CN109724561A - A kind of river width measuring appliance - Google Patents
A kind of river width measuring appliance Download PDFInfo
- Publication number
- CN109724561A CN109724561A CN201711029119.1A CN201711029119A CN109724561A CN 109724561 A CN109724561 A CN 109724561A CN 201711029119 A CN201711029119 A CN 201711029119A CN 109724561 A CN109724561 A CN 109724561A
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- China
- Prior art keywords
- river
- point
- protractor
- laser pen
- measuring instrument
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- Length Measuring Devices By Optical Means (AREA)
Abstract
A kind of river width measuring appliance, including river, riverbank point, opposite bank point, riverbank point avris is equipped with measuring instrument plate, the fixed left protractor in the measuring instrument plate left side, left protractor bottom edge center is equipped with left rotary shaft, and left laser pen, fixed right protractor on the right of measuring instrument plate are fixed in left rotary shaft, right protractor bottom edge center is equipped with right spindle, and right laser pen is fixed on right spindle.Testee is determined first, that is, chooses a point on river opposite bank, measuring instrument plate is placed on river bank, opens the power supply of right laser pen, adjusts right spindle, so that red laser point is directed at measured object, is read the degree that degree of a face on right protractor is angle a1.It is then turned on the power supply of left laser pen, adjusts left rotary shaft, so that red laser point is directed at measured object, reads the degree that degree of a face on left protractor is angle a2.Then calculation formula h(wide is pressed)=tg a1 × tg a2/tg a1--tg a2 (rice).The data obtained are exactly the width in surveyed river.
Description
Technical field
The present invention relates to a kind of measuring instrument, relate in particular to a kind of can quickly measure river with laser pen and protractor
A kind of river width measuring appliance of width.
Background technique
It in the actual life in mountain area and rural area, needs to measure river width, but river is very wide, has no idea with normal
Stringing method measurement is advised, measuring instrument needs is such as borrowed and comes to town and borrows, and mathematical computations again after being proofreaded, it is very loaded down with trivial details,
Workload is very big.Eye estimate is such as used, then error is very big.
Summary of the invention
The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a kind of can quickly be surveyed with laser pen and protractor
A kind of river width measuring appliance of river width out.
The technical solution adopted by the present invention to solve the technical problems is: a kind of river width measuring appliance, including river, river
Bank point, opposite bank point, riverbank point avris are equipped with measuring instrument plate, the fixed left protractor in the measuring instrument plate left side, left protractor bottom edge center
It is equipped with left rotary shaft, left laser pen is fixed in left rotary shaft, fixed right protractor on the right of measuring instrument plate, right protractor bottom edge center is equipped with
Right spindle fixes right laser pen on right spindle.
The invention has the advantages that determining testee first, that is, a point on river opposite bank is chosen, measuring instrument plate is put
It sets on river bank, opens the power supply of right laser pen, adjust right spindle, so that red laser point is directed at measured object, in measured object
On when can see red laser point, read degree of a face on right protractor, this degree is exactly the degree of angle a1.It is then turned on left laser
The power supply of pen adjusts left rotary shaft, and red laser point is made to be directed at measured object, when that can see red laser point on measured object, reads
Degree of a face on left protractor, this degree are exactly the degree of angle a2.Then calculation formula h(wide is pressed)=tg a1 × tg a2/tg
A1-tg a2 (rice).The data unit obtained is rice, is exactly the width in surveyed river.Such measurement method is simple, quickly,
Measurement cost is very low, and accuracy is also higher.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structure chart of the embodiment of the present invention one.
In figure: 1. measuring instrument plates, 2. right spindles, 3. riverbank points, 4. rivers are wide, 5. opposite bank points, 6. left protractors, and 7. is right sharp
Light pen, 8. left laser pens, 9. left rotary shafts, 10. right protractors, 11. rivers.
Specific embodiment
In the embodiment shown in fig. 1, it is provided with measuring instrument plate (1), right spindle (2), riverbank point (3), river is wide (4), right
Bank point (5), left protractor (6), right laser pen (7), left laser pen (8), left rotary shaft (9), right protractor (10), river (11).
Implement a kind of river width measuring appliance of the invention, including river (11), riverbank point (3), opposite bank point (5), riverbank
Point (3) avris is equipped with measuring instrument plate (1), and the fixed left protractor (6) in measuring instrument plate (1) left side, left protractor (6) bottom edge center is set
Have left rotary shaft (9), is fixed in left rotary shaft (9) left laser pen (8), fixed right protractor (10), right angulation on the right of measuring instrument plate (1)
Device (10) bottom edge center is equipped with right spindle (2), and right laser pen (7) are fixed on right spindle (2).
Implement a kind of river width measuring appliance of the invention, the linear distance between riverbank point (3) and opposite bank point (5) is river
Road width (4).The distance between right spindle (2) and left rotary shaft (9) are 1 meter.Right laser pen (7) and left laser pen (8) can use energy
Issue the laser pen of red laser point.
Implement a kind of river width measuring appliance of the invention, it is first determined testee chooses a point on river opposite bank,
Measuring instrument plate is placed on river bank, the power supply of right laser pen is opened, adjusts right spindle, keeps the alignment of red laser point tested
Object reads degree of a face on right protractor when that can see red laser point on measured object, this degree is exactly the degree of angle a1.
It is then turned on the power supply of left laser pen, adjusts left rotary shaft, red laser point is made to be directed at measured object, can be seen on measured object red sharp
When luminous point, degree of a face on left protractor is read, this degree is exactly the degree of angle a2.Then calculation formula h(wide is pressed)=tg a1
× tg a2/tg a1-tg a2 (rice).The data unit obtained is rice, is exactly the width in surveyed river.Such measurement method
Simply, quickly, measurement cost is very low, and accuracy is also higher.
Implement a kind of river width measuring appliance of the invention, can be used to measure river, wheatland, pasture etc., due to laser
Light beam concentrate and penetrate far, if the luminous point on measured object is invisible to the naked eye, can be by telescope from the point of view of.One can also be used
Calculator programmed tg a1 × tg a2/tg a1-tg a2, number corresponding to the different degrees tg a1 and tg a2
It is investigated that being write on after table on measuring instrument plate 1, in this way in measurement, reads degree and just found corresponding data, data are inputted and are counted
It calculates device and has just obtained river width.
The implementation present invention is easily, very practical, effect is fine.
Claims (4)
1. a kind of river width measuring appliance, including river (11), riverbank point (3), opposite bank point (5), which is characterized in that in the river
Bank point (3) avris is equipped with measuring instrument plate (1), the fixed left protractor (6) in measuring instrument plate (1) left side, left protractor (6) bottom edge center
It is equipped with left rotary shaft (9), is fixed in left rotary shaft (9) left laser pen (8), fixed right protractor (10), right amount on the right of measuring instrument plate (1)
Angle device (10) bottom edge center is equipped with right spindle (2), and right laser pen (7) are fixed on right spindle (2).
2. a kind of river width measuring appliance according to claim 1, feature is in the riverbank point (3) and opposite bank point (5)
Between linear distance be river it is wide (4).
3. a kind of river width measuring appliance according to claim 1, feature is in the right spindle (2) and left rotary shaft (9)
The distance between be 1 meter.
4. a kind of river width measuring appliance according to claim 1, feature is in the right laser pen (7) and left laser pen
(8) laser pen that can issue red laser point can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029119.1A CN109724561A (en) | 2017-10-29 | 2017-10-29 | A kind of river width measuring appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029119.1A CN109724561A (en) | 2017-10-29 | 2017-10-29 | A kind of river width measuring appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109724561A true CN109724561A (en) | 2019-05-07 |
Family
ID=66291473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711029119.1A Pending CN109724561A (en) | 2017-10-29 | 2017-10-29 | A kind of river width measuring appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109724561A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111428324A (en) * | 2020-04-23 | 2020-07-17 | 上海普适导航科技股份有限公司 | Irregular river channel segmentation method and system |
-
2017
- 2017-10-29 CN CN201711029119.1A patent/CN109724561A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111428324A (en) * | 2020-04-23 | 2020-07-17 | 上海普适导航科技股份有限公司 | Irregular river channel segmentation method and system |
| CN111428324B (en) * | 2020-04-23 | 2023-09-26 | 上海普适导航科技股份有限公司 | Irregular river channel segmentation method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190507 |