CN212008204U - Automatic stirring density measuring device for particle analysis experiment - Google Patents
Automatic stirring density measuring device for particle analysis experiment Download PDFInfo
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- CN212008204U CN212008204U CN202020706929.7U CN202020706929U CN212008204U CN 212008204 U CN212008204 U CN 212008204U CN 202020706929 U CN202020706929 U CN 202020706929U CN 212008204 U CN212008204 U CN 212008204U
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Abstract
The utility model provides an automatic density device that stirs of particle analysis experiment, the device includes: the workbench consists of a base and a hollow bracket, and the base is used for placing an experimental measuring cylinder; the rotatable fixing device is arranged at the preset height of the hollow support, is fixedly provided with a first conveying device and a second conveying device, and is used for switching the conveying devices positioned above the experiment measuring cylinder through rotation; the stirring device is fixed on the first conveying device and driven by a conveying belt of the first conveying device to move up and down so as to stir the particles and the solution in the experimental measuring cylinder; the density measuring device is connected to the second conveying device through a flexible rope, extends into the experiment measuring cylinder for a preset depth under the driving of a conveying belt of the second conveying device, and further measures the density of the sample; can realize automatic stirring and density measurement, stirring time, stirring frequency, stirring dynamics and stirring height can obtain accurate control, effectively overcome the various defects that can past manual stirring, effectively improved the efficiency of particle analysis experiment.
Description
Technical Field
The utility model relates to a geotechnical engineering geotechnical measurement technical field especially relates to an automatic stirring density measuring device of granule analysis experiment.
Background
The particle composition of the silty soil is used as a physical index of the soil, and particularly, the clay content of the silty soil is an important index for determining the name assignment and liquefaction judgment of a soil sample.
In the laboratory tests, two test methods, namely a densitometer method and a pipette method, are mainly used for sandy (powdery) soil with the particle size of less than 0.075 mm. Typically, the house test uses the A-densitometer method, in which an important step is the agitation of the solution. In the prior laboratory test, manual stirring is adopted, and after the stirring is finished, the stirring device is taken out, and the density measuring device is placed into a salt measuring cylinder, so that the density of the solution is measured. However, this method of operation has the following disadvantages: 1. according to the requirement of (GB/T50123-1999) Standard of geotechnical test method, the stirring time is 1 minute, but the time is difficult to accurately control during manual stirring; 2. the solution is not uniformly stirred due to the non-uniformity of the manual stirring distance and the stirring frequency; 3. when manual stirring is carried out, too much force is exerted, and the solution in the measuring cylinder is always leaked out in the stirring process, so that the experimental precision is influenced; 4. when the stirring rod moves too much during manual stirring, the measuring cylinder can be caused to shake, and the experimental reading is influenced. In order to meet the requirement of experimental specification, improve the working efficiency and the experimental precision and overcome the defect of manual stirring in the past, the automatic stirring density measuring device capable of realizing automatic stirring and measuring is required.
SUMMERY OF THE UTILITY MODEL
Problem and not enough to prior art existence, the embodiment of the utility model provides a density device is surveyed in automatic stirring of particle analysis experiment to reach the automatic technical effect who stirs and survey density.
First aspect, according to the utility model provides a pair of automatic stirring density measurement device of particle analysis experiment, include:
a hollow support;
the base is used for placing an experiment measuring cylinder;
the rotatable fixing device is arranged at a preset height of the hollow support, is fixedly provided with a first conveying device and a second conveying device which form a preset included angle in the vertical direction, and is positioned above the experiment measuring cylinder through rotation switching to form the first conveying device or the second conveying device;
the stirring device is fixed on the first conveying device through an elastic fixing device, and when the first conveying device is positioned above the experimental measuring cylinder, the first conveying device is driven by a conveying belt of the first conveying device to move up and down so as to stir a sample in the experimental measuring cylinder, wherein the sample consists of particles and solution;
the density measuring device is connected to the second conveying device through a flexible rope, and when the second conveying device is positioned above the experimental measuring cylinder, the second conveying device is driven by a conveying belt of the second conveying device to extend into the experimental measuring cylinder for a preset depth so as to measure the density of the solution;
the first conveying device is connected with the first motor, and when the first motor is started, a conveying belt of the first conveying device moves up and down; the second conveying device is connected with a second motor, and when the second motor is started, a conveying belt of the second conveying device moves up and down; the rotatable fixing device is connected with a rotating motor, and is driven to rotate by the rotating motor.
In one embodiment, further comprising:
the timer is used for acquiring the stirring time of the stirring device;
and a controller for controlling the rotatable fixing device 12 to rotate by a preset angle when the stirring time reaches a preset time.
In one embodiment, further comprising:
the position sensor is arranged on the first conveying device and used for acquiring the position of the stirring device;
the controller is further used for controlling the movement direction of the conveyor belt of the first conveying device according to the position of the stirring device.
In one embodiment of the present invention,
the controller is further configured to:
when the rotatable fixing device rotates to the position above the experimental measuring cylinder, the second conveying device is controlled to drive the density measuring device to move downwards;
the device further comprises:
the second position sensor is arranged on the second conveying device and used for acquiring the position of the density measuring device when the second conveying device is positioned above the experiment measuring cylinder;
and the controller is also used for controlling the conveyor belt of the second conveying device to stop moving downwards continuously when the second position sensor acquires that the density measuring device descends to the preset position.
In one embodiment, the apparatus further comprises:
and the switch button is arranged on the base to control the device to be switched on or switched off.
In one embodiment, the hollow bracket is a hollow structure, and a lead is arranged in the hollow structure to realize the electric connection between a switch button and the rotating motor, the first motor and the second motor;
wherein the first motor is connected in parallel with the second motor.
In one embodiment, a telescopic protruding structure is arranged on the hollow support, a plurality of clamping grooves are formed in the rotatable fixing device, and the position of the protruding structure clamped with the clamping grooves is changed, so that the position, above the experiment measuring cylinder, of the first conveying device or the second conveying device is changed.
In one embodiment, the apparatus further comprises:
and the power plug is used for connecting a power supply to the device so as to supply power to the device.
In one embodiment, the apparatus further comprises:
and the power storage module is used for providing a standby power supply for the device.
The embodiment of the utility model provides an automatic density device that stirs of particle analysis experiment can realize automatic stirring and density measurement, and stirring time, stirring frequency, stirring dynamics and stirring height can obtain accurate control, effectively overcomes the various defects that can past manual stirring, has effectively improved the efficiency of particle analysis experiment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an automatic stirring density measuring device for particle analysis experiments according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another automatic stirring density measuring device for particle analysis experiments according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the automatic stirring density measuring device for particle analysis experiments according to the embodiment of the present invention when measuring the density of a sample;
fig. 4 is a flowchart of an automatic stirring density measuring method for particle analysis experiments according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be further described with reference to the following specific embodiments and accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Example 1
The embodiment of the utility model discloses automatic density device that stirs of particle analysis experiment, it is shown with reference to figure 1, include:
the base 111 is used for placing an experiment measuring cylinder;
a hollow support 112;
the rotatable fixing device 12 is arranged at a preset height of the hollow support, is fixedly provided with a first conveying device 13 and a second conveying device 14 which form a preset included angle in the vertical direction, and is positioned above the experiment measuring cylinder through rotation switching, and the first conveying device 13 or the second conveying device 14 is positioned above the experiment measuring cylinder;
the stirring device 15 is fixed on the first conveying device 13, and when the first conveying device 13 is positioned above the experimental measuring cylinder, the first conveying device is driven by a conveying belt of the first conveying device 13 to move up and down so as to stir a sample in the experimental measuring cylinder, wherein the sample consists of particles (soil or sand) and a solution; one end of a conveyor belt of the first conveying device is fixed on the pulley above, and the other end of the conveyor belt of the first conveying device is connected with the first motor, so that the stirring device is controlled to move upwards or downwards under the driving of the first motor; one end of a conveyor belt of the second conveying device is fixed on the pulley above, and the other end of the conveyor belt is connected with the second motor, so that the stirring device moves upwards or downwards under the driving of the second motor; it is noted that the stirring device can be attached to the conveyor belt of the first conveyor by releasable fastening means (e.g. fastening means consisting of a screw, an open loop and a nut, the screw passing through the open through-hole of the loop and the nut on the releasable screw thereby changing the inner diameter of the releasable fastening means) to facilitate the clamping or removal of the stirring device.
The density measuring device 16 is connected to the second conveying device 14 through a flexible rope, and when the second conveying device 14 is located above the experimental measuring cylinder, the density measuring device is driven by a conveying belt of the second conveying device 14 to extend into the experimental measuring cylinder by a preset depth, so that the density of a sample in the experimental measuring cylinder is measured;
the first conveying device 13 is connected with a first motor 17, and when the first motor 17 is started, a conveying belt of the first conveying device 13 moves up and down; the second conveying device 14 is connected with a second motor 18, and when the second motor 18 is started, a conveying belt of the second conveying device 14 moves up and down; the rotatable fixing device 12 is connected with a rotating motor, and is driven to rotate by the rotating motor.
The embodiment of the utility model provides an in, the distance between two upper and lower pulleys of first conveyer 13 is not less than the height of experiment graduated flask, and then guarantees when the stirring, and agitating unit 15 can touch the bottom of experiment graduated flask to can take out smoothly from the experiment graduated flask after the stirring. Similarly, in order to facilitate the density measuring device 16 to be put into and taken out of the test measuring cylinder, the distance between the upper and lower pulleys of the second conveying device 14 is not lower than the height of the test measuring cylinder. In addition, the height of the stirring device and the height of the density measuring device are preferably higher than the height of the experimental measuring cylinder. The first conveying device and the second conveying device with corresponding heights can be arranged according to the experiment measuring cylinders with different heights.
In the embodiment of the present invention, the density measuring device 16 is connected to the conveyor belt of the second conveyor 14 through a flexible rope, and can move up and down under the driving of the second conveyor 14; on the other hand, the conveyer belt of density measuring device 16 and second conveyer 14 is connected through flexible rope, therefore after density measuring device 16 reached preset degree of depth, there was the space of come-up, can make density measuring device 16 reach the equilibrium under the effect of gravity and buoyancy, and then accurately measure the density of the sample in the experiment graduated flask.
In the embodiment of the present invention, after the stirring device 15 finishes stirring, the stirring device 15 is controlled to ascend above the experimental measuring cylinder under the driving of the first conveying device 13; the rotatable fixing device 12 is driven by the rotating motor to rotate by a preset angle, so that the second conveying device 14 is arranged above the experimental measuring cylinder.
The utility model discloses an embodiment, automatic stirring densimeter of particle analysis experiment still includes:
the timer is used for acquiring the stirring time of the stirring device;
and a controller for controlling the rotatable fixing device 12 to rotate by a preset angle when the stirring time reaches a preset time. The timer and controller may be located inside the hollow stent, not shown.
In an embodiment of the present invention, the present invention further comprises:
the first position sensor is arranged on the first conveying device 13 and used for acquiring the position of the stirring device 15;
the controller is further configured to control the moving direction of the conveyor belt of the first conveyor 13 according to the position of the stirring device 15. In the embodiment of the present invention, when the position where the first position sensor acquires that the stirring device 15 is located at the highest end, the controller controls the conveyor belt of the first conveyor 13 to move downward; and when the position of the stirring device 15 acquired by the first position sensor is located at the lowest end, the controller controls the conveyor belt of the first conveying device 13 to move upwards until the stirring is finished, and the position of the stirring device 15 is restored to the highest end. Specifically, the stirring time may be 1 minute. The stirring frequency can be set by setting the speed at which the first motor moves the conveyor belt of the first conveyor 13, which, according to the current standards, can be set from 80/min to 100/min.
In an embodiment of the present invention, the present invention further comprises:
a second position sensor provided on the second conveyor 14 for acquiring the position of the density measuring device 16 when the second conveyor 14 is positioned above the laboratory measuring cylinder; preferably on a conveyor belt that is adjacent to the bottom or top pulley when not activated.
The controller is further configured to control the moving direction of the conveyor belt of the second conveyor 14 according to the position of the density measuring device 16. In this embodiment, after the second conveying device 14 rotates to above the experimental measuring cylinder, the controller controls the second conveying device 14 to drive the density measuring device to move downward, and when the density measuring device 16 descends to a preset position, the controller stops descending continuously; after stopping further lowering for a preset period of time or receiving another operating instruction, the second conveyor 14 is controlled to move upward to remove the density measuring device from the test cylinder. The preset time period can be set to 10s, 20s and other time periods for reading the measured density; while another operating instruction may be an instruction sent by the user, e.g. after reading the measured density, an operating instruction may be sent for rotating the first transfer device by the rotatable fixture 12 to above the laboratory cylinder for the next use.
In an embodiment of the present invention, referring to fig. 2, the automatic stirring density measuring device for particle analysis experiment further includes: and the switch button 19 is arranged on the base 11 and used for controlling the automatic stirring density measuring device for the particle analysis experiment to be switched on or switched off.
In an embodiment of the present invention, the hollow bracket is a hollow structure, and a wire is disposed in the hollow structure to electrically connect the switch button with the rotating electrical machine, the first electrical machine, and the second electrical machine; wherein the first motor is connected in parallel with the second motor.
In the embodiment of the present invention, the first motor is connected in parallel with the second motor, as an optional implementation manner, when the first conveyer 13 rotates to the position above the experimental cylinder, the first motor is connected to the wire inside the hollow bracket for electrical connection, and when the second conveyer 14 rotates to the position above the experimental cylinder through the rotatable fixing device, the second motor is connected to the wire inside the hollow bracket for electrical connection; the first motor and the second motor can be arranged at the pulley near the top end of the corresponding conveying device, and the purpose of controlling the corresponding conveying belt to move upwards or downwards is achieved by controlling the rotation of the corresponding pulley. In addition, when the first motor is connected with the conducting wire inside the hollow bracket, the first position sensor is connected with the conducting wire at the same time; similarly, when the second motor is connected with the conducting wire inside the hollow bracket, the second position sensor is connected with the conducting wire at the same time.
The utility model discloses an embodiment on the hollow support, be provided with scalable protruding structure rotatable fixing device is last to be provided with a plurality of draw-in groove, through change with the protruding structure of the different positions of joint is realized to the draw-in groove to it is first conveyer or second conveyer to change to be located the experiment graduated flask top.
Specifically, a snap spring or a spring can be arranged for each telescopic protrusion structure, or two or more telescopic protrusion structures which control the same conveying device can be provided with one snap spring or one spring, and when the conveying device above the experimental measuring cylinder is switched, the purpose of switching the conveying device above the experimental measuring cylinder is achieved by controlling the extension or shortening of the snap springs or the springs.
The embodiment of the utility model provides an in, the automatic density device that stirs of particle analysis experiment still includes:
the power plug 110 is used for connecting a power supply to the automatic stirring density measuring device for the particle analysis experiment so as to supply power to the automatic stirring density measuring device; the power plug may be a two-phase plug or a three-phase plug, and is not limited herein.
The embodiment of the utility model provides an in, the automatic density device that stirs of particle analysis experiment still includes:
and the electric power storage module is connected with the power socket and is used for storing electric energy when the automatic stirring density measuring device is switched on with a power supply through the power socket and does not operate so as to provide electric energy when the automatic stirring density measuring device in the particle analysis experiment is suddenly powered off in the operation process so as to maintain the normal operation of the automatic stirring density measuring device.
As follows, a specific example is illustrated:
the power switch 110 is connected with a power jack in a plugging mode, so that the automatic stirring density measuring device for the particle analysis experiment is powered on.
The first motor 17 drives the first conveying device 13 to move up and down, so that the stirring device fixed on the conveying belt of the first conveying device 13 can stir the sample in the experimental measuring cylinder up and down at the frequency of 80-100 times/minute, and the stirring time is controlled to be 1 minute through a timer and a controller. The first position sensor can be arranged on a conveyor belt close to the bottom pulley before the device is started, when the first position sensor detects that the stirring device ascends to the highest position, the controller controls the first conveyor device to move downwards, and the automatic stirring device is located at the highest position before the device is started by default.
When the stirring time reaches 1 minute, the controller controls the rotating motor to drive the rotatable fixing device 12 to rotate, so that the second conveying device 14 and the density measuring device 16 are arranged above the experimental measuring cylinder, and the experimental measuring cylinder is shown in fig. 3. After the second conveyor 14 is rotated to a preset time above the test cylinder, for example, 3s to 5s, the second conveyor carries the density measuring device 16 to move downward, and when the second conveyor descends to a preset depth in the test cylinder, the second conveyor stops moving downward, the preset position can be set by related personnel according to related standards, and an end position of the controller stopping moving downward is set, wherein the end position is obtained by a second sensor, and after the movement is stopped, the density measuring device 16 is balanced under the action of gravity and buoyancy, and the density of the sample can be directly read from the density measuring device.
After the density displayed on the density measuring device 16 is read or drops to the end for a preset time, the rotating motor drives the rotatable fixing device to resume rotating, so that the first conveying device with the stirring device 15 is placed above the experimental measuring cylinder again, and the next stirring and density measurement can be conveniently carried out.
The embodiment of the utility model provides an automatic density device that stirs of particle analysis experiment can realize automatic stirring and density measurement, and stirring time, stirring frequency, stirring dynamics and stirring height can obtain accurate control, effectively overcomes the various defects that can past manual stirring, has effectively improved the efficiency of particle analysis experiment.
The embodiment of the utility model provides a density measuring method is stirred automatically in particle analysis experiment is applied to the automatic density measuring device that stirs of particle analysis experiment that any one of above-mentioned embodiment described, it is shown with reference to fig. 4, the method includes:
step S42, fixing a first conveying device and a second conveying device which form a preset included angle in the vertical direction at the preset height of the hollow support, and switching the first conveying device or the second conveying device above the experimental measuring cylinder through rotation;
step S44, when the first conveying device is located above the experiment measuring cylinder, the stirring device moves up and down under the driving of a conveying belt of the first conveying device, and then the particles and the solution in the experiment measuring cylinder are stirred;
step S46, when the second conveying device is located above the experiment measuring cylinder, the density measuring device extends into the experiment measuring cylinder under the driving of the flexible rope on the conveying belt of the second conveying device and contacts with the solution in the experiment measuring cylinder, and then the density of the sample in the experiment measuring cylinder is measured;
the first conveying device is connected with the first motor, and when the first motor is started, a conveying belt of the first conveying device moves up and down; the second conveying device is connected with a second motor, and when the second motor is started, a conveying belt of the second conveying device moves up and down; the rotatable fixing device is connected with a rotating motor, and is driven to rotate by the rotating motor.
The embodiment of the utility model provides an in, the automatic density device that stirs of particle analysis experiment is electrically controlled device, drives the rotatory conveyer that comes the switching to lie in experiment graduated flask top through the rotating electrical machines.
The embodiment of the utility model provides an in, drive agitating unit and stir with 3 times 2s ' frequency as first conveyer's conveyer belt, stirring time can be set for according to the actual demand, like stirring 1min in the national relevant standard, can set for the speed that first motor drove first conveyer's conveyer belt motion to the number of times of stirring about in the control 1 min.
The embodiment of the utility model provides an in, can set up when the automatic agitating unit of granule analysis experiment circular telegram, acquiesce first conveyer and be located the top of experiment graduated flask, and after adopting density measuring device to measure the density of the sample in the experiment graduated flask, the rotating electrical machines drives rotatable fixing device rotatory to resume first conveyer and be located the top of experiment graduated flask, so that use next time.
The embodiment of the utility model provides a be the method embodiment, be about last automatic stirring density measuring's that the embodiment about automatic stirring density measuring device of particle analysis experiment corresponds the embodiment of the method, the content of explaining in the automatic stirring density measuring device embodiment of particle analysis experiment is equally suitable for in the automatic stirring density measuring's of this particle analysis experiment method embodiment, and simultaneously, the content of explaining in this automatic stirring method of particle analysis experiment is equally suitable for in the automatic stirring density measuring device embodiment of particle analysis experiment, in order to avoid repetition, it is unnecessary here to describe repeatedly.
The embodiment of the utility model provides an automatic stirring density measurement method of granule analysis experiment can realize automatic stirring and density measurement, and stirring time, stirring frequency, stirring dynamics and stirring height can obtain accurate control, effectively overcomes the various defects that can past manual stirring, has effectively improved the efficiency of granule analysis experiment.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The technical solution of the present invention has been described only with reference to a preferred embodiment, but to those skilled in the art, the idea of the embodiment of the present invention should be changed in the specific implementation and application scope, so that, in summary, the content of the present specification should not be understood as the limitation of the present invention, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a particle analysis experiment automatic stirring density measurement device which characterized in that includes:
a hollow support;
the base is used for placing an experiment measuring cylinder;
the rotatable fixing device is arranged at a preset height of the hollow support, is fixedly provided with a first conveying device and a second conveying device which form a preset included angle in the vertical direction, and is positioned above the experiment measuring cylinder through rotation switching to form the first conveying device or the second conveying device;
the stirring device is fixed on the first conveying device through an elastic fixing device, and when the first conveying device is positioned above the experimental measuring cylinder, the first conveying device is driven by a conveying belt of the first conveying device to move up and down so as to stir a sample in the experimental measuring cylinder, wherein the sample consists of particles and solution;
the density measuring device is connected to the second conveying device through a flexible rope, and when the second conveying device is positioned above the experimental measuring cylinder, the second conveying device is driven by a conveying belt of the second conveying device to extend into the experimental measuring cylinder for a preset depth so as to measure the density of the solution;
the first conveying device is connected with the first motor, and when the first motor is started, a conveying belt of the first conveying device moves up and down; the second conveying device is connected with a second motor, and when the second motor is started, a conveying belt of the second conveying device moves up and down; the rotatable fixing device is connected with a rotating motor, and is driven to rotate by the rotating motor.
2. The apparatus of claim 1, further comprising:
the timer is used for acquiring the stirring time of the stirring device;
and a controller for controlling the rotatable fixing device 12 to rotate by a preset angle when the stirring time reaches a preset time.
3. The apparatus of claim 2, further comprising:
the first position sensor is arranged on the first conveying device and used for acquiring the position of the stirring device;
the controller is further used for controlling the movement direction of the conveyor belt of the first conveying device according to the position of the stirring device.
4. The apparatus of claim 2,
the controller is further configured to:
when the rotatable fixing device rotates to the position above the experimental measuring cylinder, the second conveying device is controlled to drive the density measuring device to move downwards;
the device further comprises:
the second position sensor is arranged on the second conveying device and used for acquiring the position of the density measuring device when the second conveying device is positioned above the experiment measuring cylinder;
and the controller is also used for controlling the conveyor belt of the second conveying device to stop moving downwards continuously when the second position sensor acquires that the density measuring device descends to the preset position.
5. The apparatus of claim 1, further comprising:
and the switch button is arranged on the base to control the device to be switched on or switched off.
6. The apparatus of claim 5, wherein the hollow bracket is a hollow structure, and a wire is provided in the hollow structure to electrically connect the switch button with the rotary motor, the first motor, and the second motor;
wherein the first motor is connected in parallel with the second motor.
7. The device according to claim 6, characterized in that a telescopic protruding structure is arranged on the hollow bracket, a plurality of clamping grooves are arranged on the rotatable fixing device, and the position of the protruding structure clamped with the clamping grooves is changed, so that the first conveying device or the second conveying device is changed to be positioned above the experiment measuring cylinder.
8. The apparatus of claim 1, further comprising:
and the power plug is used for connecting a power supply to the device so as to supply power to the device.
9. The apparatus of claim 8, further comprising:
and the power storage module is used for providing a standby power supply for the device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020706929.7U CN212008204U (en) | 2020-04-30 | 2020-04-30 | Automatic stirring density measuring device for particle analysis experiment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020706929.7U CN212008204U (en) | 2020-04-30 | 2020-04-30 | Automatic stirring density measuring device for particle analysis experiment |
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| CN212008204U true CN212008204U (en) | 2020-11-24 |
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