CN204165530U - Syringe type measuring instrument of microdisplacement - Google Patents
Syringe type measuring instrument of microdisplacement Download PDFInfo
- Publication number
- CN204165530U CN204165530U CN201420296521.1U CN201420296521U CN204165530U CN 204165530 U CN204165530 U CN 204165530U CN 201420296521 U CN201420296521 U CN 201420296521U CN 204165530 U CN204165530 U CN 204165530U
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- cylinder
- piston
- microdisplacement
- measuring instrument
- type measuring
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Abstract
The utility model discloses a kind of syringe type measuring instrument of microdisplacement, for measuring small displacement quickly and easily.Described syringe type measuring instrument of microdisplacement, comprise first cylinder with the first diameter, one end and described first cylinder UNICOM and second cylinder with Second bobbin diameter that the other end opens wide, described first cylinder is built-in with first piston, the connecting rod of described first piston and the axis being parallel of described first cylinder and extend described first cylinder to the direction away from the second cylinder, the diameter of described first cylinder is the integral multiple of the diameter of described second cylinder, and described second cylinder has length indication line.Preferably, described second cylinder is built-in with the second piston.Gas or liquid is filled with between described second piston and described first piston.This syringe type measuring instrument of microdisplacement has structure and simply measures easy advantage.
Description
Technical field
The utility model relates to field of measuring technique, particularly relates to a kind of syringe type measuring instrument of microdisplacement.
Background technology
The accurate measurement of small displacement, has important application, traditional measuring method in a lot of field such as engineering, material analysis, precision optical machinery, automatically control, mainly uses optical lever method and clock gauge method.Along with the development of new technology, for obtaining higher measuring accuracy, reduce measuring error, the technology such as CCD camera technique, Moire fringe technology, Hall effect techniques, Michelson interferometer are all applied to measurement small displacement.
Such as, in michelson interferometry, Michelson interferometer index glass often moves the distance of λ/2, will to causing producing or disappearing an interference ring striped, and the number according to interference ring stripe order recognition just can calculate micro-displacement.
But in actual applications, under specific application scenarios, especially not high to accuracy requirement, but still need concrete numerical value or the estimation numerical value of measuring small displacement, when measuring object and measurement environment are not suitable for building complicated measurement mechanism simultaneously, under such as field environment, measure obtain small displacement with regard to needing a kind of measurement mechanism that can be fast and convenient.
Utility model content
Technical problem to be solved in the utility model is, provides a kind of syringe type measuring instrument of microdisplacement, for fast and convenient measurement small displacement.
In order to solve the problem, the utility model proposes a kind of syringe type measuring instrument of microdisplacement, comprise first cylinder with the first diameter, one end and described first cylinder UNICOM and second cylinder with Second bobbin diameter that the other end opens wide, described first cylinder is built-in with first piston, the connecting rod of described first piston and the axis being parallel of described first cylinder and extend described first cylinder to the direction away from the second cylinder, the diameter of described first cylinder is the integral multiple of the diameter of described second cylinder, and described second cylinder has length indication line.
Preferably, described second cylinder is built-in with the second piston.Gas or liquid is filled with between described second piston and described first piston.
Preferably, when described syringe type measuring instrument of microdisplacement is vertically placed, between described second piston and described first piston, be filled with gas or liquid.
Preferably, when there is no described second piston in described second cylinder, when described syringe type measuring instrument of microdisplacement is vertically placed, between described first piston and described second cylinder top, be partly filled with the liquid of non-volatile.
Preferably, described liquid is water or hydraulic oil.
Preferably, the diameter of described first cylinder is 10 millimeters, and described second drum diameter is 1 millimeter.
Preferably, the diameter span of described first cylinder is: be greater than 10 millimeters, is less than or equal to 100 millimeters, and described second drum diameter is 1 millimeter.
Preferably, described second piston is initially located at the place at zero point of the length indication line of described second cylinder.
Preferably, the minimum precision of the length indication line of described second cylinder is 1 millimeter.
A kind of syringe type measuring instrument of microdisplacement of the present utility model, structure is simple, installs convenient and is easy to carry about with one, can be used for fast and convenient measurement small displacement, especially expansion displacement amount.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of syringe type measuring instrument of microdisplacement of the present utility model;
The structural representation of another kind of embodiment when Fig. 2 is another kind of syringe type measuring instrument of microdisplacement vertical survey of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the structural representation of a kind of embodiment of syringe type measuring instrument of microdisplacement of the present utility model is given.Described syringe type measuring instrument of microdisplacement, comprise first cylinder 101 with the first diameter D1, one end and described first cylinder 101 UNICOM and second cylinder 102 with Second bobbin diameter d2 that the other end opens wide, described first cylinder 101 is built-in with first piston 103, the connecting rod of described first piston and the axis being parallel of described first cylinder 101 and extend described first cylinder 101 to the direction away from the second cylinder 102, the diameter D1 of described first cylinder 101 is integral multiples of the diameter d 2 of described second cylinder 102, described second cylinder has length indication line, described marking line has zero point and precision is 1 millimeter.Described second cylinder 102 is built-in with the second piston 104.
Be filled with gas or liquid 105 between described second piston and described first piston, described liquid can be water or hydraulic oil, and described gas can be nitrogen or air.Now, may be used for this syringe type measuring instrument of microdisplacement of horizontal or vertical placement and carry out micro-displacement measurement.When filled gas or liquid pressurized lower volume compress less, according to constancy of volume principle, the micro-displacement of known left side first piston, the larger displacement of right side the second piston can be caused, like this by the displacement equations of the second cylinder, read the displacement of millimeter magnitude on the second cylinder, according to the micro-displacement numerical value that square can be back-calculated to obtain first piston of diameter ratio.
ΔV
1＝ΔV
2
S
1·Δl
1＝s
2·ΔL
2
Such as, the diameter D1 of first piston is 10 millimeters, and the diameter d 2 of described second piston is 1 millimeter, then the micro-displacement of left side first piston can amplify 100 times at piston place, right side second, in order to ensure constant temperature, and can in a measuring instrument outside design isoperibol.In order to lower the influence of crust deformation of liquid, can correct according to liquid deformation coefficient.Further, the value of the diameter D1 of described first piston can also be between 10 millimeters to 100 millimeters, and described span comprises 10 millimeters and 100 millimeters.
As shown in Figure 2, the structural representation of a kind of embodiment of syringe type measuring instrument of microdisplacement of the present utility model is given.Only be suitable for vertical mode to measure, described syringe type measuring instrument of microdisplacement, comprise first cylinder 201 with the first diameter D1, one end and described first cylinder 201 UNICOM and second cylinder 202 with Second bobbin diameter d2 that the other end opens wide, described first cylinder 201 is built-in with first piston 203, the connecting rod of described first piston 203 and the axis being parallel of described first cylinder 201 and extend described first cylinder 201 to the direction away from the second cylinder 202, the diameter D1 of described first cylinder 201 is integral multiples of the diameter d 2 of described second cylinder 202, described second cylinder has length indication line, described marking line has zero point and precision is 1 millimeter.
During vertical survey, the diameter D1 of first piston is 10 millimeters, and the diameter d 2 of described second piston is 1 millimeter, then the micro-displacement of left side first piston can amplify 100 times at piston place, right side second, in order to ensure constant temperature, in a measuring instrument outside design isoperibol.In order to lower the influence of crust deformation of liquid, can correct according to liquid deformation coefficient.Further, the value of the diameter D1 of described first piston can also be between 10 millimeters to 100 millimeters, and described span comprises 10 millimeters and 100 millimeters.
When actual measurement, first cylinder of described syringe type measuring instrument of microdisplacement can be fixed, and the connecting rod of described first piston connects with the expanding noodles of measured object or expansion point, perfect condition just connects and do not produce any bulging force to being applied on the connecting rod of described first piston.Before measurement, the second piston or liquid level initialization should be demarcated the zeromark line at the second cylinder.
The foregoing is only embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present utility model.
Claims (10)
1. a syringe type measuring instrument of microdisplacement, it is characterized in that, comprise first cylinder with the first diameter, one end and described first cylinder UNICOM and second cylinder with Second bobbin diameter that the other end opens wide, described first cylinder is built-in with first piston, the connecting rod of described first piston and the axis being parallel of described first cylinder and extend described first cylinder to the direction away from the second cylinder, the diameter of described first cylinder is the integral multiple of the diameter of described second cylinder, and described second cylinder has length indication line.
2. syringe type measuring instrument of microdisplacement as claimed in claim 1, it is characterized in that, described second cylinder is built-in with the second piston.
3. syringe type measuring instrument of microdisplacement as claimed in claim 2, is characterized in that, be filled with gas or liquid between described second piston and described first piston.
4. syringe type measuring instrument of microdisplacement as claimed in claim 2, is characterized in that, when described syringe type measuring instrument of microdisplacement is vertically placed, be filled with gas or the liquid of non-volatile between described second piston and described first piston.
5. syringe type measuring instrument of microdisplacement as claimed in claim 1, is characterized in that, when described syringe type measuring instrument of microdisplacement is vertically placed, be partly filled with liquid between described first piston and described second cylinder top.
6. the syringe type measuring instrument of microdisplacement according to any one of claim 3,4,5, is characterized in that, described liquid is water or hydraulic oil.
7. the syringe type measuring instrument of microdisplacement according to any one of claim 2-4, is characterized in that, the diameter of described first piston is 10 millimeters, and the diameter of described second piston is 1 millimeter.
8. the syringe type measuring instrument of microdisplacement according to any one of claim 2-4, is characterized in that, the span of the diameter of described first piston is between 10 millimeters to 100 millimeters, and the diameter of described second piston is 1 millimeter.
9. the syringe type measuring instrument of microdisplacement according to any one of claim 2-4, is characterized in that, described second piston-initial-position is positioned at the place at zero point of the length indication line of described second cylinder.
10. the syringe type measuring instrument of microdisplacement according to any one of claim 1-5, is characterized in that, the minimum precision of the length indication line of described second cylinder is 1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296521.1U CN204165530U (en) | 2014-06-05 | 2014-06-05 | Syringe type measuring instrument of microdisplacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296521.1U CN204165530U (en) | 2014-06-05 | 2014-06-05 | Syringe type measuring instrument of microdisplacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204165530U true CN204165530U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296521.1U Expired - Fee Related CN204165530U (en) | 2014-06-05 | 2014-06-05 | Syringe type measuring instrument of microdisplacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204165530U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444646A (en) * | 2015-11-11 | 2016-03-30 | 武汉新芯集成电路制造有限公司 | Height measuring device and method for measuring height of developing solution nozzle |
| CN106839940A (en) * | 2016-11-15 | 2017-06-13 | 中国科学院长春光学精密机械与物理研究所 | A kind of axisymmetry profiled holes diameter measuring device |
| CN108168637A (en) * | 2018-01-05 | 2018-06-15 | 杨勇 | A kind of fine liquid flow measurement device and measuring method based on displacement measurement |
| CN112723165A (en) * | 2020-12-31 | 2021-04-30 | 上海海事大学 | Measuring device for bridge crane, bridge crane and measuring method |
-
2014
- 2014-06-05 CN CN201420296521.1U patent/CN204165530U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444646A (en) * | 2015-11-11 | 2016-03-30 | 武汉新芯集成电路制造有限公司 | Height measuring device and method for measuring height of developing solution nozzle |
| CN105444646B (en) * | 2015-11-11 | 2018-02-06 | 武汉新芯集成电路制造有限公司 | A kind of device for being used to measure height and the method for measuring developer solution nozzle height |
| CN106839940A (en) * | 2016-11-15 | 2017-06-13 | 中国科学院长春光学精密机械与物理研究所 | A kind of axisymmetry profiled holes diameter measuring device |
| CN108168637A (en) * | 2018-01-05 | 2018-06-15 | 杨勇 | A kind of fine liquid flow measurement device and measuring method based on displacement measurement |
| CN112723165A (en) * | 2020-12-31 | 2021-04-30 | 上海海事大学 | Measuring device for bridge crane, bridge crane and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20210605 |