CN206269743U - A kind of device of automatic measurement plant stem girth - Google Patents
A kind of device of automatic measurement plant stem girth Download PDFInfo
- Publication number
- CN206269743U CN206269743U CN201621345106.6U CN201621345106U CN206269743U CN 206269743 U CN206269743 U CN 206269743U CN 201621345106 U CN201621345106 U CN 201621345106U CN 206269743 U CN206269743 U CN 206269743U
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- CN
- China
- Prior art keywords
- plant stem
- girth
- slide rail
- automatic measurement
- measurement
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- 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.)
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model is related to a kind of device of automatic measurement plant stem girth, and described device is provided with hand-held data recorder；The hand-held data recorder is electrically connected with conductive measurement rope；Conduction measurement rope end is connected with J-shaped conductiving slide rail；The bottom of J-shaped conductiving slide rail is provided with sense contact.The utility model is by the girth that measures the resistance value of conductive cords resistance wire corresponding part so as to calculate plant stem；Required data can be directly obtained and automatic record storage, and operating method is simple, and the accuracy of data, while measurement error can be reduced, is improved in time and labour saving.
Description
Technical field
The utility model belongs to the measuring apparatus field to irregularly shaped object girth, more particularly to a kind of automatic measurement plant
The device of cane girth.
Background technology
At present, in agronomy, the correlative study of forestry, it is often necessary to which the girth to plant stem is measured, but plant
The cane of thing is usually because too thin inconvenience direct measurement, is often first maintained on cane, then surveyed with ruler with a cord
The length of cord is measured, measurement process very complicated, time-consuming, error is big.
Measurement simultaneously needs manual record, error as a result also easily occurs.So in the urgent need to one kind can direct measurement,
Read, record the device of plant stem girth.
The content of the invention
The utility model be solve at present to the circumferential measurements process very complicated of plant stem, time-consuming, error is big；And
And the problem that the girth of plant stem can not directly be measured, recorded and stored and a kind of automatic measurement plant stem is provided
The device of girth.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
A kind of device of automatic measurement plant stem girth, the device of the automatic measurement plant stem girth is provided with hand
Hold formula data logger；The hand-held data recorder is electrically connected with conductive measurement rope；Conduction measurement rope end is connected with J
Shape conductiving slide rail；The bottom of J-shaped conductiving slide rail is provided with sense contact.
Further, conductive measurement rope is divided into two-layer；Internal layer is the plain conductor of copper or aluminium, and outer layer is the big resistance of resistance value
Silk, centre is isolated by insulating materials.
Further, the end long of the J-shaped conductiving slide rail is covered with plastic cap, and the sense contact is connected with plain conductor.
Further, the hand-held data recorder built-in lithium battery, external micro USB interfaces.Electricity can be directly connected to
Brain charges and data transfer；Button equipped with various functions such as display screen and " confirmation " " menu " " power supply " on recorder.
The utility model has the advantages and positive effects that：The utility model is by measuring conductive cords resistance wire correspondence portion
Point resistance value so as to calculate the girth of plant stem.Required data can be directly obtained and automatic record storage, operation side
Method is simple, time and labour saving, while measurement error can be reduced, improves the accuracy of data.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of the automatic measurement plant stem girth that the utility model embodiment is provided.
In figure：1st, hand-held data recorder；2nd, conductive measurement rope；3rd, J-shaped conductiving slide rail；4th, plastic cap；5th, sense and touch
Point.
Specific embodiment
For the content of the invention of the present utility model, feature and effect can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows.
Structure of the present utility model is explained in detail with reference to figure.
As shown in figure 1, the device of the automatic measurement plant stem girth that the utility model embodiment is provided, the automatic survey
The device for measuring plant stem girth is provided with hand-held data recorder 1；The hand-held data recorder is electrically connected with leads
Electrical measurement rope 2；Conduction measurement rope end is connected with J-shaped conductiving slide rail 3；The bottom of J-shaped conductiving slide rail is provided with sense contact 5.
Further, conductive measurement rope is divided into two-layer；Internal layer is the plain conductor of copper or aluminium, and outer layer is the big resistance of resistance value
Silk, centre is isolated by insulating materials.
Further, the end long of the J-shaped conductiving slide rail is covered with plastic cap 4, and the sense contact is connected with plain conductor.
Further, the hand-held data recorder built-in lithium battery, external micro USB interfaces.Electricity can be directly connected to
Brain charges and data transfer；Button equipped with various functions such as display screen and " confirmation " " menu " " power supply " on recorder.
Structure of the present utility model is further described with reference to operation principle.
The constant-current source output drive electric current of data logger of the present utility model, the inner lead of measured rope is to unofficial biography
It is defeated, to J-shaped conductiving slide rail at be connected to measurement rope outer layer, and return to data logger formed closed-loop path.Inner conductor
Resistance value is small, by the metals such as copper, aluminium are made；Outer layer resistance wire resistance value is big, is made up of alloy material；One layer is covered in the middle of measurement rope
Megohmite insulant separates inside and outside conductive materials.
Measurement object when, measurement rope after plant stem formed ring-type and with the sense contact of J-shaped conductiving slide rail bottom
It is in contact, forms new closed-loop path.Due on the premise of the resistivity and cross-sectional area of resistance wire are constant, resistance value and electricity
The length for hindering silk is directly proportional.Such as formula：
Resistance wire length (L)=resistance constant × resistance
Resistance constant=resistance wire cross-sectional area/resistance wire resistivity
So the length of resistance wire can be calculated by the size of resistance value.In the case where measurement rope total length is constant,
The resistance value surveyed is the length of non-twining plant cane partial ohmic silk, and plant stem can be immediately arrived at finally by calculating
Girth.
Plant stem circumferential measurements method：Measurement rope is tied directly on object under test cane, is enclosed by J-shaped conductiving slide rail
Circlewise, the current strength that data logger passes through to feed back to calculates the girth of testee, while carrying out data note automatically
Address book stored.
Resistance material of the resistance of resistance wire that the utility model is used for every meter of resistance value more than 5 ohm, is easier
Reflect the change of conductor length.
The present apparatus is not limited only to measure plant stem, while the week of the girth of measurable fruit and other irregularly shaped objects
It is long.
The above is only, to preferred embodiment of the present utility model, not to make any formal to the utility model
Limitation, it is every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, belongs in the range of technical solutions of the utility model.
Claims (4)
1. a kind of device of automatic measurement plant stem girth, it is characterised in that the dress of the automatic measurement plant stem girth
Install and be equipped with hand-held data recorder；The hand-held data recorder is electrically connected with conductive measurement rope；Conduction measurement rope
End is connected with conductiving slide rail；The bottom of conductiving slide rail is provided with sense contact.
2. the device of automatic measurement plant stem girth as claimed in claim 1, it is characterised in that conduction measurement rope is divided into two
Layer；Internal layer is the plain conductor of copper or aluminium, and outer layer is the big resistance wire of resistance value, and centre is isolated by insulating materials.
3. the device of automatic measurement plant stem girth as claimed in claim 1, it is characterised in that conductiving slide rail described in J-shaped
End long be covered with plastic cap, the sense contact is connected with plain conductor.
4. the device of automatic measurement plant stem girth as claimed in claim 1, it is characterised in that the hand-held data note
Record instrument built-in lithium battery, external micro USB interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621345106.6U CN206269743U (en) | 2016-12-08 | 2016-12-08 | A kind of device of automatic measurement plant stem girth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621345106.6U CN206269743U (en) | 2016-12-08 | 2016-12-08 | A kind of device of automatic measurement plant stem girth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206269743U true CN206269743U (en) | 2017-06-20 |
Family
ID=59043779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621345106.6U Expired - Fee Related CN206269743U (en) | 2016-12-08 | 2016-12-08 | A kind of device of automatic measurement plant stem girth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206269743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278962A (en) * | 2018-01-21 | 2018-07-13 | 中南林业科技大学 | A kind of ring type standing tree dimensional measurement terminal for continuously measuring |
-
2016
- 2016-12-08 CN CN201621345106.6U patent/CN206269743U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278962A (en) * | 2018-01-21 | 2018-07-13 | 中南林业科技大学 | A kind of ring type standing tree dimensional measurement terminal for continuously measuring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170620 Termination date: 20171208 |