Irregular solid density measuring device based on liquid level height

Abstract

The utility model relates to the technical field of density measurement of objects, and particularly provides a density measurement device for irregular solids based on liquid level height, which comprises a first accommodating part, a second accommodating part, a liquid level detection part and a control part, the second containing part can be arranged in the liquid contained in the first containing part in a removable mode, and under the condition that the second containing part needs to participate in measurement, the second containing part is provided with a containing space capable of containing an object to be measured; the floater can be arranged in the liquid contained in the first containing part in a floating mode; the distance detection part comprises an actual measurement end and a transmitting end matched with the reading side; the actual measurement end is provided with a restraining structure capable of being matched with the floater. With this configuration, it is possible to determine the density of an object to be measured having an irregular shape on the basis of the change in the liquid level, and to improve the operability of measurement.

Description

Technical Field

[0001] This invention belongs to the field of density and volume measurement technology, and specifically relates to a density measuring device for irregular solids based on liquid level. Background Technology

[0002] In real life and production, the objects we encounter inevitably have irregular shapes. More precisely, compared to ideal, regular shapes, the objects we deal with in real life and production are far more irregular in shape. For example, the processing technology often results in a certain degree of error between the finished product and the ideal design shape, or irregularity due to factors such as avoidance. Furthermore, in addition to the functionality of objects, people often have visual needs, which also contributes to the trend of irregularity in the outlines of objects.

[0003] Volume and density are both fundamental properties of an object. For some items (such as commodities), the outer packaging during the sales stage usually includes information such as weight and maximum dimensions (e.g., length, width, and height roughly corresponding to the dimensions of the outer packaging). However, such information often only addresses aspects like transportation and handling experience and does not accurately represent the item's volume and density properties. Theoretically, for a given item, these two properties should be known when a user needs to quantify them.

[0004] During their studies, the inventor encountered problems involving the buoyancy and sinking method for measuring the density of solids. Inspired by this approach, the inventor believed that this principle could be used to develop a reasonable measurement scheme for the volume and density of irregularly shaped objects. It should be noted that the irregularly shaped objects mentioned in this invention should be understood as irregularly shaped, non-absorbent solids. For example, during their research of relevant literature and materials, the inventor learned that jade, as a typical non-absorbent solid, has density as an important indicator of its quality. Different types of jade typically have different densities, and the shape and volume of jade exhibit a certain degree of randomness.

[0005] After reviewing relevant materials, the inventor found that the materials generally lacked complexity in structure and / or principle, within the scope of their knowledge and understanding. Accordingly, the inventor aims to propose a technical solution based on the principle of the buoyancy-sinking method for measuring solid density, as mentioned above, to achieve the measurement of irregular, fixed volumes and densities. Furthermore, during measurement, assuming the measured values ​​are small or the differences between values ​​are small, the actual measured values ​​are often difficult to obtain accurately; even small errors can significantly affect the measurement results.

[0006] Application for utility model content

[0007] In order to at least partially solve the above-mentioned technical problems and / or solve at least some of the above-mentioned technical problems, this utility model patent proposes a density measuring device for irregular solids based on liquid level height.

[0008] In a first aspect, the present invention provides a density measuring device for irregular solids based on liquid level, the device comprising: (1) a first accommodating part having a holding chamber capable of holding liquid; (2) a second accommodating part removably disposed within the liquid contained in the first accommodating part, and having a holding space capable of holding the object to be measured when the measurement requires the participation of the second accommodating part; (3) a float capable of floating within the liquid contained in the first accommodating part; and (4) a distance detection part comprising a measuring end and a transmitting end adapted to a reading side, the distance detection part being capable of amplifying the value measured by the measuring end on the reading side by means of the transmitting end; wherein the measuring end has a constraint structure capable of cooperating with the float, and in the assembled state, the constraint structure is located above the float.

[0009] This configuration allows for the determination of the density and volume of irregularly shaped objects based on changes in the liquid level, through the collaboration of a set of containment components, a float, and a distance detection unit. When the measured value is small, increasing the distance facilitates operation.

[0010] It is understood that those skilled in the art can determine the structural form of the first / second receiving section and the corresponding structural form of the holding chamber / holding space according to actual needs.

[0011] Furthermore, those skilled in the art can determine the principle and specific structural form of the distance detection unit to achieve numerical amplification based on actual needs.

[0012] In one possible implementation of the density measuring device for irregular solids based on liquid level, the second receiving portion has a reserved space in which the float is freely accommodated.

[0013] This configuration provides the relative positional relationship between the float and the second receiving part, such as the reserved space being located at one side edge or the middle of the second receiving part.

[0014] It should be noted that "free accommodation" here should be understood as follows: on the one hand, the float is spatially located within the reserved space formed by the second accommodation section; on the other hand, the float is allowed to move freely (e.g., float slightly) within the liquid surface area corresponding to the reserved space without colliding with the second accommodation section. When both the float and the second accommodation section are in a stable state and there is no contact between them, the density of the irregular solid can be determined based on the detection results from the distance detection section.

[0015] In one possible implementation of the density measuring device for irregular solids based on liquid level height, the second receiving portion includes a substrate, the holding space is an annular groove formed on the substrate, and the reserved space is the area near the center of the annular groove.

[0016] This configuration provides possible structural forms for the second container. For example, the object to be tested can be immersed in the liquid of the first container through a region near the center of the annular groove, or the object to be tested can be evenly placed within the annular groove.

[0017] In one possible implementation of the density measuring device for irregular solids based on liquid level height described above, the float is a spherical structure.

[0018] This configuration presents one possible structural form for the float. It is understood that the density of the float should be less than the density of the liquid contained in the first container. Furthermore, to ensure the reliability of the measurement, the float should not absorb water; under this premise, any suitable material can be chosen for the float.

[0019] In one possible implementation of the above-mentioned density measuring device for irregular solids based on liquid level, when the density of the object to be measured is greater than the density of the liquid contained in the first container, the density of the object to be measured is measured by placing the object to be measured in the holding space of the second container.

[0020] With this configuration, it is possible to measure the density of a test object with a density greater than that of a liquid by means of a second containment.

[0021] In one possible implementation of the density measuring device for irregular solids based on liquid level, when the density of the object to be measured is less than or equal to the density of the liquid contained in the first container, the density of the object to be measured is measured by removing the second container and completely immersing the object to be measured in the liquid of the first container under the intervention of external force.

[0022] With this configuration, it is possible to measure the density of a test object with a density less than or equal to that of a liquid without the second containment.

[0023] In one possible implementation of the density measuring device for irregular solids based on liquid level, the object to be measured is completely submerged in the liquid surface of the first container by means of a needle-like structure.

[0024] This configuration ensures the feasibility of measurement.

[0025] In one possible implementation of the density measuring device for irregular solids based on liquid level height described above, the distance detection unit includes an optical lever.

[0026] This configuration provides a possible way to achieve numerical amplification.

[0027] It is understandable that, since the principle of optical levers is known, optical levers of any structural form can be used as the core component of the distance detection unit of this utility model.

[0028] In one possible implementation of the density measuring device for irregular solids based on liquid level height described above, the constraint structure is a ring structure, and the portion of the float near the top is housed within the ring structure.

[0029] This configuration demonstrates the specific working method between the optical lever and the float.

[0030] In one possible implementation of the density measuring device for irregular solids based on liquid level height described above, the device includes a base, and the first receiving portion is a container disposed on the base; and / or the device is equipped with a temperature detection component capable of detecting the temperature of the liquid contained in the first receiving portion.

[0031] This configuration allows for a more accurate determination of liquid density based on its temperature. For example, the introduction of an optical lever enables a clearer determination of displacement by magnifying the displacement space. The original displacement can be calculated by reading the magnified displacement. Furthermore, by correcting for the liquid's density, the accuracy of density measurement can be ensured.

[0032] The density measuring device for irregular solids based on liquid level height according to this invention, when the density of the object to be measured is greater than the density of the liquid contained in the first container, includes the following steps: acquiring a first reading on the reading side without placing the object to be measured; acquiring a second reading on the reading side when the object to be measured is placed in the holding space of the second container; acquiring a third reading on the reading side when the object to be measured is directly placed into the liquid contained in the first container; and determining the density of the object to be measured based on the first reading, the second reading, and the third reading.

[0033] The density measuring device for irregular solids based on liquid level height according to this invention includes the following steps when the density of the object to be measured is less than or equal to the density of the liquid contained in the first container: acquiring a first reading on the reading side without placing the object to be measured; floating the object to be measured on the surface of the liquid contained in the first container and acquiring a second reading on the reading side in this case; and, with the intervention of an external force (as mentioned above, by applying an external force to a needle-like structure with negligible volume, etc.), completely immersing the object to be measured in the liquid contained in the first container and acquiring a third reading on the reading side in this case. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This diagram illustrates the structure of a density measuring device for irregular solids based on liquid level height according to an embodiment of the present invention.

[0036] Figure 2 This diagram shows a cross-sectional view of a density measuring device for irregular solids based on liquid level height, according to an embodiment of the present invention.

[0037] Figure 3 An exploded schematic diagram of a density measuring device for irregular solids based on liquid level height according to an embodiment of the present invention is shown.

[0038] Figure 4 This diagram illustrates the measurement process of the density measuring device for irregular solids based on liquid level height according to the first embodiment of this utility model.

[0039] Figure 5This diagram illustrates the measurement principle of the density measuring device for irregular solids based on liquid level height according to the first embodiment of this utility model.

[0040] Figure 6 This diagram illustrates the measurement process of a density measuring device for irregular solids based on liquid level height, according to a second embodiment of the present invention.

[0041] In the attached image:

[0042] 100. A density measuring device for irregular solids based on liquid level height;

[0043] 1. Liquid container (first receiving section);

[0044] 2. Floating enclosure (second housing);

[0045] 21. Annular groove; 22. Reserved space;

[0046] 3. Optical lever (distance detection unit);

[0047] 31. Moving parts; 32. Supporting structure; 33. Light emitting components; 34. Constraint structure;

[0048] 4. Float;

[0049] 5. Base;

[0050] 51. Adjusting screw; 52. Extended end. Detailed Implementation

[0051] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0052] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0053] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or couplings. The term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0054] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0055] Furthermore, to better illustrate this utility model, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this utility model can be implemented even without certain specific details. In some examples, principles such as those of optical levers well-known to those skilled in the art are not described in detail, in order to highlight the main points of this utility model.

[0056] Main reference Figures 1 to 3 In one possible implementation, the density measuring device 100 for irregular solids based on liquid level height of this invention mainly includes a liquid container 1, a floating cover 2, an optical lever 3, and a float 4. The liquid container contains liquid, such as pure water in this example. The floating cover 2 is capable of floating on the liquid inside the liquid container, meaning that part of the floating container is below the liquid surface and part is above the liquid surface. The detection end of the optical lever 3 is located above the floating container.

[0057] In one possible implementation, the optical lever mainly includes a movable part (the lever's rod) 31. This movable part is mounted on the liquid container via a support structure such as a support frame 32. The support structure can be fixed to the upper edge of the liquid container by means of adhesive bonding or snap-fitting. The movable part is pivotally mounted on the support structure. The position of the movable part corresponding to the support structure can be understood as the fulcrum of the optical lever.

[0058] In one possible implementation, the detection end of the optical lever ( Figure 1 A constraint structure 34 is provided on the left end of the movable part in a fixed connection or integrally formed manner. In this example, the constraint structure is roughly a ring structure. The part of the float 4 with the spherical structure described below can be stably locked in the constraint structure near the top, so that the constraint structure and the movable part can move synchronously with the float. The emitting end of the light lever ( Figure 1 A light emitting component 33, such as a laser pointer, is installed on the right end of the active part. By emitting light, such as a laser, onto the receiving surface (which may be called the reading side) at the far end through the light emitting component, a light spot can be formed on the receiving surface. When the float position changes, the position of the light spot will also change accordingly. Moreover, the change in the position of the light spot is more obvious than the small change in the float position (the small change in the float position is amplified by means of the light lever). Therefore, it is possible to determine the small change in the float position by direct reading. Specifically, the amplified small change in the float position can be directly read on the reading side adapted to the emitting end.

[0059] In one possible implementation, the floating cover 2 is generally annular (e.g., a circular ring structure), and the float 4 is generally spherical. A reserved space 22 is formed in the middle of the annular structure, allowing the float 4 to be freely accommodated within this space. Specifically, the inner diameter of the annular structure is larger than the diameter of the float. The float material should meet the conditions of having a density lower than pure water and not absorbing water, ensuring that the density and volume of the object to be measured can be accurately determined through distance measurement. The object to be measured can also be placed into the liquid contained in the liquid container 1 through this reserved space.

[0060] In one possible implementation, the density measuring device 100 for irregular solids based on liquid level height further includes a base 5 with a mounting position on top, within which the bottom of the liquid container 1 is disposed. In this example, the base is generally a cylindrical structure (with a bottom), and the mounting position is generally a cylindrical chamber formed by the cylindrical structure. Furthermore, an adjustment assembly capable of adjusting the level / height of the base may be provided on the base. In this example, the adjustment assembly includes multiple adjusting screws 51, primarily used to ensure the device is level. An extension end 52 extending outward circumferentially along the wall of the cylindrical structure is provided, which may be used to place a level or as a handheld end for flexible movement of the device.

[0061] In one possible implementation, a temperature sensor (not shown in the figure) is installed inside the liquid container. Referring to Table 1 below, since the density of water varies under different temperature conditions, the density of water under the current temperature conditions can be more accurately determined by looking up the table based on the detection results of the temperature sensor.

[0062] Table 1. Correspondence between water density and temperature

[0063]

[0064] As can be seen, in the preferred embodiment of this invention, the density of an irregularly shaped object can be determined using a set of receiving parts, a float, and a distance detection part. The structure is simple and easy to operate. The distance detection part amplifies the measured value at the detection end, facilitating operation and potentially ensuring measurement accuracy. Furthermore, by configuring a temperature detection component, the measurement accuracy of the density and volume of the object can be further improved while accurately determining the liquid density.

[0065] The density measurement method for irregular solids based on liquid level will be explained below using the density measurement device for irregular solids based on liquid level as described above.

[0066] Example 1

[0067] Main reference Figure 4 and Figure 5 In one possible implementation, when the density of the object to be measured (an irregularly shaped solid) is greater than the density of the liquid contained in the liquid container, the method for measuring the density of an irregularly shaped solid based on the device of this invention mainly includes the following steps:

[0068] S410. Without placing the object to be measured, obtain the first reading on the reading side.

[0069] S420. When the object to be measured is placed in the holding space of the floating shroud, a second reading is obtained on the reading side.

[0070] S430. When the object to be measured is placed directly into the liquid contained in the liquid container, a third reading is obtained on the reading side.

[0071] S440. Determine the density of the object to be measured based on the first reading, the second reading, and the third reading.

[0072] In this device, the optical lever amplifies the subtle effects produced at the detection end and presents them through the reading side. Specifically, under different states (including three states in this example), a small change in the float's position causes the optical lever to rotate slightly in the numerical plane. Through the lever action and the rectilinear propagation of light, the light-emitting component at the emitting end of the optical lever projects the positions before and after the change onto a distant receiving surface (e.g., in this example, the device is set in a room, and the distant receiving surface is a wall of the room). On the distant receiving surface, the float's position before and after the change is reflected as a significant change in the incident point of the direct light emitted by the optical lever (the change in float's position is amplified and converted into a change in the incident point's position). During testing, a scale can be placed on the distant receiving surface. By reading the positions of the incident points before and after the change from the scale, the slight movement of the float's position can be calculated from the displacement of the incident point.

[0073] Understandably, the farther the receiving surface is from the transmitting end of the optical lever, the greater the magnification, and the higher the test accuracy is expected to be. Furthermore, by adjusting the float volume and the diameter of the liquid container, the float's minute displacement can be increased, which can also improve test accuracy to some extent.

[0074] Specifically, during the test, three readings are obtained on the scale on the receiving surface at the far end, corresponding to three states. For example, when no object is placed (state 1), the position reading of the light incident point is P1 (first reading); when the object is placed in the holding space of the floating shell (state 2), the position reading of the light incident point is P2 (second reading); and when the object is directly placed into the liquid in the liquid container (state 3), the position reading of the light incident point is P3 (second reading).

[0075] During testing, the float is stably constrained (e.g., locked) within the constraint structure, and the optical lever is fixedly mounted on the constraint structure. Therefore, the float, the detection end of the optical lever, and the constraint structure can be understood as a whole, moving synchronously with the up-and-down movement of the float as it switches between the three states. The ratio of the height difference between the floats corresponding to states 1 and 2 to the height difference between the floats corresponding to states 1 and 3 is denoted as ratio 1. The ratio of the height difference between the floats corresponding to states 1 and 2 on the receiving surface at the far end associated with the transmitting end of the optical lever to the height difference between the floats corresponding to states 1 and 3 on the far end associated with the transmitting end of the optical lever is denoted as ratio 2. If ratio 1 and ratio 2 are approximately the same (see below for further details...), then... Figure 5 (Explanation).

[0076] When no object is placed in the test chamber, the float height is h1; when the object is placed in the holding space within the floating shell, the float height is h2; when the object is removed from the holding space of the floating shell and placed into liquid in a liquid container, the float height is h3; the density of the object can then be calculated using the following formula:

[0077]

[0078] Since the changes in the float's position in the three states are manifested as tiny height differences, this invention introduces an optical lever to amplify these tiny height differences and describe them using three readings on the receiving surface at the far end. Specifically, the direct light emitted from the emitting end of the optical lever is incident on the scale of the receiving surface at the far end. By reading the position of the light spot on the scale, the distance the light spot moves in different states can be determined. By combining the distance the light spot moves with a predetermined geometric relationship, the tiny changes in the float's position can be characterized by three readings.

[0079] Main reference Figure 5 Taking states 1 and 2 as examples, the positions of the detection end of the optical lever in states 1 and 2 are Q1 and Q2, respectively. That is, Q1 is the position of the detection end of the optical lever when the float is stationary at position 1 corresponding to state 1 (which can be denoted as position 1), and Q2 is the position of the detection end of the optical lever when the float is stationary at position 2 corresponding to state 2 (which can be denoted as position 2). Correspondingly, P1 is the position 1 of the light spot on the receiving surface scale when the float is stationary at position 1, and P2 is the position 2 of the light spot on the receiving surface scale when the float is stationary at position 2.

[0080] For ease of description, Q2' is defined as the foot of the perpendicular from the detection end of the optical lever to the line Q2P2 when corresponding to position 1; r is the distance between the detection end of the optical lever fixed to the constraint structure and the fulcrum of the optical lever (corresponding to the point on the support structure); d is the horizontal distance between the fulcrum of the optical lever and the receiving surface (scale) at the far end; and α is the (tiny) change in the included angle of the optical lever in the two states. Figure 5 It can be seen from this:

[0081]

[0082] In this example, since the change in the float's height is a small change, α is much less than 5°. Therefore, in this example, tanα ≈ sinα is assumed. Thus, according to the formulas (2) and (3) above, we can conclude that:

[0083]

[0084] Based on the above formulas (1) and (4), we can conclude that:

[0085]

[0086] Obviously, the relationship between tanα and sinα can also be transformed by calculating tanα≈sinα in this example, so as to more accurately determine the position change of the float through three readings.

[0087] In this embodiment, the liquid is preferably pure water. The density of the object being measured can be higher than or no higher than that of pure water. The density of the float should be lower than that of the liquid and should be made of a non-absorbent material. The density of water ρ 液体 This can be found in Table 1 above.

[0088] Example 2

[0089] Main reference Figure 6 In one specific embodiment, when the density of the object to be measured is less than or equal to the density of the liquid contained in the liquid container, the method for measuring the density of irregularly shaped solids based on the device of this invention mainly includes the following steps:

[0090] S610. Without placing the object to be measured, acquire the first reading on the reading side.

[0091] S620, make the object to be measured float directly on the surface of the liquid contained in the liquid container, and in this case, obtain a second reading on the reading side.

[0092] S630. In the case of external force intervention, the object to be tested is completely immersed in the liquid contained in the liquid container, and a third reading is obtained on the reading side. In this example, the object to be tested can be pressed into the liquid container using a fine needle-like structure that produces almost no volume increase. On the one hand, the introduction of the fine needle-like structure produces almost no change in the liquid level. Furthermore, the tip of the fine needle-like structure can generate greater pressure, making it easier to press the object to be tested into the liquid.

[0093] S640. Determine the density of the object to be measured based on the first reading, the second reading, and the third reading.

[0094] As can be seen, in this embodiment, since the density of the object to be tested is less than that of pure water, the object to be tested can float naturally on the surface of the liquid. Therefore, unlike the previous embodiment, in this embodiment, the density measurement of the object to be tested can be completed without the participation of a floating cover (i.e., the floating cover is removed from the device).

[0095] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A density measuring device for irregular solids based on liquid level height, characterized in that, The device includes: (1) A first receiving part having a holding chamber capable of holding liquid; (2) A second receiving portion, which can be removably disposed within the liquid contained in the first receiving portion, and When the measurement requires the participation of the second receiving part, the second receiving part has a holding space capable of holding the object to be measured; (3) A float, which is capable of floating in a liquid contained in the first container; and (4) A distance detection unit, which includes a measuring end and a transmitting end adapted to the reading side, wherein the distance detection unit can amplify the value measured by the measuring end on the reading side by means of the transmitting end; The measured end has a constraint structure that can cooperate with the float, and In the assembled state, the constraint structure is located above the float.

2. The density measuring device for irregular solids based on liquid level height according to claim 1, characterized in that, The second receiving portion has a reserved space in which the float is freely accommodated.

3. The density measuring device for irregular solids based on liquid level height according to claim 2, characterized in that, The second receiving portion includes a base, the holding space is an annular groove formed on the base, and the reserved space is the area near the center of the annular groove.

4. The density measuring device for irregular solids based on liquid level height according to claim 2, characterized in that, The float has a spherical structure.

5. The density measuring device for irregular solids based on liquid level height according to claim 1, characterized in that, When the density of the object to be tested is greater than the density of the liquid contained in the first container, the density of the object to be tested is measured by placing the object to be tested in the holding space of the second container.

6. The density measuring device for irregular solids based on liquid level height according to claim 1, characterized in that, When the density of the object to be tested is less than or equal to the density of the liquid contained in the first container, the density of the object to be tested is measured by removing the second container and completely immersing the object to be tested in the liquid of the first container under the intervention of external force.

7. The density measuring device for irregular solids based on liquid level height according to claim 6, characterized in that, The object to be tested is completely submerged in the liquid surface of the first container by means of the needle-like structure.

8. The density measuring device for irregular solids based on liquid level height according to claim 4, characterized in that, The distance detection unit includes an optical lever.

9. The density measuring device for irregular solids based on liquid level height according to claim 8, characterized in that, The constraint structure is a ring structure, and the portion of the float near the top is housed within the ring structure.

10. The density measuring device for irregular solids based on liquid level height according to claim 1, characterized in that, The device includes a base, and the first receiving portion is a container disposed on the base; and / or The device is equipped with a temperature detection component, which is capable of detecting the temperature of the liquid contained in the first container.

Images