CN107688042B - A kind of scallop attributional analysis device based on metal oxide semiconductor sensor - Google Patents
A kind of scallop attributional analysis device based on metal oxide semiconductor sensor Download PDFInfo
- Publication number
- CN107688042B CN107688042B CN201710691661.7A CN201710691661A CN107688042B CN 107688042 B CN107688042 B CN 107688042B CN 201710691661 A CN201710691661 A CN 201710691661A CN 107688042 B CN107688042 B CN 107688042B
- Authority
- CN
- China
- Prior art keywords
- solenoid valves
- sample room
- sample
- gas
- heating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
Abstract
The present invention relates to a kind of scallop attributional analysis device based on metal oxide semiconductor sensor, including sample room, test cabinet, vacuum pump；Vacuum pump is connected to by No. three solenoid valves with sample room, while being connected to by No. four solenoid valves with test cabinet；It further include compressed air bottle, compressed air bottle is connect by No. six solenoid valves with sample room, while being connect by No. seven solenoid valves with test cabinet；No. six solenoid valves are also connected with each other with No. seven solenoid valves；Sample room is connect by check valve and No. five solenoid valves with test cabinet；It further include control system, respectively electric signal is connect control system with each solenoid valve, each circulation air pump, each temperature, pressure sensor and electric cylinder, vacuum pump, compressed air bottle.The present invention carries out gas collecting by sample room, carries out scallop attributional analysis by test cabinet, temperature and pressure control accuracy is very high, and test result is accurate；Comprehensive utilization ratio between each component is higher, and structure is simple, volume compact, and cost is relatively low.
Description
Technical field
The present invention relates to a kind of scallop attributional analysis devices, are a kind of based on metal-oxide semiconductor (MOS) biography specifically
The scallop attributional analysis device of sensor, belongs to scallop quality analyzing technique field.
Background technique
Existing scallop attributional analysis is generally evaluated according to parameters such as smell, physical and chemical indexes, and smell is manually sentenced
Not often with subjective colo(u)r, and physical and chemical index differentiation is often cumbersome and complicated by complicated instrument and equipment.Existing electricity
Sub- nose equipment already has the advantages that quick, sensitive, but its equipment is expensive, and the technical requirements of maintenance and operation are high, this is all
The assessment technique is restricted to apply in practice, this requires a kind of simple, reliably, cheap and easy to carry portable product
Matter valuator device adapts to the demand of industry.
Summary of the invention
The technical problem to be solved in the invention is:
Poor for selectivity of the single sensor for mixed gas, the present invention uses the metal oxygen of 12 performance crossovers
Compound semiconductor gas sensor array can accurately distinguish the different odor feature of scallop release.Innovative exploitation is based on
Metal oxide semiconductor sensor scallop attributional analysis device, it can be achieved that in test process temperature and pressure accuracy it is accurate
Control, easy to operate, odor identification ability is strong, equipment cost is low, is easily carried.
The present invention takes following technical scheme:
A kind of scallop attributional analysis device based on metal oxide semiconductor sensor, including sample room 1, the sample
Room upper end has the top cover of slidingtype, and inside is equipped with electric cylinder 4, and 4 mandril of electric cylinder is connect with top cover lower part；It is set inside sample room
There is sample heating device 3, sample heating device 3 is connect by No.1 solenoid valve 7 with 5 one end of No.1 semiconductor cooling-heating device, and No.1 is partly led
5 other end of body cold-hot machine recycles air pump 8 by No.1 and connect with sample room 1；The sample room be equipped with No.1 pressure sensor 9,
No.1 temperature sensor 10, the sample room inside can be connected to by No. two solenoid valves 11 on top cover with outside；It further include surveying
Room 2 is tried, the test cabinet is connect by No. two circulation air pumps 23 with No. two 6 one end of semiconductor cooling-heating device, No. two semiconductor cold-hots
6 other end of device is connect by No. nine solenoid valves 22 with test cabinet 2；The test cabinet 2 is equipped with No. two temperature sensors 20 and two
Number pressure sensor 21；Test cabinet 2 is connected to by No. eight solenoid valves 19 with outside；It further include vacuum pump 14, the vacuum pump 14
It is connected to by No. three solenoid valves 12 with sample room 1, while being connected to by No. four solenoid valves 13 with test cabinet 2；It further include that compression is empty
Gas cylinder 25, the compressed air bottle are connect by No. six solenoid valves 17 with sample room 1, while passing through No. seven solenoid valves 18 and test
Room 2 connects；No. six solenoid valves 17 are also connected with each other with No. seven solenoid valves 18；The sample room 1 passes through check valve 15 and No. five electricity
Magnet valve 16 is connect with test cabinet 2；It further include control system, it is the control system and each solenoid valve, each circulation air pump, each
Temperature, pressure sensor and electric cylinder 4, vacuum pump 14, the connection of the respective electric signal of compressed air bottle 25.
Further, 2 bottom plate of test cabinet is equipped with metal oxide semiconductor sensor test device, the metal oxide
Semiconductor transducer test device is made of metal oxide semiconductor sensor 26 and analog input card 27.
Further, wherein the quantity of metal oxide semiconductor sensor 26 is 12, in a manner of circular arrangement
It is evenly arranged in 27 surface of analog input card, data acquisition is realized by external-connected port.
Further, 5, No. two semiconductor cooling-heating devices 6 of the No.1 semiconductor cooling-heating device respectively include cavity A28, axis stream
Fan 29, half monomer cooling piece 30, cavity B31, the both ends the cavity B31 are connected to sample room 1, and semiconductor chilling plate 30 is arranged
Between cavity A28 and cavity B31, cavity A28 is connected to outside.
A kind of working method of above-mentioned scallop attributional analysis device, comprising the following steps:
Gas collecting process: scallop sample is put into sample heating device 3, after sample heating device 3 is put into sample room, is passed through
The top end cover of the closing of electric cylinder 4 sample room 1.Close the solenoid valve 13, five solenoid valve 16, six of No. two solenoid valves 11, four
Solenoid valve 17, No. seven solenoid valves 18；It opens No.1 solenoid valve 7 and No. three solenoid valves 12, vacuum pump 14 starts to extract sample room 1
Interior gas acquires 1 air pressure of sample room by No.1 pressure sensor 9, and when absolute pressure value is lower than 10Pa, vacuum pump 14 stops
Work, is then shut off No. three solenoid valves 12, opens No. six solenoid valves 17, and compressed air bottle 25 discharges pure air to sample room 1,
When absolute pressure value reaches 90000Pa, No. six solenoid valves 17 are closed；No.1 semiconductor cooling-heating device 5 starts to heat work, No.1
Gas circulator 8 opens operation, while micromotor 33 in sample heating device 3 and stirring blade 34 enter working condition, sample
Gas in product room 1 enters No.1 semiconductor cooling-heating device 5 and is heated to 50 ± 0.5 DEG C, and the gas after being heated passes through No.1
Solenoid valve 7 enters in sample heating device 3, heats scallop sample, so that scallop discharges volatile flavor substance.Entire heating and
Discharging the smell time is 10 minutes.No.1 semiconductor cooling-heating device 5 controls the gas temperature in sample room 1, so that the temperature of gas
Stablize at 50 ± 0.5 DEG C；Gas enters the course of work of test cabinet 2 from sample room 1: closing No. eight solenoid valves 19, opens No. four
Solenoid valve 13 and No. nine solenoid valves 22.Remaining solenoid valve state is constant.Vacuum pump 14 starts to extract the gas in test cabinet 2, by
No. two 21 collecting test room of pressure sensor, 2 air pressures, when absolute pressure value is lower than 10Pa, vacuum pump 14 stops working, and closes
No. four solenoid valves 13 open No. five solenoid valves 16, remaining solenoid valve state is constant, so that the indoor gas of sample passes through check valve
15 and No. five solenoid valves 16 enter sample room；Electric cylinder 4 is opened simultaneously, so that the top end cover of sample room 1 moves downward compression
Internal gas, when No. two pressure sensors 21, which measure 2 air pressure inside of test cabinet, reaches 100000Pa, electric cylinder 4 stops, at once
No. five solenoid valves 16 are closed, then the work of electric cylinder 4 is so that the top end cover of sample room 1 resets；Close No.1 semiconductor cold-hot
Device 5 closes No.1 gas circulator 8, opens electric cylinder 4 and the top end cover of sample room 1 is opened, take out sample heating device 3,
It is reinstalled in sample room 1 after cleaning, for Preparatory work of experiment next time；
Gas test process: No. nine solenoid valves 22 are opened, 13, No. five solenoid valves 16 of No. four solenoid valves and No. seven electromagnetism are closed
Valve 18, remaining solenoid valve state are constant.No. two semiconductor cooling-heating devices 6 are started to work, and No. two gas circulators 23 open operation, dimension
The temperature for holding the gas in test cabinet 2 is stablized at 50 ± 0.5 DEG C.Metal oxide semiconductor sensor 26 in test cabinet 2 is adopted
Collect gas signal.Every the signal value of acquisition in 5 seconds, 3 signal values are acquired altogether, and taking the mathematical mean of 3 signal values is most
Whole signal value；After gas signal acquires, No. four solenoid valves 13 are opened, vacuum pump 14 is opened and works, it is indoor to extract test
Gas, by No. two 21 collecting test room of pressure sensor, 2 air pressures, when absolute pressure value is lower than 10Pa, vacuum pump 14 stops work
Make, close No. four solenoid valves 13, open No. seven solenoid valves 18, compressed air bottle 25 discharges pure air, No. two pressures to test cabinet 2
21 collecting test room of force snesor, 2 air pressure closes No. seven solenoid valves 16 when absolute pressure value reaches 100000Pa.
The beneficial effects of the present invention are:
1) gas collecting is carried out by sample room, scallop attributional analysis is carried out by test cabinet, temperature and pressure control is quasi-
Exactness is very high, and test result is accurate；
2) sample room and test cabinet are completely embedded, and the comprehensive utilization ratio between each component is higher, and structure is simple, and volume is tight
It gathers, cost is relatively low.
3) control system realizes the mutual linkage with components such as each sensor, solenoid valve, pump, vacuum pumps, accurate to control,
High degree of automation.
4) heating of scallop and volatile materials release process carry out in the environment of one standard atmospheric pressure of low pressure, negative pressure
Environmental benefits quickly volatilize in odoring substance；Freezed using semiconductor cooling-heating device or heated, can preferably control gas temperature,
System is reliable；It can quickly identify the quality of scallop, meet the needs quickly tested and analyzed；Sample heating device has multiple replacements
Product, it may be convenient to repeatedly be tested；Vacuum pump can extract residual gas in device completely completely, avoid last residual
Gas is stayed to have an impact the result tested next time.
Detailed description of the invention
Fig. 1 is the scallop attributional analysis apparatus structure schematic diagram the present invention is based on metal oxide semiconductor sensor.
Fig. 2 is the structural schematic diagram for testing indoor metal oxide semiconductor sensor test device.
Fig. 3 is the structural schematic diagram of sample heating device.
Fig. 4 is the structural schematic diagram of sample heating device.
In figure, 1. sample rooms, 2. test cabinets, 3. sample heating devices, 4. electric cylinders, 5. No.1 semiconductor cooling-heating devices, 6. 2
Number semiconductor cooling-heating device, 7. No.1 solenoid valves, 8. No.1s recycle air pump, 9. No.1 pressure sensors, 10. No.1 temperature sensing
Device, 11. No. two solenoid valves, 12. No. three solenoid valves, 13. No. four solenoid valves, 14. vacuum pumps, 15. check valves, 16. No. five electromagnetism
Valve, 17. No. six solenoid valves, 18. No. seven solenoid valves, 19. No. eight solenoid valves, 20. No. two temperature sensors, 21. No. two pressure pass
Sensor, 22. No. nine solenoid valves, 23. No. two circulation air pumps, 24. No. three pressure sensors, 25. compressed air bottles, 26. metal oxygens
Compound semiconductor, 27. collection plate pedestals, 28. cavity A, 29. aerofoil fans, 30. semiconductor chilling plates, 31. cavity B, 32. gas
Flow cavity, 33. micromotors, 34. stirring blades, 35. microporous filter screens, 36. heating cavities.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific examples.
Referring to Fig. 1, the scallop attributional analysis device based on metal oxide semiconductor sensor:
Basic composition:
1. sample room, 2. test cabinets, 3. sample heating devices, 4. electric cylinders, 5. No.1 semiconductor cooling-heating devices, 6. No. two half lead
Body cold-hot machine, 7. No.1 solenoid valves, 8. No. two solenoid valves, 9. No.1 pressure sensors, 10. No.1 temperature sensors, 11. No. three
Solenoid valve, 12. No. four solenoid valves, 13. No. five solenoid valves, 14. vacuum pumps, 15. check valves, 16. No. six solenoid valves, 17. No. seven
Solenoid valve, 18. No. eight solenoid valves, 19. No. nine solenoid valves, 20. No. two temperature sensors, 21. No. two pressure sensors, 22. ten
Number solenoid valve, 23. ride on Bus No. 11 solenoid valves, 24. No. three pressure sensors, 25. compressed air bottles.
2 bottom of test cabinet is disposed with metal oxide semiconductor sensor test device, which passes
Sensor test device is made of metal oxide semiconductor sensor 26 and collection plate board 27.
The structure of the sample heating device 3 include airstream compartment 32, micromotor 33, stirring blade 34, micro porous filtration
Net 35 and heating cavity 36 form
The structure of 5, No. two semiconductor cooling-heating devices 6 of No.1 semiconductor cooling-heating device is identical, and structure composition includes
Cavity A28, aerofoil fan 29, semiconductor chilling plate 30, cavity B31 composition.
Working principle:
Sample heating device 3 heats scallop by crushing scallop, by air, so that the volatile flavor inside scallop
Substance release comes out.The course of work: scallop sample is put into the heating cavity 36 with stirring blade 34, and the driving of micromotor 33 is stirred
It mixes blade 34 and smashes scallop sample, the air injection airstream compartment 32 being heated, hot-air passes through micro- at the top of airstream compartment 32
Hole filter screen 35 enters heating cavity 36, heats to smashed scallop sample, takes away the volatile materials of scallop, gas is last
It is discharged from the microporous filter screen 35 at 36 top of heating cavity.Micromotor 33 drives after scallop sample is put into heating cavity 36
Dynamic stirring blade 34 is run 10 seconds with 2800 revs/min of speed, then into 60 revs/min of stirring working condition, by stirring
It mixes so that hot-air and the scallop sample of crushing come into full contact with.After scallop sample is put into sample heating device 3, the entire working time
It is 10 minutes.
The work of 5, No. two semiconductor cooling-heating devices 6 of No.1 semiconductor cooling-heating device is divided into refrigeration or heating operations, process of refrigerastion:
The positive power supply of semiconductor chilling plate 30, cavity B31 are refrigeration side, and cavity A29 is heat radiation side.The structure of cavity A29 is metallic aluminium
Fin radiator discharges heat by aerofoil fan 29, and the structure of cavity B31 is aluminium flake plate radiator, and air enters from right end
Cavity B31, then left from left end, air is cooled in cavity B31.Heating operations: 30 reverse power supply of semiconductor chilling plate, chamber
Body B31 is heat radiation side, and cavity A29 is to dissipate refrigeration side.Cavity A29 is entered by 29 released cold quantity of aerofoil fan, air from right end
Cavity B31, then left from left end, air is heated in cavity B31.
2 bottom plate of test cabinet is equipped with metal oxide semiconductor sensor test device, which passes
Sensor test device is made of metal oxide semiconductor sensor 26 and analog input card 27.Wherein metal-oxide semiconductor (MOS) passes
The quantity of sensor 26 is 12, and 27 surface of analog input card is evenly arranged in a manner of circular arrangement, is realized by external-connected port
Data acquisition.
The top end cover of sample room 1 can open and move up and down, and the unlatching and up and down motion of top end cover are by electric cylinder 4
Driving, electric cylinder 4 drive the top end cover of sample room 1 to move downward, may make that the gas in sample room 1 is compressed, and air pressure increases
Greatly.
No.1 pressure sensor 9 and No.1 temperature sensor 10 are installed on 1 top end cap of sample room, measure sample respectively
The temperature and pressure of gas in room 1.
No. two pressure sensors 21 and No. two temperature sensors 20 are installed at the top of test cabinet 2, are measured in test cabinet 2 respectively
The temperature and pressure of gas.
The air intake duct of vacuum pump 14 connects sample rooms 1 by No. three solenoid valves 12, No. four 13 connecting test rooms 2 of solenoid valve,
Vacuum pump 14 can draw the gas in test cabinet 2 or sample room 1, be close to vacuum state.
If device is not used for a long time.No. three solenoid valves 12 and No. four solenoid valves 13 can be closed, No. two solenoid valves 11, eight are opened
Other all solenoid valves such as number solenoid valve 19 open compressed air bottle, and to experimental provision gas bleed 2 minutes, excluding may be residual
Remaining gas.
Clean compressed air is stored in compressed air bottle 25, No. three pressure sensors 24, compressed air are installed in top
Bottle 25 connects sample room 1 by No. six solenoid valves 17, passes through No. seven 18 connecting test rooms 2 of solenoid valve.
Gas collecting process: scallop sample is put into sample heating device 3, after sample heating device 3 is put into sample room, is passed through
The top end cover of the closing of electric cylinder 4 sample room 1.Close the solenoid valve 13, five solenoid valve 16, six of No. two solenoid valves 11, four
Solenoid valve 17, No. seven solenoid valves 18.It opens No.1 solenoid valve 7 and No. three solenoid valves 12, vacuum pump 14 starts to extract sample room 1
Interior gas acquires 1 air pressure of sample room by No.1 pressure sensor 9, and when absolute pressure value is lower than 10Pa, vacuum pump 14 stops
Work, is then shut off No. three solenoid valves 12, opens No. six solenoid valves 17, and compressed air bottle 25 discharges pure air to sample room 1,
When absolute pressure value reaches 90000Pa, that is, it is lower than the pressure environment of 1 standard atmospheric pressure, is more advantageous to volatilization inside scallop
The release of property odoring substance, closes No. six solenoid valves 17.No.1 semiconductor cooling-heating device 5 starts to heat work, No.1 gas circulation
Pump 8 opens operation, while micromotor 33 in sample heating device 3 and stirring blade 34 enter working condition, in sample room 1
Gas enters No.1 semiconductor cooling-heating device 5 and is heated to 50 ± 0.5 DEG C, the gas after being heated by No.1 solenoid valve 7 into
Enter into sample heating device 3, heat scallop sample, so that scallop discharges volatile flavor substance.Entire heating and release smell
Time is 10 minutes.No.1 semiconductor cooling-heating device 5 controls the gas temperature in sample room 1, so that the temperature of gas is stablized 50
±0.5℃。
Gas enters the course of work of test cabinet 2 from sample room 1: closing No. eight solenoid valves 19, opens No. four solenoid valves 13
With No. nine solenoid valves 22.Remaining solenoid valve state is constant.Vacuum pump 14 starts to extract the gas in test cabinet 2, by No. two pressure
21 collecting test room of sensor, 2 air pressure, when absolute pressure value is lower than 10Pa, vacuum pump 14 stops working, and closes No. four electromagnetism
Valve 13 opens No. five solenoid valves 16, remaining solenoid valve state is constant, so that the indoor gas of sample passes through check valve 15 and No. five
Solenoid valve 16 enters sample room.Electric cylinder 4 is opened simultaneously, so that the top end cover of sample room 1 moves downward compression internal gas,
When No. two pressure sensors 21, which measure 2 air pressure inside of test cabinet, reaches 100000Pa, electric cylinder 4 stops, and immediately closes off No. five
Solenoid valve 16, then the work of electric cylinder 4 is so that the top end cover of sample room 1 resets.
No.1 semiconductor cooling-heating device 5 is closed, No.1 gas circulator 8 is closed, opens the top that electric cylinder 4 makes sample room 1
Portion's end cap is opened, and sample heating device 3 is taken out, and is reinstalled in sample room 1 after cleaning, for Preparatory work of experiment next time.
Gas test process: No. nine solenoid valves 22 are opened, 13, No. five solenoid valves 16 of No. four solenoid valves and No. seven electromagnetism are closed
Valve 18, remaining solenoid valve state are constant.No. two semiconductor cooling-heating devices 6 are started to work, and No. two gas circulators 23 open operation, dimension
The temperature for holding the gas in test cabinet 2 is stablized at 50 ± 0.5 DEG C.Metal oxide semiconductor sensor 26 in test cabinet 2 is adopted
Collect gas signal.Every one signal of acquisition in 5 seconds, No. 3 signals are acquired altogether, and taking mathematical mean is final gas signal.Signal
After acquisition, No. four solenoid valves 13 are opened, vacuum pump 14 is opened and works, extract and test indoor gas, passed by No. two pressure
21 collecting test room of sensor, 2 air pressure, when absolute pressure value is lower than 10Pa, vacuum pump 14 stops working, and closes No. four solenoid valves
13, No. seven solenoid valves 18 are opened, compressed air bottle 25 discharges pure air to test cabinet 2, and No. two acquisitions of pressure sensor 21 are surveyed
Examination 2 air pressure of room closes No. seven solenoid valves 16 when absolute pressure value reaches 100000Pa.
The present invention is made of metal oxide sensor and relevant device, can be identified and be fanned by metal oxide sensor
The smell of shellfish realizes to scallop attributional analysis, solves and existing examines by human body itself organ to scallop sample volatilization gas
It surveys, there are subjective differences, and the technical issues of be harmful to the human body, and the present invention provides one kind partly to be led based on metal oxide
The scallop attributional analysis device of body sensor can realize attributional analysis by identifying scallop escaping gas.
The heating of scallop and volatile materials release process carry out in the environment of one standard atmospheric pressure of low pressure, negative pressure ring
Border is conducive to odoring substance and quickly volatilizees；Freezed using semiconductor cooling-heating device or heated, can preferably controlled gas temperature, be
System is reliable；It can quickly identify the quality of scallop, meet the needs quickly tested and analyzed；Sample heating device has multiple substitutes,
The progress that can be convenient repeatedly is tested；Vacuum pump can extract residual gas in device completely completely, avoid last residual
Gas has an impact the result tested next time.
It is the preferred embodiment of the present invention above, those of ordinary skill in the art can also carry out various changes on this basis
It changes or improves, under the premise of not departing from the present invention total design, these transformation or improve belong to claimed
Within the scope of.
Claims (4)
1. a kind of scallop attributional analysis device based on metal oxide semiconductor sensor, it is characterised in that:
Including sample room (1), the sample room upper end has the top cover of slidingtype, and inside is equipped with electric cylinder (4), electric cylinder (4)
Mandril is connect with top cover lower part；Sample heating device (3) are equipped with inside sample room, sample heating device (3) passes through No.1 solenoid valve (7)
Connect with No.1 semiconductor cooling-heating device (5) one end, No.1 semiconductor cooling-heating device (5) other end by No.1 circulation air pump (8) with
Sample room (1) connection；The sample room is equipped with No.1 pressure sensor (9), No.1 temperature sensor (10), in the sample room
Portion can be connected to by No. two solenoid valves (11) on top cover with outside；
It further include test cabinet (2), the test cabinet is connected by No. two circulation air pumps (23) and No. two semiconductor cooling-heating device (6) one end
It connects, No. two semiconductor cooling-heating device (6) other ends are connect by No. nine solenoid valves (22) with test cabinet (2)；On the test cabinet (2)
Equipped with No. two temperature sensors (20) and No. two pressure sensors (21)；Inside test cabinet (2) by No. eight solenoid valves (19) with
Outside connection；
It further include vacuum pump (14), the vacuum pump (14) is connected to by No. three solenoid valves (12) with sample room (1), is passed through simultaneously
No. four solenoid valves (13) are connected to test cabinet (2)；
It further include compressed air bottle (25), the compressed air bottle is connect by No. six solenoid valves (17) with sample room (1), simultaneously
It is connect by No. seven solenoid valves (18) with test cabinet (2)；No. six solenoid valves (17) are also connected with each other with No. seven solenoid valves (18)；
The sample room (1) is connect by check valve (15) and No. five solenoid valves (16) with test cabinet (2)；
Further include control system, the control system and each solenoid valve, each circulation air pump, each temperature, pressure sensor,
And electric cylinder (4), vacuum pump (14), compressed air bottle (25) respectively electric signal connection；
Test cabinet (2) bottom plate is equipped with metal oxide semiconductor sensor test device, metal-oxide semiconductor (MOS) sensing
Device test device is made of metal oxide semiconductor sensor (26) and analog input card (27).
2. scallop attributional analysis device as described in claim 1, it is characterised in that: wherein metal oxide semiconductor sensor
(26) quantity is 12, and analog input card (27) surface is evenly arranged in a manner of circular arrangement, is realized by external-connected port
Data acquisition.
3. scallop attributional analysis device as described in claim 1, it is characterised in that: the No.1 semiconductor cooling-heating device (5), two
Number semiconductor cooling-heating device (6) respectively includes cavity A (28), aerofoil fan (29), semiconductor chilling plate (30), cavity B (31), institute
(31) both ends cavity B are stated to be connected to sample room (1), semiconductor chilling plate (30) setting cavity A (28) and cavity B (31) it
Between, cavity A (28) is connected to outside.
4. a kind of working method of scallop attributional analysis device described in claim 1, which comprises the following steps:
Gas collecting process: scallop sample is put into sample heating device (3), after sample heating device (3) is put into sample room, is passed through
Electric cylinder (4) closes the end cap at the top of sample room (1)；Close No. two solenoid valves (11), No. four solenoid valves (13), No. five solenoid valves
(16), No. six solenoid valves (17), No. seven solenoid valves (18)；Open No.1 solenoid valve (7) and No. three solenoid valves (12), vacuum pumps
(14) start to extract the gas in sample room (1), acquire sample room (1) air pressure by No.1 pressure sensor (9), work as absolute pressure
When value is lower than 10Pa, vacuum pump (14) stops working, and is then shut off No. three solenoid valves (12), opens No. six solenoid valves (17), presses
Contracting air bottle (25) closes No. six solenoid valves when absolute pressure value reaches 90000Pa to sample room (1) release pure air
(17)；No.1 semiconductor cooling-heating device (5) starts to heat work, and No.1 recycles air pump (8) and opens operation, while sample heating device
(3) micromotor (33) and stirring blade (34) in enter working condition, and the gas in sample room (1) enters No.1 and partly leads
Body cold-hot machine (5) is heated to 50 ± 0.5 DEG C, and the gas after being heated enters sample heating device by No.1 solenoid valve (7)
(3) in, scallop sample is heated, so that scallop discharges volatile flavor substance；Entire heating and release smell time are 10 minutes；
No.1 semiconductor cooling-heating device (5) controls the gas temperature in sample room (1), so that the temperature of gas is stablized at 50 ± 0.5 DEG C；Gas
Body from sample room (1) enter test cabinet (2) the course of work: close No. eight solenoid valves (19), open No. four solenoid valves (13) and
No. nine solenoid valves (22)；Remaining solenoid valve state is constant；Vacuum pump (14) starts to extract the gas in test cabinet (2), by No. two
Pressure sensor (21) collecting test room (2) air pressure, when absolute pressure value is lower than 10Pa, vacuum pump (14) stops working, and closes
No. four solenoid valves (13) are closed, No. five solenoid valves (16) are opened, remaining solenoid valve state is constant, so that the indoor gas of sample passes through
Check valve (15) and No. five solenoid valves (16) enter sample room；Electric cylinder (4) are opened simultaneously, so that the top end of sample room (1)
Lid moves downward compression internal gas, reaches 100000Pa when No. two pressure sensors (21) measure test cabinet (2) air pressure inside
When, electric cylinder (4) stop, immediately closing off No. five solenoid valves (16), then electric cylinder (4) work so that sample room (1) top
End cap resets；It closes No.1 semiconductor cooling-heating device (5), closes No.1 circulation air pump (8), open electric cylinder (4) and make sample room
(1) top end cover is opened, and sample heating device (3) are taken out, and is reinstalled in sample room (1) after cleaning, to test next time
Prepare；
Gas test process: No. nine solenoid valves (22) are opened, No. four solenoid valves (13), No. five solenoid valves (16) and No. seven electricity are closed
Magnet valve (18), remaining solenoid valve state are constant；No. two semiconductor cooling-heating devices (6) are started to work, and No. two circulation air pumps (23) are opened
Operation maintains the temperature of the gas in test cabinet (2) to stablize at 50 ± 0.5 DEG C；Metal-oxide semiconductor (MOS) in test cabinet (2)
Sensor (26) acquires gas signal；Every the signal value of acquisition in 5 seconds, 3 signal values are acquired altogether, take the number of 3 signal values
Average value is final signal value；After gas signal acquires, No. four solenoid valves (13) are opened, open vacuum pump (14) work
Make, extracts and test indoor gas, by No. two pressure sensor (21) collecting test room (2) air pressures, when absolute pressure value is lower than
When 10Pa, vacuum pump (14) stops working, and closes No. four solenoid valves (13), opens No. seven solenoid valves (18), compressed air bottle
(25) pure air, No. two pressure sensor (21) collecting test room (2) air pressures, when absolute pressure value are discharged to test cabinet (2)
When reaching 100000Pa, No. seven solenoid valves (18) are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691661.7A CN107688042B (en) | 2017-08-14 | 2017-08-14 | A kind of scallop attributional analysis device based on metal oxide semiconductor sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691661.7A CN107688042B (en) | 2017-08-14 | 2017-08-14 | A kind of scallop attributional analysis device based on metal oxide semiconductor sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107688042A CN107688042A (en) | 2018-02-13 |
| CN107688042B true CN107688042B (en) | 2019-09-24 |
Family
ID=61152647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710691661.7A Expired - Fee Related CN107688042B (en) | 2017-08-14 | 2017-08-14 | A kind of scallop attributional analysis device based on metal oxide semiconductor sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107688042B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453584A (en) * | 2003-06-02 | 2003-11-05 | 江苏大学 | Fast non-destructive detection method and device of food smell based on gas sensor array technology |
| CN101936912A (en) * | 2010-08-25 | 2011-01-05 | 江苏大学 | Method and device for detecting freshness of fish based on olfaction visualization |
| CN102297930A (en) * | 2011-07-20 | 2011-12-28 | 浙江大学 | Method for identifying and predicting freshness of meat |
| CN103063813A (en) * | 2012-12-26 | 2013-04-24 | 江苏大学 | Rapid nondestructive on-line detection method and apparatus for freshness of fishes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3777753B2 (en) * | 1997-10-15 | 2006-05-24 | 株式会社島津製作所 | Odor measuring device |
-
2017
- 2017-08-14 CN CN201710691661.7A patent/CN107688042B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453584A (en) * | 2003-06-02 | 2003-11-05 | 江苏大学 | Fast non-destructive detection method and device of food smell based on gas sensor array technology |
| CN101936912A (en) * | 2010-08-25 | 2011-01-05 | 江苏大学 | Method and device for detecting freshness of fish based on olfaction visualization |
| CN102297930A (en) * | 2011-07-20 | 2011-12-28 | 浙江大学 | Method for identifying and predicting freshness of meat |
| CN103063813A (en) * | 2012-12-26 | 2013-04-24 | 江苏大学 | Rapid nondestructive on-line detection method and apparatus for freshness of fishes |
Non-Patent Citations (1)
| Title |
|---|
| 利用无损检测和多传感器数据融合技术快速检测鸡肉新鲜度;Khulal Urmila;《中国学位论文全文数据库》;20161103;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107688042A (en) | 2018-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201327427Y (en) | Calibrating device for temperature and moisture measurement | |
| CN207066816U (en) | atmosphere sampling instrument | |
| CN104914030B (en) | The method of its measurement rock sample residue gas of whole airtight air content measuring apparatus and application | |
| CN106942943A (en) | A kind of precious file itinerant exhibition cabinet | |
| CN207488245U (en) | A kind of efficient gas chromatograph | |
| CN107688042B (en) | A kind of scallop attributional analysis device based on metal oxide semiconductor sensor | |
| CN206121763U (en) | High and low temperature alternate damp heat test box | |
| CN208720996U (en) | A kind of programmable constant temperature and moisture test machine equipment | |
| CN110437994A (en) | A kind of air microbe online detection instrument | |
| CN108645692A (en) | A kind of mattress formaldehyde and TVOC detection devices | |
| CN107238548B (en) | Sampling and weighing integrated beta-ray smoke mass weighing instrument | |
| CN208802349U (en) | Article storage apparatus | |
| CN107202472B (en) | A kind of automation vacuum and low temperature coal sample drying device | |
| CN209042916U (en) | A kind of drying box with gas collecting apparatus | |
| CN208270316U (en) | A kind of mattress formaldehyde and TVOC detection device | |
| CN107511180A (en) | A kind of high-low temperature test chamber | |
| CN207266860U (en) | A kind of Multifunctional super-clean bench | |
| CN203587568U (en) | VOC (volatile organic compound) and formaldehyde emission detection device | |
| CN206173291U (en) | Red wine fermentation cylinder | |
| CN113956967B (en) | Sequencer with heating device | |
| CN104048701B (en) | A kind of experimental provision measuring microwave-vacuum drying technological parameter | |
| CN105698971B (en) | A kind of temperature sensor for vehicle Auto-Test System and test method | |
| CN208260770U (en) | A kind of novel constant-temperature constant humidity cabinet for jujube aging blacking | |
| CN209237976U (en) | A kind of climatic chamber of novel high-stability | |
| CN106732196A (en) | A kind of reaction unit of use steam pyrolysis industrial chemicals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 Termination date: 20210814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |