CN210155030U - Near-infrared fruit quality nondestructive test device that many probes distributing type was gathered - Google Patents
Near-infrared fruit quality nondestructive test device that many probes distributing type was gathered Download PDFInfo
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- CN210155030U CN210155030U CN201920743865.5U CN201920743865U CN210155030U CN 210155030 U CN210155030 U CN 210155030U CN 201920743865 U CN201920743865 U CN 201920743865U CN 210155030 U CN210155030 U CN 210155030U
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Abstract
The utility model discloses a near-infrared fruit quality nondestructive testing device with multi-probe distributed collection, which relates to the near-infrared technical field, the device adopts a structure with distributed fiber probes and utilizes a controller to carry out automatic control and processing, a plurality of bottom fiber probes are arranged on a sample placing table, an equatorial fiber probe is arranged on a guide rail at the side of the sample placing table through a probe bracket, the controller can fit the profile of a sample to be detected by detecting the distance between the sample to be detected and a distance measuring instrument which can slide along the guide rail, then the controller can automatically adjust the height and the angle of the equatorial fiber probe according to the profile of the sample to be detected so as to ensure that the equatorial fiber probe is just aligned to the equatorial position of the sample to be detected to collect the spectrum of the equatorial part of the sample, and the multi-point spectrum at the bottom of the sample collected by combining the plurality of bottom fiber probes, and a more accurate detection result is obtained.
Description
Technical Field
The utility model belongs to the technical field of the near-infrared technique and specifically relates to a near-infrared fruit quality nondestructive test device of many probes distributing type collection.
Background
The near infrared spectrum can comprehensively reflect the physicochemical characteristics of the inside and the outside of the fruit, and the short wave near infrared contains abundant sample spectrum information, which is one of important means for analyzing the physicochemical indexes of the sample, so that the near infrared spectrum is often used for nondestructive detection of the fruit. In the near-infrared diffuse transmission detection mode, a light source irradiates a sample from two sides, and light is finally received by a fiber probe at the bottom of the sample after passing through the sample, so that the obtained spectrum contains the spectral information of almost the whole sample and can well reflect the physicochemical characteristics in the sample.
SUMMERY OF THE UTILITY MODEL
The invention provides a near-infrared fruit quality nondestructive testing device with multi-probe distributed acquisition, aiming at the problems and the technical requirements, the nondestructive testing device dynamically acquires multipoint spectrum information of a sample to be tested through a distributed optical fiber probe, can more comprehensively reflect the internal quality information of the sample, and obtains a more accurate testing result.
The technical scheme of the utility model as follows:
a near-infrared fruit quality nondestructive testing device with multi-probe distributed acquisition comprises a sample placing table, wherein at least two bottom optical fiber probes are uniformly arranged on the table top of the sample placing table, the at least two bottom optical fiber probes are respectively connected with a spectrometer through transmission optical fibers, and a sample to be tested is placed on the sample placing table; the nondestructive testing device also comprises light sources symmetrically arranged at two sides of the sample placing table, and the light sources at two sides symmetrically irradiate the sample to be tested; guide rails which are arranged in the vertical direction are symmetrically arranged on two sides of the sample placing table, a range finder sliding block is arranged in each guide rail, a range finder is fixed on each range finder sliding block, the range finder is horizontally arranged towards the direction of the sample placing table and is connected with a controller, the controller is also connected with a range finder motor, and the range finder motor is connected with and drives the range finder sliding block to slide up and down in the guide rails; still be provided with the probe slider in one of them guide rail, the probe slider passes through the one end of first pivot connection probe holder, the equator fiber optic probe is connected through the second pivot to the other end of probe holder, equator fiber optic probe passes through transmission optical fiber and connects the spectrum appearance, the controller still connects probe driving motor, probe driving motor connects and drives the probe slider and slides from top to bottom in the guide rail, the controller still connects and drives first pivot and second pivot, first pivot drives the probe holder and uses first pivot to rotate as the relative probe slider of pivot, the second pivot drives equator fiber optic probe and uses the second pivot to rotate as the relative probe holder of pivot.
Its further technical scheme does, the light source that the sample placed the platform bilateral symmetry and set up respectively in the guide rail of both sides: still be provided with the light source slider in every guide rail, the light source slider passes through the one end of third pivot connection light source support, the other end of light source support links to each other with the light source through the fourth pivot, the controller still connects light source driving motor, light source driving motor connects and drives the light source slider and slides from top to bottom in the guide rail, the controller still connects and drives third pivot and fourth pivot, the third pivot drives the light source support and uses the third pivot to rotate as the relative light source slider of pivot, the fourth pivot drives the light source and uses the fourth pivot to rotate as the relative light source support of pivot.
The further technical proposal is that the table top of the sample placing table is a shading table top, and a shading cover is arranged outside the equatorial fiber probe.
The utility model has the beneficial technical effects that:
the application discloses near-infrared fruit quality nondestructive test device of many probes distributing type collection, this nondestructive test device adopts the distributing type to set up fiber probe's structure and utilizes the controller to carry out automatic control and processing, a plurality of bottom fiber probe that set up on the platform is placed to the sample can gather sample bottom multiple spot spectrum, thereby through can be along the gliding distancer of guide rail detect with wait the distance of waiting to detect the sample make the controller fit the profile of waiting to detect the sample, then the controller can make its spectrum just to the equator position of waiting to detect the sample just to gather the sample equator part according to the height and the angle of waiting to detect the profile of sample automatic adjustment equator fiber probe, thereby the multiple spot spectrum of gathering through the fiber probe of distributing type can more comprehensively reflect the inside quality information of sample, obtain more accurate testing result.
Simultaneously in this application, the controller can also be according to the profile automatic adjustment light source wait to detect the sample the height and the angle thereby provide the best effect of shining for waiting to detect the sample of equidimension not for the light source furthest pierces through the sample, carries more sample internal information.
Drawings
FIG. 1 is a block diagram of a near-infrared fruit quality non-destructive inspection apparatus disclosed in the present application.
FIG. 2 is a diagram of the bottom fiber probe profile.
Fig. 3 is an electrical control schematic diagram in the near-infrared fruit quality nondestructive testing device disclosed in the present application.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings.
The application discloses near-infrared fruit quality nondestructive test device that many probes distributing type was gathered, please refer to fig. 1-3, and this nondestructive test device includes that the sample places platform 1, and the sample is placed and is used for placing sample M that awaits measuring on the platform 1, evenly is provided with two at least bottom fiber probe 2 on the mesa of platform 1 is placed to the sample, and the specific quantity and the distribution condition of bottom fiber probe 2 dispose as required, and fig. 2 shows the distribution condition when being provided with 5 bottom fiber probe 2 sketch map. Further, the mesa of platform 1 is placed to the sample is the shading mesa, and when the sample M that awaits measuring sets up on platform 1 is placed to the sample, bottom fiber probe 2 hugs closely and waits to detect sample M or with wait to detect sample M interval certain distance setting, because the sample is placed platform 1 leak-tight, consequently can block the direct interference of light source to bottom fiber probe 2, and these at least two bottom fiber probe 2 connect the spectrum appearance 4 through transmission optical fiber 3 respectively, spectrum appearance 4 in this application can choose for use single and a plurality of module according to the actual application condition. The bilateral symmetry that the platform 1 was placed to the sample is provided with guide rail 5 that vertical direction set up, be provided with distancer slider 6 in every guide rail 5, be fixed with distancer 7 on the distancer slider 6, distancer 7 sets up towards the direction level that the platform 1 was placed to the sample, then two distancer 7 subtend settings of both sides, 7 connection director of distancer, the controller is not shown in figure 1, the controller can adopt equipment such as PLC controller or industrial computer, this application does not do the injecture, 7 connection director of distancer and send the data of gathering for the controller and handle. The controller is also connected with a distance measuring instrument motor, the distance measuring instrument motor is not shown in fig. 1, the distance measuring instrument motor is connected with and drives the distance measuring instrument sliding blocks 6 to slide up and down in the guide rails 5 where the distance measuring instrument sliding blocks are located, the two distance measuring instrument sliding blocks 6 on the two sides can be driven by the same distance measuring instrument motor, and can also be driven by the two distance measuring instrument motors respectively and independently, so that the application is not limited. The controller can fit the contour of the sample M to be detected according to the data measured by the distance meter 7, so as to determine the position of the equator of the sample M to be detected.
Still be provided with probe slider 8 in one of them guide rail 5, probe slider 8 passes through the one end of first pivot 9 connection probe support 10, and the other end of probe support 10 passes through second pivot 11 and connects equator fiber optic probe 12, and equator fiber optic probe 12 passes through transmission fiber and connects spectrum appearance 4, and equator fiber optic probe 12 and bottom fiber optic probe 2 in this application are the same fiber optic probe, and this application only distinguishes its position that sets up with this. The controller is also connected with a probe driving motor, the probe driving motor is not shown in fig. 1, the probe driving motor is connected with and drives the probe sliding block 8 to slide up and down in the guide rail, the controller is also connected with and drives the first rotating shaft 9 and the second rotating shaft 11, the first rotating shaft 9 and the second rotating shaft 11 are both electric rotating shafts, the first rotating shaft 9 drives the probe support 10 to rotate relative to the probe sliding block 8 by taking the first rotating shaft 9 as a rotating shaft, the second rotating shaft 11 drives the equatorial optical fiber probe 12 to rotate relative to the probe support 10 by taking the second rotating shaft 11 as a rotating shaft, so that the equatorial optical fiber probe 12 not only can translate up and down along the guide rail, but also can rotate under the driving of the first rotating shaft 9 and the second rotating shaft. From above, the controller can determine the equator position of the sample M to be detected according to the data measured by the distance meter 7, and then drive the probe bracket 8 to slide up and down by controlling the probe driving motor and/or drive the equator optical fiber probe 12 to rotate by controlling the first rotating shaft 9 and/or the second rotating shaft 11 so as to adjust the equator optical fiber probe 12 to the equator position of the sample M to be detected. Meanwhile, similar to the bottom optical fiber probe 2, the equatorial optical fiber probe 12 also adopts a light shielding structure to block direct interference of a light source, specifically, a light shielding cover 13 of a semi-surrounding structure is arranged outside the equatorial optical fiber probe 12, when a sample M to be detected is arranged on the sample placing table 1, and the equatorial optical fiber probe 12 moves to the position of the equator of the sample M to be detected under the control of the controller, the equatorial optical fiber probe 12 is closely attached to the sample M to be detected or is arranged at a certain distance from the sample M to be detected, and the light shielding cover 13 is arranged outside the equatorial optical fiber probe 12 in a shielding manner and the light shielding cover 13 does not leak light, so that direct interference of the light source to the equatorial optical fiber probe 12.
This nondestructive test device still includes the light source 14 that places platform 1 bilateral symmetry at the sample and set up, and the light source 14 symmetry of this both sides shines and waits to detect sample M, and light source 14 in this application is not fixed position, but respectively the activity sets up in the guide rail 5 of both sides, and is specific: each guide rail 5 is further provided with a light source slider 15, the light source slider 15 is connected with one end of a light source support 17 through a third rotating shaft 16, the other end of the light source support 17 is connected with a light source 14 through a fourth rotating shaft 18, the controller is further connected with a light source driving motor, the light source driving motor is not shown in fig. 1, the light source driving motor is connected with and drives the light source slider 15 to slide up and down in the guide rail 5, the two light source sliders 15 on the two sides can be driven by the same light source driving motor, and can also be respectively and independently driven by the two light source driving motors, which is not limited in the application. The controller is further connected with and drives a third rotating shaft 16 and a fourth rotating shaft 18, the third rotating shaft 16 and the fourth rotating shaft 18 are both electric rotating shafts, the third rotating shaft 16 drives the light source support 17 to rotate relative to the light source sliding block 15 by taking the third rotating shaft 16 as a rotating shaft, the fourth rotating shaft 18 drives the light source 14 to rotate relative to the light source support 17 by taking the fourth rotating shaft 18 as a rotating shaft, so that the light source 14 can not only translate up and down along the guide rail 5, but also rotate under the driving of the third rotating shaft 16 and the fourth rotating shaft 18, after the controller fits the outline of the sample M to be detected according to the data measured by the distance meter 7, the irradiation height and the irradiation angle of the light source 14 can be adjusted according to the outline of the sample M to be detected, and therefore the optimal illumination effect is provided for the sample M to. In addition, all the components are actually assembled in the closed collection box to prevent stray light interference.
The application requests to protect the knot of the nondestructive testing deviceThe method of use will now be described by way of example based on the structure disclosed in fig. 1, but the specific control and calculation methods involved in the following work processes do not fall within the scope of the claims of the present application: in order to measure the sugar degree and the moisture of shaddock, place the shaddock on the sample places platform 1, the work of controller control distancer motor, drive distancer slider 6 drives distancer 7 and accomplishes the scanning to the shaddock in guide rail 5 distance between slip measurement and the shaddock about, the distancer 7 of both sides sends the data of gathering for the controller, the controller can fit out the side profile curve of shaddock according to 7 and the distance value between the shaddock of distancer 7 at each high feedback, thereby estimate the equator position of shaddock. Then the work of controller control light source driving motor, thereby drive light source slider 15 drives light source 14 and slides up and down in guide rail 5 and adjust the height, thereby can also control third pivot 16 and fourth pivot 18 and rotate the angle of illumination of adjustment light source 14 to adjust the light source 14 of both sides to apart from the optimum position of shaddock and angle, make the light source maximize pierce through the shaddock, make the diffuse transmission signal carry more fruit internal quality information. In addition, the controller controls the probe driving motor to work, the probe sliding block 8 is driven to drive the equatorial optical fiber probe 12 to slide up and down on the guide rail 5 so as to adjust the height, and the first rotating shaft 9 and the second rotating shaft 11 can be controlled to rotate to adjust the orientation of the equatorial optical fiber probe 12 so as to enable the equatorial optical fiber probe to face the position of the equator of the sample M to be detected. After the light source 14 and the equator fiber-optic probe 12 are adjusted, the bottom fiber-optic probe 2 transmits diffuse transmission signals of the sample to be detected to the spectrometer 4, the equator fiber-optic probe 12 transmits equator partial signals of the sample to be detected to the spectrometer, and if the spectrum collected by each bottom fiber-optic probe 2 is transmitted to the spectrometer 4 and corresponds to B1，B2，B3，B4……BNAnd the spectrum synchronously acquired by the equatorial part is transmitted to the spectrometer 4, which corresponds to E, the bottom spectrum average value B is determined by the following formula:
substituting the corresponding bottom prediction model to obtain a result RBSubstituting the equatorial spectrum into the equatorial prediction model to obtain a prediction result REAnd the final prediction result R is as follows:
this application adopts as above distributed fiber probe structure to realize the dynamic collection of multiple spot spectrum, in addition, the sample can also add the rotating electrical machines in placing platform 1 and rotate in order to drive and wait to detect sample M, thereby make bottom fiber probe 2 and equator fiber probe 12 can gather the multiple spot spectrum of waiting to detect the rotatory in-process of sample M, then sample placing platform 1 specifically includes the rotating electrical machines, rotary disk and tray, the rotating electrical machines is connected to the controller, the motor shaft of rotating electrical machines sets up and connects the rotary disk along vertical direction, the rotating electrical machines drive rotary disk is rotatory at the horizontal direction, the rotary disk is used for placing and waits to detect sample M, then the controller can control the rotating electrical machines work and rotate in order to drive and wait to. The tray sets up around the rotary disk, and the tray is used for bearing and spacing waiting to detect the sample, and bottom fiber probe 2 sets up on the tray and towards waiting to detect sample M on the rotary disk, because bottom fiber probe 2 and equator fiber probe 12 are fixed, consequently detect the rotatory in-process of sample M, and fiber probe can gather sample bottom and equator position multiple spot spectrum, the inside quality information of comprehensive reflection sample, prevents the result error that the inside quality of sample is inhomogeneous to lead to.
What has been described above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and scope of the present invention are to be considered as included within the scope of the present invention.
Claims (3)
1. The near-infrared fruit quality nondestructive testing device with multi-probe distributed acquisition is characterized by comprising a sample placing table, wherein at least two bottom optical fiber probes are uniformly arranged on the table top of the sample placing table, the at least two bottom optical fiber probes are respectively connected with a spectrometer through transmission optical fibers, and a sample to be tested is placed on the sample placing table; the nondestructive testing device also comprises light sources symmetrically arranged at two sides of the sample placing table, and the light sources at two sides symmetrically irradiate the sample to be tested; guide rails which are arranged in the vertical direction are symmetrically arranged on two sides of the sample placing table, a range finder sliding block is arranged in each guide rail, a range finder is fixed on each range finder sliding block, the range finders are horizontally arranged towards the direction of the sample placing table and are connected with a controller, the controller is also connected with a range finder motor, and the range finder motor is connected with and drives the range finder sliding blocks to slide up and down in the guide rails; one of them still be provided with the probe slider in the guide rail, the probe slider passes through the one end of first pivot hub connection probe holder, the equator fiber optic probe is connected through the second pivot to the other end of probe holder, equator fiber optic probe passes through transmission optical fiber and connects the spectrum appearance, the controller is still connected probe driving motor, probe driving motor connects and drives the probe slider is in slide from top to bottom in the guide rail, the controller is still connected and drive first pivot with the second pivot, first pivot drives the probe holder uses first pivot is relative as the pivot the probe slider rotates, the second pivot drives equator fiber optic probe uses the second pivot is relative as the pivot the probe holder rotates.
2. The near-infrared nondestructive testing device for fruit quality according to claim 1, wherein the light sources symmetrically arranged at both sides of the sample placing table are respectively arranged in the guide rails at both sides: every still be provided with the light source slider in the guide rail, the light source slider passes through the one end of third pivot connection light source support, the other end of light source support passes through the fourth pivot and links to each other with the light source, the controller is still connected light source driving motor, light source driving motor connects and drives the light source slider is in slide from top to bottom in the guide rail, the controller is still connected and drives the third pivot with the fourth pivot, the third pivot drives the light source support with the third pivot is relative as the pivot the light source slider rotates, the fourth pivot drives the light source with the fourth pivot is relative as the pivot the light source support rotates.
3. The near-infrared fruit quality nondestructive testing device according to claim 1 or 2, wherein the table surface of the sample placing table is a light-shielding table surface, and a light-shielding hood is arranged outside the equatorial fiber probe.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111795966A (en) * | 2020-06-03 | 2020-10-20 | 湖南杨氏鲜果有限公司 | Fruit quality detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795966A (en) * | 2020-06-03 | 2020-10-20 | 湖南杨氏鲜果有限公司 | Fruit quality detection equipment |
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