A rotating experimental table and detection method for detecting near-infrared spectrum and diameter of sugar core apple

Abstract

The present application relates to the technical field of diameter detection, and specifically relates to a rotating experimental table for detecting the near-infrared spectrum and diameter of sugar core apples and a detection method, comprising a frame, a support assembly, a rotating assembly and a sensing assembly. A distance sensor is arranged on the inner top wall of the frame. The distance sensor installation end is fixedly connected with the inner top wall of the frame. The distance sensor detection end is arranged towards the lower side. A halogen lamp is arranged on the inner top of the frame. The support assembly is arranged on the inner bottom of the frame. The support assembly is symmetrically arranged with two support assemblies with the frame axis as the axis. The top of the two support assemblies is fixedly connected with the bottom of the experimental table. A halogen lamp relay and a control panel are arranged on the experimental table. The rotating assembly is arranged on the experimental table. The sensing assembly is arranged corresponding to the rotating assembly and is arranged on the bottom of the experimental table. The characteristics of high precision, high efficiency and easy operation can be widely applied to industrial production, scientific research experiments and other fields, and meet the needs of near-infrared spectrum nondestructive detection and diameter measurement in different scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of near-infrared spectroscopy nondestructive testing, in particular to a rotating experimental table for detecting the near-infrared spectrum and diameter of sugar core apples and a detection method. BACKGROUND

[0002] In the field of industrial production and scientific research, it is crucial to realize nondestructive testing of the near-infrared spectrum of target objects. In traditional nondestructive testing of the near-infrared spectrum, sugar core apples are often detected in a fixed posture, and their external diameter is often ignored. This makes traditional nondestructive testing of the near-infrared spectrum susceptible to uneven distribution of internal substances and changes in diameter, resulting in detection errors.

[0003] In view of the specific problems that the traditional spectral detection method cannot avoid the interference of uneven distribution of internal substances and lacks a diameter detection step, it is particularly important to develop a non-contact diameter detection method based on near-infrared spectroscopy technology. This method can overcome the shortcomings of traditional nondestructive testing methods by rotating detection, realize accurate nondestructive testing of internal non-uniform substances, obtain the diameter of sugar core apples, and ensure the accuracy of nondestructive testing. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application proposes a rotating experimental table for detecting the near-infrared spectrum and diameter of sugar core apples and a detection method, aiming to solve at least one of the problems in the background art.

[0005] In a first aspect, the present application provides a rotating experimental table for detecting the near-infrared spectrum and diameter of sugar core apples, comprising: a frame, a distance sensor is arranged on the inner top wall of the frame, the distance sensor is fixedly connected to the inner top wall of the frame at the installation end, and the detection end of the distance sensor is arranged towards the lower side, and a halogen lamp is arranged on the inner top of the frame;

[0006] A support assembly is arranged on the bottom of the frame, and the support assembly is arranged symmetrically about the axis of the frame, and two support assemblies are arranged on the top of the experimental table and fixedly connected to the bottom of the experimental table, and a halogen lamp relay and a control panel are arranged on the experimental table;

[0007] A rotating assembly is arranged on the experimental table.

[0008] An induction assembly is arranged corresponding to the rotating assembly, and the induction assembly is arranged on the bottom of the experimental table.

[0009] In some embodiments, the frame is a cubic frame structure, a U-shaped frame is arranged in the frame, the U-shaped frame is arranged with an opening downward, the outer diameter of the U-shaped frame matches the inner diameter of the frame, the outer sidewall of the U-shaped frame is fixedly connected with the inner wall of the frame, the frame and the U-shaped frame are coaxial, the distance sensor is arranged on the inner wall of the U-shaped frame, the mounting end of the distance sensor is fixedly connected with the inner wall of the U-shaped frame, two halogen lamps are symmetrically arranged about the distance sensor, and the mounting ends of the two halogen lamps are fixedly connected with the inner wall of the U-shaped frame, and the light wavelength of the halogen lamp is 260-850nm.

[0010] In some embodiments, the support assembly comprises:

[0011] A connecting column is arranged at the bottom of the frame, and the connecting column is arranged horizontally, and the two ends of the connecting column are fixedly connected with the inner wall of the frame.

[0012] Two support columns are symmetrically arranged about the axis of the connecting column, and the bottoms of the two support columns are fixedly connected with the top surface of the connecting column, the two support columns are arranged perpendicularly to the connecting column, and the tops of the two support columns are fixedly connected with the bottom surface of the test bench.

[0013] In some embodiments, the test bench is arranged horizontally, the side walls of the test bench are fixedly connected with the inner wall of the frame and the inner wall of the U-shaped frame, the halogen lamp relay and the control panel are arranged on the top surface of the test bench, and the bottom mounting end of the halogen lamp relay and the bottom mounting end of the control panel are fixedly connected with the top surface of the test bench.

[0014] In some embodiments, the rotating assembly comprises:

[0015] A steering engine is arranged at the bottom of the test bench, the mounting end of the steering engine is fixedly connected with the bottom of the test bench, the output shaft of the steering engine is connected with the rotating end of the speed reducer through gear meshing, the top of the rotating end of the speed reducer extends through the test bench to the top of the test bench, and the top of the rotating end of the speed reducer is fixedly connected with a first rotating gear, the first rotating gear is arranged horizontally, and the mounting end of the speed reducer is fixedly connected with the bottom of the test bench.

[0016] A rotating base is arranged on one side of the first rotating gear, the bottom of the rotating base is fixedly connected with the top of the test bench, a second rotating gear is sleeved on the sidewall around the top rotating end of the rotating base, the inner wall of the second rotating gear is fixedly connected with the sidewall of the top rotating end of the rotating base, and the first rotating gear is meshingly connected with the second rotating gear.

[0017] In some embodiments, the rotating base top rotating end is provided with a central through hole, and a silica gel light isolation cushion is attached to the rotating end in a fitting manner, and the outer diameter of the silica gel light isolation cushion matches the outer diameter of the rotating end.

[0018] In some embodiments, the sensing assembly comprises:

[0019] A photosensitive probe extends through the test table into the central through hole, a photosensitive end of the photosensitive probe corresponds to the distance sensor, and the photosensitive probe is vertically arranged, and the side wall of the photosensitive probe is fixedly connected to the bottom of the test table.

[0020] An optical fiber is connected to the photosensitive probe at one end, and the other end of the optical fiber is connected to a spectrometer interface.

[0021] In some embodiments, a single-chip microcomputer and a display screen are arranged on the control panel, and a state indicating lamp and a control button are further arranged on one side of the control panel.

[0022] In some embodiments, the distance sensor, the halogen lamp, the halogen lamp relay, the control panel, the steering engine, and the speed reducer are electrically connected.

[0023] On the other hand, in some embodiments, the present application provides a method for detecting the near-infrared spectrum and the diameter of a sugar core apple, comprising the following steps:

[0024] S1, place the sugar core apple on the rotating base, connect the spectrometer interface to the spectrometer and start the spectrum detection, then place the silica gel light isolation cushion between the sugar core apple and the rotating base, and the distance sensor will detect the diameter of the sugar core apple;

[0025] S2, press the start detection button, and the single-chip microcomputer controls the halogen lamp relay to turn on the halogen lamp power to turn on the halogen lamp;

[0026] S3, after the halogen lamp is turned on for 5 seconds, the single-chip microcomputer controls the steering engine and the speed reducer to start the rotation of the rotating base, and the rotating angle of the rotating base is: first rotate 360 degrees clockwise, and then rotate 360 degrees counterclockwise;

[0027] S4, after the rotation is completed, wait for 3 seconds, turn off the halogen lamp, and end the spectrum detection.

[0028] The above general description and the following detailed description are only exemplary and explanatory, but not limiting the present disclosure.

[0029] Other features and aspects of the present disclosure will become more apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and all other drawings obtained by those skilled in the art without creative labor based on these drawings also belong to the protection scope of the present application.

[0031] Fig. 1 A rotation detection sugar core apple near-infrared spectrum and diameter experimental bench isosceles trapezoidal view provided for the embodiment of the present application;

[0032] Fig. 2 A rotation detection sugar core apple near-infrared spectrum and diameter experimental bench front view provided for the embodiment of the present application;

[0033] Fig. 3 A rotation detection sugar core apple near-infrared spectrum and diameter experimental bench local enlarged view provided for the embodiment of the present application.

[0034] Wherein: 1, frame; 2, distance sensor; 3, halogen lamp; 4, test bench; 5, halogen lamp relay; 6, control panel; 7, U-shaped frame; 8, connecting column; 9, supporting column; 10, rudder machine; 11, first rotating gear; 12, rotating base; 13, second rotating gear; 14, center through hole; 15, silica gel light isolation soft pad; 16, photosensitive probe; 17, optical fiber; 18, spectrometer interface; 19, display screen; 20, status indicator light; 21, control button; 22, speed reducer. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0037] The terms "first", "second", etc. are used only for the purpose of description and do not imply or indicate relative importance or imply a number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0038] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] As in the background art, in the field of industrial production and scientific research, accurate measurement of the size of an object is crucial. Traditional size measurement methods, such as calipers, vernier calipers, etc., although simple to operate, have certain limitations in precision and efficiency, especially in the case of rapid, non-destructive testing.

[0040] For the specific requirement of diameter measurement, traditional contact measurement methods may introduce additional errors, and are not suitable for some soft or easily deformed materials. Therefore, it is particularly important to develop a non-contact diameter detection method based on near-infrared spectroscopy technology. This method can overcome the shortcomings of traditional measurement methods and achieve high-precision measurement of the diameters of various materials (including metals, plastics, rubbers, etc.) and different shapes of objects.

[0041] To improve the above problems, the application provides a rotating experimental table for detecting the near-infrared spectrum and diameter of a sugar core apple and a detection method, which can quickly complete the measurement of the diameter of the sugar core apple body and instantly display the result on the screen, greatly shortening the measurement time and improving the work efficiency; compared with the traditional single-pose detection method, the method can continuously detect the spectral data of the sugar core apple body for one week, and is more comprehensive and accurate. It can effectively reduce the error caused by uneven distribution of internal substances of the sugar core apple body and provide more reliable measurement results. The various components of the experimental table are controlled and integrated by the single-chip microcomputer, so that the control process is more simple and convenient. Users can easily complete the measurement task without complex operation steps. The halogen lamp as the light source can be freely controlled in the on-off state. When not in use, the halogen lamp can be turned off to reduce the heat accumulation in the experimental table, save energy and help protect the environment. The distance sensor is used for non-contact measurement, which avoids the additional error introduced by the traditional contact measurement and the risk of damage to the sugar core apple body. It is especially suitable for the measurement requirements of soft or deformable materials and sensitive surfaces.

[0042] Referring to Figs. 1-3 the first embodiment is shown in the drawings,

[0043] The experimental table for rotating and detecting the near-infrared spectrum and diameter of a sugar core apple according to the embodiment of the application comprises:

[0044] A frame 1 is provided with a distance sensor 2 on the inner top wall, the installation end of the distance sensor 2 is fixedly connected with the inner top wall of the frame 1, and the detection end of the distance sensor 2 is arranged towards the lower side. A halogen lamp 3 is arranged on the inner top of the frame 1.

[0045] A support assembly is arranged on the inner bottom of the frame 1, and the support assembly is arranged in pairs symmetrically about the axis of the frame 1. The top of each support assembly is fixedly connected with the bottom of the experimental table 4. A halogen lamp relay 5 and a control panel 6 are arranged on the experimental table 4.

[0046] A rotating assembly is arranged on the experimental table 4.

[0047] An inductive assembly is arranged corresponding to the rotating assembly and is arranged on the bottom of the experimental table 4.

[0048] In some embodiments, the frame 1 is a cubic frame structure, a U-shaped frame 7 is arranged in the frame 1, the U-shaped frame 7 is arranged with an opening downward, the outer diameter of the U-shaped frame 7 matches the inner diameter of the frame 1, the outer side wall of the U-shaped frame 7 is fixedly connected with the inner wall of the frame 1, the frame 1 and the U-shaped frame 7 are coaxial, the distance sensor 2 is arranged on the inner wall of the U-shaped frame 7, the mounting end of the distance sensor 2 is fixedly connected with the inner wall of the U-shaped frame 7, two halogen lamps 3 are symmetrically arranged with the distance sensor 2 as the axis, and the mounting end of each halogen lamp 3 is fixedly connected with the inner wall of the U-shaped frame 7, and the light wavelength of the halogen lamp 3 is 260-850nm.

[0049] Specifically, the distance sensor 2 is coaxial with the axis of the U-shaped frame 7, and the outer diameter of the U-shaped frame 7 matches the inner diameter of the frame 1, which can be understood as that the outer diameter of the U-shaped frame 7 is less than or equal to the inner diameter of the frame 1.

[0050] In some embodiments, the support assembly comprises:

[0051] A connecting column 8 is arranged at the bottom of the frame 1, and the connecting column 8 is horizontally arranged, and the two ends of the connecting column 8 are fixedly connected with the inner wall of the frame 1;

[0052] Two support columns 9 are symmetrically arranged with the axis of the connecting column 8 as the axis, and the bottom of each support column 9 is fixedly connected with the top surface of the connecting column 8, the two support columns 9 are perpendicular to the connecting column 8, and the top of each support column 9 is fixedly connected with the bottom surface of the test bench 4.

[0053] In some embodiments, the test bench 4 is horizontally arranged, and the side walls of the test bench 4 are fixedly connected with the inner wall of the frame 1 and the inner wall of the U-shaped frame 7, the halogen lamp relay 5 and the control panel 6 are arranged on the top surface of the test bench 4, and the bottom mounting end of the halogen lamp relay 5 and the bottom mounting end of the control panel 6 are fixedly connected with the top surface of the test bench 4.

[0054] In some embodiments, the rotating assembly comprises:

[0055] A steering gear 10 is arranged at the bottom of the test bench 4, the mounting end of the steering gear 10 is fixedly connected with the bottom of the test bench 4, the output shaft of the steering gear 10 is meshingly connected with the rotating end of the speed reducer 22, the top of the rotating end of the speed reducer 22 extends through the test bench 4 to the top of the test bench 4, and the top of the rotating end of the speed reducer 22 is fixedly connected with a first rotating gear 11, the first rotating gear 11 is horizontally arranged, and the mounting end of the speed reducer 22 is fixedly connected with the bottom of the test bench 4;

[0056] A rotating base 12 is arranged on one side of the first rotating gear 11, and the bottom of the rotating base 12 is fixedly connected to the top of the test table 4. A second rotating gear 13 is sleeved on the side wall of the rotating end of the top of the rotating base 12, and the inner wall of the second rotating gear 13 is fixedly connected to the side wall of the rotating end of the top of the rotating base 12. The first rotating gear 11 is in meshing connection with the second rotating gear 13.

[0057] Specifically, when the steering engine 10 rotates, the rotating end of the speed reducer 22 rotates with the steering engine 10, thereby driving the first rotating gear 11 to rotate, and the first rotating gear 11 drives the second rotating gear 13 to rotate. Since the second rotating gear 13 is fixedly connected to the rotating base 12, the rotating base 12 rotates with the second rotating gear 13. The speed reducer 22 can adjust the rotating speed of the first rotating gear 11.

[0058] In some specific embodiments, the rotating end of the top of the rotating base 12 is provided with a central through hole 14, and the top of the rotating base 12 is abutted with a silica gel light isolation cushion 15, and the outer diameter of the silica gel light isolation cushion 15 matches the outer diameter of the rotating end of the top of the rotating base 12.

[0059] Specifically, the rotating base 12 coincides with the axis of the distance sensor 2, the silica gel light isolation cushion 15 is placed on the top of the rotating base 12, and the bottom of the silica gel light isolation cushion 15 is abutted with the top of the rotating base 12, that is, the silica gel light isolation cushion 15 can be separated from the rotating base 12.

[0060] In some specific embodiments, the sensing assembly comprises:

[0061] A light sensing probe 16 is arranged in the central through hole 14 of the test table 4, and the light sensing end of the light sensing probe 16 corresponds to the distance sensor 2. The light sensing probe 16 is vertically arranged, and the side wall of the light sensing probe 16 is fixedly connected to the bottom of the test table 4.

[0062] An optical fiber 17 is connected to the light sensing probe 16 at one end, and the other end of the optical fiber 17 is connected with a spectrometer interface 18.

[0063] Specifically, the light sensing probe 16 coincides with the axis of the rotating base 12, and the light sensing probe 16 is used for detecting the spectral data of the measured object placed on the rotating base 12.

[0064] In some specific embodiments, a single-chip microcomputer and a display screen 19 are arranged on the control panel 6, and a state indicating lamp 20 and a control button 21 are further arranged on one side of the control panel 6.

[0065] In some specific embodiments, the distance sensor 2, the halogen lamp 3, the halogen lamp relay 5, the control panel 6, the steering engine 10, and the speed reducer 22 are electrically connected.

[0066] Specifically, the rotation angle provided by the steering engine 10 and the rotating base 12 is 360 degrees, and the content displayed on the display screen 19 includes the state of the halogen lamp relay 5, the value of the distance sensor 2, the diameter of the sugar core apple, the angle of the steering engine 10 and the rotating base 12, and the overall state identification of the test table. Two halogen lamps 3 are arranged corresponding to the rotating base 12, that is, the illumination end of the halogen lamp 3 is arranged towards the center of the rotating base 12 to irradiate the object to be measured.

[0067] Second embodiment:

[0068] According to the method for detecting the near-infrared spectrum and diameter of a rotating sugar core apple, the method comprises the following steps:

[0069] S1, placing the sugar core apple on the rotating base 12, connecting the spectrometer interface 18 to the spectrometer and starting the spectrum detection, and then placing the silica gel light-proof soft pad 15 between the sugar core apple and the rotating base 12. At this time, the distance sensor 2 will detect the diameter of the sugar core apple.

[0070] S2, pressing the start detection button, and the single-chip microcomputer controls the halogen lamp relay 5 to turn on the halogen lamp power supply so that the halogen lamp 3 is turned on.

[0071] S3, after the halogen lamp 3 is turned on for 5 seconds, the single-chip microcomputer controls the steering engine 10 and the speed reducer 22 to start the rotation of the rotating base 12. The rotating angle of the rotating base 12 is: first rotating clockwise by 360 degrees, and then rotating counterclockwise by 360 degrees.

[0072] S4, after the rotation is completed, waiting for 3 seconds, turning off the halogen lamp 3, and ending the spectrum detection.

[0073] Specifically, since the distance between the distance sensor 2 and the bottom rotating base 12 is constant, and when the sugar core apple is placed on the rotating base 12, the outer edge of the sugar core apple contacts the bottom of the rotating base 12. Therefore, the diameter of the object to be measured can be obtained by subtracting the distance detected by the distance sensor 2 from the fixed distance between the distance sensor 2 and the bottom rotating base 12.

[0074] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A test bench for detecting the near infrared spectrum and diameter of a sugar core apple in rotation, characterized in that, The utility model relates to a kind of test bench, including: Frame, the inner top wall of the frame is provided with distance sensor, the distance sensor mounting end is fixedly connected with the inner top wall of the frame, the distance sensor detection end is arranged towards below, the inner top of the frame is provided with halogen lamp; Supporting assembly, the supporting assembly is arranged in the bottom of the frame, the supporting assembly is arranged with two around the frame axis, the top of two supporting assemblies is fixedly connected with the bottom of test bench, and the halogen lamp relay and control panel are arranged on the test bench; Rotary assembly, the rotary assembly is arranged on the test bench; Induction assembly, the induction assembly is arranged corresponding to the rotary assembly, and the induction assembly is arranged on the bottom of the test bench; The supporting assembly includes: Connecting column, the connecting column is arranged in the bottom of the frame, and the connecting column is horizontally arranged, and the connecting column is fixedly connected with the inner wall of the frame at two ends respectively; Supporting column, the supporting column is arranged with two around the axis of the connecting column, and the bottom of two supporting columns is fixedly connected with the top surface of the connecting column, two supporting columns are arranged perpendicular to the connecting column, and the top of two supporting columns is fixedly connected with the bottom surface of the test bench; The rotary assembly includes: Steering wheel, the steering wheel is arranged on the bottom of the test bench, the steering wheel mounting end is fixedly connected with the bottom of test bench, the output shaft of the steering wheel is connected with the rotary end of speed reducer through gear meshing, the top of the rotary end of speed reducer is extended to the top of the test bench through the test bench, and the top of the rotary end of speed reducer is fixedly connected with first rotary gear, the first rotary gear is horizontally arranged, and the mounting end of the speed reducer is fixedly connected with the bottom of the test bench; Rotary base, the rotary base is arranged on one side of the first rotary gear, the bottom of the rotary base is fixedly connected with the top of the test bench, the side wall around the rotary base top rotary end is sleeved with second rotary gear, the second rotary gear inner wall is fixedly connected with the side wall of the rotary base top rotary end, and the first rotary gear is meshed with the second rotary gear; The rotary base top rotary end is provided with central through-hole; The induction assembly includes: Photosensitive probe, the photosensitive probe is extended to the central through-hole in the test bench, the photosensitive end of the photosensitive probe is arranged corresponding to the distance sensor, and the photosensitive probe is vertically arranged, and the side wall of the photosensitive probe is fixedly connected with the bottom of the test bench; Optical fiber, one end of the optical fiber is connected with the photosensitive probe, and the other end of the optical fiber is connected with optical spectrum instrument interface.

2. The experimental table for detecting the near infrared spectrum and diameter of sugar core apple according to claim 1, characterized in that, The frame is a cubic frame structure, a U-shaped frame is arranged in the frame, the U-shaped frame is arranged with an opening downward, the outer diameter of the U-shaped frame matches the inner diameter of the frame, the outer side wall of the U-shaped frame is fixedly connected with the inner wall of the frame, the frame and the U-shaped frame are coaxial, the distance sensor is arranged on the inner wall of the U-shaped frame, the mounting end of the distance sensor is fixedly connected with the inner wall of the U-shaped frame, the halogen lamp is symmetrically arranged with two around the distance sensor, and the mounting end of the halogen lamp is fixedly connected with the inner wall of the U-shaped frame, and the light wavelength of the halogen lamp is 260-850nm.

3. The experimental table for detecting the near infrared spectrum and diameter of sugar core apple according to claim 2, characterized in that, The test bench is horizontally arranged, and the side walls of the test bench are fixedly connected with the inner walls of the frame and the U-shaped frame, the halogen lamp relay and the control panel are arranged on the top surface of the test bench, and the bottom mounting end of the halogen lamp relay and the bottom mounting end of the control panel are fixedly connected with the top surface of the test bench.

4. The experimental table for detecting the near infrared spectrum and diameter of sugar core apple according to claim 1, characterized in that, The top of the rotating base is abutted with a silica gel light isolation soft pad, and the outer diameter of the silica gel light isolation soft pad matches the outer diameter of the rotating end of the top of the rotating base.

5. The experimental table for detecting the near infrared spectrum and diameter of sugar core apple according to claim 1, characterized in that, The control panel is provided with a single-chip microcomputer and a display screen, and the control panel is also provided with a state indicating lamp and a control button on one side.

6. The experimental table for detecting the near infrared spectrum and diameter of sugar core apple according to claim 1, characterized in that, The distance sensor, the halogen lamp, the halogen lamp relay, the control panel, the steering wheel and the speed reducer are electrically connected.

7. A method of detecting the near infrared spectrum and diameter of a coreless apple by rotation, characterized by, The application is applied to the experimental table for detecting the near-infrared spectrum and the diameter of the sugar core apple, and comprises the following steps: S1, the sugar core apple is placed on the rotating base, the spectrum instrument interface is connected to the spectrum instrument and the spectrum detection is started, then the silica gel light isolation soft pad is placed between the sugar core apple and the rotating base, and the distance sensor detects the diameter of the sugar core apple; S2, the start detection button is pressed, the single-chip microcomputer controls the halogen lamp relay to turn on the halogen lamp power supply so that the halogen lamp is turned on; S3, after the halogen lamp is turned on for 5 seconds, the single-chip microcomputer controls the steering wheel and the speed reducer to start the rotation of the rotating base, and the rotating angle of the rotating base is: first clockwise rotation 360 degrees, and then counterclockwise rotation 360 degrees; S4, after the rotation is completed, the halogen lamp is turned off after 3s, and the spectrum detection is ended.

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