CN109540927A - A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system and method - Google Patents
A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system and method Download PDFInfo
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- CN109540927A CN109540927A CN201811504772.3A CN201811504772A CN109540927A CN 109540927 A CN109540927 A CN 109540927A CN 201811504772 A CN201811504772 A CN 201811504772A CN 109540927 A CN109540927 A CN 109540927A
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- microwave
- fruit
- microwave signal
- signal
- bimodulus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
- G01N22/04—Investigating moisture content
Abstract
The present invention relates to a kind of fruit and vegetable dryness powder moisture bimodulus rapid detection systems, it is characterised in that: power supply is connected to microwave dielectric oscillator, and microwave dielectric oscillator is connected to microwave signal amplifier, and microwave signal amplifier is connected to material bin；Microwave signal receiver one end is connected to material bin, and the other end is connected to wave detector, and wave detector is connected to operational amplifier, operational amplifier is connected to voltmeter, voltmeter is connected to control unit, and liter weighing tester is installed in material bin bottom, and liter weighing tester is connected to control unit by data line.The present invention relates to a kind of fruit and vegetable dryness powder moisture bimodulus rapid detection method, step includes: 1) material pre-treatment；2) fruit vegetable powder is added；3) signal acquisition；4) signal processing；5) detection terminates.The design of the invention is scientific and reasonable, detects bimodulus detection pattern using microwave detection and bulk density, improves the precision of water content detection, guarantee the long term storage and quality of fruit vegetable powder.
Description
Technical field
The invention belongs to technical field of drying, it is related to fruit and vegetable dryness powder water content detection living, in particular to a kind of fruit and vegetable dryness
Powder moisture bimodulus rapid detection system and method.
Background technique
Fresh fruit of vegetables moisture content is high, and Yi Fasheng rots.After fruit vegetable powder is processed into fresh fruit of vegetables drying, water content drop
It is low, storage period can be extended, reduce the expenses such as storage, transport, packaging.Meanwhile fruit and vegetable dryness powder can be added as food auxiliary material
To infant food, dairy produce, baked goods, flavour of food products, color and nutritive value etc. are improved, to improve the additional of product
Value.Therefore, in food processing process, it is very widely used that fresh fruit of vegetables becomes fruit vegetable powder.
During fresh fruit of vegetables is processed into fruit and vegetable dryness powder, moisture content is very important parameter and standard, only moisture
Safe aqueous rate is reduced to hereinafter, bacterium and enzymatic activity could be inhibited, is stored for a long time.Therefore, in the actual production process, fruits and vegetables
The horizontal quickly detection of xeraphium is very necessary.
Currently, common fruits and vegetables moisture detecting method includes: seasoning, electric-resistivity method, infrared reflection method, microwave method etc..Its
In, microwave method is the phenomenon that generating polarization loss in microwave field using hydrone, so that the electric field strength of microwave is decayed, in turn
The moisture content of tested material is measured.Microwave detection method has the advantages that detection is quick, but loads unevenly vulnerable to material
The influence of factor such as shape, density etc., so that testing result is inaccurate.
By the retrieval to patent document, patent document identical with present patent application is not found.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of fruit and vegetable dryness powder moisture bimodulus quickly to detect
System and method improves the precision of water content detection, guarantees the long term storage and quality of fruit vegetable powder.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system, it is characterised in that: including microwave signal transmitting unit, object
Feed bin, microwave signal receiving unit, liter weighing tester and control unit, the microwave signal transmitting unit include power supply, microwave-medium
Oscillator and microwave signal amplifier, the power supply are connected to the microwave dielectric oscillator, and the microwave dielectric oscillator connects
It is connected to the microwave signal amplifier, the microwave signal amplifier is connected to the material bin；The microwave signal receives single
Member includes microwave signal receiver, wave detector, operational amplifier and voltmeter, and microwave signal receiver one end is connected to institute
Material bin is stated, the other end is connected to the wave detector, and the wave detector is connected to the operational amplifier, the operational amplifier
It is connected to the voltmeter, the voltmeter is connected to described control unit, and the liter weighing tester, institute are installed in the material bin bottom
It states liter weighing tester and described control unit is connected to by data line.
Moreover, the microwave signal amplifier and the microwave signal receiver are symmetrically arranged on the material bin both ends.
Moreover, the material bin is made of clear perspex material.
A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection method, it is characterised in that: the step of the detection method are as follows:
1) material pre-treatment: fruit vegetable materials are crushed with pulverizer, sift out the identical fruit of partial size with sieve after crushing
Vegetable powder；
2) fruit vegetable powder is added: the fruit vegetable powder sifted out being added in material bin, and carries out weight to fruit vegetable powder by liter weighing tester
Weighing, and weight signal is transmitted to control unit；
3) signal acquisition: opening the power supply of Microwave emission unit, generates microwave by dielectric oscillator and by microwave amplifier
It is transmitted to material bin, is received through the dry microwave across fruits and vegetables powder material by microwave signal receiver, and letter is carried out by wave detector
Number filtering, reads the output voltage of microwave signal, voltmeter believes the output voltage after operational amplifier amplifies with voltmeter
Number it is transmitted to control unit, while liter weighing tester is by weight signal real-time Transmission to control unit；
4) signal processing: collected voltage signal and weight signal are fitted operation by control unit, are obtained aqueous
The optimal value of rate.
5) detection terminates: when moisture content is optimal value, closing the power supply and liter weighing tester of microwave signal transmitting unit, stops
Only to the drying of material in material bin, detection terminates.
The advantages and benefits of the present invention are:
1, fruit and vegetable dryness powder moisture bimodulus rapid detection system of the invention, power supply is connected to microwave dielectric oscillator, micro-
Wave dielectric oscillator is connected to microwave signal amplifier, and microwave signal amplifier is connected to material bin；Microwave signal receiver one
End is connected to material bin, and the other end is connected to wave detector, and wave detector is connected to operational amplifier, and operational amplifier is connected to voltage
Table, voltmeter are connected to control unit, and liter weighing tester is installed in material bin bottom, and liter weighing tester is connected to control unit by data line,
Using microwave and bulk density bimodulus detection pattern, microwave voltage signal and weight signal are fitted operation by control unit, obtained
The optimal value of moisture content out improves water content detection precision, guarantees the long term storage of fruit vegetable powder.
2, fruit and vegetable dryness powder moisture bimodulus rapid detection system of the invention, microwave signal amplifier and microwave signal receive
Device is symmetrically arranged on material bin both ends, guarantees the precise delivery of microwave signal, improves the acquisition accuracy of microwave signal.
3, fruit and vegetable dryness powder moisture bimodulus rapid detection system of the invention, material bin is by clear perspex material system
At convenient for the metamorphosis of fruits and vegetables powder material is observed in detection process in real time.
4, fruit and vegetable dryness powder moisture bimodulus rapid detection method of the invention detects mould using the bimodulus of microwave and bulk density
Formula, easy to operate, state modulator is accurate, can guarantee water content detection precision.
5, the design of the invention is scientific and reasonable, detects bimodulus detection pattern using microwave detection and bulk density, improves water content detection
Precision, guarantee the long term storage and quality of fruit vegetable powder.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Below by specific embodiment, the invention will be further described, and it is not limit that following embodiment, which is descriptive,
Qualitatively, this does not limit the scope of protection of the present invention.
A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system, innovation are: emitting including microwave signal single
Member, material bin, microwave signal receiving unit, liter weighing tester and control unit, microwave signal transmitting unit include power supply, microwave-medium
Oscillator and microwave signal amplifier, power supply are connected to microwave dielectric oscillator, and microwave dielectric oscillator is connected to microwave signal
Amplifier, microwave signal amplifier are connected to material bin；Microwave signal receiving unit include microwave signal receiver, wave detector,
Operational amplifier and voltmeter, microwave signal receiver one end are connected to material bin, and the other end is connected to wave detector, and wave detector connects
It is connected to operational amplifier, operational amplifier is connected to voltmeter, and voltmeter is connected to control unit, and bulk density is installed in material bin bottom
Device, liter weighing tester are connected to control unit by data line, using microwave and bulk density bimodulus detection pattern, by control unit by microwave
Voltage signal and weight signal are fitted operation, obtain the optimal value of moisture content, improve water content detection precision, guarantee fruit vegetable powder
Long term storage.
Microwave signal amplifier and microwave signal receiver are symmetrically arranged on material bin both ends, guarantee the accurate of microwave signal
Transmission, improves the acquisition accuracy of microwave signal.
Material bin is made of clear perspex material, becomes convenient for observing the form of fruits and vegetables powder material in detection process in real time
Change.
A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection method, innovation are: the step of the detection method are as follows:
1) material pre-treatment: fruit vegetable materials are crushed with pulverizer, sift out the identical fruit of partial size with sieve after crushing
Vegetable powder；
2) fruit vegetable powder is added: the fruit vegetable powder sifted out being added in material bin, and carries out weight to fruit vegetable powder by liter weighing tester
Weighing, and weight signal is transmitted to control unit；
3) signal acquisition: opening the power supply of Microwave emission unit, generates microwave by dielectric oscillator and by microwave amplifier
It is transmitted to material bin, is received through the dry microwave across fruits and vegetables powder material by microwave signal receiver, and letter is carried out by wave detector
Number filtering, reads the output voltage of microwave signal, voltmeter believes the output voltage after operational amplifier amplifies with voltmeter
Number it is transmitted to control unit, while liter weighing tester is by weight signal real-time Transmission to control unit；
4) signal processing: collected voltage signal and weight signal are fitted operation by control unit, are obtained aqueous
The optimal value of rate.
5) detection terminates: when moisture content is optimal value, closing the power supply and liter weighing tester of microwave signal transmitting unit, stops
Only to the drying of material in material bin, detection terminates.
Although disclosing the embodiment of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be managed
Solution: do not departing from the present invention and spirit and scope of the appended claims in, various substitutions, changes and modifications be all it is possible,
Therefore, the scope of the present invention is not limited to the embodiment and attached drawing disclosure of that.
Claims (4)
1. a kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system, it is characterised in that: including microwave signal transmitting unit, material
Storehouse, microwave signal receiving unit, liter weighing tester and control unit, the microwave signal transmitting unit include power supply, microwave-medium vibration
Device and microwave signal amplifier are swung, the power supply is connected to the microwave dielectric oscillator, the microwave dielectric oscillator connection
To the microwave signal amplifier, the microwave signal amplifier is connected to the material bin；The microwave signal receiving unit
Including microwave signal receiver, wave detector, operational amplifier and voltmeter, microwave signal receiver one end is connected to described
Material bin, the other end are connected to the wave detector, and the wave detector is connected to the operational amplifier, and the operational amplifier connects
It is connected to the voltmeter, the voltmeter is connected to described control unit, and the liter weighing tester is installed in the material bin bottom, described
Liter weighing tester is connected to described control unit by data line.
2. fruit and vegetable dryness powder moisture bimodulus rapid detection system according to claim 1, it is characterised in that: the microwave letter
Number amplifier and the microwave signal receiver are symmetrically arranged on the material bin both ends.
3. fruit and vegetable dryness powder moisture bimodulus rapid detection system according to claim 1, it is characterised in that: the material bin
It is made of clear perspex material.
4. a kind of fruit and vegetable dryness powder moisture bimodulus rapid detection method, it is characterised in that: the step of the detection method are as follows:
1) material pre-treatment: fruit vegetable materials are crushed with pulverizer, sift out the identical fruit vegetable powder of partial size with sieve after crushing；
2) fruit vegetable powder is added: the fruit vegetable powder sifted out is added in material bin, and weight weighing is carried out to fruit vegetable powder by liter weighing tester,
And weight signal is transmitted to control unit；
3) signal acquisition: opening the power supply of Microwave emission unit, is generated microwave by dielectric oscillator and is transmitted by microwave amplifier
It to material bin, is received through the dry microwave across fruits and vegetables powder material by microwave signal receiver, and signal mistake is carried out by wave detector
Filter, reads the output voltage of microwave signal after operational amplifier amplifies with voltmeter, and voltmeter passes the output voltage signal
Transport to control unit, while liter weighing tester is by weight signal real-time Transmission to control unit；
4) signal processing: collected voltage signal and weight signal are fitted operation by control unit, obtain moisture content
Optimal value.
5) detection terminates: when moisture content is optimal value, closing the power supply and liter weighing tester of microwave signal transmitting unit, stopping pair
The drying of material, detection terminate in material bin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811504772.3A CN109540927A (en) | 2018-12-10 | 2018-12-10 | A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system and method |
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| CN201811504772.3A CN109540927A (en) | 2018-12-10 | 2018-12-10 | A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111406792A (en) * | 2020-04-21 | 2020-07-14 | 中国农业大学 | Method for drying fruits and vegetables by microwave enzyme deactivation and low-field nuclear magnetism |
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| CN2466643Y (en) * | 2000-04-27 | 2001-12-19 | 李丽宏 | Microwave grain moisture measurer |
| CN2470822Y (en) * | 2000-12-04 | 2002-01-09 | 崔凤忠 | Microwave quick-acting water-content measuring device |
| CN2844909Y (en) * | 2005-06-05 | 2006-12-06 | 李国文 | Grain moisture content fast detecting instrument |
| CN201083699Y (en) * | 2007-09-29 | 2008-07-09 | 李国文 | Online moisture detector |
| CN201637696U (en) * | 2010-02-11 | 2010-11-17 | 清华大学 | Device for measuring water content of materials by microwave combination weighing technology |
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| CN204439575U (en) * | 2015-01-26 | 2015-07-01 | 沈阳大学 | The on-line automatic measuring instrument of a kind of vegetables drying course water percentage |
| CN204789399U (en) * | 2015-07-21 | 2015-11-18 | 林新光 | Measuring device of moisture unit weight |
| CN205192978U (en) * | 2015-08-11 | 2016-04-27 | 江苏晨丰机电设备制造有限公司 | Powder food moisture on -line measuring device |
| CN205749342U (en) * | 2016-05-05 | 2016-11-30 | 安徽贝通智能科技有限公司 | A kind of online moisture content detection device of grain drying device |
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2018
- 2018-12-10 CN CN201811504772.3A patent/CN109540927A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2109571U (en) * | 1992-01-22 | 1992-07-08 | 煤炭科学研究总院北京煤化学研究所 | Microwave water measurer |
| CN2466643Y (en) * | 2000-04-27 | 2001-12-19 | 李丽宏 | Microwave grain moisture measurer |
| CN2470822Y (en) * | 2000-12-04 | 2002-01-09 | 崔凤忠 | Microwave quick-acting water-content measuring device |
| CN2844909Y (en) * | 2005-06-05 | 2006-12-06 | 李国文 | Grain moisture content fast detecting instrument |
| CN201083699Y (en) * | 2007-09-29 | 2008-07-09 | 李国文 | Online moisture detector |
| CN201637696U (en) * | 2010-02-11 | 2010-11-17 | 清华大学 | Device for measuring water content of materials by microwave combination weighing technology |
| CN204166340U (en) * | 2014-09-10 | 2015-02-18 | 湖北三江航天机电设备有限责任公司 | Pellet based on microwave moisture on-line checkingi dries control device |
| CN204439575U (en) * | 2015-01-26 | 2015-07-01 | 沈阳大学 | The on-line automatic measuring instrument of a kind of vegetables drying course water percentage |
| CN204789399U (en) * | 2015-07-21 | 2015-11-18 | 林新光 | Measuring device of moisture unit weight |
| CN205192978U (en) * | 2015-08-11 | 2016-04-27 | 江苏晨丰机电设备制造有限公司 | Powder food moisture on -line measuring device |
| CN205749342U (en) * | 2016-05-05 | 2016-11-30 | 安徽贝通智能科技有限公司 | A kind of online moisture content detection device of grain drying device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111406792A (en) * | 2020-04-21 | 2020-07-14 | 中国农业大学 | Method for drying fruits and vegetables by microwave enzyme deactivation and low-field nuclear magnetism |
| CN111406792B (en) * | 2020-04-21 | 2022-08-05 | 中国农业大学 | Method for drying fruits and vegetables by microwave enzyme deactivation and low-field nuclear magnetism |
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Application publication date: 20190329 |
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