CN217006846U - Density measuring device - Google Patents
Density measuring device Download PDFInfo
- Publication number
- CN217006846U CN217006846U CN202220310213.4U CN202220310213U CN217006846U CN 217006846 U CN217006846 U CN 217006846U CN 202220310213 U CN202220310213 U CN 202220310213U CN 217006846 U CN217006846 U CN 217006846U
- Authority
- CN
- China
- Prior art keywords
- basket
- liquid containing
- adjusting
- frame
- containing groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
The embodiment of the utility model discloses a density measuring device, which comprises: the device comprises a supporting frame, a guide post, an adjusting mechanism, a hanging scale, a counterweight basket and a liquid containing groove; the guide column is fixed in the support frame, the top end of the guide column is fixed with the top plate of the support frame, and the bottom end of the guide column is fixed with the bottom plate of the support frame; an adjusting mechanism, a hanging scale, a balance weight basket and a liquid containing groove are sequentially arranged in the supporting frame from top to bottom in the vertical direction; the adjusting mechanism is movably connected with the guide post, and the bottom of the adjusting mechanism is sequentially connected with a hanging scale and a balance weight basket; the liquid containing groove is arranged on the bottom plate of the supporting frame, and the top opening of the liquid containing groove can allow the counterweight basket to pass through. The flexibility of measurement is improved; the buoyancy material is not required to be cured, so that the detection cost is saved, the strength of the shell material is not influenced, and the quality of a finished product is improved; the density measurement of the density of water larger than or smaller than or equal to that of water can be realized, and the universality is improved.
Description
Technical Field
The utility model relates to the field of data measurement, in particular to a density measuring device.
Background
The interior of a certain aluminum alloy thin-wall revolving body structural member is required to provide positive buoyancy when used in deep water, and low-density and high-strength materials are required to be installed and coated in the interior. Due to the factors of complex internal structure, cost, special manufacturability of low-density and high-strength material molding and the like, uncured low-density material is coated inside the product part, and then pre-curing or heating curing and the like are carried out. The low-density material has the advantages that the density change caused by volume expansion in the curing and forming process, the non-adhesion of the boundary after curing caused by the flowing of the material in the curing process and the like, the density in the curing process and the density after curing need to be measured continuously in the production process, and the guidance effect is formed on the later-stage production.
The prior art derives the density of the coated buoyant material by calculating the weight of the coated fore/aft hull and the mass of the drainage. However, this method causes the following problems: 1) the coated shell has large weight and volume, and a large water tank is needed for measurement, so that flexible operation is difficult to realize; 2) a large oven is needed in the curing process, and the cost of test and detection is high; 3) at present, the coating is directly coated on a product for heating, heat preservation and solidification, so that the strength of a shell material is reduced; 4) most devices use a drainage method, and the measured material density is greater than the density of water.
In view of the above problems in the prior art, there is no effective solution.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a density measuring device, which is characterized in that a liftable adjusting device is arranged, so that a hanging scale and a balance weight basket simultaneously fall into water in a liquid containing tank, and the density of a buoyancy material is obtained through buoyancy calculation, so that the problems that the overall measurement of a shell is difficult after a floating body material is coated, the detection cost is high, the performance of the floating body material is influenced, and the density of the material is higher than that of water and is difficult to measure in the prior art are solved.
In order to achieve the above object, an embodiment of the present invention provides a density measuring apparatus, including: the device comprises a supporting frame, a guide post, an adjusting mechanism, a hanging scale, a counterweight basket and a liquid containing groove; the guide column is fixed inside the support frame, the top end of the guide column is fixed with the top plate of the support frame, and the bottom end of the guide column is fixed with the bottom plate of the support frame; an adjusting mechanism, a hanging scale, a balance weight basket and a liquid containing groove are sequentially arranged in the vertical direction in the supporting frame from top to bottom; the adjusting mechanism is movably connected with the guide post, and the bottom of the adjusting mechanism is sequentially connected with a hanging scale and a balance weight basket; the liquid containing groove is arranged on the bottom plate of the supporting frame, and the top opening of the liquid containing groove can allow the counterweight basket to pass through.
Further optionally, the adjustment mechanism comprises: the adjusting frame, the baffle, the compression bar and the elastic piece; the top of the adjusting frame is provided with a first opening, the bottom of the adjusting frame is provided with a second opening, the first opening corresponds to the second opening in position and can allow the guide column to pass through; the pressure lever penetrates from the outer side of the top plate of the adjusting frame and is movably connected with the adjusting frame; the baffle plate is obliquely arranged in the adjusting frame, one end of the baffle plate is fixed on the inner side wall of the adjusting frame, and the other end of the baffle plate and the end of the compression bar penetrating into the adjusting frame are fixed; the separation blade is provided with a through hole for clamping the guide post; the elastic piece is arranged in the adjusting frame and sleeved on the guide post, one end of the elastic piece is abutted against the bottom surface of the separation blade, and the other end of the elastic piece is abutted against the bottom plate of the adjusting frame.
Further optionally, the elastic member is a spring.
Further optionally, the counterweight basket is connected with the hanging scale through a locking rod.
Further optionally, a counterweight is arranged inside the counterweight basket; the surface of the counterweight basket is provided with a movable door plate.
Further optionally, a center line of the adjusting mechanism in the vertical direction, a center line of the hanging scale in the vertical direction, a center line of the counterweight basket in the vertical direction, and a center line of the liquid containing groove in the vertical direction are collinear.
On the other hand, the utility model also provides a density measurement method, which adopts the density measurement device to carry out measurement and comprises the following steps: the number of the hanging scale is reset to zero; connecting the balance weight basket with the hanging scale, and recording a first display number m displayed by the hanging scale; putting an object to be measured into the counterweight basket, and recording a second index m displayed by the hanging scale1(ii) a Taking out the object to be measured, adjusting an adjusting mechanism to completely immerse the counterweight basket into a liquid containing tank filled with water, and recording a third index m of the hanging scale2(ii) a Adjusting the adjusting mechanism to enable the balance weight basket to completely float out of the water surface, placing the object to be measured in the balance weight basket, adjusting the adjusting mechanism to enable the balance weight basket to completely dip into a liquid containing groove filled with water, and recording a fourth reading m of the hanging scale3(ii) a According to the first index m and the second index m1The third index m2And a fourth index m3And calculating the density of the object to be measured.
Further optionally, the first and second readings m and m are used as reference1The third index m2And a fourth index m3Calculating the density of the object to be measured by the following calculation formula:
the technical scheme has the following beneficial effects: the measured buoyancy material is added with the balance weight, mass measurement in air and mass measurement in water are respectively carried out, the density of the buoyancy material is finally obtained, the scheme that the buoyancy material is coated on the shell and then measured is abandoned, and the measurement flexibility is improved; the buoyancy material is not required to be cured, so that the detection cost is saved, the strength of the shell material is not influenced, and the quality of a finished product is improved; the density measurement of the density of water larger than or smaller than or equal to that of water can be realized, and the universality is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a density measurement device provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a partially enlarged structure of an adjustment structure provided in an embodiment of the present invention;
fig. 3 is a flowchart of a density measurement method according to an embodiment of the present invention.
Reference numerals are as follows: 1-supporting frame 101-top plate 102-bottom plate 2-guide column 3-adjusting mechanism 301-adjusting frame 302-baffle plate 303-pressure rod 304-elastic piece 305-connecting piece 4-hanging scale 5-counterweight basket 6-liquid containing groove 7-locking rod
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to solve the problems that the overall measurement of the shell is difficult, the detection cost is high, the performance of the floating body material is influenced, and the material density is higher than that of water and is difficult to measure after the floating body material is coated, the utility model provides a density measuring device, and fig. 1 is a schematic structural diagram of the density measuring device provided by the embodiment of the utility model, and the device comprises: the device comprises a supporting frame 1, a guide post 2, an adjusting mechanism 3, a hanging scale 4, a balance weight basket 5 and a liquid containing groove 6; the guide post 2 is fixed in the support frame 1, one end of the guide post is fixed with a top plate 101 of the support frame 1, and the other end of the guide post is fixed with a bottom plate 102 of the support frame 1; an adjusting mechanism 3, a hanging scale 4, a balance weight basket 5 and a liquid containing groove 6 are sequentially arranged in the supporting frame 1 from top to bottom in the vertical direction; the adjusting mechanism 3 is movably connected with the guide post 2, and the bottom of the adjusting mechanism is sequentially connected with a hanging scale 4 and a balance weight basket 5; the liquid containing groove 6 is arranged on the bottom plate of the support frame 1, and the top opening of the liquid containing groove can contain the counterweight basket 5 to pass through.
As shown in fig. 1, the cross section of the measuring device is square, an integral supporting frame 1 is arranged outside the measuring device, the supporting frame 1 comprises a top plate 101 and a bottom plate 102, a guide post 2 is fixed between the top plate 101 and the bottom plate 102, and two ends of the guide post respectively penetrate through the top plate 101 and the bottom plate 102 and are fixed through fastening screws.
The liquid containing groove 6 is placed or fixed on the bottom plate 102 and used for containing the solution, and the liquid containing groove 6 is positioned on one side of the guide column 2 and is opened at the top and used for pouring or taking out the solution. In this embodiment, water is poured into the liquid-containing tank 6 for density measurement. As an alternative embodiment, the liquid containing tank 6 is a beaker.
Still swing joint has adjusting device on the guide post 2, and control adjustment mechanism 3 can make adjustment mechanism 3 go up and down in order to satisfy the measurement requirement.
The bottom of the adjusting device is connected with a hanging scale 4, and the bottom of the hanging scale 4 is connected with a balance weight basket 5. When the adjusting device is lifted, the hanging scale 4 and the balance weight basket 5 are lifted simultaneously, so that the height of the balance weight basket 5 in the air or in the liquid containing groove 6 can be adjusted only by controlling the adjusting device. In the lifting process, the crane scale 4 displays the weight of the connected counterweight basket 5 at any time, and the final density of the buoyancy material is obtained by acquiring and calculating readings of the crane scale 4 in different states. Besides, the hanging scale 4 and the weighting basket 5 are both positioned on the side of the guide post 2 where the liquid containing groove 6 is placed, and are suspended above the liquid containing groove 6. During the lifting process, the counterweight basket 5 can enter the liquid containing groove 6 or leave the liquid containing groove 6 through the opening at the top of the liquid containing groove 6.
As an alternative implementation manner, fig. 2 is a schematic partial enlarged structural diagram of an adjusting structure provided in an embodiment of the present invention, and as shown in fig. 2, the adjusting mechanism 3 includes: an adjusting frame 301, a baffle plate 302, a pressure lever 303 and an elastic piece 304; the top of the adjusting frame 301 is provided with a first opening, the bottom is provided with a second opening, the first opening corresponds to the second opening in position and can allow the guide post 2 to pass through; the pressure lever 303 penetrates from the outer side of the top plate 101 of the adjusting frame 301 and is movably connected with the adjusting frame 301; the baffle plate 302 is obliquely arranged inside the adjusting frame 301, one end of the baffle plate is fixed on the inner side wall of the adjusting frame 301, and the other end of the baffle plate and the pressing rod 303 penetrate through the end part of the adjusting frame 301 for fixing; the separation blade 302 is provided with a through hole for installing and clamping the guide post 2; the elastic member 304 is disposed inside the adjusting frame 301, and is sleeved on the guiding post 2, one end of which abuts against the bottom surface of the blocking piece 302, and the other end of which abuts against the bottom plate 102 of the adjusting frame 301.
As shown in fig. 2, the section of the adjusting mechanism 3 is square, the adjusting frame 301 is arranged outside the adjusting mechanism, and the top and the bottom of the adjusting frame 301 are respectively provided with corresponding openings. The guide post 2 passes through the top opening and the bottom opening of the adjusting frame 301, and the opening size is slightly larger than the diameter of the guide post 2, so that the adjusting frame 301 can fall down along the guide post 2 when the friction force provided by the blocking piece 302 to the guide post 2 is reduced.
The compression bar 303 penetrates through the top of the adjusting frame 301 and is movably connected with the top of the adjusting frame 301, and the length of the compression bar 303 inside the adjusting frame 301 can be increased through pressing. The strut 303 is connected to the flap 302 inside the adjustment through the end of the adjustment frame 301.
The blocking piece 302 is obliquely arranged inside the adjusting frame 301, one end of the blocking piece is fixed on one side wall of the adjusting frame 301, and the other end of the blocking piece is obliquely upwards and obliquely connected with the end part of the pressing rod 303 entering the adjusting frame 301. The surface of the blocking piece 302 is provided with a through hole through which the guide post 2 can pass. In a natural state, namely in a state that the pressure lever 303 is not pressed, as the blocking piece 302 is obliquely arranged, the through hole of the blocking piece 302 has larger friction force with the guide post 2, so that the adjusting mechanism 3 is integrally fixed on the guide post 2 and cannot fall down, and the hanging scale 4 and the counterweight basket 5 are suspended in the air; when the pressing rod 303 is pressed, one end of the blocking piece 302 gradually tends to be horizontal, the friction force generated by the through hole on the guide post 2 is gradually reduced until the friction force is smaller than the integral gravity, the adjusting frame 301 begins to fall, and when the adjusting frame 301 falls to a preset position, the adjusting frame 301 can be positioned again by loosening the pressing rod 303.
The elastic member 304 is disposed between the bottom of the blocking piece 302 and the bottom of the adjusting frame 301, and provides an upward supporting force to the blocking piece 302, so that the blocking piece 302 blocks the guide rod in a natural state, and when the pressing rod 303 is released after being pressed, one end of the blocking piece 302 is forced to move upwards to restore an inclined state.
In addition, in order to meet the connection between the hanging scale 4 and the adjusting mechanism 3, the adjusting mechanism 3 fixes one end of the connecting piece 305, the other end of the connecting piece 305 is connected with the hanging scale 4, and the connecting piece 305 and the hanging scale 4 are arranged to be detachable.
As an alternative embodiment, the elastic member 304 is a spring.
As an alternative embodiment, the counterweight basket 5 is connected to the balance 4 by a locking lever 7.
As shown in fig. 1, the counterweight basket 5 is connected with the hanging scale 4 through the locking rod 7 to prevent the counterweight basket 5 from falling off, one end of the locking rod 7 is detachable from the locking rod 7 of the hanging scale 4, and the other end of the locking rod 7 is fixed to the top of the counterweight basket 5, so that the counterweight basket 5 can be conveniently assembled and disassembled.
As an alternative embodiment, a counterweight is arranged inside the counterweight basket 5; the surface of the balance weight basket 5 is provided with a movable door plate.
Because the object to be measured is mostly small-sized buoyancy material, its weight is less, consequently need add the counter weight in counter weight basket 5, supplementary measurement, and the counter weight spare is one or more. Preferably, the weight member is a metal member with a weight mark.
The surface of the counterweight basket 5 is provided with a movable door plate which is convenient to open so as to take the object to be measured and the counterweight.
As an alternative embodiment, the basket 5 may be provided with a plurality of drainage holes or drainage fences to facilitate drainage of the immersed water.
As an alternative embodiment, the vertical center line of the adjusting mechanism 3, the vertical center line of the hanging scale 4, the vertical center line of the counterweight basket 5, and the vertical center line of the liquid containing groove 6 are the same straight line.
As shown in figure 1, the central lines of the adjusting mechanism 3, the hanging scale 4, the counterweight basket 5 and the liquid containing groove 6 in the vertical direction are the same straight line, so that the measuring accuracy is improved.
The utility model further provides a density measurement method, which adopts the density measurement device to perform measurement, and fig. 3 is a flow chart of the density measurement method provided by the embodiment of the utility model, as shown in fig. 3, the method includes:
s1, zeroing the indication number of the hanging scale 4;
s2, connecting the counterweight basket 5 with the hanging scale 4, and recording a first display number m displayed by the hanging scale 4;
s3, placing the object to be measured into the counterweight basket 5, and recording the second reading m displayed by the hanging scale 41Calculating the mass of the object to be measured as (m)1-m)
S4, taking out the object to be measured, adjusting the adjusting mechanism 3 to immerse the balance weight basket 5 into the liquid containing groove 6 containing water, and recording the third reading m of the hanging scale 42；
S5, adjusting the adjusting mechanism 3 to make the balance weight basket 5 completely float out of the water surface, placing the object to be measured in the balance weight basket 5, adjusting the adjusting mechanism 3 to make the balance weight basket 5 completely dip into the liquid containing groove 6 containing water, recording the fourth reading m of the hanging scale 43；
S6, according to the first index m and the second index m1The third index m2And a fourth index m3And calculating the density of the object to be measured.
The weight of the balance weight basket 5 is a constant value m, and the unit is g; the weight of the balance weight basket 5 and the object to be measured is m1In units of g; when the balance weight basket 5 is singly immersed in the water, the scale 4 has the number m2In units of g; when the balance weight basket 5 and the object to be measured are immersed into the water together, the scale 4 has the reading number of m3In units of g.
As an alternative embodiment, the first index m and the second index m are based on1The third index m2And a fourth index m3Calculating an object to be measuredIs calculated by the following calculation formula:
the derivation of this equation is as follows:
low density buoyant material m1Has positive buoyancy in water, and the drainage measurement process requires that the measured object is completely immersed in the water, so that enough counter weight m needs to be carried out2After the electronic hanging scale is immersed in water, the electronic hanging scale can display the display number m;
(m1-m)* g +m2*g-ρwater (I)*g*VRow board＝m3*g
Namely: the difference between the upward buoyancy and the downward gravity forms the reading of the electronic scale, and at the same time,
the first embodiment,
The embodiment of the utility model can be applied to the density measurement of materials with density less than that of water and without water absorption, and is also suitable for the density measurement of metals and nonmetals with density greater than that of water and without water absorption. In this embodiment, the object to be measured is made of a buoyant material (maximum size 50mm × 50mm × 30 mm).
1) The electronic hanging scale 4 returns to zero;
2) fixing the balance weight basket 5 on the electronic hanging scale 4 through the locking rod 7, recording the number m of the electronic hanging scale 4, putting a buoyancy material block into the balance weight basket 5, recording the display number m of the electronic hanging scale 41Then taking out the buoyancy material block;
3) after the liquid containing tank 6 is filled with water, the pressure rod 303 is pressed down, the counterweight basket 5 is immersed into the water in the liquid containing tank 6, and the number m of the electronic hanging scale 4 is recorded2；
4) Pressing the pressing rod 303 to make the balance weight basket 5 float out of the water surface, putting the buoyancy material block, immersing the balance weight basket 5 below the water surface, recording the reading of the electronic hanging scale 4 as m3；
5) Taking out the buoyancy material block and the like, and finishing measurement;
6) the density of the buoyant material was calculated according to the following calculation formula.
The technical scheme has the following beneficial effects: the measured buoyancy material is added with the balance weight, mass measurement in the air and mass measurement in the water are respectively carried out, the density of the buoyancy material is finally obtained, the scheme that the buoyancy material is coated on the shell and then measured is abandoned, and the flexibility of measurement is improved; the buoyancy material is not required to be cured, so that the detection cost is saved, the strength of the shell material is not influenced, and the quality of a finished product is improved; the density measurement of the density of water larger than or smaller than or equal to that of water can be realized, and the universality is improved.
The above embodiments of the present invention are provided to further explain the objects, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are merely examples of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A density measurement device, comprising:
the device comprises a supporting frame, a guide post, an adjusting mechanism, a hanging scale, a counterweight basket and a liquid containing groove;
the guide column is fixed inside the support frame, the top end of the guide column is fixed with the top plate of the support frame, and the bottom end of the guide column is fixed with the bottom plate of the support frame;
an adjusting mechanism, a hanging scale, a balance weight basket and a liquid containing groove are sequentially arranged in the supporting frame from top to bottom in the vertical direction;
the adjusting mechanism is movably connected with the guide post, and the bottom of the adjusting mechanism is sequentially connected with a hanging scale and a balance weight basket;
the liquid containing groove is arranged on the bottom plate of the supporting frame, and the top opening of the liquid containing groove can allow the counterweight basket to pass through.
2. The density measurement device of claim 1, wherein the adjustment mechanism comprises:
the adjusting frame, the baffle, the compression bar and the elastic piece;
the top of the adjusting frame is provided with a first opening, the bottom of the adjusting frame is provided with a second opening, and the first opening corresponds to the second opening in position and can allow the guide post to pass through;
the pressure lever penetrates from the outer side of the top plate of the adjusting frame and is movably connected with the adjusting frame;
the baffle plate is obliquely arranged in the adjusting frame, one end of the baffle plate is fixed on the inner side wall of the adjusting frame, and the other end of the baffle plate and the end of the compression bar penetrating into the adjusting frame are fixed; the separation blade is provided with a through hole for clamping the guide post;
the elastic piece is arranged in the adjusting frame and sleeved on the guide post, one end of the elastic piece is abutted against the bottom surface of the separation blade, and the other end of the elastic piece is abutted against the bottom plate of the adjusting frame.
3. The density measurement device according to claim 2, wherein:
the elastic piece is a spring.
4. The density measuring apparatus according to claim 1, wherein:
the counterweight basket is connected with the hanging scale through a locking rod.
5. The density measurement device of claim 1, wherein:
a counterweight part is arranged inside the counterweight basket;
the surface of the counterweight basket is provided with a movable door plate.
6. The density measurement device of claim 1, wherein:
the center line of the adjusting mechanism in the vertical direction, the center line of the hanging scale in the vertical direction, the center line of the counterweight basket in the vertical direction and the center line of the liquid containing groove in the vertical direction are the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220310213.4U CN217006846U (en) | 2022-02-16 | 2022-02-16 | Density measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220310213.4U CN217006846U (en) | 2022-02-16 | 2022-02-16 | Density measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217006846U true CN217006846U (en) | 2022-07-19 |
Family
ID=82393423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220310213.4U Active CN217006846U (en) | 2022-02-16 | 2022-02-16 | Density measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217006846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459952A (en) * | 2022-02-16 | 2022-05-10 | 山西汾西重工有限责任公司 | Density measuring device and method |
-
2022
- 2022-02-16 CN CN202220310213.4U patent/CN217006846U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459952A (en) * | 2022-02-16 | 2022-05-10 | 山西汾西重工有限责任公司 | Density measuring device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217006846U (en) | Density measuring device | |
| CN211347813U (en) | Device for measuring rock water absorption in real time | |
| US7296466B2 (en) | Underwater weighing container and apparatus for measuring specific gravity | |
| CN114459952A (en) | Density measuring device and method | |
| CN204241333U (en) | A kind of material specific weight determine instrument | |
| CN203375922U (en) | Slope-changing type silt grain underwater angle of repose measurement instrument | |
| CN109668603B (en) | Battery cell volume measuring device and method | |
| CN209689707U (en) | It is a kind of that variable tension and image recognition technology is taken to measure the detection device of storage tank density, liquid level | |
| CN215448879U (en) | Experimental device for measuring liquid surface tension coefficient by pull-off method | |
| CN211825543U (en) | Solid density measuring device | |
| CN107238550B (en) | Constant-temperature hydrostatic balance and using method thereof | |
| CN210982119U (en) | Floating body density measuring device | |
| CN207181219U (en) | A kind of oil product air release value determines device | |
| CN209783699U (en) | Lever type buoy liquid level meter for asphalt storage tank | |
| CN108682242B (en) | Physical experiment device | |
| CN202403982U (en) | Volumetric Young's modulus measuring instrument | |
| CN112706895A (en) | Ship inclination test device | |
| CN206311457U (en) | The automatic testing equipment that a kind of Corrosion Reinforcement section is axially distributed | |
| CN212514117U (en) | Density balance for middle school students | |
| CN112255140B (en) | Intelligent detector for liquid density | |
| RU2312323C1 (en) | Balance-type zero buoyancy determining apparatus | |
| CN216925769U (en) | Sliding still water balance device | |
| CN211453241U (en) | Emulsion explosive density detection device | |
| CN113504150B (en) | Dynamic detector for specific gravity of liquid and dynamic detection method | |
| CN219676761U (en) | Primary school science buoyancy measurement experimental apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |