CN103063813A - Rapid nondestructive on-line detection method and apparatus for freshness of fishes - Google Patents
Rapid nondestructive on-line detection method and apparatus for freshness of fishes Download PDFInfo
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- CN103063813A CN103063813A CN2012105737195A CN201210573719A CN103063813A CN 103063813 A CN103063813 A CN 103063813A CN 2012105737195 A CN2012105737195 A CN 2012105737195A CN 201210573719 A CN201210573719 A CN 201210573719A CN 103063813 A CN103063813 A CN 103063813A
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Abstract
The invention discloses a rapid nondestructive on-line detection method and apparatus for freshness of fishes. The inner cavity of a box is provided with a reaction chamber, a gas sensor array is arranged in the reaction chamber, a collection chamber is arranged below the reaction chamber and is fixed on a conveyor belt, and the front and the rear of the conveyor belt pass through the bottom of the inner cavity of the box; a to-be-detected fish sample is put into the collection chamber located at an initial position of the conveyor belt from above the conveyor belt, then the lid of the collection chamber is covered, a motor drives the conveyor belt to move, and the collection chamber collects gas while travelling forward; when the collection chamber travels to a position under the reaction chamber in the box, a cylinder drives the reaction chamber to move downwards so as to allow the reaction chamber and the collection chamber to be integrated into one body, and gas in the collection chamber carries smell of the fish sample, enters into the reaction chamber and reacts with the gas sensor array. According to the invention, the advantages of objective, nondestructive, real-time and on-line detection, easy and convenient operation, no need for professional operation staff and the like are obtained.
Description
Technical field
The present invention relates to a kind of detection method for the fish freshness and device, refer in particular to fish freshness quick nondestructive online test method and device based on gas sensor array.Belong to the detection of agricultural products instrument.
Background technology
Fish are rich in high protein because of its delicious meat, are of high nutritive value, owing to being rich in moisture and protein, the flesh of fish is very easily corrupt, and the rotten flesh of fish can affect its exterior quality even threaten consumer's safety, therefore, obtain the monitoring method of fish freshness fast and effectively very urgent.
At present existing a series of index and method evaluation fish freshness comprise hedonic scoring system, chemistry and microbial method and modern instrument method.The hedonic scoring system utilizes sense of smell, vision, sense of touch to distinguish the smell of the flesh of fish, color and luster, viscosity and Flexible change, thereby judges the quality of the flesh of fish.The method applied range can in time provide the freshness information of the flesh of fish, and be Non-Destructive Testing, but be subject to test and assess personnel's health and psychological impact, poor repeatability, the result lacks objectivity.Chemistry is based on the fish protein degree of decomposition principle different with content of microorganisms of different freshnesss with microbial method, total volatile basic nitrogen and total number of bacteria method etc. are arranged, this type of methods and results is reliable, repeatability is high, but need special operating personnel, operate consuming time loaded down with trivial detailsly, can not analyze sample fast.The modern instrument method mainly comprises gas chromatography and gas chromatography combined with mass spectrometry, and the result is objective accurately, but sample preprocessing is complicated, apparatus expensive, and detection time is long, does not equally also reach the requirement of fast detecting.
The patent No. 03131660.3, name are called in " based on food smell fast non-destructive detection method and the device of gas sensor array technology " disclosed device, sensor array is classified bar shaped as, in testing process, first sensor and last sensor are poor with the response life period of sample gas, be first sensor when having begun to react last sensor also do not contact with sample gas, and last sensor also in course of reaction the time first sensor response finished, the non_uniform response of sensor, information reliability is poor.
Application number is 200710036260.4, name is called in " a kind of small automatic machine sense of smell instrument and smell analytical approach " disclosed instrument, glass sample bottle and silicone rubber O-ring are disposable use, every measurement Master Cost once is high, and testing cost is very high; Sample needs heated at constant temperature 30 minutes before detection, heating has namely changed original component of sample, belongs to diminish detection, and does not reach the requirement of fast detecting the heat time heating time of 30min.
Summary of the invention
The objective of the invention is for overcoming in the above-mentioned prior art when fish freshness detected, choosing of sensor do not have specific aim, testing cost is high, detection speed is slow, poor reliability, can not reach the defective of optimum efficiency and propose a kind of quick nondestructive online test method and device based on gas sensor array, can carry out fast flesh of fish sample in enormous quantities, can't harm, real-time detection, thereby the quality that can assess accurate and effective, quickly sample is guaranteed quality.
The technical scheme that the quick nondestructive on-line measuring device of Estimation of The Fish Freshness of the present invention adopts is: casing is installed in the antinose-dive leg top, a reaction chamber is set in the inner chamber of casing, gas sensor array is arranged in the reaction chamber, reactor top connects cylinder, the reaction chamber below is collection chamber, collection chamber is fixed on the travelling belt, travelling belt supports with the travelling belt fixed mount, and the forward and backward intracavity bottom that runs in the guide casing of travelling belt, the left and right sides width of travelling belt and the left and right sides width of cabinets cavity are complementary, the collection chamber next door is provided with alignment sensor, and travelling belt connects motor; Described gas sensor array, cylinder, motor, alignment sensor connect respectively computing machine, and computing machine connects touch-screen.
The technical scheme that the quick nondestructive online test method of Estimation of The Fish Freshness of the present invention adopts is to have following steps: 1) fish sample to be detected is put into the collection chamber that is positioned at the travelling belt reference position by the travelling belt top, the collection chamber lid closes, by computer control driven by motor conveyer belt, collection chamber moves ahead with travelling belt, the gas collection while moving ahead; 2) when collection chamber be forwarded to casing internal reaction chamber under the time, alignment sensor detects the positional information of collection chamber, motor shuts down, travelling belt stops in this position, driving reaction chamber by cylinder moves downward, reaction chamber and collection chamber are integrated, and the gas in the collection chamber carries the breath of fish sample and enters in the reaction chamber, reacts with gas sensor array; The reaction signal of 3) computer acquisition, analysis and the described gas sensor array of processing is also delivered to the touch-screen demonstration, and after reaction finished, cylinder upwards lifts reaction chamber made reaction chamber separate with collection chamber, and pure air enters reaction chamber; 4) collection chamber continues to move ahead with travelling belt and arrives the final position and return reference position after the revolution downwards, carries out next fish pattern detection.
The invention has the beneficial effects as follows: the smell that the present invention can distribute based on the flesh of fish of different qualities is different, can detect analysis to different freshness fish samples, selecting targetedly according to the main volatile compounds of fish body in the freshness change procedure, gas sensor forms array, thereby adopt this array that sample is detected and judge freshness, improved the degree of accuracy that detects
Have objective, harmless, real-time online, easy and simple to handle, need not the advantages such as professional operating personnel, especially more aobvious its advantage when sample in enormous quantities is detected totally.
Description of drawings
Fig. 1 is the front view of the quick nondestructive on-line measuring device of Estimation of The Fish Freshness of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Among the figure: 1. reaction chamber; 2. constant temperature and humidity control assembly; 3. collection chamber; 4. travelling belt; 5. motor; 6. travelling belt fixed mount; 7. antinose-dive leg; 8. refrigeration machine; 9. collection chamber cleaning device; 10 computing machines; 11. casing; 12. touch-screen; 13 alignment sensors; 14. minipump; 15. cylinder.
Embodiment
The structure of the quick nondestructive on-line measuring device of Estimation of The Fish Freshness of the present invention as shown in Figure 1, 2, 3, casing 11 is fixedly mounted on the top of antinose-dive leg 7, and a reaction chamber 1 is set in casing 11 inner chambers, for example reaction chamber 1 can be arranged in the casing 11 left part inner chambers.Reaction chamber 1 top is the cylindrical hole shape, the cylindrical hole inner annular is placed a plurality of gas sensor array that detect the fish freshness that are specifically designed to, gas sensor array can be fixed on the inwall of cylindrical hole, sensor annular modes of emplacement can make sensor almost can contact with tested gas at one time, poor between having reduced, improve and detect effect.By gas chromatograph-mass spectrometer (GC-MS) to the detection of different freshness fish sample volatile matter and analysis result as can be known, main volatile compounds in the fish body decay process is alcohol, carbonyls (ester, aldehyde, ketone), hydrocarbon, nitrogenous and sulphur-containing substance, goes out corresponding gas sensor according to these screening substances and forms array.
Reaction chamber 1 middle part is the large conical bore shape of upper young end opening, and reaction chamber 1 bottom also is the cylindrical hole shape, and the bottom fixed installation grommet type seals in this lower cylindrical hole is to seal whole reaction chamber 1.Reaction chamber 1 top, middle part, bottom all are communicated with.
Reaction chamber 1 top is connected with cylinder 15, and cylinder 15 is fixedly mounted on casing 11 top boards top, controls moving up and down of reaction chamber 1.Minipump 14 is installed in casing 11 tops, is connected with reaction chamber 1, is used for the airflow circulating in the promotion reaction chamber 1.At casing 11 constant temperature and humidity control assembly 2 is installed, for example constant temperature and humidity control assembly 2 can be installed in the left side of casing 11, constant temperature and humidity control assembly 2 is used for regulating the humiture in the casing 11.Constant temperature and humidity control assembly 2 comprises temperature sensor, humidity sensor and fan etc., because metal oxide sensor is responsive to ambient temperature and humidity, the suitableeest use humiture is 20 ℃, 70%, when environment temperature is higher than setting value, fan is opened, until drop to setting value; Response signal and the humidity set point automatic regulating environmental humidity of humidification system according to humidity sensor dries.By maintenance stationary temperature humidity, thereby guarantee sensitivity and the stability that gas sensor array responds, make reliable results.
Be collection chamber 3 below reaction chamber 1, collection chamber 3 is cylindrical structural, is fixed on the travelling belt 4.Travelling belt 4 is supported on the travelling belt fixed mount 6.Travelling belt 4 forward and backward layouts, the left and right sides width of the left and right sides width of travelling belt 4 and casing 11 inner chambers is complementary, the travelling belt 4 forward and backward casing 11 left part intracavity bottoms that run in the guide.Set level sensor 13 on collection chamber 3 next doors, be used for the location of control collection chamber.Alignment sensor 13 can be fixed on casing 11 inwalls.
Travelling belt 4 connects motor 5, and the front and rear direction that is driven at reaction chamber 1 or casing 11 by motor 5 turns round.Motor 5 can be fixedly mounted on the bottom of travelling belt fixed mount 6, and travelling belt fixed mount 6 provides support for mounted motor 5, travelling belt 4 etc.
The present invention also has refrigeration machine 8, collection chamber cleaning device 9 and computing machine 10, refrigeration machine 8 is used for regulating casing 11 interior temperature, collection chamber cleaning device 9 is used for powerful flush clean collection chamber 3, and computing machine 10 connects respectively cylinder 15, motor 5, alignment sensor 13, minipump 14, touch-screen 12 and gas sensor array, constant temperature and humidity control assembly 2, refrigeration machine 8, collection chamber cleaning device 9; Computing machine 10 is used for collection, record and treatment samples notebook data information, transmits control signal etc.
Refrigeration machine 8, collection chamber cleaning device 9 can be installed in antinose-dive leg 7 bottoms, computing machine 10 can be installed in the cavity of casing 11 right parts sealing.Color touch screen 12 is installed on the casing 11 upper right quarter outside surfaces, is used for human-computer interaction, the orders such as all switching on and shutting down, time-out, operation all can realize by pressing touch-screen 12, also can be used for showing the test findings such as sensor response curve.
Because travelling belt 4 need to bear certain pressure at reaction chamber 1 when pressing down, and belt or thin chain delivery mechanism can cushion distortion when being under pressure, the airtight effect when reducing pattern detection.Therefore, travelling belt 4 design chaining slice structures of the present invention, the travelling belt of chain chip can bear certain pressure well, thereby guarantees the impermeability of testing process.The travelling speed of travelling belt 4 can be regulated as required within the specific limits.
The present inventionThe quick nondestructive on-line measuring device of Estimation of The Fish Freshness is put into collection chamber 3 with whole piece fish to be detected by travelling belt 4 tops when detecting, the lid of the collection chamber 3 that closes, and this moment, collection chamber 3 was positioned at travelling belt 4 reference positions.Computing machine 10 sends enabled instruction, starts by motor 5 to drive travelling belt 4 motions.Collection chamber 3 is with travelling belt 4 move ahead (for example, among Fig. 2, can move along direction from the bottom to top), the gas collection while moving, this process are to utilize the transport process gas collection, therefore, can shorten detection time, and suppress to a certain extent the gaseous contamination that fish body odor dispersion causes in the environment.When collection chamber 3 proceeded near casing 11 left part inner chamber, alignment sensor 13 detected the positional information of collection chamber 3, sent to computing machine 10 and interrupted application.Computing machine 10 sends pause command after receiving interrupt request, stops motor 5 running, and travelling belt 4 stops at assigned position.At this moment, collection chamber 3 be forwarded to casing internal reaction chambers 1 11 under.Reaction chamber 1 is moved downward by cylinder 15 controls, is integrated with collection chamber 3.Open minipump 14, can accelerate flowing of gas, promote sample gas and sensor to react, shorten the required time of single circulation, raise the efficiency.Gases in the collection chamber 3 carry the breath of fish sample and enter rapidly in the reaction chamber 1, react with gas sensor array in the reaction chamber 1.The response signal of gas sensor array is begun to gather, analyzes and is processed by computing machine 10, delivers to touch-screen 12 and shows.At this moment, reaction finishes, and reaction chamber 1 is lifted with collection chamber 3 by cylinder 15 and separates, and pure air enters reaction chamber 1, the reduction gas sensor array.3 of collection chambers continue to move ahead with travelling belt 4.Collection chamber 3 arrives antinose-dive leg 7 ends with travelling belt 4, and namely the final position is then turned round downwards, enters cleaning area.Cleaned by 9 pairs of collection chambers of collection chamber cleaning device 3, collection chamber 3 continues to turn round with travelling belt 4 while cleaning, and the reference position of getting back to travelling belt fixed mount 6 tops enters the testing process of next sample.
Claims (6)
1. the quick nondestructive on-line measuring device of an Estimation of The Fish Freshness, casing (11) is installed in antinose-dive leg (7) top, it is characterized in that: a reaction chamber (1) is set in the inner chamber of casing (11), reaction chamber has gas sensor array in (1), reaction chamber (1) top connects cylinder (15), reaction chamber (1) below is collection chamber (3), collection chamber (3) is fixed on the travelling belt (4), travelling belt (4) supports with travelling belt fixed mount (6), and travelling belt (4) is front, after run in the guide the intracavity bottom of casing (11), the left and right sides width of the left and right sides width of travelling belt (4) and casing (11) inner chamber is complementary, collection chamber (3) next door is provided with alignment sensor (13), and travelling belt (4) connects motor (5); Described gas sensor array, cylinder (15), motor (5), alignment sensor (13) connect respectively computing machine (10), and computing machine (10) connects touch-screen (12).
2. quick nondestructive on-line measuring device according to claim 1, it is characterized in that: casing (11) top is provided with minipump (14), and minipump (14) is connected with reaction chamber (1).
3. quick nondestructive on-line measuring device according to claim 1, it is characterized in that: antinose-dive leg (7) bottom is provided with refrigeration machine (8) and the collection chamber cleaning device (9) that connects respectively computing machine (10), sets firmly the constant temperature and humidity control assembly (2) that connects computing machine (10) on the casing (11).
4. quick nondestructive on-line measuring device according to claim 1, it is characterized in that: reaction chamber (1) top is the cylindrical hole shape, and the cylindrical hole inner annular is placed with a plurality of gas sensor array; Reaction chamber (1) middle part is communicated with top, is the large conical bore shape of upper young end opening; Reaction chamber (1) bottom is communicated with the middle part, is the cylindrical hole shape, and the bottom in this lower cylindrical hole is fixedly connected with grommet type seals.
5. the detection method of a quick nondestructive on-line measuring device as claimed in claim 1 is characterized in that having following steps:
1) fish sample to be detected is put into the collection chamber (3) that is positioned at travelling belt (4) reference position by travelling belt (4) top, collection chamber (3) lid closes, drive travelling belt (4) motion by computing machine (10) control motor (5), collection chamber (3) moves ahead with travelling belt (4), the gas collection while moving ahead;
2) when collection chamber (3) be forwarded to casing (11) internal reaction chamber (1) under the time, alignment sensor (13) detects the positional information of collection chamber (3), motor (5) shuts down, travelling belt (4) stops in this position, driving reaction chamber (1) by cylinder (15) moves downward, reaction chamber (1) and collection chamber (3) are integrated, and the gas in the collection chamber (3) carries the breath of fish sample and enters in the reaction chamber (1), reacts with gas sensor array;
3) computing machine (10) gathers, analyzes and process the reaction signal of described gas sensor array and deliver to touch-screen (12) and shows, after reaction finishes, cylinder (15) upwards lifts reaction chamber (1) makes reaction chamber (1) separate with collection chamber (3), and pure air enters reaction chamber (1);
4) collection chamber (3) continues to move ahead with travelling belt (4) and arrives the final position and return reference position after the revolution downwards, carries out next fish pattern detection.
6. detection method according to claim 1, it is characterized in that: in the step 4), collection chamber (3) is reached home after the revolution downwards of position, by collection chamber cleaning device (9) collection chamber (3) is cleaned, and collection chamber (3) continues while cleaning to turn round with travelling belt (4).
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| CN103245617A (en) * | 2013-05-17 | 2013-08-14 | 江苏大学 | Portable detection device for freshness of meat products |
| CN103412102A (en) * | 2013-08-01 | 2013-11-27 | 浙江工商大学 | Detection device and detection method for freshness of chicken breast |
| CN103412132A (en) * | 2013-08-01 | 2013-11-27 | 浙江工商大学 | Detection device and detection method for freshness of chicken thigh |
| CN103424560A (en) * | 2013-08-01 | 2013-12-04 | 浙江工商大学 | Device and method for detecting varieties of beef sauce seasoning liquid |
| CN103471952A (en) * | 2013-09-17 | 2013-12-25 | 中安高科检测科技（北京）有限公司 | Preparation method of gas sensor array for detecting Jinhua hams |
| CN103743662A (en) * | 2014-01-02 | 2014-04-23 | 浙江海洋学院 | Device for measuring freshness of fish |
| CN105181912A (en) * | 2015-06-30 | 2015-12-23 | 江苏大学 | Method for detection of freshness during rice storage |
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| CN105209890A (en) * | 2013-05-08 | 2015-12-30 | 鲜活检测有限责任公司 | Measuring device for measuring a surface coating on an object to be measured, particularly on a foodstuff |
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| CN103412102A (en) * | 2013-08-01 | 2013-11-27 | 浙江工商大学 | Detection device and detection method for freshness of chicken breast |
| CN103412132A (en) * | 2013-08-01 | 2013-11-27 | 浙江工商大学 | Detection device and detection method for freshness of chicken thigh |
| CN103424560A (en) * | 2013-08-01 | 2013-12-04 | 浙江工商大学 | Device and method for detecting varieties of beef sauce seasoning liquid |
| CN103424560B (en) * | 2013-08-01 | 2014-04-30 | 浙江工商大学 | Device and method for detecting varieties of beef sauce seasoning liquid |
| CN103471952A (en) * | 2013-09-17 | 2013-12-25 | 中安高科检测科技（北京）有限公司 | Preparation method of gas sensor array for detecting Jinhua hams |
| CN103743662A (en) * | 2014-01-02 | 2014-04-23 | 浙江海洋学院 | Device for measuring freshness of fish |
| CN103743662B (en) * | 2014-01-02 | 2016-03-30 | 浙江海洋学院 | A kind of fish freshness determination device |
| CN105181912A (en) * | 2015-06-30 | 2015-12-23 | 江苏大学 | Method for detection of freshness during rice storage |
| CN107347782A (en) * | 2016-05-10 | 2017-11-17 | 青岛海尔智能技术研发有限公司 | A kind of live body aquatic products storage and transportation case |
| CN107350172A (en) * | 2017-07-31 | 2017-11-17 | 中国农业科学院兰州畜牧与兽药研究所 | A kind of beef acid lipidic component monitors product control device |
| CN107350172B (en) * | 2017-07-31 | 2023-09-05 | 中国农业科学院兰州畜牧与兽药研究所 | Beef acid lipid component monitoring quality control device |
| CN107688042A (en) * | 2017-08-14 | 2018-02-13 | 中国水产科学研究院渔业机械仪器研究所 | A kind of scallop attributional analysis device based on metal oxide semiconductor sensor |
| CN107688042B (en) * | 2017-08-14 | 2019-09-24 | 中国水产科学研究院渔业机械仪器研究所 | A kind of scallop attributional analysis device based on metal oxide semiconductor sensor |
| CN107991396A (en) * | 2017-10-25 | 2018-05-04 | 江苏大学 | A kind of potato full-powder method for quick identification based on flavor analysis |
| CN107942015A (en) * | 2017-12-15 | 2018-04-20 | 山东商业职业技术学院 | A kind of aquatic products freshness non-destructive testing device and evaluation method |
| CN109724645A (en) * | 2019-01-07 | 2019-05-07 | 江苏大学 | A kind of portable electric nose system of real-time monitoring gold ear fermentation process state |
| CN109959765A (en) * | 2019-04-01 | 2019-07-02 | 中国农业大学 | Salmon freshness detection system and method |
| CN109959765B (en) * | 2019-04-01 | 2021-06-01 | 中国农业大学 | Salmon freshness detection system and salmon freshness detection method |
| CN111189987A (en) * | 2020-02-11 | 2020-05-22 | 山东省产品质量检验研究院 | Edible beef meat quality detection device |
| CN111189987B (en) * | 2020-02-11 | 2022-07-12 | 泰安金冠宏食品科技有限公司 | Edible beef meat quality detection device |
| CN113009087A (en) * | 2021-03-12 | 2021-06-22 | 中国农业大学 | Electronic nose detection system based on metal oxide gas sensor array |
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