CN107219264A - A kind of detection method of resistance-type moisture analyser - Google Patents
A kind of detection method of resistance-type moisture analyser Download PDFInfo
- Publication number
- CN107219264A CN107219264A CN201710400875.4A CN201710400875A CN107219264A CN 107219264 A CN107219264 A CN 107219264A CN 201710400875 A CN201710400875 A CN 201710400875A CN 107219264 A CN107219264 A CN 107219264A
- Authority
- CN
- China
- Prior art keywords
- value
- moisture
- cereal
- temperature
- detected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/043—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a granular material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a kind of detection method of resistance-type moisture analyser, including：Moisture measurement request is received, cereal to be detected is put into by region to be detected by controlled motor；The operation of controlled motor, is rolled to the cereal to be detected, and the current value passed through in the different detection zones in the cereal to be detected of different test points is obtained in roller compaction process；The current value is converted into magnitude of voltage；And the moisture value of the cereal to be detected is obtained according to the magnitude of voltage.The embodiment provided using the present invention, improves the accuracy of the measurement of cereal moisture percentage moisture.
Description
Technical field
The present invention relates to grain moisture detection technique field, more particularly to a kind of detection side of resistance-type moisture analyser
Method.
Background technology
Cereal moisture percentage is the ratio of the moisture and weight included in specific cereal, be influence one of grain quality it is important
Factor.In practical application, cereal moisture percentage may decide that the security of grain storage, similarly cereal processing technology and circulation
Process needs to use.For example need to be dried in the process of cereal, drying is to reach moisture in reduction cereal
Purpose, typically using with hot blast or directly being heated to cereal, to reduce the moisture content of cereal, but be dried to assorted
Degree can stop, it is necessary to be determined by the cereal moisture percentage obtained.So that, can not in the process to cereal
Influence cereal nutritional ingredient and quality.
Existing resistor type cereal device for measuring moisture and method measure cereal resistance using voltage method, but due to cereal electricity
Resistance is very big, especially when grain moisture content is relatively low so that measurement signal is weak, signal to noise ratio is low, be unfavorable for signal transmission, and cereal institute
Influence of place's environment to cereal moisture percentage, which does not have, to be taken into account, and may result in measurement result untrue, inaccurate.
It can be seen that existing online resistance formula grain moisture measuring device can not accurately obtain the moisture content of cereal.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of detection method of resistance-type moisture analyser, to improve paddy
The measurement result of water content of matter.
To achieve the above object, the present invention provides following technical scheme：A kind of detection side of resistance-type moisture analyser
Method, comprises the following steps：
Moisture measurement request is received, cereal to be detected is put into by region to be detected by controlled motor；
The operation of controlled motor, is rolled to the cereal to be detected, and the different inspections of acquisition in roller compaction process
Survey the current value passed through in region in the cereal to be detected of different test points；
The current value is converted into magnitude of voltage；And the moisture value of the cereal to be detected is obtained according to the magnitude of voltage.
Optionally, methods described also includes：
Temperature detection is carried out to environment temperature where the cereal to be detected, temperature value is obtained；
It is described that the current value is converted into magnitude of voltage；And the moisture of the cereal to be detected is obtained according to the magnitude of voltage
Value, including：
The current value is converted into magnitude of voltage；And the paddy to be detected is obtained according to the magnitude of voltage and the temperature value
The moisture value of thing.
Optionally, methods described also includes：
The moisture value obtained is sent to display device, to pass through water of the display device to the cereal to be detected
Score value is shown, is checked for user.
Optionally, it is described that temperature detection is carried out to environment temperature where the cereal to be detected, temperature value is obtained, including：
Using temperature sensor, temperature detection is carried out to environment temperature where the cereal to be detected, temperature value is obtained.
Optionally, methods described also includes：
, being constituted according to the temperature value and the temperature value if the temperature value is higher than preset temperature value
Moisture correction formula, revised moisture value；
The correction formula is embodied as：
MCorrection value=MMoisture value-P*(T1-T2)
Wherein, the MCorrection valueFor revised moisture value, MMoisture valueFor the moisture value obtained, P is default parameter value, T1
The temperature value, T2For preset parameter value；
, being constituted according to the temperature value and the temperature value if the temperature value is less than preset temperature value
Moisture correction formula, revised moisture value；
The correction formula is embodied as：
MCorrection value=MMoisture value+P*(T2-T1)
Wherein, the MCorrection valueFor revised moisture value, MMoisture valueFor the moisture value obtained, P is default parameter value, T1
The temperature value, T2For preset parameter value.
Compared with prior art, a kind of detection method of resistance-type moisture analyser of the invention has following beneficial effect
Really：
(1) a kind of, detection method of resistance-type moisture analyser of the invention, the present invention is used the resistance signal of measurement
Frequency signal is converted into, grain moisture content is measured by converting electrical current into voltage method, it is possible to surveyed by single-chip microcomputer
Amount, is designed by software optimization, fast and accurately can carry out moisture measurement to samples such as all kinds of foodstuff grains；
(2), a kind of detection method of resistance-type moisture analyser of the invention, passes through the inspection to cereal ambient temperature
Survey, the moisture value of cereal to be detected is modified by temperature value, water is improved with further methods described of the embodiment of the present invention
The accuracy of score value.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the detection method of the resistance-type moisture analyser of the present invention；
Fig. 2 is another schematic flow sheet of the detection method of the resistance-type moisture analyser of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of invention of greater clarity, below by accompanying drawing and embodiment, to this
Inventive technique scheme is further elaborated.However, it should be understood that specific embodiment described herein is only to solve
Technical solution of the present invention is released, the scope of technical scheme is not intended to limit the invention.
Referring to Fig. 1, Fig. 1 is a kind of schematic flow sheet of the detection method of resistance-type moisture analyser of the present invention, described
Method includes step：
S101, receives moisture measurement request, cereal to be detected is put into region to be detected by controlled motor；
It should be noted that cereals to be detected can be selected by the contact panel or button on human-computer interaction interface
, not exemplary, the cereal type that can be selected is corn, wheat, soybean etc..It is exemplary according to the type of selection, be
Soybean, sets the target component related to measurement soybean, clicks on start button to send the order of moisture measurement after setting completed,
It is used to performing in the embodiment of the present invention after the module or equipment of the detection method of resistance-type moisture analyser receive order
The rotation of controlled motor, for example, rotated forward by controlled motor cereal to be detected being put into region to be detected, in case carrying out following
Detection work.
It is set as according to the cereal type of selection and need grain-drying in addition, target component can also include moisture
The moisture value reached is set, exemplary, and the drying to soybean is, it is necessary to which the moisture value reached is no more than 12% i.e.
Can, it is the condition dried to soybean stopping when moisture value reaches 12%.Proceed water it is understood that working as
The further PROCESS FOR TREATMENT effect of soybean may be influenceed if dividing drying, and can avoid for a long time making soybean progress drying
Into the wasting of resources.
S102, the operation of controlled motor is rolled to the cereal to be detected, and obtains in roller compaction process different institutes
State the current value passed through in detection zone in the cereal to be detected of different test points；
It is understood that cereal to be detected is put into after region to be detected by motor, motor can also be passed through
Control rolling wheel cereal to be detected is rolled, in roller compaction process moisture transducer can with direct measurement detection zone not
With the moisture value of the cereal of test point, it is to be understood that it is more unilateral to obtain grain moisture value by way of directly obtaining,
Because what is obtained is local moisture value, and the mode obtained is not accurate enough, so in the embodiment of the present invention, can pass moisture
Sensor is arranged between two rolling wheels of Moisture Meter, for rolling cereal to be measured, and by the rolling wheel in roller compaction process
The numerical value of middle acquisition, in real time to the collection of moisture, obtains gathered data.
It is understood that the rolling wheel of motor results in the current value of real-time change during rolling, in addition
Can be obtained by physics knowledge, when cereal resistance value for it is known when, you can obtaining flowing through the magnitude of voltage of cereal, (magnitude of voltage is
The product of resistance value and current value).
S103, magnitude of voltage is converted into by the current value；And the water of the cereal to be detected is obtained according to the magnitude of voltage
Score value.
The relation research based on grain moisture and resistance of the invention, the different grain moisture contents of discovery, its resistance also not phase
Together, grain moisture content is bigger, and its resistance value is smaller, conversely, grain moisture content is smaller, its resistance value is bigger, therefore, and the present invention is logical
The resistance value of measurement cereal is crossed to determine the moisture value of cereal.
For simplicity, after being calculated according to moisture transducer to resistance value, the resistance value of cereal is calculated, due to electricity
Flow valuve is known measured value, it is possible to obtain magnitude of voltage.Further according to the voltage and moisture prestored in main control module
The calculation formula of value, and then target moisture value can be obtained.
Exemplary, the relation of specific magnitude of voltage and target moisture value is as follows：
Wherein, the f (z) is the magnitude of voltage, pnAccording to the variable of the detection environment set of the cereal to be detected, z
For the target moisture value of cereal.So knowing pnIn the case of i.e. can obtain moisture value.
Exemplary, the magnitude of voltage that must be obtained is 0.45V, in default pnIn the case of, obtaining moisture value is
12.15%.
Referring to Fig. 2, in an alternative embodiment of the invention, methods described also includes：
S104, carries out temperature detection to environment temperature where the cereal to be detected, obtains temperature value；
The S103 is specially S103A：
S103A, magnitude of voltage is converted into by the current value；And treated according to being obtained the magnitude of voltage and the temperature value
Detect the moisture value of cereal.
Exemplary, by experimental study, the relation of resistance and moisture is affected by temperature, in normal temperature -10~40 DEG C
Under conditions of, temperature often raise 1 DEG C of influence to resistance value equivalent to its moisture increase by 0.1%, i.e., 0.1% (humidity)/
DEG C, therefore the present invention realizes accurately measuring for moisture using temperature-compensating processing.Temperature and cereal to be detected can be once set
The penalty function of measurement result.
The moisture value obtained can also be sent in the embodiment of the present invention to display device, to pass through the display device
The moisture value of the cereal to be detected is shown, checked for user.Moisture value is for example exported by human-computer interaction module
Measurement result, user can access the measurement process of current moisture analyser according to measurement result either manually or by human-computer interaction interface
In take.Whether current detection, etc. is for example stopped according to the moisture value of reality really.
Specific S104 can before S101 and S102 can also after S101 and S102, or with S101 and S102
Carry out simultaneously, the embodiment of the present invention is not specifically limited.
Temperature sensor can be utilized in the specific implementation of the present invention, to ring where the cereal to be detected
Border temperature carries out temperature detection, obtains temperature value.
, can be according to the temperature if the temperature value is higher than preset temperature value in a kind of implementation of the present invention
The moisture correction formula constituted of angle value and the temperature value, revised moisture value；
The correction formula is embodied as：
MCorrection value=MMoisture value-P*(T1-T2)
Wherein, the MCorrection valueFor revised moisture value, MMoisture valueFor the moisture value obtained, P is default parameter value, T1
The temperature value, T2For preset parameter value；
Exemplary, it is 12%, T to measure obtained moisture value1The temperature value, T2Be respectively 34 DEG C for preset parameter value,
24 DEG C, P is 0.1%, then obtaining revised moisture value is：12%-0.1%*10=11.99%.
, can be according to described if the temperature value is less than preset temperature value in another implementation of the present invention
The moisture correction formula constituted of temperature value and the temperature value, revised moisture value；
The correction formula is embodied as：
MCorrection value=MMoisture value+P*(T2-T1)
Wherein, the MCorrection valueFor revised moisture value, MMoisture valueFor the moisture value obtained, P is default parameter value, T1
The temperature value, T2For preset parameter value.
Exemplary, it is 12%, T to measure obtained moisture value1The temperature value, T2Be respectively 24 DEG C for preset parameter value,
34 DEG C, P is 0.1%, then obtaining revised moisture value is：12%+0.1%*10=12.01%.
Therefore, by temperature-compensating, the accuracy of grain moisture value measurement can further be improved.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (5)
1. a kind of detection method of resistance-type moisture analyser, it is characterised in that including：
Moisture measurement request is received, cereal to be detected is put into by region to be detected by controlled motor；
The operation of controlled motor, is rolled to the cereal to be detected, and obtains in roller compaction process the different detection zones
The current value passed through in domain in the cereal to be detected of different test points；
The current value is converted into magnitude of voltage；And the moisture value of the cereal to be detected is obtained according to the magnitude of voltage.
2. the detection method of resistance-type moisture analyser according to claim 1, it is characterised in that methods described is also wrapped
Include：
Temperature detection is carried out to environment temperature where the cereal to be detected, temperature value is obtained；
It is described that the current value is converted into magnitude of voltage；And according to the moisture value of the magnitude of voltage acquisition cereal to be detected,
Including：
The current value is converted into magnitude of voltage；And the cereal to be detected is obtained according to the magnitude of voltage and the temperature value
Moisture value.
3. the detection method of resistance-type moisture analyser according to claim 1, it is characterised in that methods described is also wrapped
Include：
The moisture value obtained is sent to display device, to pass through moisture value of the display device to the cereal to be detected
It has been shown that, checked for user.
4. the detection method of resistance-type moisture analyser according to claim 1, it is characterised in that described to described to be checked
Environment temperature carries out temperature detection where surveying cereal, obtains temperature value, including：
Using temperature sensor, temperature detection is carried out to environment temperature where the cereal to be detected, temperature value is obtained.
5. the method according to claim 2 or 4, it is characterised in that methods described also includes：
If the temperature value is higher than preset temperature value, can be according to the temperature value and the moisture constituted of the temperature value
Correction formula, revised moisture value；
The correction formula is embodied as：
MCorrection value=MMoisture value-P*(T1-T2)
Wherein, the MCorrection valueFor revised moisture value, MMoisture valueFor the moisture value obtained, P is default parameter value, T1It is described
Temperature value, T2For preset parameter value；
If the temperature value is less than preset temperature value, can be according to the temperature value and the moisture constituted of the temperature value
Correction formula, revised moisture value；
The correction formula is embodied as：
MCorrection value=MMoisture value+P*(T2-T1)
Wherein, the MCorrection valueFor revised moisture value, MMoisture valueFor the moisture value obtained, P is default parameter value, T1It is described
Temperature value, T2For preset parameter value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400875.4A CN107219264A (en) | 2017-05-31 | 2017-05-31 | A kind of detection method of resistance-type moisture analyser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400875.4A CN107219264A (en) | 2017-05-31 | 2017-05-31 | A kind of detection method of resistance-type moisture analyser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107219264A true CN107219264A (en) | 2017-09-29 |
Family
ID=59947267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710400875.4A Pending CN107219264A (en) | 2017-05-31 | 2017-05-31 | A kind of detection method of resistance-type moisture analyser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107219264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343336A (en) * | 2022-07-18 | 2022-11-15 | 佛冈明阳机械有限公司 | Method and device for measuring moisture of grains, moisture meter and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963478A (en) * | 2006-11-10 | 2007-05-16 | 华南农业大学 | Method and apparatus for testing water ratio of corn |
| CN104713910A (en) * | 2015-02-17 | 2015-06-17 | 合肥艾瑞德电气有限公司 | Resistive grain moisture measurement system |
-
2017
- 2017-05-31 CN CN201710400875.4A patent/CN107219264A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963478A (en) * | 2006-11-10 | 2007-05-16 | 华南农业大学 | Method and apparatus for testing water ratio of corn |
| CN104713910A (en) * | 2015-02-17 | 2015-06-17 | 合肥艾瑞德电气有限公司 | Resistive grain moisture measurement system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343336A (en) * | 2022-07-18 | 2022-11-15 | 佛冈明阳机械有限公司 | Method and device for measuring moisture of grains, moisture meter and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11016049B2 (en) | Agricultural moisture and test weight sensor with co-planar electrodes | |
| CN110567836B (en) | Method and system for rapidly checking and determining tobacco shred online moisture meter | |
| CN104390932B (en) | Moisture content detection method based on Subtractive Infrared Spectroscopy | |
| CN103969614B (en) | A kind of calibration steps of digital multimeter | |
| CN107144605A (en) | A kind of error dressing method of resistance value moisture analyser | |
| CN1963478A (en) | Method and apparatus for testing water ratio of corn | |
| CN103954655A (en) | Apparatus for online automatic detection of water content of dried rice through resistivity method | |
| EP3629703B1 (en) | System for soil moisture monitoring and irrigation mapping | |
| Besharati et al. | Development of a model to estimate moisture contents based on physical properties and capacitance of seeds | |
| CN107219264A (en) | A kind of detection method of resistance-type moisture analyser | |
| CN205941602U (en) | Hall speedtransmitter calibrating installation | |
| CN113607597A (en) | Weighing type fruit and vegetable water content online detection method and system | |
| Fan et al. | Nondestructive measurement of husk-covered corn kernel layer dynamic moisture content in the field | |
| CN108225970A (en) | Device and method for detecting content of solid matters in high-concentration liquid | |
| CN107144601A (en) | A kind of moisture analyser for possessing environment monitoring function | |
| Liu et al. | Research on online moisture detector in grain drying process based on V/F conversion | |
| CN203908986U (en) | Automatic on-line detection device for dried rice moisture content with resistance method | |
| CN106092817A (en) | A kind of bridge construction concrete moisture content monitoring device | |
| CN105572056B (en) | A kind of device and method measuring soil water-containing characteristic | |
| EP2228640B1 (en) | Method for determining the moisture content of wood | |
| Nelson et al. | Use of grain and seed dielectric properties for moisture measurement | |
| Zhang et al. | Measurement of the moisture content in woodchips through capacitive sensing and data driven modelling | |
| Zhao et al. | Nondestructive measurement of moisture content of peanut kernels based on concentric cylindrical capacitance | |
| CN107219263A (en) | One kind of multiple class cereal pattern moisture analysers and moisture measuring method | |
| CN207937301U (en) | Device for detecting content of solid matters in high-concentration liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170929 |
|
| RJ01 | Rejection of invention patent application after publication |