data and store integrated circuit assembly (20).
CN 200810050625 2008-04-22 2008-04-22 Buoyancy method for rapidly measuring grain moisture and tester thereof CN101566547B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200810050625 CN101566547B (en) 2008-04-22 2008-04-22 Buoyancy method for rapidly measuring grain moisture and tester thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200810050625 CN101566547B (en) 2008-04-22 2008-04-22 Buoyancy method for rapidly measuring grain moisture and tester thereof

Publications (2)

Publication Number Publication Date
CN101566547A true CN101566547A (en) 2009-10-28
CN101566547B CN101566547B (en) 2013-02-13

Family

ID=41282809

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200810050625 CN101566547B (en) 2008-04-22 2008-04-22 Buoyancy method for rapidly measuring grain moisture and tester thereof

Country Status (1)

Country Link
CN (1) CN101566547B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359922A (en) * 2011-09-29 2012-02-22 陆明岳 Method and apparatus for rapid measuring of density
CN103808591A (en) * 2014-02-17 2014-05-21 长春吉大科学仪器设备有限公司 Online detection method for water in continuous grain drying process
CN104297502A (en) * 2014-10-15 2015-01-21 长沙瑞翔科技有限公司 Automatic moisture testing device and automatic moisture tester
CN108732208A (en) * 2018-05-22 2018-11-02 上海交通大学 A kind of Crop moisture sensor and the method for measuring grain moisture
CN112067501A (en) * 2020-09-22 2020-12-11 吉林大学 Grain moisture content rapid detection method and detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121151A (en) * 1977-04-27 1978-10-17 Dickey-John Corporation Analysis instrument
CN1219201C (en) * 2001-06-01 2005-09-14 田志和 Grains moisture testing method
CN201196620Y (en) * 2008-04-23 2009-02-18 田志和 Cereal moisture fast measuring instrument by buoyant force method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359922A (en) * 2011-09-29 2012-02-22 陆明岳 Method and apparatus for rapid measuring of density
CN102359922B (en) * 2011-09-29 2013-08-14 陆明岳 Apparatus for rapid measuring of density
CN103808591A (en) * 2014-02-17 2014-05-21 长春吉大科学仪器设备有限公司 Online detection method for water in continuous grain drying process
CN103808591B (en) * 2014-02-17 2015-10-21 长春吉大科学仪器设备有限公司 A kind of continous way Grain Drying Process moisture on-line detection method
CN104297502A (en) * 2014-10-15 2015-01-21 长沙瑞翔科技有限公司 Automatic moisture testing device and automatic moisture tester
CN104297502B (en) * 2014-10-15 2016-01-13 长沙瑞翔科技有限公司 Auto moisture proving installation and auto moisture tester
CN108732208A (en) * 2018-05-22 2018-11-02 上海交通大学 A kind of Crop moisture sensor and the method for measuring grain moisture
CN108732208B (en) * 2018-05-22 2020-11-06 上海交通大学 Grain moisture sensor and method for measuring grain moisture
CN112067501A (en) * 2020-09-22 2020-12-11 吉林大学 Grain moisture content rapid detection method and detector

Also Published As

Publication number Publication date
CN101566547B (en) 2013-02-13

Similar Documents

Publication Publication Date Title
Figura et al. Food physics: physical properties-measurement and applications
CN102944571B (en) A kind of method measuring different conditions moisture in coal
Flint et al. 2.2 Particle Density
CN102721516B (en) Method for testing internal volume of container by gas tightness detector by aid of gas-release process
CN202386563U (en) Novel electronic measurement type digital rice storage device
CN103308293A (en) High temperature valve detecting and testing system
CN103868954A (en) Grain humidity detection circuit
Berbert et al. PH—postharvest technology: Dielectric properties of common bean
CN101339138B (en) Explosive stability nitrous oxides concentration detection device
Temple et al. Thin layer drying of black tea
CN105403294B (en) Granary storage gravimetric analysis sensing method and its device based on polynomial expansion
CN106404126B (en) A kind of compensation method of multicomponent gas flow measurement and metering device
CN102507480B (en) Method for nondestructively and quickly measuring moisture content of tea leaf based on 12 characteristic wavelengths
CN103808591A (en) Online detection method for water in continuous grain drying process
CN101949892A (en) Gas concentration detection method based on RBF (Radial Basis Function) artificial neural network and SAW (Surface Acoustic Wave) gas sensor
CN101281984A (en) Method and apparatus for detecting inner pressure of lithium ion battery
CN205879746U (en) Waterproof material permeability testing arrangement
CN102426151A (en) Multifunctional soil-water characteristic curve tester
CN201327427Y (en) Calibrating device for temperature and moisture measurement
CN202939322U (en) Device for calibrating humidity dynamic response characteristics of sonde with double-flow method
CN102706778B (en) Measuring device of effective diffusion coefficient of weak adsorption gas in bulk nano-porous material under low pressure
CN103424421A (en) Method for measuring coal sample methane adsorbing capacity through low-field nuclear magnetic resonance
CN202210005U (en) Heat energy meter flow full-automatic detection device
CN101470020A (en) Detection system and method for mesomeric state hydrogen gas consumption
CN206057126U (en) A kind of shale multi component adsorption experimental provision

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model