CN207540968U - A kind of chilled aquatic products escaping gas analyzer - Google Patents
A kind of chilled aquatic products escaping gas analyzer Download PDFInfo
- Publication number
- CN207540968U CN207540968U CN201721706061.5U CN201721706061U CN207540968U CN 207540968 U CN207540968 U CN 207540968U CN 201721706061 U CN201721706061 U CN 201721706061U CN 207540968 U CN207540968 U CN 207540968U
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- Prior art keywords
- air accumulator
- aquatic products
- ray
- optical
- fibre
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Abstract
The utility model provides a kind of chilled aquatic products escaping gas analyzer, and the freshness protection package for filling fillet is connected with air accumulator；The outside of air accumulator is provided with light source, and the outer wall of air accumulator has attached fibre-optical probe, and fibre-optical probe is connected with concentrator, and the optical signal that gas molecule generates is passed to concentrator by fibre-optical probe by optical fiber；Optical signal is passed to by photophore by optical fiber, photophore, which is assembled, collects the ray that light source is emitted, and the ray for assembling collection is imported in monochromatic device assembly, monochromatic device assembly injects ray to detect transmitted intensity, and the optical signal conversion of ray is become the detector of electric signal, detector is connected with display, display spectrogram.Different wavelength can be generated under the irradiation of infrared light supply using different gas, so as to there is different absorption peaks, the judgement quickly completed to aquatic products quality is realized in the section of wavelength where having absorption peak caused by gas so as to judge the structure of gas molecule.
Description
Technical field
The utility model is related to chilled aquatic products detection fields more particularly to a kind of chilled aquatic products escaping gas to measure
Instrument.
Background technology
At present, with increase of the people to aquatic products demand, the quality of aquatic products quality is into people's critical concern
Problem.Aquatic products quality not only influences the flavor of aquatic products in itself after changing, but also may be putrid and deteriorated, causes food
Product security problems.Usually we judge aquatic products quality quality mainly by sensory evaluation, Physicochemical test and microorganism
Experiment etc., but operating procedure is complex, time-consuming and laborious on the whole for these three methods, it is impossible to judge aquatic products product faster
The variation of matter.With the progress of scientific research technology, the variation of aquatic products gas content in storage is studied also into judgement water
The important method of product quality quality.But it is now limited to the research of this respect, shortage can on-line checking and monitoring gas contain
Measure the instrument of variation, it is therefore necessary to go to research and develop a kind of chilled aquatic products escaping gas analyzer, to realize rapidly
Complete the judgement to aquatic products quality.
Invention content
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of chilled aquatic products escaping gas and surveys
Determine instrument, including：The freshness protection package of fillet is filled, the air accumulator connected with freshness protection package；The outside of air accumulator is provided with into air accumulator
Portion provides excitation energy, and testing molecule is made to generate the light source of light absorption, and the outer wall of air accumulator has attached fibre-optical probe, and fibre-optical probe connects
Concentrator is connected to, the optical signal that gas molecule generates is passed to concentrator by fibre-optical probe by optical fiber；Concentrator passes through optical fiber
Optical signal is passed into photophore, photophore, which is assembled, collects the ray that light source is emitted, and the ray importing for assembling collection is single
In color device assembly, ray is injected for detecting transmitted intensity, and the optical signal conversion of ray is become telecommunications by monochromatic device assembly
Number detector, detector is connected with display, display spectrogram.
Preferably, monochromatic device assembly includes：Including：Framework, grating and concavees lens；
Grating and concavees lens are arranged on inside framework；
Framework is equipped with entrance slit and exit slit；Entrance slit and exit slit are located at the same side of framework；It is incident
Spacer, spacer setting of the grating between entrance slit and exit slit, interval are equipped between slit and exit slit
The length of section is more than the length of grating；
Concavees lens are set far from spacer.
Preferably, the center line of concavees lens, the center line of spacer and the center line of grating are on same straight line.
Preferably, gas valve is provided between freshness protection package and air accumulator
Preferably, air accumulator includes：Air accumulator top and air accumulator lower part；
At least one light source is equipped with close to air accumulator top；
At least one light source is equipped with close to air accumulator lower part.
Preferably, air accumulator top has sticked at least one fibre-optical probe；
Air accumulator lower part has sticked at least one fibre-optical probe.
Preferably, detector includes：Signal processor, photoelectric converter and signal amplifier；
Photoelectric converter is used to the optical signal conversion for receiving ray becoming electric signal；
Signal amplifier is used to electric signal being amplified processing；
Signal processor is in a linear relationship for the variation of electric signal and sample concentration to be handled, and is surveyed and drawn according to experiment
Absorption peak position, intensity and the shape of infrared spectrogram, using group's vibration frequency and the relationship of molecular structure, determine absorption band
Ownership, confirm group or chemical bond contained in molecule, and then estimate the structure of molecule.
As can be seen from the above technical solutions, the utility model has the following advantages：
The transmission medium that chilled aquatic products escaping gas analyzer uses is optical fiber, ensures efficiency of transmission.Chilled aquatic products
Product escaping gas analyzer is combined made gas sensing device with Spectrum Absorption Principle using optical fiber, utilizes
The principle of Lambert-Beer laws obtains optical signal from this device, then converts optical signals into electric signal by converter；
Chilled aquatic products escaping gas analyzer can generate different wavelength using different gas under the irradiation of infrared light supply, from
And having different absorption peaks, the section of wavelength where having absorption peak caused by gas is real so as to judge the structure of gas molecule
Now quickly complete the judgement to aquatic products quality.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, attached drawing needed in description will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for this field
For those of ordinary skill, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is chilled aquatic products escaping gas analyzer overall schematic.
Specific embodiment
Purpose of utility model, feature, advantage to enable the utility model is more apparent and understandable, below will fortune
With specific embodiment and attached drawing, the technical solution of the utility model protection is clearly and completely described, it is clear that below
The described embodiments are only a part of the embodiments of the utility model, and not all embodiment.Based on the reality in this patent
Example is applied, all other embodiment that those of ordinary skill in the art are obtained without making creative work all belongs to
In the range of this patent protection.
The present embodiment provides a kind of chilled aquatic products escaping gas analyzer, as shown in Figure 1, including：Fill fillet
Freshness protection package 1, the air accumulator 2 connected with freshness protection package 1；The outside of air accumulator 2, which is provided with to the inside of air accumulator 2, provides excitation energy, makes
Testing molecule generates the light source 3 of light absorption, and the outer wall of air accumulator 2 has attached fibre-optical probe 4, and fibre-optical probe 4 is connected with concentrator
5, the optical signal that gas molecule generates is passed to concentrator 5 by fibre-optical probe 4 by optical fiber；Concentrator 5 is believed light by optical fiber
Photophore 6 number is passed to, photophore 6, which is assembled, collects the ray that light source 3 is emitted, and will assemble the ray collected and import monochromator
In component 9, ray is injected for detecting transmitted intensity, and the optical signal conversion of ray is become electric signal by monochromatic device assembly 9
Detector 12, detector 12 is connected with display 13,13 spectrogram of display.
In the present embodiment, monochromatic device assembly 9 includes：Including：Framework 15, grating 7 and concavees lens 8；Grating 7 and concavees lens 8
It is arranged on inside framework 15；Framework 15 is equipped with entrance slit 10 and exit slit 11；Entrance slit 10 and exit slit 11 are set
In the same side of framework 15；Spacer 16 is equipped between entrance slit 10 and exit slit 11, grating 7 is close to 10 He of entrance slit
Spacer 16 between exit slit 11 is set, and the length of spacer 16 is more than the length of grating 7；Concavees lens 8 are far from spacer
16 settings.
The center line of concavees lens 8, the center line of spacer 16 and the center line of grating 7 are on same straight line.
In the present embodiment, gas valve 14. is provided between freshness protection package 1 and air accumulator 2
In the present embodiment, air accumulator 2 includes：Air accumulator top 21 and air accumulator lower part 22；It is set close to air accumulator top 21
There is at least one light source 3；At least one light source 3 is equipped with close to air accumulator lower part 22.In the present embodiment, air accumulator top 21 sticks
There is at least one fibre-optical probe 4；Air accumulator lower part 22 has sticked at least one fibre-optical probe 4.
In the present embodiment, detector 12 includes：Signal processor, photoelectric converter and signal amplifier；Photoelectric converter
For the optical signal conversion for receiving ray to be become electric signal；Signal amplifier is used to electric signal being amplified processing；Signal
Processor is in a linear relationship by the variation of electric signal and sample concentration processing, according to the surveyed and drawn infrared spectrogram of experiment
Peak position, intensity and shape are absorbed, using group's vibration frequency and the relationship of molecular structure, determines the ownership of absorption band, is confirmed
Contained group or chemical bond in molecule, and then estimate the structure of molecule.
Specifically, using the variation for detecting quality during turbot controlled atmosphere as example, first open fill big water chestnut first
The gas valve 14 of the freshness protection package 1 of flounder sliced meat, makes freshness protection package 1 be connected with air accumulator 2, opens the light at 2 both ends of air accumulator respectively
The optical signal that gas molecule generates is passed to concentrator 5 by source 3 by fibre-optical probe 4, then concentrator 5 by optical fiber by light
Signal passes to photophore 6, and the effect of photophore 6 is to assemble to collect the ray that light source is emitted, it then is imported monochromator group
In part 9；Light beam first enters monochromatic device assembly 9 by entrance slit 10 and is mapped on concavees lens 8, and concavees lens 8 reflect the light onto front
Grating 7 on focus on, grating 7 reflected the light onto by its reflex can be formed on concavees lens 8 it is equal with entrance slit 10
Capable light beam can by rotating shutter 7, the light of various wavelength can transmit in order from exit slit 11 in operation
It goes out；Light beam is projected by exit slit 11 into detector 12, and detector 12 detects this monochromatic intensity, and this light is believed
Number conversion becomes electric signal and amplifies this electric signal；The variation of electric signal and sample concentration are in a linear relationship, finally by showing
Device 13 shows and records that certain display 13 may also set up data processing software and A/D screens.Detector 12 is according to experiment
Absorption peak position, intensity and the shape for the infrared spectrogram surveyed and drawn, using group's vibration frequency and the relationship of molecular structure, really
Determine the ownership of absorption band, confirm group or chemical bond contained in molecule, and then estimate the structure of molecule.In chilled aquatic products
Gas that may be present has CO during controlled atmosphere2, trimethylamine etc., wherein CO2Infrared absorption there are two peak, in face with
Out-of-plane bending vibration frequency is equal, in 667cm-1Place, asymmetric stretch 2349cm-1；The infrared absorption peak of trimethylamine is more multiple
It is miscellaneous, mainly in 2988cm-1、2959cm-1、 2881cm-1、2836cm-1、2787cm-1、1640cm-1、1472cm-1、1266cm-1、
1205cm-1、 1103cm-1、1031cm-1And 816cm-1There is absorption peak at place, is colourless gas under trimethylamine room temperature, there is fish raw meat evil
It is smelly, water, ethyl alcohol and ether are dissolved in, it is inflammable, it is toxic, then illustrate that corruption has become turbot fillet at this moment when there is the gas
Matter.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, identical similar portion refers to mutually between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (7)
1. a kind of chilled aquatic products escaping gas analyzer, which is characterized in that including：The freshness protection package (1) of fillet is filled, with guarantor
The air accumulator (2) of fresh bag (1) connection；The outside of air accumulator (2) is provided with to offer excitation energy inside air accumulator (2), is made to be measured
Molecule generates the light source (3) of light absorption, and the outer wall of air accumulator (2) has attached fibre-optical probe (4), and fibre-optical probe (4) is connected with poly-
The optical signal that gas molecule generates is passed to concentrator (5) by light device (5), fibre-optical probe (4) by optical fiber；Concentrator (5) is logical
It crosses optical fiber and optical signal is passed into photophore (6), photophore (6), which is assembled, collects the ray that light source (3) is emitted, and receive assembling
The ray of collection is imported in monochromatic device assembly (9), and monochromatic device assembly (9) injects ray to detect transmitted intensity, and ray
Optical signal conversion become the detector (12) of electric signal, detector (12) is connected with display (13), display (13) display
Spectrogram.
2. chilled aquatic products escaping gas analyzer according to claim 1, which is characterized in that monochromatic device assembly (9)
Including：Including：Framework (15), grating (7) and concavees lens (8)；
It is internal that grating (7) and concavees lens (8) are arranged on framework (15)；
Framework (15) is equipped with entrance slit (10) and exit slit (11)；Entrance slit (10) and exit slit (11) are located at frame
The same side of body (15)；Spacer (16) is equipped between entrance slit (10) and exit slit (11), grating (7) is close to incident narrow
Spacer (16) setting between (10) and exit slit (11) is stitched, the length of spacer (16) is more than the length of grating (7)；
Concavees lens (8) are set far from spacer (16).
3. chilled aquatic products escaping gas analyzer according to claim 2, which is characterized in that
The center line of concavees lens (8), the center line of spacer (16) and the center line of grating (7) are on same straight line.
4. chilled aquatic products escaping gas analyzer according to claim 1, which is characterized in that freshness protection package (1) and storage
Gas valve (14) is provided between gas tank (2).
5. chilled aquatic products escaping gas analyzer according to claim 1, which is characterized in that
Air accumulator 2 includes：Air accumulator top (21) and air accumulator lower part (22)；
Close to air accumulator top (21) equipped at least one light source (3)；
Close to air accumulator lower part (22) equipped at least one light source (3).
6. chilled aquatic products escaping gas analyzer according to claim 5, which is characterized in that
Air accumulator top (21) has sticked at least one fibre-optical probe (4)；
Air accumulator lower part (22) has sticked at least one fibre-optical probe (4).
7. chilled aquatic products escaping gas analyzer according to claim 1, which is characterized in that
Detector (12) includes：Signal processor, photoelectric converter and signal amplifier；
Photoelectric converter is used to the optical signal conversion for receiving ray becoming electric signal；
Signal amplifier is used to electric signal being amplified processing；
Signal processor is in a linear relationship for the variation of electric signal and sample concentration to be handled, and is surveyed and drawn according to experiment infrared
Absorption peak position, intensity and the shape of spectrogram using group's vibration frequency and the relationship of molecular structure, determine returning for absorption band
Belong to, confirm group or chemical bond contained in molecule, and then estimate the structure of molecule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721706061.5U CN207540968U (en) | 2017-12-08 | 2017-12-08 | A kind of chilled aquatic products escaping gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721706061.5U CN207540968U (en) | 2017-12-08 | 2017-12-08 | A kind of chilled aquatic products escaping gas analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207540968U true CN207540968U (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721706061.5U Expired - Fee Related CN207540968U (en) | 2017-12-08 | 2017-12-08 | A kind of chilled aquatic products escaping gas analyzer |
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| CN (1) | CN207540968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764766A (en) * | 2017-12-08 | 2018-03-06 | 山东商业职业技术学院 | A kind of chilled aquatic products escaping gas analyzer |
-
2017
- 2017-12-08 CN CN201721706061.5U patent/CN207540968U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764766A (en) * | 2017-12-08 | 2018-03-06 | 山东商业职业技术学院 | A kind of chilled aquatic products escaping gas analyzer |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 Termination date: 20181208 |