CN106124631A - A kind of fragrant pear hardness sound shakes method the cannot-harm-detection device - Google Patents
A kind of fragrant pear hardness sound shakes method the cannot-harm-detection device Download PDFInfo
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- CN106124631A CN106124631A CN201610538109.XA CN201610538109A CN106124631A CN 106124631 A CN106124631 A CN 106124631A CN 201610538109 A CN201610538109 A CN 201610538109A CN 106124631 A CN106124631 A CN 106124631A
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- fragrant pear
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- pressure electricity
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- 235000014443 Pyrus communis Nutrition 0.000 title claims abstract description 72
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 43
- 230000005284 excitation Effects 0.000 claims abstract description 39
- 230000003750 conditioning effect Effects 0.000 claims abstract description 12
- 230000004044 response Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 4
- -1 Polyethylene Polymers 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000009659 non-destructive testing Methods 0.000 abstract description 2
- 241000220324 Pyrus Species 0.000 description 55
- 235000013399 edible fruits Nutrition 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 235000021017 pears Nutrition 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000105 evaporative light scattering detection Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002604 ultrasonography 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
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- 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)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to a kind of fragrant pear hardness sound shake method the cannot-harm-detection device, being shaken by fragrant pear sound and encourage sensing part, controller two parts to constitute, described fragrant pear sound shakes and encourages sensing part to include right support, sensing side pressure electricity beam sensor, excitation side pressure electricity beam sensor, cushion pad, bracing frame, medium-height trestle, ultrasonic distance-measuring sensor, roll adjustment spring, guide rod, left socle, base；Described controller is made up of DSP, high voltage amplifier circuit, signal conditioning circuit, LCD LCD MODULE and keyboard.The present invention uses sound to shake method, and its relation shaken between the velocity of sound and the fragrant pear hardness that signal propagates in fragrant pear by sound realizes fragrant pear inside quality Non-Destructive Testing, has the advantages such as accurate, portable, quick；The present invention is used to be advantageously implemented fragrant pear inside quality classification and improve fragrant pear commodity value, it is possible to effectively to reduce the phenomenon that on market, fragrant pear inside quality valency uneven, of fine quality is low.
Description
Technical field
The present invention relates to a kind of fragrant pear hardness sound shake method the cannot-harm-detection device.
Background technology
Fragrant pear is Xinjiang characteristic fruit, along with growing area expand, Stone cell content more rough bark fruit increase, inside quality
Difference becomes big；The inside quality of fragrant pear can pass through mouthfeel identification, but error is big；Hardness is to evaluate the important finger of fruit internal quality
One of mark, fruit hardness determination instrument in the market has durometer, Texture instrument, the lossless durometer of SA-1 type fruit, hardness
Meter and Texture instrument belong to destructive detection, are unfavorable for mass detection and on-line checking, and the lossless durometer of SA-1 type fruit detects
Precision is affected by noise greatly.The applying date: on July 30th, 2015, application number: 201510470721.3 " the lossless inspections of fragrant pear consolidation
Survey device " for fragrant pear hardness Non-Destructive Testing, but the method for this employing accelerometer detection fragrant pear hardness, perfume can be given during detection
Pears free vibration increase additional mass, and there is the problem of location difficulty, affect accuracy of detection, cause fragrant pear inside quality to detect
Precision is the highest.Therefore, a kind of fragrant pear hardness the cannot-harm-detection device portable, lossless, accurate of invention effectively measures fragrant pear hardness, full
Foot orchard worker, really business, consumer and the testing requirement of detection department, to realizing fragrant pear inside quality classification and improving fragrant pear commodity valency
It is worth significant.
Summary of the invention
It is an object of the invention to provide a kind of fragrant pear hardness sound to shake method the cannot-harm-detection device, in order to take, lossless, accurately sentence
The quality of disconnected fragrant pear inside quality, it is achieved fragrant pear inside quality classification and raising fragrant pear commodity value, effectively reduces market and goes to temple to pray
The phenomenon that pears inside quality valency uneven, of fine quality is low, solve in the market fruit hardness determination instrument destructiveness detection,
Big, fragrant pear consolidation the cannot-harm-detection device acceleration transducer affected by noise increases additional mass and fixed to fragrant pear free vibration
The problem of position difficulty.
It is an object of the invention to be achieved through the following technical solutions:
Its feature of the present invention is: detection device is shaken by fragrant pear sound and encourages sensing part, controller two parts to constitute, described perfume (or spice)
Pears sound shake excitation sensing part by right support, sensing side pressure electricity beam sensor, excitation side pressure electricity beam sensor, cushion pad,
Bracing frame, medium-height trestle, connecting plate, ultrasonic distance-measuring sensor, roll adjustment spring, guide rod, left socle and base composition；The described right side
Support is used to constant excitation side pressure electricity beam sensor, and is fixed on base, described excitation side pressure electricity beam sensor
Encouraging fragrant pear respectively with sensing side pressure electricity beam sensor and sense, described cushion pad is placed on bracing frame, fragrant pear
Being placed on cushion pad and free vibration, described bracing frame can be kept to be fixed on base, described medium-height trestle is used to fix
Sensing side pressure electricity beam sensor, it is fixed on base, and described connecting plate is used for connecting medium-height trestle and ultrasonic ranging
Sensor, described ultrasonic distance-measuring sensor is used to measure the distance between fragrant pear excitation end and sensing end, described tune
It is located on guide rod away from spring housing, for regulating the distance of medium-height trestle and right support, makes on medium-height trestle, to sense side pressure electricity beam type sensing
Device and excitation side pressure electricity beam sensor are in close contact with fragrant pear, it is ensured that the accuracy of fragrant pear sound vibration response signal, described leads
Bar one end is fixed on medium-height trestle by counterbore screw, and corresponding end is through left socle and stretches out left socle 10 mm, makes roll adjustment spring
During work, guide rod drives medium-height trestle to move horizontally, and described left socle is fixed on base, and when making guide rod move horizontally, direction is permanent
Fixed；Described controller passes with excitation side pressure electricity beam sensor, sensing side pressure electricity beam sensor and ultrasonic ranging respectively
Sensor is connected.
Described controller is by DSP, high voltage amplifier circuit, signal conditioning circuit, LCD LCD MODULE and keyboard group
Become；DSP sends sharp wave pulse excitation signal, is amplified pumping signal through high voltage amplifier circuit, and high voltage amplifier circuit is even
Connecing excitation side pressure electricity beam sensor fragrant pear carries out sound to shake excitation, then sensing side pressure electricity beam sensor senses the sound that shakes of speaking
Induction signal, carries out signal condition by signal conditioning circuit, and then DSP carries out data signal acquisition, gathers ultrasound simultaneously
Range data between excitation point and the sensing points that sensor is measured, is carried out after data process by LCD liquid finally by DSP
Brilliant display module display fragrant pear hardness parameter value.
Described high voltage amplifier circuit, including the internal LM124 amplifier chip containing four operation independent amplifiers as electricity
Pressure follower；The scaling circuitry being made up of resistance R92 and resistance R90；By resistance R91, electric capacity C94, resistance R93, electric capacity
C90, electric capacity C91 and LM124 amplifier constitute active second-order filter circuit；The mu balanced circuit that Zener diode is constituted.
Described signal conditioning circuit, including the internal LM124 chip containing four operation independent amplifiers as voltage
Follower；The scaling circuitry being made up of resistance R92 and resistance R90；By resistance R91, electric capacity C94, resistance R93, electric capacity
C90, electric capacity C91 and LM124 amplifier constitute active second-order filter circuit；The mu balanced circuit that Zener diode is constituted.
Compared with prior art, the present invention can portable, lossless, accurately judge that the quality of fragrant pear inside quality, effectively
Reduce the phenomenon that on market, fragrant pear inside quality valency uneven, of fine quality is low, solve fruit hardness detecting instrument in the market
Fragrant pear free vibration is increased by the detection of device destructiveness, big, fragrant pear consolidation the cannot-harm-detection device acceleration transducer affected by noise
The problem adding additional mass and location difficulty.
Accompanying drawing explanation
Fig. 1 is structure of the detecting device schematic diagram of the present invention；
Fig. 2 be sound of the present invention shake excitation sensing part three-dimensional structure diagram；
Fig. 3 be sound of the present invention shake excitation sensing part three-dimensional exploded view；
Fig. 4 is controller circuitry theory diagram of the present invention；
Fig. 5 is figure high voltage amplifier circuit figure of the present invention；
Fig. 6 is signal conditioning circuit circuit diagram of the present invention；
Fig. 7 is the workflow diagram that the present invention detects device；
In diagram: 1 be right support, 2 for excitation side pressure electricity beam sensor, 3 for sensing side pressure electricity beam sensor, 4 for buffering
Pad, 5 be bracing frame, 6 for medium-height trestle, 7 for connecting plate, 8 for ultrasonic distance-measuring sensor, 9 for roll adjustment spring, 10 be guide rod, 11
For left socle, 12 be base, 13 for fragrant pear, 14 controllers.
Detailed description of the invention
Embodiment: referring to the drawings 1,2,3, fragrant pear hardness sound method the cannot-harm-detection device of shaking includes 1 being right support, 2 is excitation
Side pressure electricity beam sensor, 3 for sensing side pressure electricity beam sensor, 4 be cushion pad, 5 for bracing frame, 6 for medium-height trestle, 7 for connect
Fishplate bar, 8 be ultrasonic distance-measuring sensor, 9 for roll adjustment spring, 10 for guide rod, 11 for left socle, 12 for base, 13 for fragrant pear, 14
For controller；Described right support 1 is used to constant excitation side pressure electricity beam sensor 2, and is fixed on base 12, described
Fragrant pear 13 is encouraged and senses by excitation side pressure electricity beam sensor 1 and sensing side pressure electricity beam sensor 3 respectively, described
Cushion pad 4 is placed on bracing frame 5, and fragrant pear 13 is placed on cushion pad 4 and can keep free vibration, and described bracing frame 5 is fixed on
On base 12, described medium-height trestle 6 is used to fixing sensing side pressure electricity beam sensor 3, and it is fixed on base 12, described
Connecting plate 7 be used for connecting medium-height trestle 6 and ultrasonic distance-measuring sensor 8, described ultrasonic distance-measuring sensor 8 be used to measure
Fragrant pear 13 encourages the distance between end and sensing end, and described roll adjustment spring 9 is sheathed on guide rod 10, is used for regulating medium-height trestle 6
With the distance of right support 2, make on medium-height trestle 6, to sense side pressure electricity beam sensor 3 and excitation side pressure electricity beam sensor 2 and fragrant pear
13 contacts are closely, it is ensured that the accuracy of fragrant pear 13 sound vibration response signal, described guide rod 10 one end is fixed on by counterbore screw
Medium-height trestle 6, corresponding end is through left socle 10 and stretches out 10 mm, and when making roll adjustment spring 9 work, guide rod 10 drives medium-height trestle 6 level
Mobile, described left socle 10 is fixed on base 12, and when making guide rod 10 move horizontally, direction is constant；Described controller 14 points
Not in being connected with excitation side pressure electricity beam sensor 2, sensing side pressure electricity beam sensor 3 and ultrasonic distance-measuring sensor 8.
Before Ce Shi, medium-height trestle 6 is pulled certain distance to the left, then fragrant pear 13 is placed on cushion pad 4, then medium-height trestle 6
Elastic force effect owing to being produced by roll adjustment spring 9 slowly moves right, until the sensing side pressure electricity beam type sensing on medium-height trestle 6
Device 3 touches fragrant pear 13.
The fragrant pear hardness sound of present invention method the cannot-harm-detection device operation principle of shaking is:
After fragrant pear 13 is placed on cushion pad 4, device is powered on, controller 14 sends sharp wave pulse excitation signal,
By excitation side pressure electricity beam sensor 2, fragrant pear 13 carries out sound to shake excitation, then sense by sensing side pressure electricity beam sensor 3
Speaking vibration response signal, the distance between ultrasonic distance-measuring sensor 8 is measured simultaneously sensing end and excitation end, finally by controlling
Device 14 collection sound vibration response data signal and range data, process through data and draw acoustic velocity value, and hard with fragrant pear according to the velocity of sound
The relational expression of degree draws fragrant pear hardness parameter value, and shows fragrant pear hardness parameter value.
As shown in Figure 4, described controller 14, including DSP, high voltage amplifier circuit, signal conditioning circuit, LCD liquid crystal
Show module and keyboard.DSP sends sharp wave pulse excitation signal and carries out data acquisition and processing (DAP), and pulse is swashed by high voltage amplifier circuit
Encouraging signal to amplify, the sound vibration response signal sensed is nursed one's health by signal conditioning circuit, LCD LCD MODULE display fragrant pear
Hardness parameter value.
The operation principle of controller: the operation button in keypad, DSP sends sharp wave pulse excitation signal, then by height
Pressure amplifying circuit carries out sharp wave pulse excitation signal amplification, and after excitation fragrant pear, the sound vibration response signal of generation is adjusted through signal
Reason circuit carries out signal condition, and then DSP carries out data acquisition process, is examined by LCD LCD MODULE display fragrant pear hardness
Survey result.
Such as Fig. 5, described high voltage amplifier circuit, including PA78DK high pressure amplifier chip and resistance capacitance peripheral circuit thereof；
RinAnd RmIt is used for determining amplification, electric capacity Cc1With resistance Rc1Constitute phase compensating network, electric capacity Cc2With resistance Rc2Constitute phase place
Compensate network, electric capacity CsAnd CxIt is provided to prevent unwanted oscillation, RciPlay metering function.
PA78DK in Fig. 5 is a kind of high pressure amplifier, has slew rate high, and idle current drain is low, it is possible to conveniently carry out
The advantages such as external phase compensation.
The operation principle of high voltage amplifier circuit: high voltage amplifier circuit includes PA78DK chip and capacitance resistance periphery electricity thereof
Road；PA78DK is a kind of high pressure amplifier, and sharp wave pulse excitation signal is through VkinInput carries out electricity through PA78DK high voltage amplifier circuit
Press big, through VkoutOutput.
Such as Fig. 6, described signal conditioning circuit, including the internal LM124 amplifier core containing four operation independent amplifiers
Sheet is as voltage follower；The scaling circuitry being made up of resistance R92 and resistance R90；By resistance R91, electric capacity C94, resistance
R93, electric capacity C90, electric capacity C91 and LM124 amplifier constitute active second-order filter circuit；The mu balanced circuit that Zener diode is constituted.
LM124 in Fig. 6 has supply voltage wide ranges, and quiescent dissipation is little, can use by single supply, cheap etc. excellent
Point.
Signal conditioning circuit principle: the response signal of telecommunication EXBIN1 produced by sensing end, through transformation of scale, reduces response
Magnitude of voltage, is filtered through active second-order filter circuit afterwards, is then passed through LM124 voltage follower, the most again through DT5
Zener diode carries out voltage stabilizing, it is ensured that export stable voltage AINB1.
Shown in Fig. 7, the workflow of detection device includes that DSP sends sharp wave pulse excitation signal, through high voltage amplifier circuit
Amplifying, by excitation side pressure electricity beam sensor excitation fragrant pear, sensing side pressure electricity beam sensor senses vibration response signal of speaking,
Nurse one's health through signal conditioning circuit, DSP gather, after DSP plug-in FFT, and must be spoken the signal that shakes by algorithm
In the propagation time, DSP gathers distance measuring sensor and records range data simultaneously, carries out data process through DSP and draws acoustic velocity value, and comments
Estimate and fragrant pear hardness, finally shown fragrant pear hardness parameter value by LCD LCD MODULE.
Controller in the present invention needs four groups of power supplies, is respectively-15V ,+5V ,+3.3V ,+50V, and above-mentioned power supply can
Switching power source chip and regulated power supply chip (such as models such as LM2596S, LM317) is used to be realized, in controller circuitry
Dsp chip can use TMS320F28335.
Claims (3)
1. a fragrant pear hardness sound shakes method the cannot-harm-detection device, it is characterised in that: shaken excitation sensing part, controller by fragrant pear sound
Two parts are constituted, and described fragrant pear sound shakes and encourages sensing part to include right support, sensing side pressure electricity beam sensor, excitation side pressure
Electricity beam sensor, cushion pad, bracing frame, medium-height trestle, connecting plate, ultrasonic distance-measuring sensor, roll adjustment spring, guide rod, a left side
Frame, base；Described right support is used to constant excitation side pressure electricity beam sensor and is fixed on base, described excitation side pressure
Fragrant pear is encouraged and senses by electricity beam sensor and sensing side pressure electricity beam sensor respectively, and described cushion pad is placed in and props up
On support, fragrant pear is placed on cushion pad and free vibration, described bracing frame can be kept to be fixed on base, described medium-height trestle
Being used to fixing sensing side pressure electricity beam sensor, be fixed on base by screw, described connecting plate props up in connecting
Frame and ultrasonic distance-measuring sensor, described ultrasonic distance-measuring sensor is used to measure between fragrant pear excitation end and sensing end
Distance, described roll adjustment spring housing is located on guide rod, for regulating the distance of medium-height trestle and right support, makes to sense on medium-height trestle end
Piezoelectricity beam sensor contacts closely with excitation side pressure electricity beam sensor with fragrant pear, it is ensured that fragrant pear sound vibration response signal accurate
Property, described guide rod is fixed on medium-height trestle by counterbore screw, and corresponding end is through left socle and stretches out left socle 10 mm,
When making roll adjustment spring works, guide rod drives medium-height trestle to move horizontally, and described left socle is fixed on base, makes guide rod level move
Time dynamic, direction is constant；Described controller respectively at excitation side pressure electricity beam sensor, sensing side pressure electricity beam sensor and
Ultrasonic distance-measuring sensor is connected.
A kind of fragrant pear hardness sound the most according to claim 1 shakes method the cannot-harm-detection device, it is characterised in that: cushion pad be by
Polyethylene material is made.
A kind of fragrant pear hardness sound the most according to claim 1 shakes method the cannot-harm-detection device, it is characterised in that: controller includes
DSP, signal conditioning circuit, high voltage amplifier circuit, LCD LCD MODULE and keyboard, dsp chip is TMS320F28335 core
Sheet, signal conditioning circuit uses LM124 chip to realize, and high voltage amplifier circuit uses PA78DK amplifier chip to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538109.XA CN106124631A (en) | 2016-07-09 | 2016-07-09 | A kind of fragrant pear hardness sound shakes method the cannot-harm-detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610538109.XA CN106124631A (en) | 2016-07-09 | 2016-07-09 | A kind of fragrant pear hardness sound shakes method the cannot-harm-detection device |
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| CN106124631A true CN106124631A (en) | 2016-11-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885847A (en) * | 2017-03-14 | 2017-06-23 | 石河子大学 | A kind of bergamot pear hardness sound and vibration nondestructive detection system and method based on piezoelectricity beam sensor |
| CN108776138A (en) * | 2018-07-16 | 2018-11-09 | 武汉理工大学 | One kind is accelerated the ripening fruit library fruit quality on-Line Monitor Device |
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| CN105424518A (en) * | 2015-07-30 | 2016-03-23 | 石河子大学 | Nondestructive testing device for firmness of bergamot pears |
| CN205749403U (en) * | 2016-07-09 | 2016-11-30 | 石河子大学 | A kind of fragrant pear hardness sound shakes method the cannot-harm-detection device |
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2016
- 2016-07-09 CN CN201610538109.XA patent/CN106124631A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424518A (en) * | 2015-07-30 | 2016-03-23 | 石河子大学 | Nondestructive testing device for firmness of bergamot pears |
| CN205749403U (en) * | 2016-07-09 | 2016-11-30 | 石河子大学 | A kind of fragrant pear hardness sound shakes method the cannot-harm-detection device |
Non-Patent Citations (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885847A (en) * | 2017-03-14 | 2017-06-23 | 石河子大学 | A kind of bergamot pear hardness sound and vibration nondestructive detection system and method based on piezoelectricity beam sensor |
| CN106885847B (en) * | 2017-03-14 | 2019-06-04 | 石河子大学 | A kind of bergamot pear hardness sound and vibration nondestructive detection system and method based on piezoelectricity beam sensor |
| CN108776138A (en) * | 2018-07-16 | 2018-11-09 | 武汉理工大学 | One kind is accelerated the ripening fruit library fruit quality on-Line Monitor Device |
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