CN202974396U - Scale - Google Patents
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- Publication number
- CN202974396U CN202974396U CN 201220627382 CN201220627382U CN202974396U CN 202974396 U CN202974396 U CN 202974396U CN 201220627382 CN201220627382 CN 201220627382 CN 201220627382 U CN201220627382 U CN 201220627382U CN 202974396 U CN202974396 U CN 202974396U
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- CN
- China
- Prior art keywords
- weight
- scale
- steelyard
- arm beam
- measured
- 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
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Abstract
The utility model discloses a scale. The scale includes a supporting frame, a scale beam with graduations, a weight and a to-be-measured weight of which the volume is known, and a container; the supporting frame is supported at the center point of the scale beam with graduations; the scale beam with graduations can rotate horizontally; the weight is slidingly hung at one end of the scale beam with graduations; the to-be-measured weight of which the volume is known is hung at the other end of the scale beam with graduations; the container is filled with water; and the container is arranged at one side below the weight. With the scale adopted, density can be measured fast.
Description
Technical field
The utility model relates to a kind of scale, especially for the scale of density measurement.
Background technology
In the physics subject, density is an important parameter of material, but density can not directly draw for something, has therefore brought many inconvenience to some researchs.
Summary of the invention
For measuring fast the density of material, the utility model provides a kind of scale.
For achieving the above object, a kind of scale, comprise bracing frame, with weight to be measured and the container of the scale arm beam of steelyard, weight and known volume, bracing frame is supported on the midpoint with the scale arm beam of steelyard, can horizontally rotate with the scale arm beam of steelyard, weight slides hangs over an end with the scale arm beam of steelyard, and the weight to be measured of known volume hangs over the other end with the scale arm beam of steelyard; In described container, water is housed, container is positioned at a side of weight below.
The principle of work of above-mentioned scale is: first the weight to be measured of known volume is suspended on the end with the scale arm beam of steelyard, remember that this hitch point is a to the distance of mid point, the weight gravity to be measured of note known volume is W, make with scale arm beam of steelyard balance by moving heavy object, remember that this point is b to the distance of mid point, the gravity of note weight is G; Then, horizontally rotate with the scale arm beam of steelyard, and keep the invariant position of weight, make weight put in container, the note buoyancy of water is F, is moving the weight to be measured of known volume with the scale arm beam of steelyard at last, make with scale arm beam of steelyard balance, remember that this point is a to the distance of mid point
1When in balance for the first time, Wa=Gb is arranged, when balance for the second time, (W-F) b=Ga is arranged
1, can get W/F=b/(a-a thus
1), the volume of the weight to be measured of known volume is known again, and the density of water is known, and the weight to be measured of known volume equates with the volume of the water of discharge, note V, so, ρ gV/ ρ
WaterGV=b/(a-a
1), Gu, ρ=b/(a-a
1) ρ
WaterThereby, draw density.The density of utilizing this scale to record, method is simple, and is quick.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is for putting into weight to be measured structural representation in container.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
As shown in Figure 1, scale comprises bracing frame 1, with weight to be measured 4 and the container 5 of the scale arm beam of steelyard 2, weight 3 and known volume, bracing frame 1 is supported on the midpoint with the scale arm beam of steelyard 2, can horizontally rotate with the scale arm beam of steelyard 2, weight 3 slides hangs over an end with the scale arm beam of steelyard 2, and the weight to be measured 4 of known volume hangs over the other end with the scale arm beam of steelyard 2; In described container 5, water is housed, container 5 is positioned at a side of weight 3 belows.
The principle of work of above-mentioned scale is: first the weight to be measured 4 of known volume is suspended on the end with the scale arm beam of steelyard 2, remember that this hitch point is a to the distance of mid point, weight to be measured 4 gravity of note known volume are W, make with the scale arm beam of steelyard 2 balances by moving heavy object 3, remember that this point is b to the distance of mid point, the gravity of note weight 3 is G; Then, horizontally rotate with the scale arm beam of steelyard 2, and keep the invariant position of weight 3, make weight 3 put in container 5, the note buoyancy of water is F, is moving the weight to be measured 4 of known volume with the scale arm beam of steelyard 2 at last, make with the scale arm beam of steelyard 2 balances, remember that this point is a to the distance of mid point
1When in balance for the first time, Wa=Gb is arranged, when balance for the second time, (W-F) b=Ga is arranged
1, can get W/F=b/(a-a thus
1), the volume of the weight to be measured 4 of known volume is known again, and the density of water is known, and the weight to be measured 4 of known volume equates with the volume of the water of discharging, note V, so, ρ gV/ ρ
WaterGV=b/(a-a
1), Gu, ρ=b/(a-a
1) ρ
WaterThereby, draw density.The density of utilizing this scale to record, method is simple, and is quick.
Claims (1)
1. scale, it is characterized in that: comprise bracing frame, with weight to be measured and the container of the scale arm beam of steelyard, weight and known volume, bracing frame is supported on the midpoint with the scale arm beam of steelyard, can horizontally rotate with the scale arm beam of steelyard, weight slides hangs over an end with the scale arm beam of steelyard, and the weight to be measured of known volume hangs over the other end with the scale arm beam of steelyard; In described container, water is housed, container is positioned at a side of weight below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627382 CN202974396U (en) | 2012-11-26 | 2012-11-26 | Scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627382 CN202974396U (en) | 2012-11-26 | 2012-11-26 | Scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974396U true CN202974396U (en) | 2013-06-05 |
Family
ID=48515455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220627382 Expired - Fee Related CN202974396U (en) | 2012-11-26 | 2012-11-26 | Scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434692A (en) * | 2013-08-17 | 2013-12-11 | 臧学兰 | Traditional Chinese medicine distributor |
| CN107941653A (en) * | 2017-11-13 | 2018-04-20 | 广东永衡良品科技有限公司 | A kind of electronic scale of measurable object density |
-
2012
- 2012-11-26 CN CN 201220627382 patent/CN202974396U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434692A (en) * | 2013-08-17 | 2013-12-11 | 臧学兰 | Traditional Chinese medicine distributor |
| CN103434692B (en) * | 2013-08-17 | 2015-04-01 | 卢军 | Traditional Chinese medicine distributor |
| CN107941653A (en) * | 2017-11-13 | 2018-04-20 | 广东永衡良品科技有限公司 | A kind of electronic scale of measurable object density |
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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: 20130605 Termination date: 20131126 |