CN102944280A - Device for reducing random error of measuring cylinder by laser beam ring - Google Patents
Device for reducing random error of measuring cylinder by laser beam ring Download PDFInfo
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- CN102944280A CN102944280A CN2012104094865A CN201210409486A CN102944280A CN 102944280 A CN102944280 A CN 102944280A CN 2012104094865 A CN2012104094865 A CN 2012104094865A CN 201210409486 A CN201210409486 A CN 201210409486A CN 102944280 A CN102944280 A CN 102944280A
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- graduated cylinder
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Abstract
The invention discloses a device for reducing the random error of a measuring cylinder by a laser beam ring. The device comprises a lifting guide rod, a lifting device, a laser transmitter and a bearing platform, wherein the lifting device is mounted on the lifting guide rod; the laser transmitter is carried on the lifting device and mounted on one side near the measuring cylinder; ascending and descending of the laser transmitter are controlled through an electric control press button; and one end of the bearing platform is fixedly connected with the lower end of the lifting guide rod. According to a method for reducing the random error of the measuring cylinder by the laser beam and the characteristic of high parallelism of the laser beam, the random error of the measuring cylinder caused by looking down and looking up of human eyes is effectively eliminated, so that the integrated random error of the reading number of the measuring cylinder is reduced, a convenient, quick and effective method is provided to improve the measuring precision of the measuring cylinder, the influence of the sight line and the concave-convex liquid level on the reading number is fundamentally eliminated, and accuracy and convenience are provided for experiments and production.
Description
Technical field
The present invention relates to the level gauging technical field, specifically a kind of device that reduces the graduated cylinder stochastic error.
Background technology
Graduated cylinder is a kind of glass apparatus of measuring liquid, and its measuring error comprises systematic error and stochastic error.It is the central point of seeing the water surface when seeing the volume of graduated cylinder, sight line is oblique lower when overlooking, so the higher actual solution value of measuring of the data that the intersection point of sight line and barrel is read on the water surface is on the low side, look up be sight line obliquely, so the data that the intersection point of sight line and barrel is read in the underwater are on the low side, the actual solution value of measuring is higher.Because the precision that human eye directly reads is not high, has caused stochastic error, thereby cause the precision of graduated cylinder measurement liquid volume not high.
Summary of the invention
The object of the invention is to: for the problem of above-mentioned existence, provide a kind of device of laser beam ring decrease cylinder stochastic error.Utilize the directional lighting of laser rays and the characteristics of the high depth of parallelism, the tangent stochastic error of measurement cylinder reading that makes of adjusting laser beam height and graduated cylinder indent meniscus reduces, and then improves the precision that graduated cylinder is measured liquid volume.
The technical solution used in the present invention is:
A kind of device of laser beam ring decrease cylinder stochastic error, comprise lifting guide pillar, jacking gear, generating laser, plummer and dark curtain plate, jacking gear is installed on the lifting guide pillar, generating laser carries on jacking gear, be installed on the one side near measuring cup, by the lifting of automatically controlled button control generating laser, dark curtain plate is arranged at the one side relative with generating laser, be used for absorbing the laser beam of passing measuring cup, one end of plummer and the lower end of lifting guide pillar are fixedly linked, and the other end links to each other with the lower end of dark curtain plate.
Be provided with graduated cylinder on the described plummer and place concave station, graduated cylinder is placed concave station and is made of the circular concave station of multilayer, the circular concave station radius of each layer is corresponding with each model graduated cylinder, is used for fixedly graduated cylinder position, and the projection of the laser beam that described laser beam emitting device is launched is through the center of circle of circular concave station.
Described lifting guide pillar is tightened by the holding screw of side and is fixed on the plummer.
The material that graduated cylinder is placed concave station is clear glass.
Described automatically controlled button has beginning/stop button, slow-motion button, moves back button, fast forward button, five buttons of fast backward button slowly, by power lead and the work of plug plugged.
Described fast forward button, fast backward button control rate are 5mm/s, and the slow-motion button, to move back button control speed slowly be 0.5mm/s.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
The method that a kind of laser beam of the present invention reduces the graduated cylinder stochastic error is utilized the characteristics of the high depth of parallelism of laser beam, effectively eliminated by human eye and overlooked, looked up the graduated cylinder stochastic error that causes, thereby reduced the whole stochastic error of measurement cylinder reading, for the precision of measuring that improves graduated cylinder provides convenient effective methods, sight line and concavo-convex liquid level have fundamentally been eliminated for the impact of reading, for experiment, production provide accurate and convenient, it is a kind of graduated cylinder measuring method of optimization.Equipment simple to operation, it is quick and easy for installation that stationary installation adopts simple screw thread fixedly to make, and device is applicable to the reading of graduated cylinder of all size, and descending operation makes whole operation and reading process quick and precisely by Electric Machine Control.For preventing that laser beam is provided with at last a black curtain plate on the impact of surrounding environment at device and absorbs the laser of singing graduated cylinder.
Description of drawings
Fig. 1 is the front elevation that laser beam of the present invention reduces the device of graduated cylinder stochastic error;
Fig. 2 is the vertical view that laser beam of the present invention reduces the device of graduated cylinder stochastic error;
Fig. 3 be laser beam of the present invention reduce the graduated cylinder stochastic error the principle schematic that derives of method.
Among the figure: 1, lifting guide pillar; 2, jacking gear; 3, generating laser; 4, holding screw; 5, plummer; 6, graduated cylinder; 7, graduated cylinder is placed concave station; 8, dark curtain plate; 9, fast forward button; 10, slow-motion button; 11, beginning/stop button; 12, move back slowly button; 13, fast backward button; 14, power lead; 15, plug.
Embodiment
Specifically introducing present embodiment below in conjunction with accompanying drawing elaborates: present embodiment is implemented under take technical solution of the present invention as prerequisite, has provided detailed embodiment and process, but protection scope of the present invention is not limited to following embodiment.
In conjunction with Fig. 1, Fig. 2, Fig. 3, the method that laser beam of the present invention reduces the graduated cylinder stochastic error comprises jacking gear 2 and generating laser 3.Generating laser 3 is placed on jacking gear 2 in the face of the middle part of plummer, and jacking gear carries generating laser along lifting guide pillar 3 liftings, can be from the plummer plane along lifting guide pillar 3 rises to lifting guide pillar 3 tops.Plug 15 connects the 220V power supply and passes through power lead 14 to power devices, circuit is controlled jacking gear 2, generating laser 3, fast forward button 9, slow-motion button 10, beginning/stop button 11, is moved back button 12, fast backward button 13 slowly, and all circuit control panels are integrated in plummer 5 inside.
Described graduated cylinder is placed the design of concave station 7 different radii different platform differing heights, and the bottom surface radius of its radius and each specification graduated cylinder is identical, graduated cylinder can be fixed on the desired position, and the projection of laser beam is through the center of circle of concave station circle.Laser rays passes the graduated cylinder 6 arrival black curtain plates 8 that place and is all absorbed.
Whole device is fixed on the smooth desktop by the holding screw that is positioned at plummer 5 sides, and device is normally moved.
The speed that fast forward button 9 and fast backward button 13 are pressed rear jacking gear 2 is 5mm/s, slow-motion button 10 and move back slowly button 12 to press the speed of rear jacking gear 2 be 0.5mm/s, the opening and closing of the whole equipment of beginning/stop button 11 controls.
The implementation step of described device is:
(1) with the device fixed screw device is fixed on the smooth desktop, plug is connected the 220V power supply, make device be in "on" position.
(2) graduated cylinder to be measured is seated in the concave station place of respective radius, make lay smooth, simultaneously with the cylinder scale line towards the generating laser mouth.
(3) press beginning/conclusion button, generating laser begins emission, by F.F., fast backward button the laser beam height is adjusted to concave, convex liquid level Position Approximate, by slow-motion, move back button slowly and be adjusted to tangent with concavo-convex liquid level laser beam and a bit.
(4) volume of reading laser beam point of irradiation on the graduated cylinder wall, this reading is the liquid volume that has reduced stochastic error, the record reading.
(5) press beginning/X button, generating laser stops emission, pulls up power supply and takes measuring cup away, and equipment is carried out regular maintenance.The key of this equipment of use is to keep the levelness of generating laser, regularly carry out debugging maintenance.
The method that a kind of laser beam of the present invention reduces the graduated cylinder stochastic error is: laser rays and concavo-convex liquid level are tangent accurately by the depth of parallelism, are read by two one lines and beat at the corresponding scale of barrel laser spots.Graduated cylinder is the common graduated cylinder of standard, guarantees during placement that laser rays passes the place that graduated cylinder has scale mark; Regularly levelness and the verticality of device each several part are carried out adjustment, to guarantee the levelness of laser beam.
From above-mentioned embodiment as seen, the method that a kind of laser beam of the present invention reduces the graduated cylinder stochastic error is utilized the characteristics of the high depth of parallelism of laser beam, effectively eliminated by human eye and overlooked, looked up the graduated cylinder stochastic error that causes, thereby reduced the whole stochastic error of measurement cylinder reading, for the precision of measuring that improves graduated cylinder provides convenient effective methods, sight line and concavo-convex liquid level have fundamentally been eliminated for the impact of reading, for experiment, production provide accurate and convenient, it is a kind of graduated cylinder measuring method of optimization.
Claims (7)
1. the device of a laser beam ring decrease cylinder stochastic error, comprise lifting guide pillar (1), jacking gear (2), generating laser (3) and plummer (5), jacking gear (2) is installed on the lifting guide pillar (1), generating laser (3) carries on jacking gear (2), be installed on the one side near measuring cup, by automatically controlled button control generating laser (3) lifting, the lower end of an end of plummer (5) and lifting guide pillar (1) is fixedly linked.
2. the device of a kind of laser beam ring decrease cylinder stochastic error according to claim 1, it is characterized in that: described device also comprises dark curtain plate (8), dark curtain plate (8) is arranged at the one side relative with generating laser (3), be used for absorbing the laser beam of passing measuring cup, the other end of described plummer (5) links to each other with the lower end of dark curtain plate (8).
3. the device of a kind of laser beam ring decrease cylinder stochastic error according to claim 1 and 2, it is characterized in that: be provided with graduated cylinder on the described plummer (5) and place concave station (7), graduated cylinder is placed concave station (7) and is made of the circular concave station of multilayer, the circular concave station radius of each layer is corresponding with each model graduated cylinder, be used for fixedly graduated cylinder position, the projection of the laser beam that described laser beam emitting device is launched is through the center of circle of circular concave station.
4. the device of a kind of laser beam ring decrease cylinder stochastic error according to claim 1 and 2, it is characterized in that: described lifting guide pillar (1) is tightened by the holding screw (4) of side and is fixed on the plummer (5).
5. the device of a kind of laser beam ring decrease cylinder stochastic error according to claim 1 and 2 is characterized in that: the material that graduated cylinder is placed concave station (7) is clear glass.
6. the device of a kind of laser beam ring decrease cylinder stochastic error according to claim 1, it is characterized in that: described automatically controlled button has beginning/stop button (11), slow-motion button (10), moves back button (12), fast forward button (9), (13) five buttons of fast backward button slowly, by power lead (14) and plug (15) plugged work.
7. the device of a kind of laser beam ring decrease cylinder stochastic error according to claim 6, it is characterized in that: described fast forward button (9), fast backward button (13) control rate are 5mm/s, and slow-motion button (10), to move back button (12) control rate slowly be 0.5mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210409486.5A CN102944280B (en) | 2012-10-24 | 2012-10-24 | Device for reducing random error of measuring cylinder by laser beam ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210409486.5A CN102944280B (en) | 2012-10-24 | 2012-10-24 | Device for reducing random error of measuring cylinder by laser beam ring |
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| Publication Number | Publication Date |
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| CN102944280A true CN102944280A (en) | 2013-02-27 |
| CN102944280B CN102944280B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210409486.5A Active CN102944280B (en) | 2012-10-24 | 2012-10-24 | Device for reducing random error of measuring cylinder by laser beam ring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367308A (en) * | 2017-06-26 | 2017-11-21 | 上海应用技术大学 | Graduated cylinder measuring cup, which is bowed, reads device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62206412A (en) * | 1986-03-06 | 1987-09-10 | Hazama Gumi Ltd | Automatic level measuring system |
| DE29703593U1 (en) * | 1997-02-28 | 1997-05-07 | Ullrich Stabila Messgeraete | Measuring and aiming device for laser leveling devices |
| JP2004212251A (en) * | 2003-01-06 | 2004-07-29 | Sekisui House Ltd | Method and ruler for measuring level of ceiling |
| CN1645096A (en) * | 2005-01-18 | 2005-07-27 | 武汉理工大学 | Tester and testing method for high-sensitivity cement thick liquid flowability |
| JP2005257599A (en) * | 2004-03-15 | 2005-09-22 | Tjm Design Corp | Attachment for positioning light receiver and photodetector |
| CN101082485A (en) * | 2007-06-29 | 2007-12-05 | 南京中网通信有限公司 | Photoelectric star-seeking auxiliary device and method |
| CN201434833Y (en) * | 2006-02-24 | 2010-03-31 | 胡春林 | Substance detector |
| CN202304927U (en) * | 2011-09-23 | 2012-07-04 | 无锡艾科瑞思产品设计与研究有限公司 | Reading assist device for measuring cylinder |
-
2012
- 2012-10-24 CN CN201210409486.5A patent/CN102944280B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62206412A (en) * | 1986-03-06 | 1987-09-10 | Hazama Gumi Ltd | Automatic level measuring system |
| DE29703593U1 (en) * | 1997-02-28 | 1997-05-07 | Ullrich Stabila Messgeraete | Measuring and aiming device for laser leveling devices |
| JP2004212251A (en) * | 2003-01-06 | 2004-07-29 | Sekisui House Ltd | Method and ruler for measuring level of ceiling |
| JP2005257599A (en) * | 2004-03-15 | 2005-09-22 | Tjm Design Corp | Attachment for positioning light receiver and photodetector |
| CN1645096A (en) * | 2005-01-18 | 2005-07-27 | 武汉理工大学 | Tester and testing method for high-sensitivity cement thick liquid flowability |
| CN201434833Y (en) * | 2006-02-24 | 2010-03-31 | 胡春林 | Substance detector |
| CN101082485A (en) * | 2007-06-29 | 2007-12-05 | 南京中网通信有限公司 | Photoelectric star-seeking auxiliary device and method |
| CN202304927U (en) * | 2011-09-23 | 2012-07-04 | 无锡艾科瑞思产品设计与研究有限公司 | Reading assist device for measuring cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367308A (en) * | 2017-06-26 | 2017-11-21 | 上海应用技术大学 | Graduated cylinder measuring cup, which is bowed, reads device |
| CN107367308B (en) * | 2017-06-26 | 2019-07-23 | 上海应用技术大学 | Graduated cylinder measuring cup, which is bowed, reads device |
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| Publication number | Publication date |
|---|---|
| CN102944280B (en) | 2015-02-25 |
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Effective date of registration: 20201123 Address after: 277300 Yuejin Middle Road, Yicheng Industrial Park, Zaozhuang City, Shandong Province Patentee after: Shandong Yikai Electrical Equipment Co., Ltd Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |
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