CN203551466U - Near infrared household food detection device - Google Patents
Near infrared household food detection device Download PDFInfo
- Publication number
- CN203551466U CN203551466U CN201320634146.2U CN201320634146U CN203551466U CN 203551466 U CN203551466 U CN 203551466U CN 201320634146 U CN201320634146 U CN 201320634146U CN 203551466 U CN203551466 U CN 203551466U
- Authority
- CN
- China
- Prior art keywords
- near infrared
- light emitting
- detecting device
- infrared ray
- optical filter
- 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
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides a near infrared household food detection device, which belongs to food detection devices utilizing optical absorption characteristics of organic food ingredients in near infrared spectral region. Near infrared rays emitted by a near infrared light emitting diode of the device are emitted in parallel after being collimated by a collimation objective lens and are focused on a detector by a focusing lens; a specimen holder is arranged above the position between an optical filter and the detector; the detector is provided with an interface connected to a computer; the position of the near infrared light emitting diode is adjusted to enable the near infrared rays emitted by the diode to be received by the detector; a sample to be detected is hung on the specimen holder; the optical filter is placed to obtain a detection result of the sample to be detected under a specific wavelength; finally, a detection result is analyzed through existing technology to obtain a detection conclusion. The near infrared household food detection device provided by the utility model not only perfects the filtering effect, but also has a detection function under different wavelengths and avoids the influence of a container loading the sample to be detected on a measurement result, and in addition, the near infrared household food detection device has good upgradeability and expansibility.
Description
Technical field
Near infrared ray domestic food pick-up unit belongs to and utilizes the food inspection device of food organic principle at the optical absorption characteristic near infrared spectrum region.
Background technology
Near-infrared detection device for food quality is the difference in the strongest absorbing wavelength of the optical absorption characteristic near infrared spectrum region, each composition according to various representational organic components in meat, edible wet goods food, and the proportional relation between absorption intensity and grain organic content, by to the known chemical analysis content of sample and its near infrared ray result regretional analysis, set up calibration equation, can estimate the unknown sample component content of same similar type.A little less than near-infrared absorption, in comparing, infrared and visible light wave range has stronger penetration capacity, therefore not only can see through thicker sample, realizes long light path mensuration, and without dilute sample, get final product the principal ingredient of direct working sample.
Early stage near infrared spectrum detects and is applied to agricultural byproducts, mostly by diffuse reflection technology, realizes.The signal intensity that diffuse reflection method is enough because needs have, and need to effectively collect scattered light, therefore there is the shortcoming of light channel structure complexity.This shortcoming has also just limited this food inspection device and mostly has been bench device, and is mainly used in the departments of collective such as office, enterprises and institutions, school.
Along with scientific and technological fast development, the continuous pursuit of people to quality of life, the especially current discomforting present situation of food security, makes the demand of food quality detection transfer to family from department of collective.But legacy equipment is bulky, expensive, a lot of families are hung back to food inspection equipment.
Utility model patent < < Domestic near-infrared detection device for food quality > > (application number: 201210013708.1) disclose a kind of home-use detection device for food quality.This device comprises near-infrared luminous light source, optical filter, Fresnel Lenses, sample cell, detecting device, lock-in amplifier and microprocessor; Wherein, the near infrared ray that near-infrared luminous light source sends by converting square-wave signal to after optical filter, Fresnel Lenses, sample cell, detecting device and lock-in amplifier, is processed in input microprocessor successively.This utility model has following four shortcomings:
The first, because optical filter is arranged in the middle of near-infrared luminous light source and Fresnel Lenses, cannot filtering Fresnel Lenses and sample cell between the impact of other wavelength veiling glare that may be subject to, make filter effect imperfection;
The second, in this utility model patent not openly the wavelength of optical filter be how many, being therefore interpreted as can only be through the light of a certain specific wavelength or wavelength coverage, if what see through is the light of some specific wavelengths, can not realizes under other wavelength and detecting; If what see through is the light of some particular range of wavelengths, within the scope of this, the light of each wavelength mixes, and the effect of detection is bad;
Three, the sample cell that this utility model adopts belongs to container, the impact that will certainly receive the optical property of container wall materials or composition when near infrared light sees through chamber wall, and this impact can be delivered in testing result, makes testing result not accurate enough;
Four, this utility model adopts dsp chip as processor, but after implant procedure, when not having professional to modify, detection method is all definite constant, is unfavorable for the upgrading of detection method and the expansion of equipment.
Summary of the invention
In order to address the above problem, the utility model has designed a kind of near infrared ray domestic food pick-up unit, than prior art, not only improved filter effect but also there is measuring ability under different wave length, the impact on measurement result of the container of simultaneously avoiding loading testing sample, also there is good upgradability and extendability in addition.
The purpose of this utility model is achieved in that
Near infrared ray domestic food pick-up unit, sets gradually near-infrared luminous diode, collimator objective, condenser lens, optical filter and detecting device along optical axis direction; The parallel outgoing after collimator objective collimation of the near infrared light of near-infrared luminous diode transmitting, then converge on detecting device through condenser lens; Described near-infrared luminous diode is arranged on the focal position of collimator objective, and described optical filter and top, detecting device centre position, be provided with specimen holder; Described detecting device is provided with the interface that connects computing machine.
Above-mentioned near infrared ray domestic food pick-up unit, described near-infrared luminous diode comprises a light emitting diode being arranged on optical axis, the wavelength of described light emitting diode is within the scope of 900nm ~ 1000nm.
Above-mentioned near infrared ray domestic food pick-up unit, described near-infrared luminous diode comprises multiple light emitting diodes, equidistantly be distributed on the disk vertical with optical axis, described disk is at its place Plane Rotation, rotating shaft is parallel with optical axis, and described light emitting diode equals the distance of optical axis to rotating shaft to the distance of rotating shaft.
Near-infrared wavelength difference, power that described multiple light emitting diodes send are identical or wavelength is identical, power is different.
Above-mentioned near infrared ray domestic food pick-up unit, the wavelength of described optical filter is seven kinds of 800nm, 850nm, 900nm, 950nm, 1000nm, 1050nm and 1100nm.
Above-mentioned near infrared ray domestic food pick-up unit, is provided with clamp and hook on described specimen holder.
Due to the utility model near infrared ray domestic food pick-up unit, by optical filter is placed between condenser lens and detecting device, avoid the parasitic light of other wavelength of condenser lens reflection or refraction, improved filter effect; By optical filter, the realization of setting different wave length, there is the measuring ability under different wave length, make measurement result abundanter, more perfect; By the sample cell of prior art is replaced with to specimen holder, make light direct irradiation sample, avoid the impact of sample cell sidewall optical property on measurement result, improve the accuracy of measurement result; By the interface being connected with computing machine is set, realize the computing machine processing of data, make this equipment there is good upgradability and extendability.
Accompanying drawing explanation
Fig. 1 is the near infrared ray domestic food structure of the detecting device schematic diagram of the utility model specific embodiment one.
Fig. 2 is the near infrared ray domestic food structure of the detecting device schematic diagram of the utility model specific embodiment two and three.
Fig. 3 is the utility model near infrared ray domestic food detection method process flow diagram.
In figure: 1 near-infrared luminous diode, 2 collimator objectives, 3 condenser lenses, 4 optical filters, 5 detecting devices, 6 specimen holders, 7 disks.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Specific embodiment one
As shown in Figure 1, this device sets gradually near-infrared luminous diode 1, collimator objective 2, condenser lens 3, optical filter 4 and detecting device 5 along optical axis direction to the near infrared ray domestic food structure of the detecting device schematic diagram of the present embodiment; The near infrared light that near-infrared luminous diode 1 is launched parallel outgoing after collimator objective 2 collimations, then converge on detecting device 5 through condenser lens 3; Described near-infrared luminous diode 1 is arranged on the focal position of collimator objective 2, and described optical filter 4 and detecting device 5 tops, centre position, be provided with specimen holder 6; Described detecting device 5 is provided with the USB interface that connects computing machine, and is connected with computing machine by USB line.
Above-mentioned near infrared ray domestic food pick-up unit, described near-infrared luminous diode 1 comprises a light emitting diode being arranged on optical axis, the wavelength of described light emitting diode is within the scope of 900nm ~ 1000nm; The wavelength of described optical filter 4 is seven kinds of 800nm, 850nm, 900nm, 950nm, 1000nm, 1050nm and 1100nm; On described specimen holder 6, be provided with clamp and hook.
As shown in Figure 3, the method comprises the following steps the near infrared ray domestic food detection method process flow diagram of the present embodiment:
Step a, adjust near-infrared luminous diode 1 position, its near infrared light sending is received by detecting device 5;
Step b, on specimen holder 6, hang detected sample;
Step c, by place optical filter 4, obtain the testing sample testing result under specific wavelength; Be specially: the optical filter 4 of a wavelength of every placement, obtain one group of testing result, after seven groups of optical filters 4 have been placed, obtain seven groups of testing results;
Steps d, utilize prior art to analyze testing result, draw test result.
Specific embodiment two
As shown in Figure 2, this device sets gradually near-infrared luminous diode 1, collimator objective 2, condenser lens 3, optical filter 4 and detecting device 5 along optical axis direction to the near infrared ray domestic food structure of the detecting device schematic diagram of the present embodiment; The near infrared light that near-infrared luminous diode 1 is launched parallel outgoing after collimator objective 2 collimations, then converge on detecting device 5 through condenser lens 3; Described near-infrared luminous diode 1 is arranged on the focal position of collimator objective 2, and described optical filter 4 and detecting device 5 tops, centre position, be provided with specimen holder 6; Described detecting device 5 is provided with the USB interface that connects computing machine, and is connected with computing machine by USB line.
Above-mentioned near infrared ray domestic food pick-up unit, described near-infrared luminous diode 1 comprises four light emitting diodes, equidistantly be distributed on the disk vertical with optical axis 7, described disk 7 is at its place Plane Rotation, rotating shaft is parallel with optical axis, and described light emitting diode equals the distance of optical axis to rotating shaft to the distance of rotating shaft.
The wavelength of described optical filter 4 is seven kinds of 800nm, 850nm, 900nm, 950nm, 1000nm, 1050nm and 1100nm; On described specimen holder 6, be provided with clamp and hook; Near-infrared wavelength difference, power that described multiple light emitting diodes send are identical, and the reason of selecting is like this to match with optical filter 4 by the near-infrared luminous diode 1 of different wave length, can obtain better filter effect.
As shown in Figure 3, the method comprises the following steps the near infrared ray domestic food detection method process flow diagram of the present embodiment:
Step a, adjust near-infrared luminous diode 1 position, its near infrared light sending is received by detecting device 5; Be specially: rotating circular disk 7, makes the light emitting diode of required wavelength be positioned at optical axis position;
Step b, on specimen holder 6, hang detected sample;
Step c, by place optical filter 4, obtain the testing sample testing result under specific wavelength; Be specially: place the optical filter 4 corresponding with light emitting diode wavelength, if the wavelength of light emitting diode is 850nm ± 10nm, place the optical filter 4 of 850nm;
Steps d, utilize prior art to analyze testing result, draw test result.
Specific embodiment three
As shown in Figure 2, this device sets gradually near-infrared luminous diode 1, collimator objective 2, condenser lens 3, optical filter 4 and detecting device 5 along optical axis direction to the near infrared ray domestic food structure of the detecting device schematic diagram of the present embodiment; The near infrared light that near-infrared luminous diode 1 is launched parallel outgoing after collimator objective 2 collimations, then converge on detecting device 5 through condenser lens 3; Described near-infrared luminous diode 1 is arranged on the focal position of collimator objective 2, and described optical filter 4 and detecting device 5 tops, centre position, be provided with specimen holder 6; Described detecting device 5 is provided with the USB interface that connects computing machine, and is connected with computing machine by USB line.
Above-mentioned near infrared ray domestic food pick-up unit, described near-infrared luminous diode 1 comprises four light emitting diodes, equidistantly be distributed on the disk vertical with optical axis 7, described disk 7 is at its place Plane Rotation, rotating shaft is parallel with optical axis, and described light emitting diode equals the distance of optical axis to rotating shaft to the distance of rotating shaft.
The wavelength of described optical filter 4 is seven kinds of 800nm, 850nm, 900nm, 950nm, 1000nm, 1050nm and 1100nm; On described specimen holder 6, be provided with clamp and hook; Near-infrared wavelength that described multiple light emitting diodes send is identical, power is different, the reason of selecting is like this can be by selecting the light emitting diode of different capacity, be suitable for the testing sample that transmitance is different, increase the measurement sample type of the utility model device.
As shown in Figure 3, the method comprises the following steps the near infrared ray domestic food detection method process flow diagram of the present embodiment:
Step a, adjust near-infrared luminous diode 1 position, its near infrared light sending is received by detecting device 5; Be specially: rotating circular disk 7, makes the light emitting diode of power demand be positioned at optical axis position;
Step b, on specimen holder 6, hang detected sample;
Step c, by place optical filter 4, obtain the testing sample testing result under specific wavelength;
Steps d, utilize prior art to analyze testing result, draw test result.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (6)
1. near infrared ray domestic food pick-up unit, is characterized in that setting gradually near-infrared luminous diode (1), collimator objective (2), condenser lens (3), optical filter (4) and detecting device (5) along optical axis direction; The parallel outgoing after collimator objective (2) collimates of the near infrared light of near-infrared luminous diode (1) transmitting, then pass through condenser lens (3) and converge on detecting device (5); Described near-infrared luminous diode (1) is arranged on the focal position of collimator objective (2), and described optical filter (4) and top, detecting device (5) centre position, be provided with specimen holder (6); Described detecting device (5) is provided with the interface that connects computing machine.
2. near infrared ray domestic food pick-up unit according to claim 1, it is characterized in that described near-infrared luminous diode (1) comprises a light emitting diode being arranged on optical axis, the wavelength of described light emitting diode is within the scope of 900nm ~ 1000nm.
3. near infrared ray domestic food pick-up unit according to claim 1, it is characterized in that described near-infrared luminous diode (1) comprises multiple light emitting diodes, equidistantly be distributed on the disk vertical with optical axis (7), described disk (7) is at its place Plane Rotation, rotating shaft is parallel with optical axis, and described light emitting diode equals the distance of optical axis to rotating shaft to the distance of rotating shaft.
4. near infrared ray domestic food pick-up unit according to claim 3, is characterized in that near-infrared wavelength difference, power that described multiple light emitting diodes send are identical or wavelength is identical, power is different.
5. near infrared ray domestic food pick-up unit according to claim 1, the wavelength that it is characterized in that described optical filter (4) is seven kinds of 800nm, 850nm, 900nm, 950nm, 1000nm, 1050nm and 1100nm.
6. near infrared ray domestic food pick-up unit according to claim 1, is characterized in that being provided with clamp and hook on described specimen holder (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634146.2U CN203551466U (en) | 2013-10-15 | 2013-10-15 | Near infrared household food detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320634146.2U CN203551466U (en) | 2013-10-15 | 2013-10-15 | Near infrared household food detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551466U true CN203551466U (en) | 2014-04-16 |
Family
ID=50469564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320634146.2U Expired - Fee Related CN203551466U (en) | 2013-10-15 | 2013-10-15 | Near infrared household food detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551466U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487400A (en) * | 2013-10-15 | 2014-01-01 | 无锡艾科瑞思产品设计与研究有限公司 | Near infrared household food detection device and method |
| CN103926216A (en) * | 2014-04-24 | 2014-07-16 | 江西农业大学 | Method and device for rapidly detecting trans-fatty acids in edible vegetable oil |
| CN105372438A (en) * | 2015-12-02 | 2016-03-02 | 张会妮 | Food detection device and detection method |
| CN106441803A (en) * | 2015-08-04 | 2017-02-22 | 苏州奔腾塑业有限公司 | Product detection device |
-
2013
- 2013-10-15 CN CN201320634146.2U patent/CN203551466U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487400A (en) * | 2013-10-15 | 2014-01-01 | 无锡艾科瑞思产品设计与研究有限公司 | Near infrared household food detection device and method |
| CN103926216A (en) * | 2014-04-24 | 2014-07-16 | 江西农业大学 | Method and device for rapidly detecting trans-fatty acids in edible vegetable oil |
| CN106441803A (en) * | 2015-08-04 | 2017-02-22 | 苏州奔腾塑业有限公司 | Product detection device |
| CN105372438A (en) * | 2015-12-02 | 2016-03-02 | 张会妮 | Food detection device and detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203551466U (en) | Near infrared household food detection device | |
| US9857287B2 (en) | Particulate sensor device | |
| CN103487396B (en) | Near infrared sugar degree the cannot-harm-detection device that a kind of illumination parameter is adjustable | |
| CN103472011A (en) | Portable fruit internal-quality detection device using optical detector | |
| JP2014518390A5 (en) | ||
| CN201852788U (en) | Portable fluorescence detector | |
| EP3230716B1 (en) | Self-triggered flow cytometer | |
| CN103529006A (en) | Portable fluorescence detection device based on micro-fluidic chip and detection method thereof | |
| JP2021105616A (en) | Optical detection systems, and methods of using the same | |
| CN103487400A (en) | Near infrared household food detection device and method | |
| CN104007084A (en) | Near-infrared diffuse-reflection rapid nondestructive testing apparatus for organophosphorus pesticide residues | |
| CN102564997A (en) | Domestic near-infrared detection device for food quality | |
| CN106018330A (en) | Pocket-type near-infrared spectrometer | |
| CN106768326A (en) | A kind of device and its detection method for detecting LED white light spectral qualities | |
| CN103712949A (en) | Photo-thermal absorption spectrum technology-based cooking oil detection method and photo-thermal absorption spectrum technology-based cooling oil detection device | |
| CN105979871A (en) | Non-invasive system and method for measuring a substance concentration | |
| CN106404680A (en) | Device and method for field quick on-site detection of citrus huanglongbing | |
| RU2721896C2 (en) | Method and apparatus for detecting presence of mycotoxins in cereals | |
| CN202471589U (en) | Spectrometer | |
| CN107389566A (en) | It is a kind of to be used to collect the device that sample diffuses in spectrometer | |
| CN204008454U (en) | Portable near infrared spectrometer for detection of mould index in storage paddy | |
| CN101871992A (en) | Alternating current measuring device for quantum efficiency of solar battery and using method thereof | |
| CN203643328U (en) | Edible oil detection device based on photo-thermal absorbing spectrum technique | |
| CN103528970A (en) | Light path system in portable near-infrared analyzer | |
| CN101893679A (en) | Direct-current measuring device for quantum efficiency of solar cell and using method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20191015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |