CN104374326A - Electronic measuring scale - Google Patents
Electronic measuring scale Download PDFInfo
- Publication number
- CN104374326A CN104374326A CN201410664802.2A CN201410664802A CN104374326A CN 104374326 A CN104374326 A CN 104374326A CN 201410664802 A CN201410664802 A CN 201410664802A CN 104374326 A CN104374326 A CN 104374326A
- Authority
- CN
- China
- Prior art keywords
- dip stick
- stick body
- centimetres
- measuring scale
- level meter
- 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.)
- Pending
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
An electronic measuring scale comprises a measuring scale body and gradienters on the two sides of the body. The electronic measuring scale is characterized in that the gradienters are triangular; infrared measuring equipment is arranged in the measuring scale body; an infrared emission head of the infrared measuring equipment is arranged at the middle position of one side of a shell of the measuring scale body; and three liquid crystal displayers are arranged on the surface of the shell of the measuring scale body to display distance, diameter and perimeter respectively.
Description
Technical field
The present invention relates to a kind of surveying instrument, particularly measure a kind of electronic surveying ruler of diameter.
Background technology
Current diameter of a circle normally cannot directly be measured when not knowing round dot, and when circle is too large, the circumferential measurements of circle is also very inconvenient, therefore provides a kind of surveying instrument can measuring diameter and girth when not knowing round dot easily just to have certain market outlook.
Summary of the invention
Object of the present invention is exactly to solve the problem mentioned in above-mentioned background technology, provides a kind of electronic surveying ruler can measuring diameter and girth when not knowing round dot easily.
A kind of electronic surveying ruler, comprise dip stick body and the level meter being arranged on body both sides, it is characterized by: described level meter external form is 3 angle-style, described dip stick body interior is provided with infrared rays survey equipment, its infrared emitting head is arranged on dip stick body housing centre position on one side, described dip stick body housing surface also has 3 liquid crystal display, display distance, diameter, girth respectively.
Further, long 16 centimetres of described dip stick body, wide 3 centimetres, thick 1.5 centimetres, described 3 angle-style level meter bottom side length 2 centimetres.
Further, there is the switch of control 3 liquid crystal display on described dip stick body housing surface.
During use, by dip stick body by rotund one section of circumference, the corner bracket on described 3 angle-style level meter bases is circumferentially, and maintenance level opened by level meter, and infrared rays survey device measuring goes out the air line distance between dip stick body and circumference.By calculating this diameter of a circle and girth.
The invention has the beneficial effects as follows: just can measure diameter and girth easily when not knowing round dot.The understanding Pythagorean theorem that student can be made more deep as instruments used for education, can also be used for engineering survey aspect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the present invention is described in further detail.
Fig. 1 is structural drawing of the present invention.
Fig. 2 is using state schematic diagram of the present invention.
Fig. 3 is schematic diagram calculation of the present invention.
Embodiment
With reference to figure 1, a kind of electronic surveying ruler, comprise long 16 centimetres, wide 3 centimetres, the dip stick body 1 of thick 1.5 centimetres and be arranged on the level meter 4 of body 1 both sides bottom side length 2 centimetres, described level meter external form is 3 angle-style, and described dip stick body 1 case surface has the switch of control 3 liquid crystal display (not shown in FIG.).Described dip stick body 1 inside is provided with infrared rays survey equipment, its infrared emitting head 2 is arranged on dip stick body 1 shell centre position on one side, described dip stick body 1 case surface also has 3 liquid crystal display 3,5,6, respectively display distance, diameter, girth.
With reference to figure 2, during use, by dip stick originally, 1 by rotund one section of circumference 7, and the corner bracket on described 3 angle-style level meter 4 bases is on circumference 7, and maintenance level opened by level meter 4, and infrared rays survey device measuring goes out the air line distance 8 between dip stick body 1 and circle 7.By calculating this diameter of a circle and girth.
With reference to figure 3, concrete computation process is, according to Pythagorean theorem C
2=(C-A)
2+ B
2, derivation draws: C=(A
2+ B
2)/2A, obtains C value, naturally knows girth.Wherein the half of the value of A to be the value of air line distance 8, B between dip stick body 1 and circle 7 be total length after dip stick body 1 adds level meter 4, is 10 centimetres herein.
The invention has the beneficial effects as follows: just can measure diameter C and girth easily when not knowing round dot.The understanding Pythagorean theorem that student can be made more deep as instruments used for education, can also be used for engineering survey aspect.
Claims (3)
1. an electronic surveying ruler, comprise dip stick body and the level meter being arranged on body both sides, it is characterized by: described level meter external form is 3 angle-style, described dip stick body interior is provided with infrared rays survey equipment, its infrared emitting head is arranged on dip stick body housing centre position on one side, described dip stick body housing surface also has 3 liquid crystal display, display distance, diameter, girth respectively.
2. an electronic surveying ruler as claimed in claim 1, is characterized by: long 16 centimetres of described dip stick body, wide 3 centimetres, thick 1.5 centimetres, described 3 angle-style level meter bottom side length 2 centimetres.
3. an electronic surveying ruler as claimed in claim 1, is characterized by: there is the switch of control 3 liquid crystal display on described dip stick body housing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664802.2A CN104374326A (en) | 2014-11-19 | 2014-11-19 | Electronic measuring scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664802.2A CN104374326A (en) | 2014-11-19 | 2014-11-19 | Electronic measuring scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104374326A true CN104374326A (en) | 2015-02-25 |
Family
ID=52553382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410664802.2A Pending CN104374326A (en) | 2014-11-19 | 2014-11-19 | Electronic measuring scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104374326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880174A (en) * | 2015-06-04 | 2015-09-02 | 绍兴文理学院 | Laser digital display type level testing instrument |
-
2014
- 2014-11-19 CN CN201410664802.2A patent/CN104374326A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880174A (en) * | 2015-06-04 | 2015-09-02 | 绍兴文理学院 | Laser digital display type level testing instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
|
| WD01 | Invention patent application deemed withdrawn after publication |