CN107101945A - A kind of multichannel multi-wavelength light spectrum detection device - Google Patents
A kind of multichannel multi-wavelength light spectrum detection device Download PDFInfo
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- CN107101945A CN107101945A CN201710388995.7A CN201710388995A CN107101945A CN 107101945 A CN107101945 A CN 107101945A CN 201710388995 A CN201710388995 A CN 201710388995A CN 107101945 A CN107101945 A CN 107101945A
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000001228 spectrum Methods 0.000 title claims abstract description 20
- 230000003595 spectral effect Effects 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 4
- 239000000523 sample Substances 0.000 description 53
- 230000003287 optical effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention provides a kind of multichannel multi-wavelength light spectrum detection device, with the unique light-source system of design, when needing to detect a variety of multiple samples, can multichannel detect and may be switched to simultaneously the light source of different wave length, realize the fast and reliable detection of batch samples.Including light source, light source rotating shaft, rotating shaft drive device and sample cell；The light source includes the strip lamp bar of multiple single wavelength light source lamps with longitudinal arrangement, and the light source lamp bar of different wave length is in be arranged on circumferentially distributedly in light source rotating shaft；The sample cell includes the sample box of multiple longitudinal arrangements, and each sample box side has thang-kng passage, and is adapted with the illuminator in light source lamp bar；The illuminator of light source lamp bar of the rotating shaft drive device for making different wave length, which is rotated to sample box thang-kng passage, enters light side.
Description
Technical field
The present invention relates to technical field of food safety detection, more particularly to a kind of multichannel multi-wavelength spectrum detection dress
Put.
Background technology
In technical field of food safety detection, generally using spectrophotometry measured matter in certain wave strong point or one
The absorbance or luminous intensity of light in wavelength range, qualitative and quantitative analysis is carried out to the material.Used in AAS
Detecting instrument is referred to as spectrophotometer, and spectrophotometer is also known as spectrometer, is the light that the light of complicated component is decomposed into spectrum line
Spectrometer device, it is 200-380nm that measurement range, which generally comprises the visible region that wave-length coverage is 380-780nm and wave-length coverage,
Ultraviolet region.Spectrometer is mainly made up of light source, monochromator, sample cell, detector and signal processor etc., different light sources
There is its distinctive emission spectrum, therefore can be using light source of the different illuminators as instrument.Spectrometer has become the modern times
Molecular biosciences laboratory conventional instrument.Existing spectrometer generally can produce the light source of multiple wavelength using one, by being
Row light-dividing device, so that specific wavelength is produced, when the light of different wave length continuously is irradiated into certain density sample solution,
After light is through the sample of test, some light is absorbed, and just be can obtain the light absorption value corresponding with different wave length and (is absorbed strong
Degree).The light absorption value of sample is directly proportional to the concentration of sample, the light absorption value of sample is calculated, so as to change into the concentration of sample.Such as with
Wavelength is abscissa, and absorption intensity is ordinate, so that it may draw the absorption spectrum curve of the material, can also be entered using the curve
Qualitative, the quantitative analysis of row material.Traditional spectrometer generally can produce the light source of multiple wavelength using one, one during detection
As can only for a kind of sample carry out multi-wavelength scanning, to realize to the multi-channel detection of several samples, it is necessary to many spectrometers
Use cooperatively, when being detected for batch samples, complex operation, cost is high, wastes time and energy.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of multichannel multi-wavelength light spectrum detection device, only with design
Special light-source system, when needing to detect a variety of multiple samples, can multichannel detect simultaneously and may be switched to different wave length
Light source, realize the fast and reliable detection of batch samples.
The technical scheme is that：
1. a kind of multichannel multi-wavelength light spectrum detection device, it is characterised in that including light source, light source rotating shaft, rotating shaft driving
Device and sample cell；The light source includes the strip lamp bar of multiple single wavelength light source lamps with longitudinal arrangement, different wave length
Light source lamp bar in circumferentially distributedly be arranged on light source rotating shaft on；The sample cell includes the sample box of multiple longitudinal arrangements, often
Individual sample box side has thang-kng passage, and is adapted with the illuminator in the light source lamp bar；The rotating shaft drive device is used
Rotated in the illuminator for the light source lamp bar for making different wave length to the sample box thang-kng passage and enter light side.
2. described in rotating shaft drive device include motor, driving gear, driven gear, the driven gear and light source rotating shaft are same
Axle is connected, and with driving gear engagement, the driving gear is arranged in the drive shaft of motor, by motor by driving gear and
Driven gear driving light source rotating shaft rotation.
3. also including photoelectric sensor, the photoelectric sensor is connected with control mainboard, and the control mainboard passes through motor
Drive circuit controls the rotary speed and angle of rotating shaft, and the angle provided according to photoelectric sensor controls reference point, revolves rotating shaft
The illuminator of the light source lamp bar of different wave length, which is positioned to the sample box thang-kng passage, when turning enters light side.
4. described in the light extraction side of sample box be provided with receiver, for receiving through the spectral signal after sample；It is described
Receiver is connected with control mainboard, and spectral signal is handled by control mainboard.
5. described in single wavelength light source lamp be Single wavelength LED.
6. described in the LED light bar of different wave length be connected in parallel by conducting slip ring, the conducting slip ring includes coaxial package
Conductive sliding ring rotor and conducting slip ring stator, the LED light bar of different wave length is connected in parallel by conductive sliding ring rotor outlet, correspondence
Conducting slip ring stator outlet be connected in parallel in control mainboard.
7. described in light source rotating shaft be hollow-core construction, connect LED light bar cable inside light source rotating shaft cabling.
8. described in different wave length LED light bar include 8, be uniformly distributed around light source rotating shaft.
9. described in sample cell include two row, be symmetricly set on the both sides of light source rotating shaft.
10. also including base and upper lid, the two ends of the light source rotating shaft are fixed on the end of base, and base both sides are symmetrically pacified
Fill sample cell；The motor is arranged on below base, and the conducting slip ring and photoelectric sensor are fixed on the end of base；It is described
Upper lid is tightly connected with base, it is ensured that spectrometer will not light leak.
The technique effect of the present invention：
The present invention provides a kind of multichannel multi-wavelength light spectrum detection device, with the unique light-source system of design, works as needs
When detecting a variety of multiple samples, can multichannel detect and may be switched to simultaneously the light source of different wave length, realize high-volume sample
The fast and reliable detection of product.
The light-source system that the present invention is designed, using the barcode LED lamp bar being made up of Single wavelength LED, the LED of different wave length
Lamp bar is in be arranged on circumferentially distributedly in light source rotating shaft；Sample cell is arranged on light source rotating shaft side, each sample box of sample cell
Side there is thang-kng passage, the sample box of stripe-arrangement is adapted with the LED in the barcode LED lamp bar；When light source turns
When axle rotates, each LED is rotated to the thang-kng passage of corresponding sample box, can be held not in the different sample boxs of sample cell
Same sample, by the rotation of the LED light bar of different wave length, switches to the light source of different wave length, and realize several samples
Multichannel is detected simultaneously.
In addition, the light-source system that the present invention is designed, the LED light bar of different wave length is connected in parallel by conducting slip ring, passed through
The LED light bar of different wave length is connected in parallel by conductive sliding ring rotor outlet, and corresponding conducting slip ring stator outlet is connected in parallel
In control mainboard；And by light source pivot design be hollow-core construction, connect LED light bar cable inside light source rotating shaft cabling,
Being reliably connected for movable part cable structure in rotating shaft and fixed part cable is realized by conducting slip ring, structure is attractive in appearance tight
Gather, while avoiding lamp bar cable knotting problem during axis of rotation.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present invention.
Fig. 2 is overall schematic of the present invention.
Fig. 3 is LED light bar wiring schematic diagram of the present invention.
Fig. 4 is course of work flow chart of the present invention.
Reference lists as follows：1- bases, 2- motors, 3- driving gears, 4- driven gears, 5- light source rotating shafts, 6- is led
Electric slip ring, 61- conductive sliding ring rotors, 62- conducting slip ring stators, 63- rotor outgoing lines, 64- stator outlets, 7- sample cells, 8- samples
Product box, 9- receivers, 10- receivers, 11, LED light bar, 12-LED lamp bars, 13- enters on optical channel, 14- photoelectric sensors, 15-
Lid.
Embodiment
Below by embodiment, the present invention is further illustrated.
As shown in Figure 1 and Figure 2, it is overall structure diagram of the embodiment of the present invention.A kind of multichannel multi-wavelength spectrum detection dress
Put, including light source, light source rotating shaft, rotating shaft drive device and sample cell；The light source includes multiple lists with longitudinal arrangement
The strip lamp bar of wavelength light source lamp, the single wavelength light source lamp of the present embodiment is Single wavelength LED, the LED light bar 11 of different wave length,
LED light bar 12 ... it is installed in circumferentially distributed in light source rotating shaft 5, the LED light bar of the different wave length of the present embodiment includes 8
Bar, is uniformly distributed around light source rotating shaft, and each lamp bar provides a kind of light source of wavelength；Sample cell 7 includes multiple longitudinal arrangements
In sample box 8, the present embodiment, sample cell 7 includes two row, is symmetricly set on the both sides of light source rotating shaft 5, and each column includes 8 samples
Box, can provide 16 sense channels altogether, and each sample box side has a thang-kng passage 13, the thang-kng passage of each sample box with
The position of 8 LEDs in LED light bar is adapted；The rotating shaft drive device includes motor 2, driving gear 3, driven gear
4, driven gear 4 and light source rotating shaft 5 are coaxially connected, and are engaged with driving gear 3, and driving gear 3 is arranged on the drive shaft of motor 2
On, drive light source rotating shaft 5 to rotate by driving gear 3 and driven gear 4 by motor 2, make the LED of the LED light bar of different wave length
Lamp, which is rotated to the sample box thang-kng passage, enters light side.The light extraction side of sample box is provided with receiver, for receiving
The spectral signal crossed after sample.In the present embodiment, including two row receivers 9,10, it is respectively arranged in the light extraction one of two row sample cells
Side, receiver is connected with control mainboard, and spectral signal is handled by control mainboard.
Also include photoelectric sensor 14, reference point is provided for rotating shaft rotational positioning；The photoelectric sensor and control mainboard
Connection, control mainboard controls the rotary speed and angle of rotating shaft, the angle provided according to photoelectric sensor by motor-drive circuit
Degree control reference point, the LED of the LED light bar of different wave length positions entering to the sample box thang-kng passage when rotating rotating shaft
Light side.Also include base 1 and upper lid 15, the two ends of light source rotating shaft 5 are fixed on two ends of base 1, and sample cell 7 can be symmetrical
Installed in base both sides；Motor 2 is arranged on the lower section of base 1, and conducting slip ring 6 and photoelectric sensor 14 are fixed on an end of base
Portion；Upper lid 15 is connected with base 1, it is ensured that the sealing of spectrum detection device.
The LED light bar of different wave length is connected in parallel by conducting slip ring 6, and Fig. 3 is LED light bar wiring schematic diagram of the present invention.
Conducting slip ring includes the conductive sliding ring rotor 61 and conducting slip ring stator 62 of coaxial package, the rotor outgoing line of conductive sliding ring rotor 61
63 are connected in parallel the LED light bar of different wave length, and the stator outlet 64 of corresponding conducting slip ring stator 62 is connected in control in parallel
On mainboard.In the present embodiment, light source rotating shaft 5 be hollow-core construction, connect LED light bar cable inside light source rotating shaft cabling, lead to
Crossing conducting slip ring 6 is reliably connected the movable part cable of parallel connection LED lamp bar and the realization of fixed part cable, is effectively prevented
Internal cable knots during axis of rotation.
As shown in figure 4, being course of work flow chart of the present invention.
1) cuvette that will be equipped with different samples is put into the different sample boxs of sample cell, by installing a row or two row
Sample cell, the sample cell of 8 sample boxs is included for each column, it is possible to achieve the detection configuration of 8 passages or 16 passages, is adapted to many
Plant the demand of sample detection；
2) rotated by the drive shaft 5 of motor-drive circuit controlled motor 2, LED light bar 11 of the selection with a certain wavelength,
The LED of LED light bar 11 is set to rotate entering on optical channel to sample box, what each LED was directed at sample box enters optical channel,
The Scanning Detction of the different samples of the wavelength is carried out, the step of completing scanning sample, gathered data；
3) rotating shaft 5 is controlled to rotate automatically by motor-drive circuit, LED light bar 12 of the selection with another wavelength makes LED
The LED of lamp bar 12 rotates entering on optical channel to sample box, and what each LED was directed at sample box enters optical channel, continuation
Complete scanning sample-gathered data flow of next wavelength；It is automatically performed the testing process of remaining wavelength successively again.
Thus by the LED light bar of sequential selection different wave length, the multiple light sources lamp of the Same Wavelength in same lamp bar can
Detection is scanned for multiple samples in each sample box；When rotating shaft 5 rotates, the illuminator of different wave length, pin may be selected
The illuminator of different wave length is can switch to each sample box, that is, realizes the light source by multi-wavelength, is scanned successively a variety of
The spectral detection function of the multi-wavelength multichannel of sample.
It is hereby stated that, it is described above to contribute to skilled artisan understands that the invention, but not limit the present invention
The protection domain of creation.It is any that equivalent substitution described above, modification are improved without departing from the invention substantive content
And/or the change of the implementation deleted numerous conform to the principle of simplicity and carried out, such as sense channel quantity, the change of light source and light source lamp bar quantity, this
A little simple variants belong to the protection domain of the invention.
Claims (10)
1. a kind of multichannel multi-wavelength light spectrum detection device, it is characterised in that including light source, light source rotating shaft, rotating shaft drive device
And sample cell；The light source includes the strip lamp bar of multiple single wavelength light source lamps with longitudinal arrangement, the light of different wave length
Source lamp bar is in be arranged on circumferentially distributedly in light source rotating shaft；The sample cell includes the sample box of multiple longitudinal arrangements, each sample
Product box side has thang-kng passage, and is adapted with the illuminator in the light source lamp bar；The rotating shaft drive device is used to make
The illuminator of the light source lamp bar of different wave length, which is rotated to the sample box thang-kng passage, enters light side.
2. multichannel multi-wavelength light spectrum detection device according to claim 1, it is characterised in that the rotating shaft drive device
Including motor, driving gear, driven gear, the driven gear and light source rotating shaft are coaxially connected, and are engaged with driving gear, institute
Driving gear is stated in the drive shaft of motor, drives light source rotating shaft to rotate by driving gear and driven gear by motor.
3. multichannel multi-wavelength light spectrum detection device according to claim 2, it is characterised in that also including photoelectric sensing
Device, the photoelectric sensor is connected with control mainboard, and the control mainboard controls the rotation speed of rotating shaft by motor-drive circuit
Degree and angle, the angle provided according to photoelectric sensor control reference point, the light source lamp bar of different wave length when rotating rotating shaft
Illuminator, which is positioned to the sample box thang-kng passage, enters light side.
4. the multichannel multi-wavelength light spectrum detection device according to one of claims 1 to 3, it is characterised in that the sample
The light extraction side of box is provided with receiver, for receiving through the spectral signal after sample；The receiver connects with control mainboard
Connect, spectral signal is handled by control mainboard.
5. multichannel multi-wavelength light spectrum detection device according to claim 4, it is characterised in that the single wavelength light source lamp
For Single wavelength LED.
6. multichannel multi-wavelength light spectrum detection device according to claim 5, it is characterised in that the different wave length
LED light bar is connected in parallel by conducting slip ring, and the conducting slip ring includes the conductive sliding ring rotor and conducting slip ring of coaxial package
The LED light bar of different wave length is connected in parallel by stator, conductive sliding ring rotor outlet, and corresponding conducting slip ring stator goes out line parallel company
It is connected in control mainboard.
7. multichannel multi-wavelength light spectrum detection device according to claim 6, it is characterised in that the light source rotating shaft is sky
Core structure, connect LED light bar cable inside light source rotating shaft cabling.
8. multichannel multi-wavelength light spectrum detection device according to claim 7, it is characterised in that the different wave length
LED light bar includes 8, is uniformly distributed around light source rotating shaft.
9. multichannel multi-wavelength light spectrum detection device according to claim 4, it is characterised in that the sample cell includes two
Row, are symmetricly set on the both sides of light source rotating shaft.
10. multichannel multi-wavelength light spectrum detection device according to claim 9, it is characterised in that also including base and upper
Lid, the two ends of the light source rotating shaft are fixed on the end of base, and base both sides are symmetrically installed sample cell；The motor is arranged on bottom
Seat lower section, the conducting slip ring and photoelectric sensor are fixed on the end of base；The upper lid is tightly connected with base, it is ensured that light
Spectrometer will not light leak.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710388995.7A CN107101945A (en) | 2017-05-26 | 2017-05-26 | A kind of multichannel multi-wavelength light spectrum detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710388995.7A CN107101945A (en) | 2017-05-26 | 2017-05-26 | A kind of multichannel multi-wavelength light spectrum detection device |
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| CN107101945A true CN107101945A (en) | 2017-08-29 |
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Cited By (2)
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| CN109812730A (en) * | 2019-01-29 | 2019-05-28 | 山东省科学院海洋仪器仪表研究所 | A kind of the low-power consumption wide spectrum LED light source and luminescent method of single-point continuous scanning |
| CN113310914A (en) * | 2021-04-20 | 2021-08-27 | 曲福光 | Multifunctional food safety detection equipment |
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