CN206292170U - Article based on Raman spectrum checks equipment - Google Patents

Abstract

Equipment is checked this application discloses a kind of article based on Raman spectrum.The article checks that equipment includes：Laser, for launching laser；Optical directory means, for by the laser aiming to measured object and collect the Raman diffused light from measured object；Spectrum generating means, for receive by optical directory means collect Raman diffused light and generate raman spectral signal；Spectral analysis device, for being analyzed to draw inspection result to the raman spectral signal；And supervising device, for monitoring the state of measured object and according to the state of measured object controlling article inspection operation.Above-mentioned article based on Raman spectrum checks that equipment can be by improving the reliability and accuracy of article inspection operation to the monitoring of detection process.

Description

Article based on Raman spectrum checks equipment

Technical field

The utility model is related to Raman spectrum detection technique, more particularly to a kind of article inspection based on Raman spectrum to set It is standby.

Background technology

In recent years, Raman spectrum analysis technology is widely used in the field such as dangerous material inspection and Object Classification. Field wherein is checked in dangerous material, because terrorist is more and more various for the means of the violence terrorist activity of public place Change, various hazardous chemicals turn into one of main crime means of terrorist.It is reply such case, safety check mechanism is conventional On the basis of the luggage parcel safety inspection for carrying out, the inspection requirements to hazardous chemical is increased；Additionally, in Object Classification neck Domain, due to the color, different of various materials, people generally cannot accurately judge thing qualitative attribution, and Raman spectrum is by quilt The molecular entergy level structures shape of thing is examined, thus Raman spectrum can be as " fingerprint " information of material, for Object Classification.Therefore draw Graceful spectral analysis technique is widely used in fields such as customs, public safety, food and medicine, environment.

In the application field of Raman spectrum analysis technology, because checking matter varies, the physical characteristic meeting of various materials There is difference, they have difference for the heat sensitivity that the laser for Raman spectrum analysis technology irradiates.And existing Raman light Spectrometer device does not provide the function being monitored for the detection process of Raman spectrum still.

Utility model content

The purpose of this utility model is to provide a kind of article based on Raman spectrum and checks equipment, and it can be for detecting Journey is monitored, and the state especially for measured object is monitored to improve the reliability that article checks equipment.

Embodiment of the present utility model provides a kind of article based on Raman spectrum and checks equipment, including：

Laser, for launching laser；

Optical directory means, for by the laser aiming to measured object and collect the Raman scattering from measured object Light；

Spectrum generating means, for receive by optical directory means collect Raman diffused light and generate Raman spectrum believe Number；

Spectral analysis device, for being analyzed to draw inspection result to the raman spectral signal；And

Supervising device, for monitoring the state of measured object and according to the state of measured object controlling article inspection operation.

In one embodiment, the supervising device includes：

Information acquisition unit, described information acquiring unit is configured to obtain the status information of measured object；

Control unit, described control unit is configured to the status information based on the measured object to start or stop article inspection Look into operation.

In one embodiment, described information acquiring unit includes shooting unit, and the shooting unit is configured to measured object Detected part shot to obtain the colouring information of the detected part as the status information of measured object.

In one embodiment, described control unit is configured to stop thing when the color of the detected part is predetermined color Product inspection operation.

In one embodiment, described information acquiring unit includes temperature measurement unit, and the temperature measurement unit is configured to The temperature of the measured object is measured in article inspection operation.

In one embodiment, described control unit is configured to exceed in the amplitude or change slope of the temperature of the measured object Stop article inspection operation during predetermined threshold value.

In one embodiment, the temperature measurement unit includes infrared temperature measurement apparatus.

In one embodiment, described information acquiring unit also includes that laser irradiates dangerous discernment unit, the laser irradiation Dangerous discernment unit is configured to whether identification non-irradiated object is fallen into by laser or the region that will be irradiated with a laser.

In one embodiment, the non-irradiated object includes the face of people.

In one embodiment, the supervising device also includes recording unit, and the recording unit is configured to record the quilt Survey the material picture of thing.

In one embodiment, the article inspection operation includes sending laser with laser.

In one embodiment, the article based on Raman spectrum checks that equipment also includes weight identifying device, for root Article is distinguished according to the weight of measured object.

In one embodiment, the weight identifying device includes：

Weighing unit, measures for the weight to measured object；

Memory cell, the database for storing predetermined referential weight and corresponding bar code；

Comparing unit, for the weight of measured measured object and the referential weight to be compared with determination and institute Bar code corresponding to the immediate referential weight of weight of the measured object for measuring；And

Output unit, exports identified bar code as weight recognition result.

Above-mentioned at least one embodiment of the present utility model can be improved based on Raman by the monitoring to detection process The article of spectrum checks the reliability and accuracy of apparatus and method.

Brief description of the drawings

Fig. 1 shows to check the structural representation of equipment according to the article based on Raman spectrum of embodiment of the present utility model Figure；

Fig. 2 shows the spectrum analysis in the article inspection equipment based on Raman spectrum according to embodiment of the present utility model The module diagram of device；

Fig. 3 shows the weight identification in the article inspection equipment based on Raman spectrum according to embodiment of the present utility model The module diagram of device；And

Fig. 4 shows the flow chart of the article inspection method based on Raman spectrum according to embodiment of the present utility model；

Fig. 5 shows the schematic diagram that equipment is checked according to the article based on Raman spectrum of the embodiment of the utility model one；

Fig. 6 shows the signal that equipment is checked according to the article based on Raman spectrum of another embodiment of the utility model Figure；

Fig. 7 shows the signal that equipment is checked according to the article based on Raman spectrum of the another embodiment of the utility model Figure；

Fig. 8 shows the signal that equipment is checked according to the article based on Raman spectrum of the utility model another embodiment Figure；

Fig. 9 shows the signal that equipment is checked according to the article based on Raman spectrum of another embodiment of the utility model Figure；

Figure 10 shows the monitoring side that equipment is checked according to the article based on Raman spectrum of the embodiment of the utility model one The flow chart of method；And

Figure 11 shows the signal that equipment is checked according to the article based on Raman spectrum of another embodiment of the utility model Figure.

Specific embodiment

Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail. In specification, same or analogous drawing reference numeral represents same or analogous part.It is following referring to the drawings to the utility model reality The explanation for applying mode is intended to explain overall utility model design of the present utility model, and is not construed as to this practicality A kind of new limitation.

Fig. 1 schematically shows a kind of article inspection based on Raman spectrum according to an embodiment of the present utility model and sets Standby 100.The article checks that equipment 100 includes：Laser 10, for launching laser；Optical directory means 20, for swashing described Light is directed on measured object 60 and collects the Raman diffused light from measured object 60；Spectrum generating means 30, for receiving by light Learn the Raman diffused light of the collection of guide 20 and generate raman spectral signal；Spectral analysis device 40, for the Raman Spectral signal is analyzed to draw inspection result；And supervising device 50, for monitoring the state of measured object 60 and according to quilt The state of thing 60 is surveyed to control article inspection operation.

Because Raman spectrum analysis technical applications are very wide, therefore its detection object varies, and may have difference Physical characteristic, they for for Raman spectrum analysis technology laser irradiate heat sensitivity have difference.Some materials There is a possibility that to light in laser irradiation process, burn and even produce the danger such as blast.Before being detected, often simultaneously The characteristic of measured object can not be determined clearly, therefore, for security consideration, the article inspection in embodiment of the present utility model sets Standby 100 are provided with supervising device 50.The supervising device 50 can monitor the state of measured object 60.When the state for finding measured object 60 When abnormal, the supervising device 50 can in time stop article and check the operation of equipment 100 to prevent from causing danger or draw Incorrect testing result.

In one example, supervising device 50 can include：Control unit 51 and information acquisition unit 52.Described information is obtained Unit 52 is configured to obtain the status information of measured object 60, and described control unit 51 is configured to the state based on the measured object 60 Information starts or stops article inspection operation.As an example, the status information of measured object 60 can be the portion to be measured of measured object The colouring information of position, correspondingly, described information acquiring unit 52 can include shooting unit 53, and the shooting unit 53 can be configured The detected part of paired measured object 60 is shot to obtain the colouring information of the detected part.As an example, working as portion to be measured When the color of position is black, often means that the detected part is passed through and burn, therefore, when shooting unit 53 photograph it is described When the color of detected part is black, control unit 51 can be configured to stop article inspection operation, for example, stop laser hair Penetrate laser etc..As an example, shooting unit 53 can be including the shooting instrument known in the art such as camera or camera.Shoot Unit 53 can obtain the wholly or partially image of measured object, obtain the status informations such as color, the shape of measured object.Should manage Solution, although above-mentioned to be described as an example with black, but embodiment not limited to this of the present utility model, for example, control The color that unit 51 can also be configured to photograph the detected part in shooting unit 53 is other predetermined colors or various face Stop article inspection operation during the combination of color.

In one example, described information acquiring unit 52 includes temperature measurement unit 54, and the temperature measurement unit 54 is matched somebody with somebody It is set to the temperature that the measured object 60 is measured in article inspection operation.By temperature measurement unit 54, measured object can be measured 60 temperature under laser irradiation, and then can monitor whether the amplitude or ramp-up rate (change slope) of the temperature exceed in advance Fixed threshold value.The operating temperature that the threshold value can be allowed according to the material of specific measured object and optical directory means is come really Fixed, such as threshold value of temperature amplitude can be 80 degree or 100 degree, and the threshold value of temperature change slope can be 10 degrees seconds etc..As Example, when the amplitude or change slope of the temperature exceed predetermined threshold value, often means that measured object is present and is ignited, burns The danger burnt or explode.Then, as an example, control unit 51 can be configured to the temperature of the measured object 60 amplitude or Change slope stops article inspection operation when exceeding predetermined threshold value, for example, stop laser transmitting laser etc..As an example, warm Degree measuring unit 54 can include one or more infrared temperature measurement apparatus, it is also possible to be surveyed including other temperature known in the art Amount device.As an example, temperature measurement unit 54 can be measured using cordless to temperature, it would however also be possible to employ contact Mode is measured to temperature.

In one example, described information acquiring unit 52 can also include laser irradiation dangerous discernment unit 55.It is described to swash Light irradiation dangerous discernment unit 55 can be configured to whether identification non-irradiated object is fallen into by laser or the area that will be irradiated with a laser In domain.For example, laser irradiation dangerous discernment unit 55 can be the camera head that can be identified to non-irradiated object.As Example, the non-irradiated object includes the face of people, or even human eye.In one example, laser irradiation dangerous discernment unit 55 can In whether the region that may be irradiated with a laser being dropped into the face or human eye of monitor, once the face or human eye of finder fall Enter in the region that may be irradiated with a laser, control unit 51 will immediately stop article inspection operation, for example, stop laser hair Laser etc. is penetrated, to avoid causing danger.

In the above-described embodiments, described information acquiring unit 52 can include shooting unit 53, the and of temperature measurement unit 54 Any one of laser irradiation dangerous discernment unit 55, it is also possible to any combination including them.As an example, described information is obtained Taking unit 52 can include one or more camera heads.As an example, shooting unit 53 and laser irradiation dangerous discernment list Unit 55 can also be realized by same camera head.Shooting unit 53, temperature measurement unit 54 and laser irradiation dangerous discernment list Unit any one of 55 or a both of which can be integrated with spectral analysis device 40.As an example, according to of the present utility model The article of embodiment can set one or more lasers 10, one or more spectrum generation dress in checking equipment 100 Put 30 (such as spectrometers), one or more light path guides 20.

In one example, the supervising device 50 can also include recording unit 56, and the recording unit 56 is configured to note Record the material picture of the measured object 60.By means of the recording unit 56, can be by the material of Raman spectrum analysis technology for detection The material pictures such as information and the face shaping of measured object are recorded simultaneously, are easy to be collected evidence in practical application, information record With transmission etc..

As an example, optical directory means 20 can include being formed by discrete optical element combination, or can be by optical fiber Probe is formed.Spectrum generating means 30 can for example be realized that spectral analysis device 40 for example can be by data by spectrometer Manage device (such as computer, microprocessor) to realize, it is also possible to realized by the spectrometer with data processing function. In one example, spectral analysis device 40 can be included for storing with reference to the memory cell in Raman spectrum storehouse, for that will detect Raman spectral signal and the material group that article is compared to determine with reference to the reference raman spectral signal in Raman spectrum storehouse Into comparing unit and the output unit that exports the comparison result of comparing unit.As an example, in spectral analysis device 40 In memory cell in can also store with reference to each in Raman spectrum storehouse with reference to the corresponding bar shaped of raman spectral signal Code, comparing unit can determine the reference raman spectral signal matched with the raman spectral signal for detecting in comparison process Corresponding bar code information, and output unit can also be by bar code one of as a result output.

As an example, from physically considering, as shown in Fig. 2 spectral analysis device 40 can include：Gathered data is deposited Reservoir 41, read-only storage (ROM) 42, random access memory (RAM) 43, internal bus 44, input unit 45, processor 46 With display device 47.Acquired data storage device 41 is used to store the Raman light collected from spectrum generating means 30 (such as spectrometer) Spectrum signal data, read-only storage 42 is used to store the configuration information and journey of spectral analysis device 40 (such as data processing equipment) Sequence, random access memory 43 is used to keep in various data in the course of work of processor 46, input unit 45 (such as button, Sensor, keyboard and mouse etc.) it is used for by user input operational order, processor 46 is used to perform data processing operation, shows Device 47 is used to export result of calculation.In addition, can also be stored with for carrying out data processing in acquired data storage device 41 Computer program.The connection acquired data storage of internal bus 44 device 41, read-only storage 42, random access memory 43, input Device 45, processor 46 and display device 47.

In user by after the operational order that input unit 45 is input into, the instruction code command process in the computer program Device performs predetermined data processing algorithm, after data processed result is obtained, including showing dress in LCD display etc. Put on 47, or directly export result in the form of a hard copy.

In one embodiment, the article based on Raman spectrum checks that equipment 100 can also include weight identifying device 70, distinguish article for the weight according to measured object 60.As an example, as shown in figure 3, weight identifying device 70 can be wrapped Include：Weighing unit 71, measures for the weight to measured object 60；Memory cell 72, for storing predetermined referential weight With the database of corresponding bar code；Comparing unit 73, for by the weight of measured measured object 60 and the ginseng Weight is examined to compare to determine and the bar code corresponding to the immediate referential weight of the weight of measured measured object；With And output unit 74, exported identified bar code as weight recognition result.

By means of weight identifying device 70, operator can determine thing by Raman spectrum analysis and gravimetric analysis come comprehensive The material composition of product, so as to improve the reliability and accuracy of article inspection result.

As an example, weight identifying device 70 and spectral analysis device 40 can be by same data processing equipments (as calculated Machine, microprocessor etc.) to realize, it is also possible to each freedom different data processing equipment is realized.

As an example, the control unit 51 in supervising device 50 can also be with weight identifying device 70 or spectral analysis device 40 are realized by same data processing equipment (such as computer, microprocessor, embedded system), it is also possible to recognized by with weight Device 70 data processing equipment mutually independent with spectral analysis device 40 is realized.

Embodiment of the present utility model additionally provides a kind of article inspection method based on Raman spectrum, including：

Whether the state for monitoring measured object is normal to determine the state of measured object；

If measured object state normally if start laser transmitting laser irradiation measured object and collection from measured object Raman diffused light is detected with the Raman spectrum to measured object, if the state of measured object is abnormal, stops laser hair Penetrate laser and interrupt detection.

In one example, the state of the measured object includes the color of measured object, the abnormal bag of state of the measured object The color of measured object is included for predetermined color (such as the combination of black or other colors or multiple color), the state of the measured object The normal color including measured object is the color (such as non-black) in addition to the predetermined color.

In one example, the article inspection method based on Raman spectrum can also include：If the state of measured object It is normal then start the real-time monitoring to the temperature of measured object in detection process, and once find measured object temperature exceed it is predetermined Threshold value then stop laser transmitting laser and interrupt detection.

In one example, the article inspection method based on Raman spectrum can also include：The Raman light that will be detected Compose and compare with reference Raman spectrum and export comparison result.

As an example, the article inspection method based on Raman spectrum can also include：Entirety or office to measured object Portion is imaged to form material picture and record the material picture.This can be by the material of Raman spectrum analysis technology for detection The material pictures such as information and the face shaping of measured object are recorded simultaneously, are easy to be collected evidence in practical application, information record With transmission etc..

The article based on Raman spectrum according to embodiment of the present utility model checks that apparatus and method can effectively be entered Row Object Classification and policer operation process are particularly suited for checking dangerous material to improve the security of inspection.

Fig. 5 to show and check that the structure of equipment 300 is shown according to the article based on Raman spectrum of the utility model embodiment It is intended to.The article based on Raman spectrum checks that equipment 300 includes：Laser 310, for launching exciting light 311；Optics is filled 320 are put, for guiding the exciting light 311 to testing sample 330 and collecting the optical signal from the testing sample 330； Spectrometer 340, for carrying out light splitting to generate the Raman spectrum of testing sample 330 to the optical signal for receiving；And safety detection Device 350, for detecting the infrared light 331 that the testing sample 330 sends.As an example, treating test sample by what spectrometer 340 was generated The Raman spectrum of product 330 can be compared to determine the composition of testing sample 330 with the Raman spectrum of known substance.This compares For example can be completed by computer or processor.

During Raman detection, safety problem is produced to cause temperature to rise often caused by sample heat absorption, and then have can Can cause the ablation to measured object, or even produce the phenomenon such as ignite, ignite.And in embodiment of the present utility model, employ Area network safety detector (such as Infrared Detectors) 350 detects the infrared light 331 that the testing sample 330 sends, and can monitor and treat The temperature of test sample product 30.This is increased due to when the rising of sample temperature, being usually associated with the emittance of infrared light.And lead to The monitoring of emittance for infrared light is crossed just it can be found that the temperature variations of testing sample 330, so as to avoid the occurrence of Security incident.

In one example, as shown in fig. 6, Optical devices 320 can include Raman light signal collection light path 321, for receiving Raman optical signal of the collection from the testing sample 330.First point is provided with the Raman light path signal collection light path 321 Light microscopic 322, first spectroscope 322 is arranged to form infra-red radiation branch road from Raman light path signal collection light path 321 323, the infrared light in the light from testing sample 330 is guided towards area network safety detector 350.The energy of first spectroscope 322 Enough infrared lights for sending testing sample 330 are extracted from Raman light path signal collection light path 321, can be in not shadow of trying one's best Infrared light is detected in the case of ringing Raman optical signal.As an example, the first spectroscope 322 requires do not influenceing to draw as far as possible Graceful light (usually 0-3000cm^-1Scope) on the premise of, as far as possible by the infrared light reflection of area network safety detector response wave band to safety Detector.It is of course also possible to the treatment such as waveband selection, convergence is carried out to the infrared light in infra-red radiation branch road 323 as needed.

In the examples described above, the light path that the light path and Raman light that infrared light is passed through are passed through (is close to and treats test sample in front end One end of product 330) it is identical, the infrared light collected by this way can preferably embody the actual temperature of testing sample 30 Degree.

As an example, the first spectroscope 322 is short logical dichroscope, the short logical dichroscope is arranged to be more than wavelength The light of predetermined wavelength reflects towards area network safety detector 350, and makes wavelength less than the light transmission of the predetermined wavelength by described short logical Dichroscope.For example, between the predetermined wavelength can be with 700 nanometers to 300 microns, such as between 900 nanometers to 1500 nanometers, Such as predetermined wavelength can be set to 1200 nanometers.But the predetermined wavelength of the short logical dichroscope in embodiment of the present utility model Not limited to this scope.Generally, based on the wavelength of the Raman spectrum handled by the spectrometer in the article inspection equipment of Raman spectrum Scope is 550 to 900 nanometers.Wavelength is shorter than the light of the predetermined wavelength, and can be transmitted through the short logical dichroscope (such as saturating The rate of penetrating can be more than 90%), influence there is no on Raman spectrum detection, the light that wavelength is longer than the predetermined wavelength can be with It is reflected in infra-red radiation branch road and is transferred to area network safety detector 350.And corresponding infrared light will be received by area network safety detector Analysis.And typical area network safety detector response wave band is, for example, 1500 to 3000 nanometers.But embodiment of the present utility model is not limited In this.

Although in the examples described above, being introduced for the first spectroscope 322 with short logical dichroscope, this is not must Must, it would however also be possible to employ any other wavelength known in the art selects light splitting part to realize the first spectroscope 322.

In one example, the exemplary article based on Raman spectrum as shown in Figure 6 checks equipment 300b, Raman light letter Number collect light path 321 in can be additionally provided with the first convergent lens 324, the second convergent lens 341 and the second spectroscope 325.Institute Stating the first convergent lens 324 is used to that exciting light 311 to be converged into testing sample 330 and the light letter from testing sample 330 is collected Number.The optical signal that second convergent lens 341 is used to collect converges to spectrometer.Second spectroscope 325 is in the drawing Graceful optical signal is located between the first convergent lens 324 and the first spectroscope 322 in collecting light path 321, is arranged for coming from In the exciting light 311 of laser 310 reflected to the first convergent lens 324 and make by the first convergent lens 324 collect from treating At least a portion of the reflected light of test sample product 330 is transmitted through with the first spectroscope 322 or the second convergent lens described in directive 341.In this example, the light path and Raman light signal collection light path 321 that exciting light 311 is directed on testing sample 330 exist It is to overlap from the part between the second spectroscope 325 and testing sample 330.And in the optical path, the first spectroscope 322 is located at the The downstream of two spectroscopes 325, can avoid the interference for light path front end.

As an example, the position of the first spectroscope 322 and the second spectroscope 325 in Fig. 6 can exchange.For example, as schemed Shown in 11, in Raman spectrum testing equipment 300b ', the second spectroscope 325 is in the middle position of Raman light signal collection light path 321 Between the first spectroscope 322 and the second convergent lens 341.

As an example, second spectroscope 325 can be logical dichroscope long, i.e., wavelength is only allowed to be longer than certain threshold value Light transmission pass through, and wavelength is shorter than the photo-electric switch of the threshold value.The advantage of the program is that can weaken from testing sample 330 Reyleith scanttering light.Testing sample 330 will also tend to produce wavelength less than the Reyleith scanttering light of Raman light while Raman light is produced, And the threshold value of logical dichroscope long can be arranged to weaken the even shorter Reyleith scanttering light of elimination wavelength, so as to improve Raman light letter Number signal to noise ratio.The specific threshold value of logical dichroscope long can be selected according to the requirement of actual measurement.The utility model Embodiment in, the second spectroscope 325 is not limited to dichroscope long logical, for example, can also use known in the art any other Light splitting part realizes the second spectroscope 325.

In one example, in order to preferably suppress Reyleith scanttering light, can also be first point in Raman light signal collection light path 321 The downstream of light microscopic sets pass filter piece long or notch filter piece 326, for filtering by the optical signal after the first spectroscope Reyleith scanttering light.Certainly, embodiment of the present utility model is not limited to this, for example, it is also possible to be not provided with pass filter piece long or trap Filter plate 326.

In another example, as shown in Figure 7 and Figure 8, Optical devices 320 ' can also include：Raman light signal collection light path 321, for collecting the Raman optical signal from the testing sample；And infrared light collects light path 323 ', come from for collecting The infrared light of the testing sample 330.It is different from the infra-red radiation branch road 323 in above-mentioned example as shown in Figure 5 and Figure 6, institute State infrared light collection light path 323 ' and be totally independent of the Raman light signal collection light path 321.This can as much as possible retain drawing Original light channel structure of graceful spectrum detection device.Area network safety detector 350 can be arranged at any position near testing sample 330 Put, as long as the intensity of infrared signal disclosure satisfy that the detection requirement of area network safety detector 350.

What is shown in the exemplary inspection equipment of the article based on the Raman spectrum 300c and Fig. 8 shown in Fig. 7 is exemplary Article based on Raman spectrum check differing only in for equipment 300d, in the figure 7, exciting light 311 is directed to treats test sample Light path and Raman light signal collection light path 321 on product 330 are from the part between the second spectroscope 325 and testing sample 330 It is to overlap, and in fig. 8, exciting light 311 is directed to light path and Raman light signal collection light path on testing sample 330 321 is completely self-contained (or referred to as exciting light 311 is irradiated to testing sample 330 by off-axis).

In the example of Fig. 5 and Fig. 8, as an example, can also be by certain before exciting light is irradiated on testing sample 330 A little optical elements (such as speculum) change direction with more convenient and be directed into exactly on testing sample 330.

As shown in figure 9, in one example, the article based on Raman spectrum checks that equipment 300e can also include controller 360.The controller 360 receives the testing result of the area network safety detector 350 and sends control letter to the laser 310 Number.The controller 360 can be configured to exceed predetermined threshold in the emittance of the infrared light detected by area network safety detector 350 Reduce the power or shut-off laser 310 of laser 310 during value.As an example, by the temperature of testing sample 330 is sent out with it There is corresponding relation in the emittance of the infrared light for going out, therefore, the emittance of set infrared light is pre- in controller 360 The temperature value that threshold value can correspond to a maximum allowable temperature for being no more than testing sample 330 is determined, so as to avoid testing sample 330 Ruined because temperature is too high.The controller 360 can come real by parts such as such as integrated circuit, signal processor, computers It is existing.

As an example, the Optical devices 320 can be integrated in fibre-optical probe 370, what the laser 310 sent swashs Luminous 311 can import the fibre-optical probe 370 by importing optical fiber 371, and the fibre-optical probe 370 is by collecting optical fiber 372 The Raman optical signal that will be collected into is sent to spectrometer 340.Certainly, Optical devices 320 can also be come by discrete optical element Build.But by the way of fibre-optical probe 370, it is possible to increase the stability of system.

As an example, exciting light is reached between the second spectroscope 325 or the first convergent lens 324, standard is may also pass through Straight lens 327 and narrow band filter slice 328.Collimation lens 327 can make exciting light be referred to as being similar to directional light improving directionality And optical efficiency.Narrow band filter slice 328 can remove interference, improve signal to noise ratio of the exciting light in desired wavelength period.As Example, in order to realize the folding of light path, can also set one or more deflection mirrors 329.As an example, in order that drawing Graceful flashlight can preferably be coupled into spectrometer 340, can also set the second convergent lens in the upstream for collecting optical fiber 372 341。

Embodiment of the present utility model additionally provides the security monitoring side that a kind of article based on Raman spectrum checks equipment Method 200.As shown in Figure 10, the method for safety monitoring 200 can include：

Step S10：Exciting light is launched by laser；

Step S20：The exciting light is guided to testing sample and the Raman optical signal from the testing sample is collected； And

Step S30：Detect that the emittance of the infrared light that the testing sample sends is described to monitor by area network safety detector The temperature of testing sample.

The method can be used for the temperature of the monitoring testing sample when the article based on Raman spectrum checks that equipment works.

As an example, the method for safety monitoring 200 can also include：

Step S40：Reduce the power or shut-off laser of laser when the temperature of the testing sample is more than predetermined threshold Device.

Step S40 can in real time monitor the temperature of testing sample when the article based on Raman spectrum checks that equipment works Whether more than predetermined threshold, (predetermined threshold can be for example 80 degree, 100 degree, 150 degree etc. to degree, can be dependent on testing sample 330 determine), so as to ensure to detect the security of work.

As an example, the monitoring method 200 can also include：

Step S50：Laser is turned off after laser transmitting exciting light continues a predetermined amount of time, and according to testing sample Temperature change in the predetermined amount of time determines the security of testing sample.

Step S50 can be used in the formal security for performing and detection being assessed before Raman spectrum detection is operated.This is pre- Section of fixing time for example can be 0.5 second, 1 second, 3 seconds etc..If it is expected that the temperature of testing sample may be too high, then there can be pin Raman detection parameter (such as laser power, testing sample position etc.) is controlled property, so as to avoid occurring in formal detection Security risk.

In embodiment of the present utility model, step S40 and step S50 can select one and use, it is also possible to be applied in combination.Figure Dotted portion represents optional step in 10.

Detailed description above has been elaborated above-mentioned based on Raman light by using schematic diagram, flow chart and/or example The article of spectrum checks numerous embodiments of equipment and its monitoring method.One is included in this schematic diagram, flow chart and/or example Or in the case of multiple functions and/or operation, it will be understood by those skilled in the art that in this schematic diagram, flow chart or example Each function and/or operation can be by various structures, hardware, software, firmware or substantially their any combination come individually And/or common realization.In one embodiment, if the stem portion of theme described in embodiment of the present utility model can be by special Integrated circuit (ASIC), field programmable gate array (FPGA), digital signal processor (DSP) or other integrated forms come real It is existing.However, those skilled in the art will appreciate that some aspects of embodiments disclosed herein on the whole or partly may be used Equally to realize in integrated circuits, being embodied as one or more computer programs run on one or more computer (for example, being embodied as one or more programs run in one or more computer system), is embodied as at one or more One or more programs run on processor are (for example, be embodied as or many run in one or more microprocessors Individual program), be embodied as firmware, or be substantially embodied as any combination of aforesaid way, and those skilled in the art according to The disclosure, will be provided with the ability for designing circuit and/or write-in software and/or firmware code.Additionally, those skilled in the art will recognize Know, the mechanism of theme described in the disclosure can be distributed as the program product of diversified forms, and no matter actually be used for How is the particular type of the signal bearing medium of execution distribution, and the exemplary embodiment of theme described in the disclosure is applicable.Signal The example of bearing medium is included but is not limited to：Recordable-type media, such as floppy disk, hard disk drive, CD (CD, DVD), digital magnetic Band, computer storage etc.；And transmission type media, such as numeral and/or analogue communication medium (for example, optical fiber cable, waveguide, Wired communications links, wireless communication link etc.).

Unless there is technology barrier or contradiction, above-mentioned various implementation methods of the present utility model can be with independent assortment being formed Further embodiment, these further embodiments are in protection domain of the present utility model.

Although being illustrated to the utility model with reference to accompanying drawing, the embodiment disclosed in accompanying drawing is intended to this practicality New preferred embodiment is illustrative, and it is not intended that to a kind of limitation of the present utility model.Chi in accompanying drawing Very little ratio is only schematical, can not be interpreted as to limitation of the present utility model.

Although being illustrated to the utility model with reference to accompanying drawing, the embodiment disclosed in accompanying drawing is intended to this practicality New preferred embodiment is illustrative, and it is not intended that to a kind of limitation of the present utility model.

Although some embodiments of the utility model general plotting have been shown and have illustrated, those of ordinary skill in the art will Understand, in the case of the principle and spirit conceived without departing substantially from this overall utility model, these embodiments can be made a change, this The scope of utility model is limited with claim and their equivalent.

Claims (13)

1. a kind of article based on Raman spectrum checks equipment, it is characterised in that including：

Laser, for launching laser；

Optical directory means, for by the laser aiming to measured object and collect the Raman diffused light from measured object；

Spectrum generating means, for receive by optical directory means collect Raman diffused light and generate raman spectral signal；

Spectral analysis device, for being analyzed to draw inspection result to the raman spectral signal；And

Supervising device, for monitoring the state of measured object and according to the state of measured object controlling article inspection operation.

2. the article based on Raman spectrum according to claim 1 checks equipment, it is characterised in that the supervising device bag Include：

Information acquisition unit, described information acquiring unit is configured to obtain the status information of measured object；

Control unit, described control unit is configured to the status information based on the measured object to start or stop article inspection behaviour Make.

3. the article based on Raman spectrum according to claim 2 checks equipment, it is characterised in that described information obtains single Unit includes shooting unit, and the shooting unit is configured to shoot the detected part of measured object obtain the detected part Colouring information as measured object status information.

4. the article based on Raman spectrum according to claim 3 checks equipment, it is characterised in that described control unit is matched somebody with somebody It is set to and stops article inspection operation when the color of the detected part is predetermined color.

5. the article based on Raman spectrum according to claim 2 checks equipment, it is characterised in that described information obtains single Unit includes temperature measurement unit, and the temperature measurement unit is configured to be measured in article inspection operation the temperature of the measured object Degree.

6. the article based on Raman spectrum according to claim 5 checks equipment, it is characterised in that described control unit is matched somebody with somebody It is set to and stops article inspection operation when the amplitude or change slope of the temperature of the measured object exceed predetermined threshold value.

7. the article based on Raman spectrum according to claim 5 checks equipment, it is characterised in that the temperature survey list Unit includes infrared temperature measurement apparatus.

8. the article based on Raman spectrum according to claim 2 checks equipment, it is characterised in that described information obtains single Unit also includes that laser irradiates dangerous discernment unit, and whether the laser irradiation dangerous discernment unit is configured to identification non-irradiated object Fall into by laser or the region that will be irradiated with a laser.

9. the article based on Raman spectrum according to claim 8 checks equipment, it is characterised in that the non-irradiated object Face including people.

10. the article based on Raman spectrum according to claim 2 checks equipment, it is characterised in that the supervising device Also include recording unit, the recording unit is configured to record the material picture of the measured object.

11. article based on Raman spectrum according to any one of claim 1-10 checks equipment, it is characterised in that institute Stating article inspection operation includes sending laser with laser.

12. article based on Raman spectrum according to any one of claim 1-10 checks equipment, it is characterised in that also Including weight identifying device, article is distinguished for the weight according to measured object.

13. articles based on Raman spectrum according to claim 12 check equipment, it is characterised in that the weight identification Device includes：

Weighing unit, measures for the weight to measured object；

Memory cell, the database for storing predetermined referential weight and corresponding bar code；

Comparing unit, for the weight of measured measured object is compared with the referential weight with determine with it is measured Bar code corresponding to the immediate referential weight of weight of the measured object for arriving；And

Output unit, exports identified bar code as weight recognition result.