Vibration measuring device and system equipped therewith

Abstract

Unlike light points whose position does not change before and after vibration is applied to the holder, the aperture pattern changes shape when vibration is applied to the holder. By detecting this change, the direction and magnitude of the vibration can be determined. [Solution] A vibration measuring device used in an incubator equipped with a vibration generating device that vibrates a retainer while holding multiple fertilized eggs in the retainer, comprises a light source unit that irradiates a laser beam onto an aperture pattern formed in the retainer, and a detection unit that detects the change in the aperture pattern with respect to the light points formed by the laser beam from the light source unit when the retainer is vibrated, or the appearance of the laser beam that passes through the aperture pattern when the retainer is vibrated.

Description

Technical Field

[0001] The present disclosure relates to a vibration measurement device used in an incubator equipped with a vibration generator that vibrates a holder while holding a plurality of fertilized eggs in the holder to apply vibration to the fertilized eggs, and a system including the same.

Background Art

[0002] When hatching fertilized eggs of poultry, a method of controlling the ratio of male and female chicks hatched by applying vibration to the fertilized eggs is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In this method, for example, in order to bring the hatching rate of female chicks close to 100%, it is necessary to precisely control the frequency of the vibration applied to the fertilized eggs. However, since it is necessary to use an expensive detection device to accurately measure the frequency of the vibration applied to the fertilized eggs, it has been difficult to introduce in terms of cost.

[0005] An object of the present disclosure is to provide a vibration measurement device that can easily detect vibration applied from a vibration generator to fertilized eggs in an incubator equipped with the vibration generator.

Means for Solving the Problems

[0006] A vibration measurement device according to an embodiment of the present disclosure is a vibration measurement device used in an incubator equipped with a vibration generator that vibrates a holder while holding a plurality of fertilized eggs in the holder to apply vibration to the fertilized eggs, A light source unit that irradiates laser light onto the aperture pattern formed in the holder, A detection unit that detects the change in the aperture pattern with respect to the light point formed by the laser light from the light source when the holder is vibrated, or the appearance of the laser light passing through the aperture pattern when the holder is vibrated, It is equipped with. [Effects of the Invention]

[0007] According to this disclosure, in a configuration in which changes in the aperture pattern for light spots formed on a fertilized egg by laser light from a light source when a holder is vibrated, the position of the light spots does not change before and after vibration of the holder, but the shape of the aperture pattern changes when the holder is vibrated. By detecting this change with a detection unit, the direction and magnitude of the vibration can be determined. In a configuration in which the appearance of the laser light transmitted through the aperture pattern is detected when the holder is vibrated, the appearance of the transmitted light changes when the holder is vibrated, and by detecting this change in appearance, the direction and magnitude of the vibration can be determined. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a functional block diagram showing an example of the system related to this disclosure. [Figure 2] Figure 2 shows the specific configuration of the incubator 100A and the vibration measuring device 200A. [Figure 3] Figure 3 is a view from below of the opening pattern 124A-1 when the retainer 120A is not being vibrated. [Figure 4] Figure 4 is a view from below of the opening pattern 124A-1 while the retainer 120A is being vibrated. [Figure 5] Figure 5 shows an opening pattern 124A-1 related to another example, viewed from below with the retainer 120A not vibrating. [Figure 6]Figure 6 shows the specific configuration of an incubator 101A and a vibration measuring device 201A according to yet another example. [Figure 7] Figure 7 shows another example of the opening pattern 524A-1, viewed from above with the retainer 120A not vibrating. [Modes for carrying out the invention]

[0009] Hereinafter, a vibration measuring device and a system equipped therewith according to one embodiment of the present disclosure will be described with reference to the drawings. Figure 1 is a functional block diagram showing an example of the system according to the present disclosure. System 1 is a system used to control the ratio of males and females of chicks hatched by applying vibration to fertilized eggs when hatching fertilized eggs of poultry. As shown in Figure 1, it comprises incubators 100A to 100C that hold multiple fertilized eggs and apply vibration to the fertilized eggs, and vibration measuring devices 200A to 200C. In this example, the system is configured with three units (three stages) of incubators 100A and vibration measuring devices 200A as constituent units, but this is just an example, and the number of constituent units of System 1 can be arbitrarily increased or decreased. Incubators 100A to 100C comprise retainers 120A to 120C that hold fertilized eggs, and vibration generators 110A to 110C that apply vibration to retainers 120A to 120C. Furthermore, the vibration measuring devices 200A to 200C include light source units 210A to 210C and detection units 220A to 220C. Alternatively, for example, a single vibration generator 110A may be configured to apply vibration to multiple retainers 120A, or a single vibration measuring device 200A may be configured to detect vibrations from multiple retainers 120A.

[0010] Figure 2 shows the specific configuration of the incubator 100A and the vibration measuring device 200A. Figure 2 is a side view of the incubator 100A and the vibration measuring device 200A. In the following description, the incubator 100A and the vibration measuring device 200A, which are constituent units of System 1, will be described in detail, and the incubators 100B and 100C and the vibration measuring devices 200B and 200C will not be described as they have the same configuration as the incubator 100A and the vibration measuring device 200A.

[0011] In the incubator 100A, the retainer 120A is equipped with a plurality of storage recesses 122A-1 to 122A-4. The plurality of storage recesses 122A-1 to 122A-4 have a shape on their upper side that corresponds to the outer shape of the fertilized eggs E1 to E4, so that they can hold a plurality of fertilized eggs E1 to E4. In addition, the bottom of each of the plurality of storage recesses 122A-1 to 122A-4 is provided with a plurality of opening patterns 124A-1 to 124A-4 that penetrate in the vertical direction. Therefore, when the retainer 120A is viewed from the bottom side with fertilized eggs E1 to E4 stored in each of the plurality of storage recesses 122A-1 to 122A-4, the bottom surfaces of the fertilized eggs E1 to E4 are exposed through the opening patterns 124A-1 to 124A-4.

[0012] In the vibration measuring device 200A, the light source unit 210A includes a laser light source 212A and a light guide 214A. The laser light source 212A is located to the side of the light guide 214A and emits laser light toward the side of the light guide 214A. The light guide 214A is located below the holder 120A and guides the laser light so that the laser light emitted from the laser light source 212A and incident from the side irradiates the aperture patterns 124A-1 to 124A-4 of the holder 120A. In the illustrated example, the light guide 214A guides the laser light so that the laser light irradiates the surface of fertilized eggs E1 to E4 via the aperture patterns 124A-1 to 124A-4. Thus, in this example, since the laser light source 212A is located to the side of the light guide 214A, the vertical dimension of the vibration measuring device 200A can be reduced compared to the case where the laser light source 212A is located below the light guide 214A.

[0013] The light guide 214A has a plurality of steps 216A-1 to 216A-4 arranged in the direction of laser light emission from the laser light source 212A. Each of these steps 216A-1 to 216A-4 reflects a portion of the laser light emitted from the laser light source 212A, thereby splitting the laser light into multiple laser beams. These split laser beams are then guided through aperture patterns 124A-1 to 124A-4 so that they are irradiated toward the bottom surfaces of fertilized eggs E1 to E4. The laser beams irradiated toward the bottom surfaces of fertilized eggs E1 to E4 form a light spot on the bottom surface of each fertilized egg E1 to E4. Thus, in this example, since the laser light is split by multiple steps 216A-1 to 216A-4, it is not necessary to provide a separate laser light source for each aperture pattern.

[0014] The detection unit 220A includes an imaging unit 222A and a mirror 224A. The imaging unit 222A images the aperture patterns 124A-1 to 124A-4 formed on the bottom surface of the holder 120A and the light spots formed on the bottom surface of the fertilized eggs E1 to E4 from diagonally below the holder 120A. The mirror 224A reflects images toward the imaging unit 222A so that images of some of the aperture patterns 124A-1 to 124A-4 and some of the light spots that cannot be directly imaged due to the constraints of the imaging unit 222A's field of view (imaging range) and imaging direction can be imaged by the imaging unit 222A. For example, the mirror 224A is provided on the opposite side from the imaging unit 222A and facing the imaging unit 222A. For the imaging unit 222A, a video camera with a frame rate of approximately 30 fps is preferably used, but the frame rate and resolution are not particularly limited as long as they allow for the distinction between the aperture patterns 124A-1 to 124A-4 and the images of the light points before and after the holder 120A, which will be described later, is vibrated.

[0015] FIG. 3 is a view of the aperture pattern 124A-1 in a state where the holder 120A is not vibrating, as seen from below. As shown in FIG. 3, when viewing the aperture pattern 124A-1 from below (bottom side) of the holder 120A, from the edge of the circular aperture 126A, along the X direction shown in FIG. 3, a pair of protrusions 128A protrude inward such that the tips thereof face each other, and along the Y direction shown in FIG. 3, a pair of protrusions 128A protrude inward such that the tips thereof face each other. In a state where no vibration is applied from the vibration generating device 110A to the holder 120A, as shown in FIG. 3, the pair of protrusions 128A along the X direction and the pair of protrusions 128A along the Y direction are at positions substantially the same as the outer periphery of the light spot LP formed on the bottom surface of the fertilized egg E1 at their tip portions. Also, the line widths of each of the pair of protrusions 128A along the X direction and the pair of protrusions 128A along the Y direction appear to be equal.

[0016] FIG. 4 is a view of the aperture pattern 124A-1 in a state where the holder 120A is vibrating, as seen from below. As shown in FIG. 4, in a state where vibration having an amplitude in the Y direction as shown in FIGS. 3 and 4 is applied from the vibration generating device 110A to the holder 120A, the light spot LP has the same shape as the light spot LP shown in FIG. 3, whereas the pair of protrusions 128A along the X direction appears to become thicker in the Y direction by vibrating in the Y direction according to the amplitude of the vibration by the vibration generating device 110A.

[0017] The light source unit 210A and the detection unit 220A are fixed to a frame or the like not shown, whereas the holder 120A is vibrated by the vibration generating device 110A. That is, even when the vibration generating device 110A generates vibration, the light source unit 210A and the detection unit 220A do not relatively displace with respect to each other, so the light spot LP does not relatively displace with respect to the imaging unit 222A, and thus the way the light spot LP is seen by the imaging unit 222A does not change in position or shape.

[0018] On the one hand, when the vibration generator 110A generates vibration, the holder 120A undergoes relative displacement with respect to the detection unit 220A. At this time, the pair of protruding portions 128A along the Y direction vibrate in the Y direction according to the amplitude of the vibration generated by the vibration generator 110A, so that, compared to the state where the holder 120A is not vibrating, they protrude inside the opening 126A and a part of the tip seems to overlap the light spot LP.

[0019] In this example, the frequency of the vibration applied from the vibration generator 110A to the holder 120A is 100 Hz to 1200 Hz. If the frame rate of the imaging unit 222A is about 30 fps, the image of the aperture pattern 124A-1 captured by the imaging unit 222A is almost the same as that in FIG. 4. For example, assuming that FIG. 4 shows an image of the aperture pattern 124A-1 captured by the imaging unit 222A in a state where the vibration in the Y direction from the vibration generator 110A is accurately transmitted to the holder 120A. Then, when the vibration direction from the vibration generator 110A is transmitted to the holder 120A so as to be different from the Y direction, the image of the aperture pattern 124A-1 captured by the imaging unit 222A is different from that in FIG. 4. For example, an image is captured by the imaging unit 222A in which one of the pair of protruding portions 128A along the X direction appears to be thicker than the other in the Y direction, or one of the pair of protruding portions 128A along the Y direction overlaps the light spot LP more than the other.

[0020] Also, when the vibration of a desired amplitude is not transmitted to the holder 120A, the line width of the protruding portion 128 extending in the direction intersecting the vibration direction appears different from the line width in FIG. 4. For example, when the vibration in the Y direction from the vibration generator 110A is not well transmitted to the holder 120A, the line width of the protruding portion 128A extending in the X direction appears thinner than the example shown in FIG. 4.

[0021] In this example, the light spots LP are formed on the bottom surface of fertilized eggs E1-E4. While the surface of fertilized eggs E1-E4 is white or brown, it is preferable to color the protrusion 128A of the retainer 120A with a color that provides a high contrast to fertilized eggs E1-E4, such as black. This makes it easier to clearly distinguish the surface of fertilized eggs E1-E4 from the protrusion 128A.

[0022] Thus, in System 1 of this example, the imaging unit 222A can detect changes corresponding to the vibration direction and amplitude, making it possible to determine whether the vibration from the vibration generator 110A is being transmitted to the retainer 120A with the correct vibration direction and amplitude, using an inexpensive camera. In this example, the protrusion direction from the opening 126A of the protrusion 128A was the X and Y directions as shown in Figures 3 and 4, but it is not limited to these. It is preferable to set the protrusion direction from the opening 126A of the protrusion 128A to a direction suitable for detecting the vibration according to the direction of the vibration from the vibration generator 110A.

[0023] Furthermore, in this example, even when vibrations from the vibration generator 110A act on the retainer 120A, the shape and position of the light point LP do not change. Therefore, the vibration direction and amplitude of the retainer 120A can be determined by the change in the appearance of the protrusion 128A relative to the light point LP when vibrations from the vibration generator 110A act on the retainer 120A.

[0024] Figure 5 is a view from below of another example of the aperture pattern 124A-1, with the retainer 120A not vibrating. In this example of the aperture pattern 124A-1, the aperture 126A is the same as in the examples shown in Figures 3 and 4, but as shown in Figure 5, it has a central part 130A located in the center of the aperture 126A, which is approximately the same size as the light point LP, and a linear support part 132A that extends inward from the edge of the aperture 126A and whose tip is connected to the central part 130A. In this example, four support parts 132A extend from the edge of the aperture 126A along the X and Y directions shown in Figure 5, and support the central part 130A.

[0025] When the retainer 120A is not vibrating, as shown in Figure 5, the central part 130A overlaps with the light point LP, and the periphery of the light point LP is slightly visible outside the outer circumference of the central part 130A. When the retainer 120A is vibrated in this state, the support part 132A twists due to the vibration, causing the central part 130A to deform or move, resulting in a change in how the central part 130A and the light point LP overlap. For example, when the retainer 120A is vibrated, if the central part 130A is displaced to the lower left due to the twisting of the support part 132A compared to the state when it is not vibrating, the light point LP will be visible outside the lower right arc of the central part 130A. Depending on the vibration state of the retainer 120A, the twisting support part 132A changes, or the degree of twisting changes, and the direction and magnitude of the displacement of the central part 130A change.

[0026] In this example, by capturing an image of the overlap between the central part 130A and the optical dot LP when the vibration from the vibration generator 110A is accurately transmitted to the retainer 120A, the imaging unit 222A captures an image of the overlap between the central part 130A and the optical dot LP. If the vibration from the vibration generator 110A is not transmitted to the retainer 120A with the correct vibration direction and amplitude, the image of the overlap between the central part 130A and the optical dot LP captured by the imaging unit 222A will change compared to the case where the vibration from the vibration generator 110A is transmitted to the retainer 120A with the correct vibration direction and amplitude. In this example, the vibration measuring device 200A can detect this change and determine that the vibration from the vibration generator 110A is transmitted to the retainer 120A with a change in the correct vibration direction and magnitude.

[0027] Figure 6 shows the specific configuration of an incubator 101A and vibration measuring device 201A according to yet another example. In the incubator 101A and vibration measuring device 201A shown in Figure 6, the same reference numerals are used for components that are the same as those shown in Figure 2, and their explanation is omitted. In this example, the opening patterns 524A-1 to 524A-4 are not located at the bottom of the multiple housing recesses 122A-1 to 122A-4, but are provided to the sides of each of the housing recesses 122A-1 to 122A-4. In addition, imaging units 226A-1 to 226A-4 are provided above the opening patterns 524A-1 to 524A-4.

[0028] Figure 7 is a view of the aperture pattern 524A-1 from above, with the retainer 120A not vibrating, in the configuration shown in Figure 6. In Figure 7, components identical to those shown in Figures 3 to 5 are given the same reference numerals and their explanations are omitted. As shown in Figure 7, the aperture pattern 524A-1 has an opening 526A, a shielding portion 530A, and a support portion 532A. The opening 526A penetrates from the top to the bottom of the retainer 120A and is located on the path of the laser light from the laser light source 212A. In this example, the light source 210A irradiates the aperture patterns 524A-1 to 524A-4 formed on the retainer 120A with laser light. The shielding portion 530A is located in the center of the opening 526A and is configured to shield most of the laser light passing through the opening 526A from the bottom to the top of the retainer 120A, allowing only a portion to pass through. The support portion 532A is a linear member that extends inward from the edge of the opening 526A and whose tip connects to the shielding portion 530A. In this example, four support portions 532A extend from the edge of the opening 526A along the X and Y directions shown in Figure 7, supporting the shielding portion 530A.

[0029] The imaging unit 226A-1, located above the opening 526A in the aperture pattern 124A-1, captures an image of the laser light that has been transmitted through the opening 526A from the bottom to the top of the holder 120A without being shielded by the shielding unit 530A. In this example, as shown in Figure 7, the laser light LP' is slightly visible outside the outer circumference of the shielding unit 530A, and this is captured by the imaging unit 222A. When the holder 120A is vibrated in this state, the support unit 532A twists due to the vibration, causing the shielding unit 530A to deform or move, and as a result, a change occurs in the image of the laser light LP' visible from outside the outer circumference of the shielding unit 530A. In this example as well, by capturing an image of the laser beam LP' when the vibration from the vibration generator 110A is accurately transmitted to the retainer 120A using the imaging unit 226A-1, if the vibration from the vibration generator 110A is not transmitted to the retainer 120A in the correct direction and amplitude, the image of the laser beam LP' captured by the imaging unit 226A-1 will change compared to the case where the vibration from the vibration generator 110A is transmitted to the retainer 120A in the correct direction and amplitude. In this way, even in this example, by capturing this change, it is possible to determine whether the vibration from the vibration generator 110A is transmitted to the retainer 120A with a change in the correct direction and amplitude.

[0030] While embodiments of this disclosure have been described above, it goes without saying that the technical scope of this disclosure should not be interpreted restrictively by the description of these embodiments. These embodiments are merely examples, and it will be understood by those skilled in the art that various modifications to the embodiments are possible within the scope of the invention described in the claims. The technical scope of this disclosure should be determined based on the scope of the invention described in the claims and the scope of its equivalents.

[0031] This disclosure includes the following aspects: (1) A vibration measuring device used in an incubator equipped with a vibration generating device that vibrates a holder while holding multiple fertilized eggs in the holder, thereby vibrating the holder, A light source unit that irradiates laser light onto the aperture pattern formed in the holder, A detection unit that detects the change in the aperture pattern with respect to the light point formed by the laser light from the light source when the holder is vibrated, or the appearance of the laser light passing through the aperture pattern when the holder is vibrated, A vibration measuring device equipped with the following features. (2) When the detection unit detects a change in the aperture pattern with respect to the light point formed by the laser light from the light source when the retainer is vibrated, The light source unit irradiates the surface of the fertilized egg held by the holder with laser light to form the light spot on the surface. The aperture pattern has an opening that exposes the surface on which the light point is formed, and a plurality of protrusions that project inward from the opening in different directions. (1) The vibration measuring device described above. (3) When the detection unit detects a change in the aperture pattern with respect to the light point formed by the laser light from the light source when the retainer is vibrated, The light source unit irradiates the surface of the fertilized egg held by the holder with laser light to form the light spot on the surface. The aforementioned opening pattern is The opening and A central portion, which is approximately the same size as the light point, is provided in the center of the aforementioned opening, It has a linear support portion that extends from the edge of the opening and supports the central portion, The vibration measuring device according to (1), wherein the detection unit detects the displacement of the central part relative to the light point due to vibration. (4) When the detection unit detects a change in the aperture pattern with respect to the light point formed by the laser light from the light source when the retainer is vibrated, The aforementioned light source unit is A laser light source, The system includes a light guide that guides the laser light emitted from the laser light source so that it irradiates the surface of the fertilized egg, The light guide has a plurality of steps arranged in the direction of emission of the laser light source, The vibration measuring apparatus according to (1), wherein the plurality of steps include splitting the laser light emitted from the laser light source into a plurality of laser beams and reflecting the laser beams to guide them toward a plurality of fertilized eggs. (5) The opening pattern is provided on the bottom surface of the retainer, The light guide is provided below the holder, The vibration measuring device according to (4), wherein the laser light source is provided on the side of the light guide and emits laser light toward the side of the light guide. (6) When the detection unit detects a change in the aperture pattern with respect to a light point formed by the laser light from the light source when the holder is vibrated, The detection unit is Imaging unit, It includes a mirror that reflects the image including the aperture pattern and the light points toward the imaging unit, The mirror is provided to reflect the images of the aperture pattern and the light points that do not directly enter the field of view of the imaging unit and guide them to the imaging unit. (1) The vibration measuring device described above. (7) When the detection unit detects how light passes through the aperture pattern when the retainer is vibrated, The aperture pattern comprises an opening provided on the path of the laser light from the light source to the detection unit, and a shielding portion provided to transmit only a portion of the laser light. (1) The vibration measuring device described above. (8) A system comprising an incubator that holds multiple fertilized eggs and applies vibration to the fertilized eggs, and a vibration measuring device used in the incubator, The aforementioned incubator is Multiple retainers for holding the fertilized egg, The system includes a vibration generating device that applies vibration to the plurality of holders, The vibration measuring device, A light source unit that irradiates laser light onto the aperture pattern formed in the holder, A detection unit that detects the change in the aperture pattern with respect to the light point formed by the laser light from the light source when the holder is vibrated, or the appearance of the laser light passing through the aperture pattern when the holder is vibrated, Equipped with system. [Explanation of symbols]

[0032] 1: System 100A, 100B, 100C, 101A: Incubator 110A, 110B, 110C: Vibration generator 120A, 120B, 120C: Retainer 122A-1~122A-4: Recessed compartments 124A-1~124A-4: Opening Pattern 126A, 526A: Opening 128A:Protrusion 130A: Central part 132A, 532A: Support part 200A, 200B, 200C, 201A: Vibration measurement device 210A, 210B, 210C: Light source section 212A: Laser light source 214A: Light guide 216A-1~216A-4: Step 220A, 220B, 220C: Detection unit 222A, 226A-1~226A-4: Imaging unit 224A: Miller 530A: Shielding part E1~E4: Fertilized egg LP: Light spot LP: Laser light

Claims

1. A vibration measuring device used in an incubator equipped with a vibration generating device that vibrates a holder while holding multiple fertilized eggs in the holder, thereby vibrating the holder, A light source unit that irradiates laser light onto the aperture pattern formed in the holder, A detection unit that detects the change in the aperture pattern with respect to the light point formed by the laser light from the light source when the holder is vibrated, or the appearance of the laser light passing through the aperture pattern when the holder is vibrated, A vibration measuring device equipped with the following features.

2. When the detection unit detects a change in the aperture pattern with respect to a light point formed by the laser light from the light source unit when the retainer is vibrated, The light source unit irradiates the surface of the fertilized egg held by the holder with laser light to form the light spot on the surface. The aperture pattern has an opening that exposes the surface on which the light point is formed, and a plurality of protrusions that project inward from the opening in different directions. The vibration measuring device according to claim 1.

3. When the detection unit detects a change in the aperture pattern with respect to a light point formed by the laser light from the light source unit when the retainer is vibrated, The light source unit irradiates the surface of the fertilized egg held by the holder with laser light to form the light spot on the surface. The aforementioned opening pattern is The opening and A central portion, which is approximately the same size as the light point, is provided in the center of the aforementioned opening, It has a linear support portion that extends from the edge of the opening and supports the central portion, The vibration measuring device according to claim 1, wherein the detection unit detects the displacement of the central part relative to the light point due to vibration.

4. When the detection unit detects a change in the aperture pattern with respect to a light point formed by the laser light from the light source unit when the retainer is vibrated, The aforementioned light source unit is A laser light source, The system includes a light guide that guides the laser light emitted from the laser light source so that it irradiates the surface of the fertilized egg, The light guide has a plurality of steps arranged in the direction of emission of the laser light source, The vibration measuring device according to claim 1, wherein the plurality of steps involve splitting the laser light emitted from the laser light source into a plurality of laser beams and reflecting the laser beams to guide them toward a plurality of fertilized eggs.

5. The aforementioned opening pattern is provided on the bottom surface of the retainer. The light guide is provided below the holder, The vibration measuring device according to claim 4, wherein the laser light source is provided to the side of the light guide and emits laser light toward the side surface of the light guide.

6. When the detection unit detects a change in the aperture pattern with respect to a light point formed by the laser light from the light source unit when the retainer is vibrated, The detection unit is Imaging unit, It includes a mirror that reflects the image including the aperture pattern and the light points toward the imaging unit, The mirror is provided to reflect the images of the aperture pattern and the light points that do not directly enter the field of view of the imaging unit and guide them to the imaging unit. The vibration measuring device according to claim 1.

7. When the detection unit detects how light appears when the retainer is vibrated, The aperture pattern comprises an opening provided on the path of the laser light from the light source to the detection unit, and a shielding portion provided to transmit only a portion of the laser light. The vibration measuring device according to claim 1.

8. A system comprising an incubator that holds multiple fertilized eggs and applies vibration to the fertilized eggs, and a vibration measuring device used in the incubator, The aforementioned incubator is Multiple retainers for holding the fertilized egg, The system includes a vibration generating device that applies vibration to the plurality of holders, The vibration measuring device, A light source unit that irradiates laser light onto the aperture pattern formed in the holder, A detection unit that detects the change in the aperture pattern with respect to the light point formed by the laser light from the light source when the holder is vibrated, or the appearance of the laser light passing through the aperture pattern when the holder is vibrated, Equipped with, system.

Images