CN208621461U - A kind of density tester - Google Patents

A kind of density tester Download PDF

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Publication number
CN208621461U
CN208621461U CN201820913572.2U CN201820913572U CN208621461U CN 208621461 U CN208621461 U CN 208621461U CN 201820913572 U CN201820913572 U CN 201820913572U CN 208621461 U CN208621461 U CN 208621461U
Authority
CN
China
Prior art keywords
density
liquid
reserve tank
liquid reserve
measuring pipet
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.)
Expired - Fee Related
Application number
CN201820913572.2U
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Chinese (zh)
Inventor
黄太忠
宋洋
苏中华
刘迪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Academy of Metrology and Quality Inspection
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Chongqing Academy of Metrology and Quality Inspection
Priority date (The priority date 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 date listed.)
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Priority to CN201820913572.2U priority Critical patent/CN208621461U/en
Application granted granted Critical
Publication of CN208621461U publication Critical patent/CN208621461U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of density testers, including liquid reserve tank, carrying disk, conduit and measuring pipet;The liquid reserve tank is for containing detection liquid, the open topped of the liquid reserve tank, the open-mouth is arranged in the carrying disk, the shape of its area and the liquid reserve tank horizontal cross-section is adapted, it can seal described open and can move in the vertical direction, the density of the carrying disk is no more than the density for detecting liquid;It is communicated with a drain pipe on the top of the side wall of the liquid reserve tank, the drain pipe is horizontally disposed, and lower edge is flushed with the liquid level of the detection liquid;The drain pipe is connected to by conduit with the measuring pipet;The measuring pipet is in test tube shape, and the measuring pipet is made of transparent material, and density graduation is indicated on side wall.The utility model can be used for detecting the solid of irregular shape, the solid that should not be contacted with liquid, have many advantages, such as that easy to use, detection is quick, adaptable.

Description

A kind of density tester
Technical field
The utility model belongs to testing equipment field, and in particular to a kind of density tester.
Background technique
In daily life, work and study, often come for the material for identifying certain articles or other needs Detect the density of some objects.Most common method is calculated by formula, i.e. ρ=m/V, but is not advised in the shape by many articles It is then difficult to measure, volume V is difficult to calculate.Again because many articles should not contact (such as food, nuclear fuel material, historical relic with liquid Deng), Archimedes method cannot be applicable in.
In practice, people use a variety of methods and measure volume, to seek density, such as application No. is The Chinese invention patent of 201610026857.X uses multistep to measure the volume of nuclear fuel material, it may be assumed that a, pellet to be measured is vertical It places, using the upper surface of line laser vertical irradiation pellet to be measured, the line laser falls in the projection of the upper surface of pellet to be measured The center of circle that line passes through upper surface;B, Image Acquisition;C, image preprocessing;D, image segmentation is fitted;E, Pixel Dimensions are calibrated;F, will The number of pixels at each position in pellet end face to be measured is multiplied with Pixel Dimensions calibration value obtains measurement numerical value.
However, this method is high, complicated for operation to equipment requirement precision.Usually in daily life, such height is not needed Precision, it is easy to use instead, detect rapidly require it is more universal.
Utility model content
In view of the above shortcomings of the prior art, the utility model provides a kind of density tester, it is intended to which solution is never advised The then technical problem of the Density Detection inconvenience of the solid of form, the article that should not be contacted with liquid, and it is easy to use, detection is suitable It is strong with property.
To achieve the goals above, the technical solution adopted in the utility model is as follows:
A kind of density tester, including liquid reserve tank, carrying disk, conduit and measuring pipet;The liquid reserve tank is for containing detection The open-mouth, area and the liquid reserve tank horizontal cross-section is arranged in liquid, the open topped of the liquid reserve tank, the carrying disk Shape is adapted, and can be sealed described open and can be moved in the vertical direction, the density of the carrying disk is not more than the inspection Survey the density of liquid;It is communicated with a drain pipe on the top of the side wall of the liquid reserve tank, the drain pipe is horizontally disposed, lower edge It is flushed with the liquid level of the detection liquid;The drain pipe is connected to by conduit with the measuring pipet;The measuring pipet is in test tube shape, The measuring pipet is made of transparent material, and density graduation is indicated on side wall.
Further, the liquid reserve tank is cuboid or cylindrical body.
Further, the groove of several vertical directions is provided on the inner wall of the liquid reserve tank, in the outer of the carrying disk Edge position corresponding with the groove is provided with the fixture block of outwardly convex, for being connected in corresponding groove.
Further, it is provided with valve on the drain pipe, for controlling the opening and closing of drain pipe.
Further, permeability cell is communicated on the drain pipe, the opening upwards of the permeability cell are used for Balance Air Pressure.
Further, it is provided with through-hole on the top of the side wall of the liquid reserve tank, the loading corresponding with the lead to the hole site It is provided with tapped blind hole in the outer rim of disk, for connecting lock-screw.
It further, further include measuring pipet fixed frame, the measuring pipet fixed frame in horizontally disposed rod-shaped, fix by head end On the liquid reserve tank, tail end is the bayonet being adapted with the measuring pipet outer diameter, for being clamped the measuring pipet.
Further, the head end of the measuring pipet fixed frame is provided with sucker, for forming absorption connection with the liquid reserve tank.
Further, the conduit is made of soft material.
Further, the density value ρ of the density graduation is obtained by the following formula:
In formula, ρ is the density value of examined object, ρLiquidFor the density for detecting liquid, mDiskFor the quality of carrying disk, VRowTo be discharged into The volume of detection liquid in the measuring pipet.
Compared with prior art, the utility model has the following beneficial effects:
1, the utility model uses Archimedes principle and stress balance for basic model, using suitable detection liquid conduct Medium is detected, the article of any shape can be fast and accurately detected.
2, it since article is placed on carrying disk, is not contacted with detection liquid, so that the utility model can be widely used for big portion Branch is closed, such as food, nuclear fuel material, historical relic.
3, the utility model, which only passes through liquid reserve tank, carrying disk, conduit and measuring pipet, can be completed detection, and structure is simple, makes With convenient, and low processing cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In attached drawing: 1-liquid reserve tank;11-drain pipes;12-valves;13-permeability cells;2-carrying disks;21-locking screws Nail;3-conduits;4-measuring pipets;41-density graduations;5-measuring pipet fixed frames;6-detection liquid.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below.
As shown in Figure 1, a kind of density tester, including liquid reserve tank 1, carrying disk 2, conduit 3 and measuring pipet 4;The liquid storage The open-mouth, area and institute is arranged for containing detection liquid 6, the open topped of the liquid reserve tank 1, the carrying disk 2 in case 1 The shape for stating 1 horizontal cross-section of liquid reserve tank is adapted, and can be sealed described open and can be moved in the vertical direction, the carrying disk Density of 2 density no more than the detection liquid 6;A drain pipe 11, institute are communicated on the top of the side wall of the liquid reserve tank 1 It states drain pipe 11 to be horizontally disposed with, lower edge is flushed with the liquid level of the detection liquid 6;The drain pipe 11 by conduit 3 with it is described Measuring pipet 4 is connected to;The measuring pipet 4 is in test tube shape, and the measuring pipet 4 is made of transparent material, and density quarter is indicated on side wall Degree 41.
Since the density of carrying disk 2 is no more than the density of the detection liquid 6, carrying disk 2 can be made to float on the detection The surface of liquid 6, make at this time detect liquid 6 liquid level flushed with the lower edge of leakage fluid dram so that the gravity under 2 light condition of carrying disk with Buoyant equilibrium.When determinand is put into carrying disk 2, and reaches new stress balance, discharge detection liquid 6 volume then just with The volume of determinand is suitable, and since the density of the quality of carrying disk 2, detection liquid 6 is all known, and the internal diameter of measurement pipe is The relationship known, therefore only need to establish between bulking value and the density of determinand, then be labeled in measurement pipe, it can be realized Rapid survey.
As optimization, for the ease of processing and using, the liquid reserve tank 1 is cuboid or cylindrical body.
Detection liquid 6 can be encapsulated into liquid reserve tank 1 according to different application scenarios: when the lesser article of detection quality, Kerosene can be used in detection liquid 6;When the temperature is low, alcohol can be used;When the detection biggish article of quality, for extensive magnitude Journey can use carbon tetrachloride or mercury.
In order to facilitate identification, the dyeing of liquid 6 can also be will test.
As optimization, the groove of several vertical directions is provided on the inner wall of the liquid reserve tank 1, in the carrying disk 2 Outer rim position corresponding with the groove be provided with the fixture block of outwardly convex, for being connected in corresponding groove.This The inclination of carrying disk 2 can be effectively prevented in sample, influences measurement effect.
As optimization, it is provided with valve 12 on the drain pipe 11, for controlling the opening and closing of drain pipe 11.It sets in this way Meter, can the utility model when not in use, valve 12 is closed, prevent detection liquid 6 outflow.
As optimization, permeability cell 13 is communicated on the drain pipe 11, the opening upwards of the permeability cell 13 are used for Equilibrium air pressure.Gas extra inside system can be discharged when in use in this way, prevent imbalance of pressure.And opening upwards, then plus The length of upper permeability cell 13 itself can be effectively prevented detection liquid 6 and overflow the utility model.
As optimization, it is provided with through-hole on the top of the side wall of the liquid reserve tank 1, the load corresponding with the lead to the hole site It is provided with tapped blind hole in the outer rim of object disk 2, for connecting lock-screw 21.It designs, can not used in the utility model in this way When lock carrying disk 2, prevent from wearing.
It further include measuring pipet fixed frame 5 as optimization, the measuring pipet fixed frame 5 is in horizontally disposed rod-shaped, head end It is fixed on the liquid reserve tank 1, tail end is the bayonet being adapted with 4 outer diameter of measuring pipet, for being clamped the amount Liquid pipe 4.In this way convenient for observation, meanwhile, also it can effectively protect measuring pipet 4.
As optimization, the head end of the measuring pipet fixed frame 5 is provided with sucker, adsorbs for being formed with the liquid reserve tank 1 Connection.Make to be formed between measuring pipet fixed frame 5 and liquid reserve tank 1 in this way and be detachably connected, convenient for storing when not in use.
As optimization, the conduit 3 is made of soft material.It both is also convenient for surveying convenient for storing when not in use in this way After amount, measuring pipet 4 is inverted, is back to detection liquid 6 in liquid reserve tank 1.
As optimization, the density value ρ of the density graduation 41 is obtained by the following formula:
In formula, ρ is the density value of examined object, ρLiquidFor the density for detecting liquid, mDiskFor the quality of carrying disk, VRowTo be discharged into The volume of detection liquid in the measuring pipet 4.
The above embodiments of the present invention be only be illustrate examples for clearly illustrating the present invention, and not be to this reality With the restriction of novel embodiment.For those of ordinary skill in the art, may be used also on the basis of the above description To make other various forms of variations and variation.Here all embodiments can not be exhaustive.It is all to belong to this reality With novel technical solution changes and variations that derived from still in the column of the protection scope of the utility model.

Claims (10)

1. a kind of density tester, which is characterized in that including liquid reserve tank, carrying disk, conduit and measuring pipet;The liquid reserve tank is used for Detection liquid, the open topped of the liquid reserve tank are contained, the open-mouth, area and the liquid reserve tank water is arranged in the carrying disk The shape of plane section is adapted, and can be sealed described open and can be moved in the vertical direction, the density of the carrying disk is little In the density of the detection liquid;It is communicated with a drain pipe on the top of the side wall of the liquid reserve tank, the drain pipe level is set It sets, lower edge is flushed with the liquid level of the detection liquid;The drain pipe is connected to by conduit with the measuring pipet;The measuring pipet In test tube shape, the measuring pipet is made of transparent material, and density graduation is indicated on side wall.
2. density tester according to claim 1, which is characterized in that the liquid reserve tank is cuboid or cylindrical body.
3. density tester according to claim 2, which is characterized in that be provided on the inner wall of the liquid reserve tank several The groove of vertical direction is provided with the fixture block of outwardly convex in the outer rim of carrying disk position corresponding with the groove, For being connected in corresponding groove.
4. density tester according to claim 1, which is characterized in that be provided with valve on the drain pipe, use In the opening and closing of control drain pipe.
5. density tester according to claim 1, which is characterized in that it is communicated with permeability cell on the drain pipe, The opening upwards of the permeability cell are used for equilibrium air pressure.
6. density tester according to claim 1, which is characterized in that be provided on the top of the side wall of the liquid reserve tank logical Hole is provided with tapped blind hole in the outer rim of the carrying disk corresponding with the lead to the hole site, for connecting lock-screw.
7. density tester according to claim 1, which is characterized in that further include measuring pipet fixed frame, the measuring pipet In horizontally disposed rod-shaped, head end is fixed on the liquid reserve tank fixed frame, and tail end is and the measuring pipet outer diameter phase The bayonet of adaptation, for being clamped the measuring pipet.
8. density tester according to claim 7, which is characterized in that the head end of the measuring pipet fixed frame is provided with suction Disk, for forming absorption connection with the liquid reserve tank.
9. density tester according to claim 1, which is characterized in that the conduit is made of soft material.
10. density tester according to claim 1, which is characterized in that the density value ρ of the density graduation is by following public affairs Formula obtains:
In formula, ρ is the density value of examined object, ρLiquidFor the density for detecting liquid, mDiskFor the quality of carrying disk, VRowIt is described to be discharged into The volume of detection liquid in measuring pipet.
CN201820913572.2U 2018-06-13 2018-06-13 A kind of density tester Expired - Fee Related CN208621461U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820913572.2U CN208621461U (en) 2018-06-13 2018-06-13 A kind of density tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820913572.2U CN208621461U (en) 2018-06-13 2018-06-13 A kind of density tester

Publications (1)

Publication Number Publication Date
CN208621461U true CN208621461U (en) 2019-03-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820913572.2U Expired - Fee Related CN208621461U (en) 2018-06-13 2018-06-13 A kind of density tester

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110567844A (en) * 2019-10-10 2019-12-13 青海省交通科学研究院 testing equipment and method for soil density in severe cold region

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110567844A (en) * 2019-10-10 2019-12-13 青海省交通科学研究院 testing equipment and method for soil density in severe cold region

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Granted publication date: 20190319