CN203069317U - High-precision measuring cylinder - Google Patents
High-precision measuring cylinder Download PDFInfo
- Publication number
- CN203069317U CN203069317U CN 201320046380 CN201320046380U CN203069317U CN 203069317 U CN203069317 U CN 203069317U CN 201320046380 CN201320046380 CN 201320046380 CN 201320046380 U CN201320046380 U CN 201320046380U CN 203069317 U CN203069317 U CN 203069317U
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- CN
- China
- Prior art keywords
- measuring cylinder
- tube
- utility
- model
- graduated cylinder
- 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 relates to a high-precision measuring cylinder, comprising a main cylinder, an auxiliary cylinder and a connection conduit. The high-precision measuring cylinder provided by the utility model has the advantages of a simple structure, low cost and easy and convenient usage; the measuring cylinder provided by the utility model has a volume measurement function as a traditional measuring cylinder does and is also capable of greatly improving measurement accuracy; in particular, when the volume of an irregular solid is to be measured by using a drainage method, the measuring cylinder provided by the utility model has higher precision compared with the traditional measuring cylinder, is convenient and fast to use and can effectively simplify the operation process of the traditional measuring cylinder for improvement of measurement accuracy, shorten measurement time and improve measurement efficiency.
Description
Technical field
The utility model relates to a kind of graduated cylinder, relates in particular to a kind of high precision graduated cylinder.
Background technology
At present, carry out in the students practise inquiry activity of cubing at relevant use graduated cylinder, when utilizing existing graduated cylinder to carry out cubing, in many experiments, on the one hand because traditional graduated cylinder scale division value is bigger than normal, measuring error is bigger, and especially density measurement and the actual value that causes owing to the cubing error in the measurement of density has big difference, and experimental data lacks persuasion; Often will use auxiliary appliances such as transfer pipet for reducing experimental error on the other hand, process is numerous and diverse, and cost is higher, and conventional efficient is low.
The utility model content
Technical problem to be solved in the utility model provides that a kind of making is simple, cost is lower, easy and simple to handle, can effectively reduce experimental error, improves a kind of high precision graduated cylinder of measuring accuracy.
For addressing the above problem, a kind of high precision graduated cylinder described in the utility model, this graduated cylinder comprise main tube, secondary tube and connecting duct, it is characterized in that:
Described main tube and secondary tube constitute linker by connecting duct.
The range of described secondary tube is the scale division value of described main tube.
The utility model compared with prior art has the following advantages:
1, because main tube described in the utility model and secondary tube constitute linker by connecting duct, the one-shot measurement of volume is changed traditional graduated cylinder twice measurement simultaneously of into major and minor tube; Can effectively reduce the use of other experiment auxiliary appliance, both reduce experimental cost, can effectively simplify experimentation again, shorten experimental period, improve conventional efficient.
2, because the range of secondary tube described in the utility model is the scale division value of described main tube, reading with traditional graduated cylinder during to volume is added by exact value to be estimated the value of reading and is converted into once a main tube exact value and adds the secondary tube of a secondary exact value and add secondary tube and estimate the value of reading, increased exact value figure place and estimate the value of reading numerical digit after move, reduced to estimate the value of reading to the influence of measurement result, thereby effectively reduced error, improved the degree of accuracy of measuring.
3, the utility model is made simply, and cost is lower, and is easy and simple to handle, the measuring accuracy height.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Among the figure: the secondary tube of 1-master's tube 2-3-connecting duct
Embodiment
As shown in Figure 1, a kind of high precision graduated cylinder, this high precision graduated cylinder comprise main tube 1, secondary tube 2, connecting duct 3.
Wherein, main tube constitutes linker with secondary tube by connecting duct, and connecting duct uses heavy wall soft rubber conduit, to reduce owing to the influence of major and minor tube liquid surface lifting to catheter volume; Main tube scale registration comprises secondary tube 0 scale with down to the volume between the main tube.
The range of secondary tube is the scale division value of main tube, and the scale division value of secondary tube is exactly the degree of accuracy of this graduated cylinder.
(1) the major and minor tube of this graduated cylinder is vertically placed, made major and minor tube height basically identical.
(2) testing liquid is poured into this graduated cylinder master tube.
(3) in the vertical direction is adjusted secondary tube position, makes main tube liquid level equal with nearest following scale mark just, reads its registration 1.
(4) observe secondary tube liquid level, read its registration 2.
(5) registration 1 and registration 2 additions are namely got the volume of the liquid of surveying.
(1) the major and minor tube of this graduated cylinder is vertically placed, made major and minor tube height basically identical.
(2) suitable quantity of water is poured into this graduated cylinder master tube.
(3) measure the volume V that pours water into (3) among the embodiment 1-(5)
1
(4) solid to be measured is put into this graduated cylinder master tube, and measured the cumulative volume volume V of solid and water with (3) among the embodiment 1-(5)
2
(5) use V
2Deduct V
1Namely get the volume of the solid of surveying.
Claims (2)
1. high precision graduated cylinder is characterized in that: this graduated cylinder comprises main tube (1), secondary tube (2), and described main tube (1) and secondary tube (2) are by connecting duct (3) formation linker.
2. a kind of high precision graduated cylinder as claimed in claim 1 is characterized in that: the range of described secondary tube (2) is the scale division value of described main tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046380 CN203069317U (en) | 2013-01-25 | 2013-01-25 | High-precision measuring cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320046380 CN203069317U (en) | 2013-01-25 | 2013-01-25 | High-precision measuring cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069317U true CN203069317U (en) | 2013-07-17 |
Family
ID=48768091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320046380 Expired - Fee Related CN203069317U (en) | 2013-01-25 | 2013-01-25 | High-precision measuring cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203069317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066387A (en) * | 2016-05-24 | 2016-11-02 | 中国矿业大学(北京) | A kind of broken swollen coefficient measuring device, method and the measuring method of water absorption rate |
-
2013
- 2013-01-25 CN CN 201320046380 patent/CN203069317U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066387A (en) * | 2016-05-24 | 2016-11-02 | 中国矿业大学(北京) | A kind of broken swollen coefficient measuring device, method and the measuring method of water absorption rate |
| CN106066387B (en) * | 2016-05-24 | 2018-08-28 | 中国矿业大学(北京) | A kind of measurement method of broken swollen coefficient measuring device, method and water absorption rate |
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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: 20130717 Termination date: 20140125 |