CN2903977Y - Portable fast tester for fruit drops acidity - Google Patents
Portable fast tester for fruit drops acidity Download PDFInfo
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- CN2903977Y CN2903977Y CN 200620096561 CN200620096561U CN2903977Y CN 2903977 Y CN2903977 Y CN 2903977Y CN 200620096561 CN200620096561 CN 200620096561 CN 200620096561 U CN200620096561 U CN 200620096561U CN 2903977 Y CN2903977 Y CN 2903977Y
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Abstract
The utility model relates to a portable fruit sugar acidity fast detection instrument, which comprises a light intensity controller, a light source, a CCTV reflection condenser lens, an optical grating monochromator, an optical signal collector, an optical signal data processing system and a display, wherein, the light intensity controller is connected with the light sources which are positioned symmetrically at the two side of the reflection light path in between the CCTV reflection condenser and the fruit; the optical grating monochromator and the optical signal collector are distributed in order along the light path in between the CCTV reflection condenser lens that opposite to the fruit and the optical signal data processing system; the optical signal collector is connected with the optical signal data processing system circuit; the optical signal data processing system is connected with the display circuit. The near-infrared absorption characteristics of the fruit are enhanced with the increasing of the nutrient compositions of the fruit. The acquired near-infrared absorption spectrum information is calculated and analyzed in the optical signal processing system to get the results about the sugar acidity of the fruit which can be rapidly shown on the digital display.
Description
Technical field
The utility model relates to a kind of acidity of fruit confection detector, especially a kind of portable fruit sugar and acid degree fast detecting instrument.
Background technology
At present, the detection method of acidity of fruit confection is a lot, modal anthrone colorimetric estimation method, by the fruit sample is ground, smashs to pieces processing, extracting fruit juice measures, this obviously is a kind of detection method that diminishes, this quadrat method not only sample preparation loaded down with trivial details, waste time and energy, and detect the cost height, efficient is low.In order to obtain a kind of method of quick, easy fast detecting acidity of fruit confection, Chinese scholars had once been carried out some correlative studys:
High performance liquid chromatography: by high performance liquid chromatograph the fruit juice sample is analyzed, need be spent the plenty of time to do the sample with complex pre-treatment before analyzing, the method complicated operation, the instrument costliness of use detects the cost height, and detection time is long.
Refractometry: use hand-held sugar and acid degree meter, the refractive index ratio of using fruit juice detects in the principle of concentration, though this method is easy, also be a kind of detection that diminishes, and its accuracy of detection is lower.
The visible light determination method: utilize the laboratory spectrometer with radiation of visible light at fruit surface, and accept a kind of method of the transmitted ray after interior tissue absorbs in the irradiated site opposite.Though this method is to decrease fast to detect, because the spectral information that gets access to is low, causes effective withdrawing spectral information difficulty, influences its accuracy of detection.
Near infrared light determination method: utilize the laboratory spectrometer that near infrared light is radiated at fruit surface, by mensuration a kind of method by the fruit surface reflection ray after internal divergence.The method is carried out spectrum differential, pre-service such as level and smooth earlier, sets up mathematical model in conjunction with chemometrics method, and uses the model of being set up to predict the sugar and acid degree of detected fruit.But the method is based on the laboratory spectral instrument, and cost is higher and do not have portable and the operation simplification.
Summary of the invention
The purpose of this utility model is to provide portable fruit sugar and acid degree fast detecting instrument.
The technical solution of the utility model is:
A kind of portable fruit sugar and acid degree fast detecting instrument is made up of light intensity controller, light source, CCTV reflecting condensation camera lens, grating monochromator, optical signal acquisition device, optical signal data disposal system and display; Wherein: the light intensity controller is connected with light source, the both sides of the light path reflection circuit between fruit and CCTV reflecting condensation camera lens of light source symmetry; On the CCTV reflecting condensation camera lens of fruit and the light path between the optical signal data disposal system, be distributed with grating monochromator, optical signal acquisition device successively; Optical signal acquisition device is connected with optical signal data disposal system circuit; The optical signal data disposal system is connected with display circuit.
The portable fruit sugar and acid degree fast detecting instrument that the utility model provides, light intensity control is used to control the luminous intensity of light source, by the diffuse reflection near infrared spectrum that collects fruit in the 400nm-1100nm wavelength band, calculate and demonstrate the sugar and acid degree size of fruit according to fruit absorbance size, thereby realize that quantification easy, fruit internal saccharic acid content fast shows.
The light direct irradiation fruit surface that light source penetrates, absorb light that back reflection comes out through interior tissue and behind CCTV reflecting condensation camera lens, gone into optical signal acquisition device by the grating monochromator beam split is laggard, optical signal acquisition device can be a hyperchannel CCD silicon detecting device, for example information is passed to data acquisition system (DAS) in the optical signal data disposal system by the R232 communication interface, through delivering to microprocessor after amplifier, filtering and the A/D conversion, microprocessor control is total to the sugar and acid degree value size that positive static display circuit shows output fruit with 3 LED.
Loaded forecast model program in the microprocessor, the fast quantification that can carry out acidity of fruit confection to the fruit original spectrum after gathering shows output.Microprocessor is total to positive static display circuit with 3 LED and links to each other, and the result of measurement just can be total to positive static display circuit by 3 LED and light the height that number is represented sugar and acid degree content respectively.
The beneficial effects of the utility model are: in the maturation of fruit, become big along with the increase of acidity of fruit confection, fruit also can change the absorption feature of near infrared light thereupon, theoretical foundation of the present utility model that Here it is.In the 350nm-1100nm near infrared wavelength region, obtain the near-infrared absorption spectrum information of fruit, by microprocessor with the mathematical modeling program carry out computational analysis, determine the sugar and acid degree of fruit according to fruit absorbance size.
Description of drawings
Fig. 1 is a portable fruit sugar and acid degree fast detecting instrument easy structure synoptic diagram of the present utility model.
Fig. 2 is the structural representation of portable fruit sugar and acid degree fast detecting instrument circuit part of the present utility model.
Embodiment
A kind of portable fruit sugar and acid degree fast detecting instrument is made up of light intensity controller 7, light source 1, CCTV reflecting condensation camera lens 2, grating monochromator 3, optical signal acquisition device 4, optical signal data disposal system 5 and display 6; Wherein: light intensity controller 7 is connected with light source 1, the both sides of the light path reflection circuit between fruit and CCTV reflecting condensation camera lens 2 of light source 1 symmetry; On the CCTV reflecting condensation camera lens 2 of fruit and the light path between the optical signal data disposal system 5, be distributed with grating monochromator 3, optical signal acquisition device 4 successively; Optical signal acquisition device 4 is connected with optical signal data disposal system 5 circuit; Optical signal data disposal system 5 is connected with display 6 circuit.
A kind of portable fruit sugar and acid degree fast detecting instrument, wherein: between optical signal acquisition device 4 and the optical signal data disposal system 5; Optical signal data disposal system 5 is connected as follows with circuit between the display: address latch DZSC output terminals A 7 is by two rejection gates, and and WR, the RD of 89S51 be connected the input port of two rejection gates jointly, the output port at two rejection gates links to each other with CE, the R/C of AD574 respectively then; The P3.2 port of 89S51 directly links to each other with the 28 pin STS of AD574; 15 pin of AD574 are DGND digitally, and 9 pin of AD574 are simulation ground AGND; 7 pin of AD574 connect the VCC power supply just+15V end, 11 pin VEE connect power--15V end; The light signal that optical signal acquisition device (4) is gathered is by 0～10V of two-way analog input end 13 pin of AD574,0～20V end input of 14 pin, the ALE port of 89S51 links to each other with address latch DZSC, and address latch DZSC output terminals A 0, A1 link to each other with 4 pin A0, the 3 pin CS of AD574; The also external AD574 of the P0.0-P0.7 of 89S51,8 position digital signals that are specially AD574 are through DB4-DB11, and the DB0-DB3 port outputs to the input port of P0.0～P0.7 of 89C51; S1 links to each other with the RST end of 89S51 by resistance R 2; The RXD port of 89S51 is connected with the input port of shift register 74LS164, and the P1.4 of 89S51, the port of TXD are connected with the control port CK of three 74LS164 with door output through one; The output port of 74LS164 is connected with led module; The right-hand member of button S2, S3, S4 links to each other with P3.2, P1.7, the P1.6 port of 89S51 respectively; The output port of the P1.0 of 89S51 is connected with load FZ2 by ZLJDQJK; The output port of P1.1 is connected with load FZ1 by JLJDQJK; The P1.2 of 89S51, P1.3 output port are connected with LED2 (R), LED3 (Y) respectively by two phase inverters; The P3.2 of 89S51 is connected with LED1 by resistance, and LED1 is connected with Vcc, and P1.7, P1.6 also are connected with Vcc by resistance respectively.
All the other are with embodiment 1.
A kind of portable fruit sugar and acid degree fast detecting instrument, wherein: between optical signal acquisition device 4 and the optical signal data disposal system 5; Optical signal data disposal system 5 is connected as follows with circuit between the display: address latch DZSC output terminals A 7 is by two rejection gates, and and WR, the RD of 89S51 be connected the input port of two rejection gates jointly, the output port at two rejection gates links to each other with CE, the R/C of AD574 respectively then; Whether the P3.2 port of 89S51 directly links to each other with the 28 pin STS of AD574 for the single-chip microcomputer visit, finish to judge the A/D conversion; 15 pin of AD574 are DGND digitally, and 9 pin of AD574 are simulation ground AGND; 7 pin of AD574 connect the VCC power supply just+15V end, 11 pin VEE connect power--15V end.
The light signal that optical signal acquisition device (4) is gathered is by 0～10V of two-way analog input end 13 pin of AD574,0～20V end input of 14 pin, exports after by rejection gate from the signal of WR, RD, and enters into CE, the R/C of AD574; The STS port that the signal of the P3.2 that 89S51 comes enters into AD574 is controlled mould/number conversion of AD574; The ALE port of 89S51 links to each other with address latch DZSC, and address latch DZSC output terminals A 0, A1 link to each other with 4 pin A0, the 3 pin CS of AD574; The 4 pin A0 that export to AD574, the 3 pin CS of A0, A1 link to each other, and realizing complete 12 conversions of A/D, and 12 bit data are divided send into data bus 2 times; The also external AD574 of the P0.0-P0.7 of 89S51,8 position digital signals that are specially AD574 are through DB4-DB11, and the DB0-DB3 port outputs to the input port of P0.0～P0.7 of 89C51; Programmed instruction through the inner ROM of 89C51 makes it to realize semaphore lock, demonstration.
89S51 also gives an order by P0.0～P0.7 mouth, and through address latch DZSC output terminals A 7 again by two rejection gates, and and the WR of 89S51, RD acting in conjunction at the input port of two rejection gates, the output port at two rejection gates links to each other with CE, the R/C of AD574 respectively then.Whether the P3.2 port of 89S51 directly links to each other with the 28 pin STS of AD574 for the single-chip microcomputer visit, finish to judge the A/D conversion.When arriving as optical tests signal when a certain road fruit, the a certain corresponding port input of analog input end 0-10V, the 020V input by AD574, by P3.2, WR, RD, RXD, the TXD output of 89S51, connect the fine or not result that led module shows fruit quality then through 3.
S1 links to each other with the RST end of 89S51 by resistance R 2; The RXD port of 89S51 is connected with the input port of shift register 74LS164, and the P1.4 of 89S51, the port of TXD are connected with the control port CK of three 74LS164 with door output through one; The output port of 74LS164 is connected with led module, and shows the optical tests result of fruit by nixie display.
In the optical tests preparatory stage of fruit, the operator is by reset key S1, and S1 links to each other with the RST end of 89S51 by resistance R 2, and digital display is " 0 " attitude; After the optical tests of fruit begins, when the optical tests signal of arbitrary road fruit arrives, when simulating signal is input to the 0-20V input of the 0-10V of 13 pin of AD574 or 14 pin, then by the input port that outputs to shift register 74LS164 after the internal conversion of 89S51 again by the RXD port of 89S51, and through shift register 74LS164, and the control port CK of three 74LS164 is exported and affacted to the port output of P1.4, the TXD of 89S51 through one with door simultaneously; The output port of 74LS164 is connected with led module, and shows the optical tests result of fruit by nixie display.
The right-hand member of button S2, S3, S4 links to each other with P3.2, P1.7, the P1.6 port of 89S51 respectively; The output port of the P1.0 of 89S51 is connected with load FZ2 by ZLJDQJK; The output port of P1.1 is connected with load FZ1 by JLJDQJK; The P1.2 of 89S51, P1.3 output port are connected with LED2 (R), LED3 (Y) respectively by two phase inverters; The P3.2 of 89S51 is connected with LED1 by resistance, and LED1 is connected with Vcc, and P1.7, P1.6 also are connected with Vcc by resistance respectively.
Button S1 makes system play reset response; Button S2 has been the function conversion, and LED1 was bright when S2 pressed, and shows the size of full numerical value, unclamps the size that S2 shows current tested numerical value; Button S3 is 1 key that adds of setting full numerical values recited, and button S4 is 1 key that subtracts of setting full numerical values recited.The right-hand member of button S2, S3, S4 links to each other with P3.2, P1.7, the P1.6 port of 89S51 respectively.The P1.0 of 89S51, P1.1 are for driving the output port signal of load, and the output port of P1.0 connects the input of ZLJDQJK, drive load FZ2 again after ZLJDQJK amplifies.The output port of P1.1 connects the input of JLJDQJK, drives load FZ1 again after JLJDQJK amplifies.The P1.2 of 89S51, P1.3 output port are by two phase inverters difference driving LED 2 (R), LED3 (Y).The luminous combination of LED2 (R), LED3 (Y) directly indicates the fruit of special trait, and by driving mechanism it is separated.
When the P0.0-P0.7 among Fig. 4 uses as delivery outlet, notice that the data 1 on its internal bus write D-latch, when P0.0-P0.7 uses as the input port, note distinguishing " reading pin " and " read port ", read port be meant on the internal bus D-latch port Q and/Q, so P0.0-P0.7 is two-way 8 ternary I/O mouths, is least-significant byte address bus and data bus time-sharing multiplex mouth, can drive 8 LS type TTL load.The ALE of 89S51 is the output connectivity port, and its function is that address latch allows, and when not visiting the outer lock storage, the frequency of ALE is 1/6 of FOSC.RST is the input connectivity port, and its function provides reset signal for 89C51.When P1.0-P1.7 used as delivery outlet, it need not connect on external circuit and draw resistance, and is inner existing because of it, when P1.0-P1.7 uses as the input port, notice that the data 1 on its internal bus write D-latch.RXD is the serial input port; TXD is the serial delivery outlet.
WR, be external data memory write gate delivery outlet; RD, be external data memory read gate delivery outlet.
AD574 is 28 pin, and its function is: chip selection signal end CS.Sheet enabling signal end CE.Read/changeover control signal end R/C.Data output format is selected signal end 12/8, and when 12/8=1,12 data lines are exported transformation result simultaneously, when 12/8=0, has only most-significant byte or hangs down 4 effectively.Byte is selected control signal end A0, and in the transition period, if A0=0, AD574 carries out complete 12 conversions, if A0=1, AD574 carries out 8 conversions, and between reading duration, if A0=0, the most-significant byte data are effective, if A0=1, low 4 bit data are effective.Output status signal end STS.Owing in the AD574 sheet clock is arranged, so need not to add clock signal.Adopt the unipolarity input mode to circuit, can change 13 pin 0-10V or the next simulating signal of 14 pin 0-20V.The most-significant byte of transformation result hangs down 4 from 19 pin～16 pin (LSB) DB3-DB0 output, and directly links to each other with the data bus of 89S51P0.0～P0.7 from 27 pin (MSB)～20 pin DB11-BD4 output.
All the other are with embodiment 1.
A kind of portable fruit sugar and acid degree fast detecting instrument, wherein: display 6 adopts the LED nixie display.All the other are with embodiment 1.
Claims (1)
1, a kind of portable fruit sugar and acid degree fast detecting instrument is made up of light intensity controller (7), light source (1), CCTV reflecting condensation camera lens (2), grating monochromator (3), optical signal acquisition device (4), optical signal data disposal system (5) and display (6); It is characterized in that: light intensity controller (7) is connected with light source (1), the both sides that are positioned at the light path reflection circuit between fruit and the CCTV reflecting condensation camera lens (2) of light source (1) symmetry; On the CCTV reflecting condensation camera lens (2) of fruit and the light path between the optical signal data disposal system (5), be distributed with grating monochromator (3), optical signal acquisition device (4) successively; Optical signal acquisition device (4) is connected with optical signal data disposal system (5) circuit; Optical signal data disposal system (5) is connected with display (6) circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096561 CN2903977Y (en) | 2006-05-09 | 2006-05-09 | Portable fast tester for fruit drops acidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096561 CN2903977Y (en) | 2006-05-09 | 2006-05-09 | Portable fast tester for fruit drops acidity |
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| Publication Number | Publication Date |
|---|---|
| CN2903977Y true CN2903977Y (en) | 2007-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620096561 Expired - Fee Related CN2903977Y (en) | 2006-05-09 | 2006-05-09 | Portable fast tester for fruit drops acidity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808689A (en) * | 2014-02-21 | 2014-05-21 | 山东省农业科学院农业质量标准与检测技术研究所 | Five-point near infrared fruit maturity and quality detector |
-
2006
- 2006-05-09 CN CN 200620096561 patent/CN2903977Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808689A (en) * | 2014-02-21 | 2014-05-21 | 山东省农业科学院农业质量标准与检测技术研究所 | Five-point near infrared fruit maturity and quality detector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 |