JP5533116B2 - Inspection method and apparatus for contents of container - Google Patents

Description

  The present invention relates to a method and apparatus for inspecting liquid chemicals and foods contained in a packaged container, etc., and in particular, non-destructive, quick, simple, and inexpensive inspection of what has solidified due to the effects of various germs and the like. The present invention relates to an inspection method and an apparatus therefor.

  Patent Documents 1 and 2 are known as methods for detecting alterations such as coagulation due to contents contained in a packaged container, in particular, germs such as food and medicine. Since these methods use X-rays, they have the advantage that they can be inspected nondestructively even if the container is opaque. However, these methods need to be protected against exposure to the human body and are not easy methods. Also, X-ray tubes and X-ray CCDs are expensive, and these methods are difficult to say as inexpensive methods.

As another method, as disclosed in Patent Document 3, there is a method in which vibration is given to a part of a container by striking or the like and propagation of the vibration is measured in another part. However, in this method, the influence of the material of the container is large, and the vibration propagated on the surface of the container is also observed at the same time. Therefore, the ratio of the signal due to the vibration of the contents is reduced and the S / N is reduced. Deteriorate.
As another method, as disclosed in Patent Document 4, there is a method of placing a container on a table that is rotatably fixed by a torsion spring, and measuring the attenuation of the free rotation vibration. However, this method requires that the container has a rotating cross section. In this method, since the frictional force between the content to be measured and the inner surface of the container is very small, it is necessary to use a spring having a small spring constant, and it takes a relatively long time to measure the attenuation.

Japanese Patent No. 2931838 JP 2001-242100 A JP-A-10-33114 JP-A-2-236141

  The present invention has been made to solve the above-described problems of the prior art, and inspects liquid chemicals and foods contained in a packaged container and the like that has solidified due to the effects of various bacteria. The present invention relates to an inspection method and apparatus for non-destructive, quick, simple and inexpensive.

In order to solve the problem, the invention according to claim 1 irradiates light from a light source toward the liquid surface of the liquid content in the container, and receives light reflected by the liquid surface by a light receiving means. , to change the attitude of the container, based on received light amount of said light receiving means when changing the posture of the container, Runisaishi to determine the coagulation status of the content, is stopped by changing the attitude of said container A first determination method for determining a solidification state of the contents by comparing the received light amount obtained in advance with a preset threshold value, and changing the posture of the container before and after changing the posture of the container. A second determination method for determining a solidification state of the contents by comparing a difference between the received light amounts obtained at each time of stopping or a ratio of the received light amounts with a preset threshold value; and the container Of the received light amount obtained while changing the posture of The content is solidified by switching to a third determination method for approximating the conversion with a preset function and comparing the coefficient in the function with a preset threshold value to determine the solidified state of the content. a method of inspecting the contents of the container, characterized that you determine.
The invention according to claim 2, Rukoto be determined in the description of claim 1, wherein the first and the weighting for each of the determination result of the third determination method, a solidified state from the result of the weighted This is a method for inspecting the contents of a container.
The invention according to claim 3 is the contents of the container according to claim 1 or 2 , wherein the position of the container is changed while maintaining the position of the light source and the light receiving means with respect to the container. This is an inspection method for objects.

Also, the invention according to claim 4, characterized in that in the description of any one of claims 1 to 3, the main sensitivity wavelength of the main emission wavelength and the light receiving unit of the light source is a wavelength in the near infrared region It is the inspection method of the contents of the container.

Further, the invention according to claim 5 is reflected by the liquid surface, posture changing means for changing the posture of the container having the liquid content, a light source for irradiating light toward the liquid surface of the content, and the liquid surface A light receiving means for receiving light; and a determination means for determining the solidification state of the contents based on the amount of light received by the light receiving means when the posture changing means changes the posture of the container , The determination means compares the received light amount obtained when the posture of the container is changed and stopped, and a preset threshold value, and determines the solidification state of the contents; The difference between the received light amounts or the ratio of the received light amounts obtained before and after changing the posture and when the container is changed and stopped are compared with a preset threshold value to solidify the contents. Second determination means for determining the state of the container; Approximating the change in the amount of received light obtained while changing the force with a preset function, and comparing the coefficient in the function with a preset threshold value to determine the coagulation state of the contents a third judging means, and said third determination means from the first determining means, in the inspection apparatus of the contents of the container, characterized that you determine the coagulation status of the contents by switching is there.

The invention according to claim 6 is the method according to claim 5, wherein the determination results of the first to third determination means are weighted and the coagulation state is determined from the weighted results. It is the inspection apparatus of the contents of the container characterized.
The invention according to claim 7, in the description of claim 5 or 6, wherein the light source and the light receiving means, inspection of the contents of the container, characterized in that position with respect to the container respectively are fixed apparatus Ru der.

The invention according to claim 8 is characterized in that, in any one of claims 5 to 7 , the main light emission wavelength of the light source and the main sensitivity wavelength of the light receiving means are wavelengths in the near infrared region. This is an inspection device for the contents of a container.
In the invention according to claim 9 , in any one of claims 5 to 8 , the posture changing means is movably attached to a base serving as a fixed member and the base. And a movable base to which the container is attached, and an operating means for operating the movable base, wherein the light source and the light receiving means are each fixed to the movable base by a fixing member. This is an inspection device.

  According to the present invention, it is possible to perform non-destructive, quick, simple, and inexpensive inspection of the container contents coagulated due to the influence of various bacteria.

It is a figure showing the schematic structure of the inspection device of this embodiment. It is a figure explaining the principle of the test | inspection by an inspection apparatus. It is a characteristic view which shows the relationship between the inclination-angle of a container and the output voltage of a photosensor. It is another characteristic view which shows the relationship between the inclination-angle of a container, and the output voltage of a photo sensor. It is a flowchart which shows a series of operation | movement of an inspection apparatus.

The best mode of the present invention will be described below.
(Constitution)
FIG. 1 is a diagram illustrating a schematic configuration of an inspection apparatus 1 according to the present embodiment.
As shown in FIG. 1, the inspection apparatus 1 includes an inclination imparting device 10, a light source 20, a photosensor 30, and a PC (personal computer) 40.

The tilt imparting device 10 moves a movable base 12 that is movably attached to a base 11 that is a fixed member installed in another part such as a desk, a base 11 that is movable. And a drive unit 13.
In the present embodiment, the base 11 and the movable base 12 each have a substantially rectangular plate shape. The movable table 12 is formed with a rotating shaft 12a at one end portion in the long side direction and on both side surfaces in the short side direction. Correspondingly, the base 11 is formed with a support portion 11a that rotatably supports the rotary shaft 12a. Thereby, the movable stand 12 can be rotated within a certain range with respect to the base 11. The drive unit 13 is for rotating the movable base 12 and is, for example, a motor, an air cylinder, a weight, or the like connected to the rotary shaft 12a.

Needless to say, the base 11 and the movable base 12 are not limited to the shapes described above.
In the inclination imparting device 10 having such a configuration, the movable table 12 rotates with respect to the base 11 about the rotation shaft 12a (rotated in the direction of arrow A shown in FIG. 1) by driving the drive unit 13. . A container 100 to be inspected is placed on the movable table 12, and when the movable table 12 rotates, the posture of the container 100 is inclined.

  In addition, when there is a possibility that the container 100 slides with respect to the upper surface 12b of the movable table 12 when the movable table 12 rotates due to a small friction of the upper surface 12b of the movable table 12 on which the container 100 is placed, The inclination imparting device 10 (for example, the movable table 12) may include a fixing unit that fixes the container 100 to the movable table 12.

  The light source 20 irradiates light from the side of the container 100 placed on the movable table 12. The light source 20 is fixed to the movable table 12 by a fixing member 14. The light source 20 may be fixed without using the fixing member 14, for example, moved in conjunction with the rotation of the movable table 12 to maintain the position of the light source 20.

  The height of the light source 20 (for example, the distance from the movable table 12) is substantially the same as the height of the liquid surface 101a (dotted line shown in FIG. 1) of the contents 101 of the container 100. For example, the height of the light source 20 may be adjustable by adjusting the length of the fixing member 14. Further, it is desirable that the optical axis of the light source 20 is coincident with the radial direction when the movable table 12 rotates. For example, the light source 20 is a line light source in which a plurality of infrared LEDs are arranged in a row. For example, the peak wavelength (main emission wavelength) of an infrared LED is in the near infrared region, specifically 880 nm. Needless to say, the light source 20 is not limited to such a configuration.

  The photosensor 30 is disposed so as to face the upper surface 12 b of the movable table 12. For this reason, the photosensor 30 is fixed to the movable table 12 by the fixing member 15. Note that the position of the photosensor 30 relative to the movable base 12 may be maintained by being fixed without using the fixing member 14, for example, by being moved in conjunction with the rotation of the movable base 12.

  The photosensor 30 receives reflected light reflected by the container 100 (specifically, the content 101). The photosensor 30 outputs an electrical signal corresponding to the magnitude of the received light intensity. The electrical signal output from the photosensor 30 is taken into the PC 40.

  Further, a light shielding cover that covers the periphery of the photosensor 30 may be provided. In this case, the light shielding cover is also fixed to the movable base 12. This light-shielding cover can prevent ambient disturbance light from entering the photosensor 30 and can only allow the reflected light reflected by the contents 101 to enter the photosensor 30. It is preferable that In this embodiment, a visible light cut type phototransistor and a 10 KΩ resistor are connected in series with a peak wavelength of 880 nm, and a voltage of 5.0 V is applied from a DC stabilized power supply. Thereby, the reflected light amount change is converted into a voltage signal applied to the resistance by the photo sensor 30 and is taken into the PC 40.

  In the PC 40, the input voltage signal (electrical signal) is digitally converted by the built-in A / D conversion board and stored as voltage data at regular time intervals. And in PC40, the solidification state of the content 101 is determined based on the voltage data by the arithmetic processing part 40a which performs various arithmetic processing.

(Operation etc.)
In the inspection apparatus 1, after it is confirmed that the container 100 is placed on the movable table 12, the driving unit 13 is driven to rotate the movable table 12 to a preset angle (maximum tilt angle). At this time, the inspection apparatus 1 rotates the movable table 12 over a preset time (for example, 2 seconds) at a constant speed to a preset angle. Thereby, in conjunction with the rotation of the movable table 12, the light source 20 (specifically, its optical axis) and the photosensor 30 move, and the container 100 tilts.

  Here, at least the side surface and the upper surface of the container 100 to be inspected are made of a light-transmitting material. For example, the side surface and the upper surface of the container 100 are made of an opaque material but a material with high light transmission, such as paper and resin. The container 100 contains liquid chemicals or liquid foods as contents. The preset angle (maximum tilt angle) is, for example, 30 °.

  Then, the inspection apparatus 1 irradiates light from the light source 20 toward the container 100 when the movable table 12 is rotated (in the operation of tilting the container 100). At this time, in the inspection apparatus 1, the photosensor 30 receives the reflected light reflected by the container 100 (specifically, the content 101). The reflected light amount change at this time is converted into a voltage signal applied to the resistance by the photosensor 30 and is taken into the PC 40.

  In the PC 40, the input voltage signal is digitally converted by a built-in A / D conversion board, and is stored as voltage data at regular time intervals. In this embodiment, voltage data is obtained by sampling a voltage fluctuation during a time period (2 seconds) during which the container 100 is tilted at 10 Hz. In the PC 40, the solidification state of the contents 101 of the container 100 is determined by the arithmetic processing unit 40a based on the voltage data thus obtained. The principle of determining the solidification state will be described with reference to FIGS.

FIG. 2A shows a state in which the container 100 is horizontal, that is, the posture of the container 100 before the movable base 12 is rotated. FIG. 2B shows a state in which the container 100 is tilted, that is, the posture of the container 100 when the movable base 12 is rotated. Here, due to the structure of the inclination imparting device 1, the rotation direction is a direction in which the container 100 is inclined to the side opposite to the arrangement side of the light source 20.
As shown in FIG. 2A, the light emitted from the light source 20 located on the side of the container 100 enters the container 100. As a result, among the light incident on the container 100, the light incident on the space 102 above the content 101 formed between the container 100 and the content 101 is reflected on the incident side and the opposite side of the container 100. The light is scattered by the wall surfaces 100a and 100b, and a part of the scattered light reaches the upper wall 100c of the container 100. In addition, since the container 100 is horizontal, much of the light incident into the container 100 is incident into the contents 101, and the light depends on the color and transparency of the contents 101. Most of the content is absorbed in the content 101.

  On the other hand, as shown in FIG. 2B, the light emitted from the light source 20 enters the container 100. However, when the container 100 is inclined, the projected area of the space 102 with respect to the light source 20 is widened, or the projected area of the liquid surface 101a of the content 101 with respect to the light source 20 is widened, and enters the container 100. Most of the emitted light enters the space 102. As a result, the amount of reflected light on the liquid surface 101a of the content 101 increases, and the amount of light reaching the upper wall 100c of the container 100 increases. That is, the amount of light received by the photosensor 30 increases.

  Here, consider a case where the content 101 is solidified. In this case, since the fluidity of the content 101 changes (because the fluidity decreases), the change in the liquid level 101a of the content 101 in the process of increasing the tilt angle of the container 100 is the normal (good) content. The behavior of the object 101 is different from that of the liquid surface 101a. As a result, a difference also appears in the amount of light received by the photosensor 30 in the process of increasing the tilt angle of the container 100.

  FIG. 3 shows an example of the relationship between the tilt angle of the container 100 and the output voltage (equivalent to the amount of received light) of the photosensor 30. In FIG. 3, the solid line indicates the relationship obtained with the non-defective content 101, and the dotted line and the alternate long and short dash line indicate the relationship obtained with the solidified content 101. Specifically, the relationship indicated by the dotted line is a relationship obtained with the content 101 having a low degree of solidification, and the relationship indicated by the alternate long and short dash line is a relationship obtained with the content 101 having a high degree of solidification.

As shown in FIG. 3, in the case of non-defective contents 101 (in the case of the relationship shown by the solid line), the output voltage, that is, the amount of light received by the photosensor 30 increases as the tilt angle increases. This means that the liquid level 101a of the contents 101 is kept horizontal even when the tilt angle is increased.
In addition, when the content 101 is solidified (in the case of a relationship indicated by a dotted line or a one-dot chain line), the output voltage does not increase so much even if the tilt angle is increased as compared with the non-defective content 101. ing. This means that when the inclination angle of the container 100 is increased, the liquid level 101a of the content 101 is difficult to be maintained horizontally.

In particular, in the case of the content 101 having a high degree of solidification (in the case of the relationship indicated by the alternate long and short dash line), the output voltage hardly increases even when the inclination angle increases. This means that when the tilt angle of the container 100 is increased, the liquid level 101a of the contents 101 also changes accordingly.
As described above, when the content 101 is solidified, the fluidity is lowered and the change of the liquid level 101a is different. Thereby, the amount of light received by the photosensor 30 also changes. And in the inspection apparatus 1, the coagulation | solidification state of the content 101 of the container 100 is determined based on the voltage data at this time.

Based on the principle as described above, the arithmetic processing unit 40a determines the solidification state of the content 101 based on the voltage data. The specific determination method is as follows.
First, a determination method using voltage data obtained when the movable table 12 is stopped (when the movable table 12 is stopped at the maximum inclination angle) is as follows.
The arithmetic processing unit 40a obtains voltage data (output voltage, electrical signal) immediately after the movable table 12 is rotated and stopped (when stopped at the maximum inclination angle), and the voltage data (for example, the voltage value shown in FIG. 3). Vb, Vc, Vd) and a preset threshold value are compared.

Here, the preset threshold value is a value obtained by subtracting a certain margin from an average voltage value obtained for a non-defective sample.
The arithmetic processing unit 40a determines that the content 101 is solidified when the voltage data is equal to or less than a preset threshold value.
Moreover, the determination method using the difference or ratio of the voltage data obtained before rotation of the movable table 12 (before starting the tilting operation of the container 100 or without tilting) and each voltage data obtained when the movable table 12 is stopped. Is as follows.

The arithmetic processing unit 40a obtains voltage data before the movable table 12 is rotated and when the movable table 12 is stopped, and presets the difference (corresponding to the output voltage difference, equivalent to the electric signal difference) or the ratio of the voltage data. The threshold value is compared.
Here, the preset threshold value is a value obtained by subtracting a certain margin from an average value obtained by performing similar operations (subtraction, division) on a non-defective sample.

And the arithmetic processing part 40a determines with the content 101 having solidified, when the difference or ratio of voltage data is below the preset threshold value.
For example, when the relationship shown in FIG. 3 is obtained, the arithmetic processing unit 40a obtains the voltage value Va obtained when there is no inclination (0 °) and the stop at the maximum inclination angle (30 °). Vb−Va, Vc−Va, and Vd−Va, which are differences from the voltage values Vb, Vc, and Vd, are compared with preset threshold values. When the difference is equal to or less than a preset threshold value, the arithmetic processing unit 40a determines that the corresponding content 101 is solidified.

  In addition, the arithmetic processing unit 40a sets Vb / Va, Vc / Va, and Vd / Va in advance as ratios of the voltage value Va obtained when there is no inclination and the voltage values Vb, Vc, and Vd obtained when the maximum inclination angle is stopped. The threshold value is compared. When the ratio is equal to or less than a preset threshold value, the arithmetic processing unit 40a determines that the corresponding content 101 is solidified.

  Here, FIG. 4 shows an example of the relationship between the tilt angle of the container 100 and the output voltage of the photosensor 30. In FIG. 4, the solid line indicates the relationship obtained with the non-defective content 101, and the alternate long and short dash line indicates the relationship obtained with the solidified content 101. In this example, the amount of the non-defective content 101 is smaller than the amount of the solidified content 101. In this case, the output voltage for the non-defective contents 101 is generally smaller than the output voltage for the solidified contents 101 because the amount of light reflected from the liquid surface 101a is reduced due to the reduced amount. Get smaller.

  However, according to the determination method using the difference or ratio of each voltage data obtained before the rotation of the movable table 12 and when the maximum inclination angle of the movable table 12 is stopped, the voltage value obtained before the rotation (no inclination). Since the determination is based on the difference Ve2-Ve1, Vf2-Vf1 or the ratio Ve2 / Ve1, Vf2 / Vf1 between Ve1, Vf1 and each voltage value Ve2, Vf2 obtained when the maximum inclination angle is stopped, the amount of the content 101 The determination result can be obtained without being affected by the difference.

Moreover, the determination method using the voltage data obtained while the movable table 12 is rotating (while the inclination angle of the container 100 is changing) is as follows.
The arithmetic processing unit 40a obtains voltage data while the movable table 12 is rotating, and formulates changes in the voltage data. Specifically, the arithmetic processing unit 40a approximates changes in the voltage data as a function by curve fitting. And the arithmetic processing part 40a compares the coefficient in the function, and a threshold value, and determines the solidification state of the content 101. FIG.

Specifically, in the arithmetic processing unit 40a, a change in voltage data is defined by a function such as the following equation.
Y (t) = k · exp (a · θ)
Here, θ is the rotation angle of the movable table 12 or the inclination angle of the container 100. a and k are constants. Then, the arithmetic processing unit 40a calculates the constant a in the function defined as described above by using the least square approximation. Thereby, the arithmetic processing unit 40a determines that the content 101 is solidified when the calculated constant a is equal to or less than a preset threshold value. Here, the preset threshold value is a value obtained by subtracting a certain margin from the average value obtained from the non-defective samples.

Such a determination method has the effect of not being affected by the amount of the content 101 as described with reference to FIG. 4 and can obtain evaluation values from a large number of data. Thereby, more stable determination is possible.
It should be noted that the solidification state of the content 101 may be determined by arbitrarily switching the above-described three kinds of determination methods. Each determination result is weighted using all the determination methods, and the weighted result is used. You may make it finally determine a coagulation | solidification state.

FIG. 5 shows a series of operations of the inspection apparatus 1 incorporating the above determination processing.
As shown in FIG. 5, first, in step S1, the light source 20 starts irradiating light toward the container 100, and the photosensor 30 starts receiving light.
In the subsequent step S2, the PC 40 converts the voltage signal output from the photosensor 30 into voltage data, and starts storing the voltage data.

In subsequent step S <b> 3, the drive unit 13 starts rotating the movable table 12. And the process started by the above step S1 thru | or step S3 by step S4 is implemented until the rotation angle of the movable stand 12 becomes the maximum rotation angle (equivalent to the maximum inclination angle).
Then, when the inclination angle of the container 100 reaches the maximum inclination angle (when the rotation of the movable table 12 is stopped), the arithmetic processing unit 40a proceeds to step S5 and solidifies the contents 101 by the above-described various determination methods. Determine the state.

As described above, the inspection apparatus 1 irradiates light from the light source 20 onto the liquid surface 101a of the content 101 in the container 100, and receives the light reflected by the liquid surface 101a by the photosensor 30, while providing the inclination imparting device. 10, the attitude (specifically, the inclination) of the container 100 is changed while maintaining the positions of the light source 20 and the photosensor 30 with respect to the container 100.
And the inspection apparatus 1 determines the coagulation | solidification state of the content 101 based on the output voltage from the photosensor 30 when the attitude | position of the container 100 is changed by PC40 (arithmetic processing part 40a).

As described above, the inspection device 1 includes the inclination imparting device 10, the light source 20, the photosensor 30, and the PC 40, and non-destructive, quick, and simple inspection of the coagulation state of the content 101 due to the influence of various germs and the like. Can be inspected inexpensively.
That is, the inspection apparatus 1 is non-destructive for measuring the amount of light transmitted through the container 100, and is as fast as about 1 or 2 seconds from the start of tilting of the container 100 to the end of the inspection, and almost includes human bodies. The light source 20 and the photosensor 30 that are widely used are simple because there is no need for regulation and protection in accordance with laws and regulations, and the structure of the tilting device 10 is simple. , And the combination of the PC 40, and the apparatus is inexpensive.

In addition, since the inspection apparatus 1 observes only the behavior of the contents 101, it is not affected by the material and shape of the container 100, and since it uses an inclination, it can be inspected even with a non-rotating cross-section container.
In addition, since the inspection apparatus 1 does not apply violent movement to the contents 101, it is possible to inspect for a type of solidification that is loosely solidified or a film is stretched only on the surface.

Further, as described above, the inspection apparatus 1 determines the coagulation state of the content 101 from the change in the voltage data by various determination methods.
Thereby, the inspection apparatus 1 can determine the coagulation state of the contents 101 with a simple configuration that only detects a change in voltage data.
Further, as described above, the optical axis of the light source 20 coincides with the radial direction when the movable table 12 rotates. Thereby, in the inspection apparatus 1, the amount of light received by the photosensor 30 can be increased, and the amplitude of the voltage signal from the photosensor 30 can be increased. As a result, the inspection apparatus 1 can determine the coagulation state with high accuracy by using such a voltage signal.

  In this embodiment, the inclination imparting device 10 is used as the posture changing means. Further, a photosensor 30 is used as the light receiving means. Moreover, PC40 (arithmetic processing part 40a) is used as a determination means.

(Modification of this embodiment)
In a modification of the present embodiment, a plurality of containers may be placed on the movable base 12 at the same time, and voltage data may be obtained simultaneously by a plurality of photosensors corresponding to the containers. Thereby, the inspection apparatus 1 can aim at the efficiency improvement of the inspection of the contents of the container.

Further, in the modification of the present embodiment, the positions of the light source 20 and the photosensor 30 with respect to the container 100 are set as long as the same operations and effects as when the positions of the light source 20 and the photosensor 30 with respect to the container 100 can be obtained. It may not be fixed.
Moreover, in the modification of this embodiment, the container may be opened without a wall surface or a lid on the upper surface.

  The present invention can be used for the inspection of liquid chemicals and foods enclosed in a packaged container 100, and in particular, non-destructive, quick, simple, and inexpensive inspection of what has solidified due to the effects of various bacteria etc. It can be used for any purpose.

  DESCRIPTION OF SYMBOLS 1 Inspection apparatus, 10 Inclination provision apparatus, 11 Base, 12 Movable base, 13 Drive part, 14, 15 Fixed member, 20 Light source, 30 Photosensor, 40 PC, 40a Arithmetic processing part

Claims (9)

Light is irradiated from a light source toward the liquid level of the liquid content in the container, and the light reflected by the liquid surface is received by a light receiving means, and the attitude of the container is changed, and the attitude of the container is changed. based on the received light amount of said light receiving means when brought into, Runisaishi to determine the coagulation status of the content,
A first determination method for comparing the received light amount obtained when the posture of the container is changed and stopped and a preset threshold value to determine a solidified state of the contents;
Compare the difference between each received light amount or the ratio of each received light amount before and after changing the posture of the container and when stopping and changing the posture of the container, and the contents A second determination method for determining the solidification state of the object;
Approximating the change in the amount of received light obtained while changing the posture of the container with a preset function, comparing the coefficient in the function with a preset threshold value, the solidification state of the contents A third determination method for determining
Inspection method of the contents of the container, characterized in that you determine the coagulation status of the contents by switching. The method for inspecting the contents of a container according to claim 1, wherein the determination result of each of the first to third determination methods is weighted, and the coagulation state is determined from the weighted result. 3. The container content inspection method according to claim 1, wherein the posture of the container is changed while maintaining the positions of the light source and the light receiving unit with respect to the container. The main sensitivity wavelength inspection method of the contents of the container according to any one of claims 1 to 3, characterized in that the wavelength of the near infrared region of the main emission wavelength and the light receiving unit of the light source. Posture changing means for changing the posture of the container having the liquid content;
A light source that emits light toward the liquid surface of the contents;
A light receiving means for receiving the light reflected by the liquid surface;
Determination means for determining a solidification state of the contents based on the amount of light received by the light receiving means when the posture changing means changes the posture of the container;
Equipped with a,
The determination means includes
A first determination means for comparing the amount of received light obtained when the container is changed and stopped and a preset threshold to determine a solidification state of the contents;
Compare the difference between each received light amount or the ratio of each received light amount before and after changing the posture of the container and when stopping and changing the posture of the container, and the contents Second determination means for determining the solidification state of the object;
Approximating the change in the amount of received light obtained while changing the posture of the container with a preset function, comparing the coefficient in the function with a preset threshold value, the solidification state of the contents And a third determination means for determining
Inspection apparatus of the contents of the container, characterized in that you determine the coagulation status of the contents from the first determination means switches the third judging means. 6. The container contents inspection apparatus according to claim 5, wherein the determination results of the first to third determination means are weighted, and the coagulation state is determined from the weighted results. 7. The container content inspection apparatus according to claim 5 , wherein the light source and the light receiving means are fixed in position with respect to the container. The container content inspection apparatus according to any one of claims 5 to 7 , wherein the main light emission wavelength of the light source and the main sensitivity wavelength of the light receiving means are wavelengths in the near infrared region. The posture changing means includes a base that is a member on the fixed side, a movable base that is movably attached to the base, and to which the container is attached, and an operating means that operates the movable base,
The container content inspection apparatus according to any one of claims 5 to 8 , wherein the light source and the light receiving means are each fixed to the movable table by a fixing member.

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