CN2872298Y - Device for measuring small-article volume and density - Google Patents
Device for measuring small-article volume and density Download PDFInfo
- Publication number
- CN2872298Y CN2872298Y CN 200520126159 CN200520126159U CN2872298Y CN 2872298 Y CN2872298 Y CN 2872298Y CN 200520126159 CN200520126159 CN 200520126159 CN 200520126159 U CN200520126159 U CN 200520126159U CN 2872298 Y CN2872298 Y CN 2872298Y
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- density
- electronic balance
- liquid
- fine rule
- supporting body
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Abstract
This utility model relates to a measuring device for the volume and density of small objects by using an electronic balance, with a technical proposal: it includes an electronic balance provided with a weighing supporting body, a string with no need for the electronic balance to support is hung over the supporting body, an openmouthed supporter is connected to the lower end of the string. By using the utility model, the mass of the small object W[object] and the mass of the liquid with a known density drained by its complete submergence W can be measured; using W = F[float]/g, F[float] = Rho [liquid] g V[drained], V[drained] = V[object] = W/Rho[liquid] and Rho [object] = Rho [liquid] W[object]/W can be determined The device has advantages of simple structure, easy operation and high measurement precision.
Description
Technical field
The utility model relates to the device of a kind of measurement volumes and density, relates in particular to a kind of device that utilizes electronic balance to measure little article volume and density.
Background technology
At present, experiment is generally adopted the graduated cylinder drainage with the volume of measuring little article, utilize the difference of reading of liquid in the graduated cylinder that adds article to be measured front and back, be the volume of the article of surveying, because the cylinder scale precision is low, the subjective influence of people's observation is bigger, and the reading accuracy of naked eyes is limited, and therefore the measuring error of this method is big, precision is not high.
Summary of the invention
The technical assignment of the invention is at the existing in prior technology shortcoming, and the technical scheme of the device of little article volume of a kind of high-acruracy survey and density is provided, and this apparatus structure is simple, handled easily, measuring accuracy height.
The technical solution of the utility model is to realize by following technical measures, it comprises electronic balance, it is characterized in that: the overhung of described electronic balance supporting body has weight not act on electronic balance to measure fine rule on the article supporting body, and the lower end of fine rule is connected with uncovered holder carrier.
Described line can be by other member supports such as supports, its weight does not act on the balance, for easy to use, improve measuring accuracy, electronic balance of the present utility model has weight not act on cover body on the supporting body, fixes wiredly on the upper wall of cover body, simplifies the structure like this, can in the process of measuring, avoid the interference of extraneous factor, for example gentle breeze etc. as far as possible.
The diameter of described fine rule can be tried one's best carefully, specifically can adopt the waterline of 1 micron～20 microns of diameters.
Be placed with container on the supporting body of described electronic balance, the holder carrier of fine rule lower end is arranged in container.Can fill in the container and determine density liquid, volume of a container can be placed in the cover body satisfied, satisfy under other prerequisite of measuring pacing items big as far as possible, like this, after placing article to be measured on the holder carrier, the liquid level in the container rises, when line carefully after to a certain degree, because the volume of container is bigger, the volume of fine rule draining can be ignored after liquid level rose.
But the side of operating cover body for convenience is provided with the door of folding.Hommization is compared in this design, meets people's operating habit.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Wherein, 1. leg, 2. electronic balance, 3., 4. cover body, 5. fine rule, 6. little article, 7. holder carrier, 8. container, 9. supporting body, 10. operational zone, 11. viewing areas.
Embodiment
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by an embodiment.
As Fig. 1: the utility model comprises the electronic balance 2 that has supporting body 9, and electronic balance 2 is provided with weight and does not act on cover body 4 on the supporting body 9, but at least one side in the left and right side of cover body 4 is provided with the door 3 of folding.Be fixed with fine rule 5 on the upper wall of cover body 4, the lower end of fine rule 5 is connected with uncovered holder carrier 7, and the diameter of fine rule 5 is several microns～20 microns, and electronic balance 2 has leg 1, operational zone 10 and viewing area 11.
It is as follows to utilize the utility model to measure volume and its concrete measuring process of density of little article:
1.. at first on the electronic balance 2 of high measurement accuracy, measure the quality W thing of little article 6;
2.. the container 8 that will fill the known density normal fluid is placed on the article supporting body 9 to be measured of electronic balance 2 of high measurement accuracy, gets fine rule 5, and its lower end is connected with holder carrier 7, holder carrier 7 is immersed in the liquid in the container 8 fully the zero clearing or the W that takes reading
1, the weight of the holder carrier 7 of this moment fine rule 5 and connection thereof does not all act on the electronic balance 2 (to be annotated: W
1Be immersed in the quality of 5 the discharge opeing bodies of part fine rule in the liquid for holder carrier 7);
3.. little article 6 to be measured are put into holder carrier 7, little article 6 are immersed in the liquid fully, the holder carrier 7 of this moment fine rule 5 and connection thereof, the weight of the article 6 on the holder carrier 7 all do not act on the electronic balance 2, and W takes reading
2(annotate: little article 6 should soak the enough time at this liquid before putting into, so that it absorbs liquid to saturated, take out and dry lip-deep liquid, in time drop in the holder carrier 7 and measure, and attention can not spill liquid)
4.. adopt formula W=W
2-W
1(when 2. going on foot zero clearing, W
1=0), V
Row=V
Thing=W/ ρ
Liquid, ρ
Thing=ρ
LiquidW
Thing/ W calculates the volume V that tries to achieve article 6 to be measured
ThingAnd density p
Thing
This method is simple to operate, if the precision of electronic balance is 0.1mg, the volume accuracy that then uses this method to measure little article can reach 0.1mm
3, the corresponding precision of surveying little article density can reach 0.1mg/cm
3, can make the utility model measuring accuracy higher thus.
Claims (5)
1. device of measuring little article volume and density, it comprises electronic balance, it is characterized in that: the overhung of described electronic balance supporting body has weight not act on electronic balance to measure fine rule on the article supporting body, and the lower end of fine rule is connected with uncovered holder carrier.
2. the device of little article volume of measurement according to claim 1 and density is characterized in that: described electronic balance is provided with weight and does not act on the sealed cover body that has switching door on the supporting body, is fixed with fine rule on the upper wall of cover body.
3. the device of little article volume of measurement according to claim 1 and 2 and density is characterized in that: the diameter of described fine rule is 1 micron～20 microns a waterline.
4. the device of little article volume of measurement according to claim 2 and density is characterized in that: but the side of described cover body is provided with the door of folding.
5. the device of little article volume of measurement according to claim 1 and 2 and density is characterized in that: be placed with container on the supporting body of described electronic balance, the holder carrier of fine rule lower end is arranged in container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126159 CN2872298Y (en) | 2005-12-20 | 2005-12-20 | Device for measuring small-article volume and density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520126159 CN2872298Y (en) | 2005-12-20 | 2005-12-20 | Device for measuring small-article volume and density |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872298Y true CN2872298Y (en) | 2007-02-21 |
Family
ID=37740648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520126159 Expired - Fee Related CN2872298Y (en) | 2005-12-20 | 2005-12-20 | Device for measuring small-article volume and density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872298Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990019A (en) * | 2017-06-01 | 2017-07-28 | 成都理工大学 | A kind of method for measuring ore body weight |
| CN109000599A (en) * | 2018-09-28 | 2018-12-14 | 山东大学 | For the volume measuring system and method for closing water-filling solution cavity |
-
2005
- 2005-12-20 CN CN 200520126159 patent/CN2872298Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990019A (en) * | 2017-06-01 | 2017-07-28 | 成都理工大学 | A kind of method for measuring ore body weight |
| CN109000599A (en) * | 2018-09-28 | 2018-12-14 | 山东大学 | For the volume measuring system and method for closing water-filling solution cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 Termination date: 20100120 |