CN109115883A - A kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment and its detection method - Google Patents
A kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment and its detection method Download PDFInfo
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- CN109115883A CN109115883A CN201811143667.1A CN201811143667A CN109115883A CN 109115883 A CN109115883 A CN 109115883A CN 201811143667 A CN201811143667 A CN 201811143667A CN 109115883 A CN109115883 A CN 109115883A
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- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 235000012055 fruits and vegetables Nutrition 0.000 title claims abstract description 29
- 230000001066 destructive effect Effects 0.000 title claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000002604 ultrasonography Methods 0.000 claims abstract description 23
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000009659 non-destructive testing Methods 0.000 description 4
- 235000011293 Brassica napus Nutrition 0.000 description 3
- 240000008100 Brassica rapa Species 0.000 description 3
- 235000000540 Brassica rapa subsp rapa Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013569 fruit product Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2698—Other discrete objects, e.g. bricks
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material 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 Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipments, when use, sample is placed on articles holding table and is adjusted to suitable height, ultrasonic probe is contacted with sample by automation transmission module mechanism, then Ultrasound Instrument is reached by ultrasonic probe acquisition through the ultrasonic curve of sample and by the ultrasonic signal that the ultrasonic curve is formed, ultrasonic signal is converted to the processor that digital signal and being sent to is built-in with the quantitative model of ultrasound information and standard physics and chemistry value by the Ultrasound Instrument, processor analysis is finally handled resulting result to export on a display screen, realize the quick detection of fruits and vegetables interior quality index.The invention also discloses a kind of fruits and vegetables lossless detection methods.
Description
Technical field
The present invention relates to fruits and vegetables technical field of nondestructive testing more particularly to fruits and vegetables non-destructive detecting device and its detection methods.
Background technique
With present improvement of living standard, the consciousness of modern's health gradually enhances, and people want fruit-vegetable quality
Ask also continuous raising.And the difficult point that classification is market is carried out to fruit-vegetable quality according to export standard.
Fruits and vegetables classification is the key link of postpartum processing (cleaning, waxing, classification, packaging), and the core of classification is fruit product
Quality detection, it includes that appearance and inside quality check two parts.Currently, fruits and vegetables external sort mainly passes through size, quality, color
Etc. indexs be classified and evaluation quality grade, and inside quality relies primarily on chemical method.Traditional chemical method is time-consuming, takes
Power, testing cost are high and use chemical reagent, cause the serious waste of resource, are unable to satisfy the rings such as fruits and vegetables production, circulation, control
Save the needs quickly detected.
To guarantee fruit-vegetable quality, international competitiveness is improved, fruit-vegetable quality Fast nondestructive evaluation technology is urgently developed with equipment.
Therefore how a kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment, low with cost of implementation, lossless rapid and convenient inspection are provided
It surveys, is current those skilled in the art technical problem urgently to be resolved
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of desk-top fruits and vegetables interior quality ultrasonic non-destructives to examine
Measurement equipment, to realize lossless rapid and convenient detection.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment, including casing, the glove being built in the casing
Platform, automation transmission module mechanism, ultrasonic probe mechanism, signal processing apparatus, wherein automation transmission module mechanism packet
Y-direction transmission device, X are included to support transmission device and electric precise slide unit, the X is driven to support transmission device and Y-direction support
Device is fixed on the inner wall of the casing, and the electric precise slide unit is fixed on sliding seat and mounting base, and is in 90 degree
Angle；The ultrasonic probe mechanism includes ultrasonic probe, probe collar member, bolt, inductor fixing piece, pressure responsive element
And spring；The signal processing apparatus includes the Ultrasound Instrument for receiving the ultrasonic signal that ultrasonic curve is formed, is built-in with ultrasound information
Display screen with the processor of the quantitative model of standard physics and chemistry value and for showing analysis and processing result.
3, preferred, the Y-direction transmission device includes the connecting rod of two parallel Y-axis, and respectively there are two same for two connecting rods
Belt wheel is walked, position is symmetrically and by the synchronous joint transmission of driving belt, wherein one end of the connecting rod near driving motor
Driving pulley is housed more, is coupled with the shaft of driving motor by the way that synchronous belt is synchronous.
Preferably, the X to support transmission device include three guide rods, guide rod fixing seat, two sliding seats and
One mounting base, the guide rod of three X-directions are installed in guide rod fixing seat and are distributed in 3 points of isosceles right triangle
On be fixed on casing inner wall, mounting base sliding be installed on lower section right angle electrical guide rod on, two sliding seats slide respectively
It is installed on two guide rods in top and is fixedly connected on feed belt.
Preferably, the electric precise slide unit includes linear guides, servo slide table, servo motor, synchronous belt and band
Wheel, driving pulley, which synchronizes, to be connected in the shaft of servo motor, and is fixed on linear guides together, and passive belt wheel is fixed on line
On the property guide rail other end and with synchronous belt and driving pulley synchronized links, servo slide table be slidably mounted on linear guides and with
Synchronous belt is fixedly connected.
Preferably, the ultrasonic probe mechanism is fixedly connected with servo slide table by polished rod, and ultrasonic probe sliding is worn
Dress is with probe collar member, and inductor fixing piece one end is bolted fixation by two with probe collar member, and the other end is fixed
Pressure responsive element and the center of pressure responsive element install a bolt make spring compression and release limitation direction,
Spring one end is fixedly connected on ultrasonic probe tail portion, and one end connects inductor fixing piece inner surface.
The present invention also provides a kind of fruits and vegetables interior quality supersonic damage-free detection methods, comprising:
Sample is placed on the articles holding table in built-in casing by step 1), and is adjusted to suitable height；Step 2) presses lower switch
Driving motor operating drives afterwards moves and in uniform 3 point of sample in 2 electric precise slide units of 90 degree of angles in X-direction
It sets and stops respectively, when driving motor pause, the servo motor actuator servo slide unit that starts running is moved and driven along linear guides
Ultrasonic probe mechanism, until ultrasonic probe contacts and pressure responsive element detects the timing of pressure value one, servo motor with sample
Pause, ultrasonic probe start transmitting and receive ultrasonic signal, and after a signal collection, servo motor backwards rotation makes ultrasonic wave
Probe leaves sample certain position, operates driving motor again, starts the detection of next position；Step 3) is visited by ultrasonic wave
Head acquisition penetrates the ultrasonic curve of sample and the ultrasonic signal that the ultrasonic curve is formed is reached Ultrasound Instrument, and the Ultrasound Instrument will
Ultrasonic signal is converted to digital signal and is sent to the processor for being built-in with the quantitative model of ultrasound information and standard physics and chemistry value；Step
The data detected three times are analyzed and processed and resulting result are output to display screen display by rapid 4) the described processor.
The beneficial effects of the present invention are:
Compared to existing technology, the present invention propose a kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment and its
Detection method is popped one's head in using the index of 54KHz, realizes quick fruits and vegetables interior quality, high-precision, intelligent, non-destructive testing.And make
Detection device has the characteristics that miniaturization, low cost, practical and low-power consumption.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is that the external structure of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment provided in an embodiment of the present invention is illustrated
Figure；
Fig. 2 is that the internal structure of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment provided in an embodiment of the present invention is illustrated
Figure；
Fig. 3 is the structural schematic diagram of automation transmission module mechanism provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of electric precise slide unit provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of ultrasonic probe mechanism provided in an embodiment of the present invention.
In figure 1 above -5:
Casing 1, the articles holding table 2 being built in the casing, sliding seat 3, mounting base 4, ultrasonic probe 5, probe lantern ring
It is part 6, bolt 7, inductor fixing piece 8, pressure responsive element 9, spring 10, connecting rod 11, driving pulley 12, driving motor 13, same
Walk belt 14, belt wheel 15, driving belt 16, guide rod 17, guide rod fixing seat 18, linear guides 19, servo slide table 20, servo
Motor 21, Ultrasound Instrument 22, processor 23, display screen 24, passive belt wheel 25, control panel 26.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1-Fig. 5 is please referred to, Fig. 1 desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment provided in an embodiment of the present invention
External structure schematic diagram；Fig. 2 is the inside of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment provided in an embodiment of the present invention
Structural schematic diagram；Fig. 3 is the structural schematic diagram of automation transmission module mechanism provided in an embodiment of the present invention；Fig. 4 is the present invention
The structural schematic diagram for the electric precise slide unit that embodiment provides；Fig. 5 is the knot of ultrasonic probe mechanism provided in an embodiment of the present invention
Structure schematic diagram.
Desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment provided in an embodiment of the present invention automates transmission module mechanism
Including Y-direction transmission device, X to support transmission device and electric precise slide unit, and two electric precise slide units pass through special standby gantry
The design method of connection be fixed on X to three guide rods 17 on formed stable structure isosceles right triangle and slided
It is dynamic, it is screwed on the self-clinching standoff of the inner wall of casing 1 in the X to support transmission device and Y-direction support transmission device,
Electric precise slide unit is fixed in sliding seat 3 and mounting base 4 using interpolation in equilateral right angled triangle；Signal processing apparatus
Including receiving the Ultrasound Instrument 22 for the ultrasonic signal that ultrasonic curve is formed, being built-in with the quantitative model of ultrasound information Yu standard physics and chemistry value
Processor 23 and display screen 24 for showing analysis and processing result, wherein Ultrasound Instrument 22 and processor 23 are fixed on casing 1
On the inner wall at the back side, fixed position will not contact and interfere with automatic detection mechanism；It is outer that control panel 26 is mounted on 1 front of casing
The surface of face placement detectable substance feed inlet；Including display screen 24, on & off switch, set key and heat release hole.
Above-mentioned Y-direction transmission device includes the connecting rod 11 of two parallel Y-axis, and respectively there are two synchronous belts for two connecting rods 11
Wheel 15 by synchronous belt 14 and drives more wherein filling a driving pulley 12 near 14 1 11 one end of connecting rod of driving motor
The synchronous connection of the shaft of dynamic motor 13 moves to two driving belts 16 of driving, in order to make two driving belts 16 reach accurate
Two connecting rods are selected in the movement stablized and synchronized, and are kept structure more firm, are driven more stable.
Above-mentioned X includes 18, two three guide rods 17, guide rod fixing seat sliding seats 3 and one to support transmission device
The guide rod 17 of a mounting base 4, three X-directions is installed in guide rod fixing seat 18 and is distributed in isosceles right triangle three
It on point, is fixed by screw and self-clinching standoff on 1 inner wall of casing, what mounting base 4 was slided is installed on the guide rod of lower section right angle electrical
On 17, two sliding seats 3 slide respectively to be installed on the guide rod 17 of upper end two, and respectively with two feed belt 16X to phase
It is fixedly connected with position.
Above-mentioned electric precise slide unit includes linear guides 19, servo slide table 20, servo motor 21, synchronous belt 14 and band
Wheel 15, driving pulley 12, which synchronizes, to be connected in the shaft of servo motor 21, and is fixed on linear guides 19 together, passive belt wheel
25 are fixed on 19 other end of linear guides and with synchronous belt 14 and 12 synchronized links of driving pulley, the sliding peace of servo slide table 20
It is fixedly connected on linear guides 19 and with synchronous belt 14, and interpolation is fixed on respectively at this electric precise slide unit both ends
On sliding seat 3 and mounting base 4, wherein close to servo motor 21 one end interpolation on sliding seat 3.
Above-mentioned ultrasonic probe mechanism is fixedly connected with servo slide table 20 by polished rod, and wherein servo slide table 20 connects polished rod
Plane it is parallel to the ground in the assembled condition, guarantee ultrasonic probe mechanism when connecting with polished rod, polished rod is in vertical direction；Ultrasound
Wave probe 5, which is installed in probe collar member 6, to pass through two with sliding mode, 8 one end of inductor fixing piece and probe collar member 6
The connection of bolt 7 is completely fixed, and the other end fixes a pressure responsive element 9；This pressure responsive element 9 incudes bridge opening at center
On install a bolt 7, and on bolt 7 intert a spring 10, make spring 10 compression and release limitation direction；Spring
10 one end are fixedly connected with 5 tail portion of ultrasonic probe, and one end is connected to 8 inner surface of inductor fixing piece.
Below by taking particular exam green turnip as an example, illustrate the working principle of the invention:
Tested green turnip is placed on 2 center of articles holding table in built-in casing, the knob by rotating articles holding table device is adjusted
The height of glove table top keeps the center in green turnip section consistent with the height of shell Warning Mark；Step 2) opens power supply,
Background program control automatic detection mechanism is set to be placed in initial, set position；Motor 13 is moved by lower switch rear-guard to start running, and is passed through
The transmission of synchronous belt 14 and feed belt 16, by two electric precise slide units X-direction move and the root of sample, in
Interval stops uniform 3 positions in portion and head respectively, and when driving motor 13 suspends, servo motor 21, which starts running, passes through synchronization
14 actuator servo slide unit 20 of belt makes it move through fixed polished rod along linear guides 19 and drives ultrasonic probe mechanism along identical
Direction movement passes through processing until one timing of pressure value that ultrasonic probe 5 is contacted with sample and pressure responsive element 8 detects
Device 22 receives the digital signal that pressure responsive element 8 is collected and issuing signal after program processing suspends servo motor 21, surpasses
Sonic probe 5 starts transmitting and carries out non-destructive testing with ultrasonic signal is received；Step 3) is by the acquisition of ultrasonic probe 5 through the super of sample
The ultrasonic signal that the ultrasonic curve is formed simultaneously is reached Ultrasound Instrument 22 by acoustic curve, and ultrasonic signal is converted to number by Ultrasound Instrument 22
The processor 23 that signal and being sent to is built-in with the quantitative model of ultrasound information and standard physics and chemistry value is analyzed and processed in record,
After a signal acquisition, driving 21 backwards rotation of servo motor stops after so that ultrasonic probe is left green trailing plants certain distance,
Then driving motor 6, which is again started up, makes two electric precise slide units be re-moved to next halt in X-direction, repeats above-mentioned
The movement of ultrasonic probe mechanism operates the ultrasonic signal data until being collected three positions that set up an office with detection；Step 4) institute
After having automatic detection operation to be fully completed, all mechanisms return to initial, set position, and simultaneous processor 23 will detect three times
Data are analyzed and processed and resulting result are output on display screen 24 and show.
Fruits and vegetables inside quality lossless detection method provided in an embodiment of the present invention can use the ultrasound information through sample
Fruits and vegetables interior quality is analyzed, the processor 23 of the quantitative model by establishing ultrasound information and standard physics and chemistry value reaches
To the purpose of non-destructive testing.It in detection process, is operated without supernumerary's work, and sample is not damaged, is a kind of rapid, high
Effect, convenient and fast detection method.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.It will be apparent to those skilled in the art that it can be made according to the above description of the technical scheme and ideas
Its various corresponding change and deformation, and all these changes and deformation all should belong to the guarantor of the claims in the present invention
Within the scope of shield.
Claims (6)
1. a kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment, it is characterised in that: including casing, be built in the casing
In articles holding table, automation transmission module mechanism, ultrasonic probe mechanism, signal processing apparatus, wherein
The automation transmission module mechanism includes Y-direction transmission device, X to support transmission device and electric precise slide unit, the X
It is fixed on the inner wall of the casing to support transmission device and Y-direction support transmission device, the electric precise slide unit is fixed
It on sliding seat and mounting base, and is in 90 degree of angles；
The ultrasonic probe mechanism includes ultrasonic probe, probe collar member, bolt, inductor fixing piece, pressure responsive element
And spring；
The signal processing apparatus includes the Ultrasound Instrument for receiving the ultrasonic signal that ultrasonic curve is formed, is built-in with ultrasound information and mark
The processor of the quantitative model of quasi- physics and chemistry value and display screen for showing analysis and processing result.
2. desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment according to claim 1, it is characterised in that: the Y
It include the connecting rod of two parallel Y-axis to transmission device, respectively there are two synchronous pulleys for two connecting rods, and position is symmetrical and passes through
Driving belt synchronizes joint transmission, wherein driving pulley is equipped near one end of the connecting rod of driving motor, with driving motor more
Shaft pass through the synchronous connection of synchronous belt.
3. desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment according to claim 1, it is characterised in that: the X
It include three guide rods, guide rod fixing seat, two sliding seats and a mounting base, three X-directions to support transmission device
Guide rod be installed in guide rod fixing seat and be distributed on 3 points of isosceles right triangle and be fixed on casing inner wall, install
Seat sliding is installed on the guide rod of lower section right angle electrical, and two sliding seats slide respectively to be installed on two guide rods in top simultaneously
It is fixedly connected on feed belt.
4. desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment according to claim 1, it is characterised in that: the essence
It includes linear guides, servo slide table, servo motor, synchronous belt and belt wheel that cipher telegram, which moves slide unit, and driving pulley is synchronized to be connected in and be watched
Take in the shaft of motor, and be fixed on linear guides together, passive belt wheel be fixed on the linear guides other end and with synchronize
Belt and driving pulley synchronized links, servo slide table are slidably mounted on linear guides and are fixedly connected with synchronous belt.
5. desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment according to claim 1, it is characterised in that: described is super
Sonic probe mechanism is fixedly connected with servo slide table by polished rod, and ultrasonic probe sliding is installed and popped one's head in collar member, inductor
Fixing piece one end and probe collar member are bolted fixation by two, other end fixation pressure sensing element and in pressure sensitive
The center of element, which installs a bolt, makes the compression of spring and release limitation direction, spring one end be fixedly connected on ultrasonic wave
Probe tail portion, one end connect inductor fixing piece inner surface.
6. a kind of fruits and vegetables interior quality supersonic damage-free detection method, it is characterised in that: include:
Sample is placed on the articles holding table in built-in casing by step 1), and is adjusted to suitable height；
Step 2) is moved motor operating drive by lower switch rear-guard and is moved in 2 electric precise slide units of 90 degree of angles in X-direction
And stop respectively in uniform 3 positions of sample, when driving motor pause, servo motor starts running actuator servo slide unit edge
Linear guides are mobile simultaneously to drive ultrasonic probe mechanism, until ultrasonic probe contacts and pressure responsive element detects pressure with sample
One timing of value, servo motor pause, ultrasonic probe starts transmitting and receives ultrasonic signal, after a signal collection, servo electricity
Machine backwards rotation makes ultrasonic probe leave sample certain position, operates driving motor again, starts the detection of next position；
The ultrasonic signal that step 3) is penetrated the ultrasonic curve of sample and formed the ultrasonic curve by ultrasonic probe acquisition
Ultrasound Instrument is reached, ultrasonic signal is converted to digital signal and be sent to by the Ultrasound Instrument is built-in with ultrasound information and standard physics and chemistry
The processor of the quantitative model of value；
The data detected three times are analyzed and processed and resulting result are output on display screen by the step 4) processor
Display.
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| CN201811143667.1A CN109115883A (en) | 2018-09-28 | 2018-09-28 | A kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment and its detection method |
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| CN201811143667.1A CN109115883A (en) | 2018-09-28 | 2018-09-28 | A kind of desk-top fruits and vegetables interior quality ultrasonic non destructive detection equipment and its detection method |
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| CN114235961A (en) * | 2021-11-03 | 2022-03-25 | 西安工程大学 | Ultrasonic nondestructive rapid detection equipment and method for apple mold heart disease based on machine learning |
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Application publication date: 20190101 |