CN108281230A - One kind being tethered at unmanned plane private cable - Google Patents
One kind being tethered at unmanned plane private cable Download PDFInfo
- Publication number
- CN108281230A CN108281230A CN201810045803.7A CN201810045803A CN108281230A CN 108281230 A CN108281230 A CN 108281230A CN 201810045803 A CN201810045803 A CN 201810045803A CN 108281230 A CN108281230 A CN 108281230A
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- Prior art keywords
- parts
- cable
- cable core
- layer
- optical fiber
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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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/187—Sheaths comprising extruded non-metallic layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention discloses one kind and being tethered at unmanned plane private cable; the cable constituted including cable core and optical fiber; it is enclosed with insulating layer and liner layer successively on the outside of the cable core; outer fiber has shielded layer; also there is grounding conductor layer in cable; cable core and optical fiber are inside grounding conductor layer; cable core and optical fiber have interior filled layer between grounding conductor layer; it is put into different size of multiple oval beaers between cable core and optical fiber, is that outer filled layer and nanometer protect crust on the outside of grounding conductor layer.The cable core has 23.The nanometer protection crust uses bend resistance anticorrosive nano material.
Description
Technical field
The present invention relates to UAV Communication apparatus fields more particularly to one kind being tethered at unmanned plane private cable.
Background technology
It is by unmanned plane and to be tethered at the UAV system that comprehensive cable knot realizes altogether to be tethered at unmanned plane, according to applied field
The difference of scape is tethered at UAV system and is divided into fixed ground, vehicle-mounted removable and carrier-borne movable type, and three kinds of working methods are fine
The demand for meeting various working environments.Heaving pile is also devised with optical fiber and is carried with transmission platform other than transmitting electrical source of power
The photosignal of electronic equipment, therefore heaving pile is a kind of power/signal composite cable.Especially led in agriculture quality guarantee unmanned plane
Domain, the corrosion resistance for pesticide are also a big newly energy factor,
The current unmanned electric cable that is tethered at needs the resistance to fold resistance of high-performance, due to being tethered at the property of unmanned plane, for its electricity
The corrosion resistance of cable and resistance to fold resistance are more demanding.
Invention content
The purpose of the present invention is to provide one kind being tethered at unmanned plane private cable, to solve the above technical problems, to realize
The above-mentioned purpose present invention uses following technical scheme：
One kind being tethered at unmanned plane private cable, which is characterized in that the cable including cable core and optical fiber composition,
Insulating layer and liner layer are enclosed on the outside of the cable core successively, outer fiber has shielded layer,
Also there is grounding conductor layer, inside grounding conductor layer, cable core and optical fiber are connecing for cable core and optical fiber in cable
There is interior filled layer between earthed conductor layer, different size of multiple oval beaers are put between cable core and optical fiber,
It is that outer filled layer and nanometer protect crust on the outside of grounding conductor layer.
The cable core has 2-3 roots.
The nanometer protection crust uses bend resistance anticorrosive nano material.
One kind that the present invention designs, which is tethered at unmanned plane private cable and can be good at meeting with cable core and optical fiber, to be tethered at
The use of unmanned plane is put into different size of multiple oval beaers and can be good at reducing cable between cable core and optical fiber
Degree is lost in core and optical fiber rigid stress, reduction, and nanometer protection crust can reduce corrosion using bend resistance anticorrosive nano material
Probability is to improve bending strength.
Description of the drawings
Fig. 1 is the structural schematic diagram of cable main body.
In figure：Cable core 1, optical fiber 2, interior filled layer 3, outer filled layer 4, earth conductor 5, nanometer protect crust 6,7, insulation
Layer, liner layer 8, shielded layer 9, oval beaer 10.
Specific implementation mode
The present invention is further elaborated in the following with reference to the drawings and specific embodiments.
One kind being tethered at unmanned plane private cable, including the cable that cable core 1 and optical fiber 2 are constituted,
1 outside of cable core is enclosed with insulating layer and liner layer successively, and 2 outside of optical fiber has shielded layer 9,
Also there is 5 layers of earth conductor, cable core 1 and optical fiber 2 are inside grounding conductor layer 5, cable core 1 and optical fiber 2 in cable
Between grounding conductor layer 5 have interior filled layer 3, be put between cable core 1 and optical fiber 2 it is different size of it is multiple ellipse by
Power body 10,
5 outside of grounding conductor layer is that outer filled layer 4 and nanometer protect crust 6.
The cable core 1 has 2-3 roots.
The nanometer protection crust uses bend resistance anticorrosive nano cable sheath.
Combined with special gelatin using the preferable reclaimed rubber of shock resistance, remain special gelatin acid and alkali-resistance, it is anti-aging while
Its impact resistance is increased, the cable sheath heat-resisting quantity obtained with mixing in other materials hot environment is good, prevents outside rubber
The swelling of skin promotes anticorrosive property, and after acid and alkali corrosion, rubber crust mass change is smaller, and tensile strength is impacted smaller, resistance to
Acid-base value is preferable, and due to the use of reclaimed rubber and nanometer fused quartz powder, cost of manufacture is greatly reduced, by vulcanizing to green body
It is modified so that rubber powder has preferably viscosity and weatherability, can improve composite material water resistance and with macromolecule
The adhesion strength of grain, improves the buckle resistance energy of composite material.
Embodiment 1
Bend resistance anticorrosive nano cable sheath, preparation method include the following steps：
Step 1, by 15 parts of nitrile rubber, 30 parts of latex reclaimed rubber, 20 parts of nanometer fused quartz powder, 15 parts of N326 carbon blacks, metatitanic acid
5 parts of ester coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded;
The sizing material being kneaded is filtered by step 2 with rubber strainer, and bottom sheet cools down after filtering, by one section of rubber compound after cooling
0.4 part of vulcanizing agent BP, 2 parts of Vulcanization accelerator TMTD is added, temperature to dumping at 120 DEG C is opening the sizing material that mixer is arranged
It returns glue in mill to be kneaded 5 minutes, last shaping cooling is parked for use；
Above-mentioned adhesive tape is fed extruder by step 3, and cross-head temperature is 100 DEG C, 65 DEG C of fluxing zone temperature, extruder temperature
85 DEG C, 40 DEG C of feeding temperature, 20 revs/min of screw speed obtains cable sheath green body after extrusion；
Step 4 parks green body, 12 hours storage periods or more, is then sleeved on plug, in 150 DEG C of steam vulcanization (cure)
Cable sheath is made by 50 DEG C of vulcanization in tank.
The nanometer vitreous silica powder, preparation method thereof is as follows：
Step 1 is clayed into power vitreous silica ball with ball mill, takes the powder that can cross 200 mesh sieve spare；
Step 2 goes 34 portions of sucrose to be dissolved in 200 parts of deionized waters, then slow into sucrose solution in the case of stirring
18 parts of above-mentioned fused quartz powders are added, is uniformly mixed, is placed in drying box, is dried at 80 DEG C, it is cooling, it is put into Gan Guozhong
Crucible is placed in high-temperature atmosphere furnace by step 3, and under the protection of nitrogen, 700 DEG C of guarantors are heated to 10 DEG C of heating rate
Warm 1h carries out sucrose thermal decomposition, gained powder is cooled down spare；
Step 4, by step 3 gained vitreous silica powder, be placed in microwave reaction stove, after first vacuumizing, with the speed of 5L/min
Logical nitrogen,
After a period of time, 1050 DEG C of progress carbothermic reduction reactions are heated to the heating rate of 10 DEG C/min, 1.5h postcoolings take
Go out, be then placed in Muffle furnace and heated, fire door is endless totally-enclosed, and 2h is handled at 600 DEG C, and removal reaction is remaining
Carbon obtains a nanometer fused quartz powder.
Embodiment 2
Step 1, by 5 parts of nitrile rubber, 15 parts of latex reclaimed rubber, 20 parts of nanometer fused quartz powder, 15 parts of N326 carbon blacks, titanate esters
5 parts of coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded；Remaining is prepared
It is identical with embodiment 1.
Embodiment 3
Step 1, by 10 parts of nitrile rubber, 5 parts of latex reclaimed rubber, 20 parts of nanometer fused quartz powder, 15 parts of N326 carbon blacks, titanate esters
5 parts of coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded；Remaining is prepared
It is identical with embodiment 1.
Embodiment 4
Step 1, by 15 parts of nitrile rubber, 15 parts of latex reclaimed rubber, 10 parts of nanometer fused quartz powder, 15 parts of N326 carbon blacks, metatitanic acid
5 parts of ester coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded；Remaining system
Standby and embodiment 1 is identical.
Embodiment 5
Step 1, by 5 parts of nitrile rubber, 35 parts of latex reclaimed rubber, 25 parts of nanometer fused quartz powder, 15 parts of N326 carbon blacks, titanate esters
5 parts of coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded；Remaining is prepared
It is identical with embodiment 1.
Embodiment 6
Step 1, by 15 parts of nitrile rubber, 10 parts of latex reclaimed rubber, 20 parts of nanometer fused quartz powder, 25 parts of N326 carbon blacks, metatitanic acid
5 parts of ester coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded；Remaining system
Standby and embodiment 1 is identical.
Embodiment 7
Step 1, by 15 parts of nitrile rubber, 20 parts of latex reclaimed rubber, 3 parts of nanometer fused quartz powder, 15 parts of N326 carbon blacks, titanate esters
5 parts of coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded；Remaining is prepared
It is identical with embodiment 1.
Embodiment 8
Step 1, by 12 parts of nitrile rubber, 12 parts of latex reclaimed rubber, 2 parts of nanometer fused quartz powder, 15 parts of N326 carbon blacks, titanate esters
5 parts of coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded；Remaining is prepared
It is identical with embodiment 1.
Embodiment 9
Step 1, by 2 parts of nitrile rubber, 16 parts of latex reclaimed rubber, 8 parts of nanometer fused quartz powder, 4 parts of organic acidification nano-silicons,
15 parts of N326 carbon blacks, 5 parts of titanate coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of progress mixings of dibenzoyl peroxide
Machine pressurization is kneaded；Remaining is prepared and embodiment 1 is identical.
Organic acidification nano-silicon preparation method is as follows：
Step 1 puts into the nano silicon oxide that 200g grain sizes are 30nm in aqueous solution, with the stirring of 3000rpm at 20 DEG C
After speed mechanical stirs 15min, the aqueous dispersions of nano silicon oxide are obtained；Add into the aqueous dispersions of obtained nano silicon oxide
Enter 15g modifer L monothio salicylic acids, at a temperature of 80 DEG C, is stirred under the rotating speed of 3000rpm, obtain modified nano silicon oxide
Suspension；The suspension of gained is spray-dried, the rotating speed of spray drying is 16000rpm, and the temperature of spray drying is
100 DEG C, obtain organic acidification nano-silicon；
Embodiment 10
Step 1, by 6 parts of nitrile rubber, 3 parts of latex reclaimed rubber, 12 parts of nanometer fused quartz powder, 15 parts of N326 carbon blacks, titanate esters
5 parts of coupling agent, 5 parts of organic siliconresin, 3 parts of sulphur, 2 parts of carry out mixer pressurizations of dibenzoyl peroxide are kneaded；Remaining is prepared
It is identical with embodiment 1.
Reference examples 1
It is with 1 difference of embodiment：In step 1 prepared by cable sheath, nitrile rubber is not added, remaining step and implementation
Example 1 is identical.
Reference examples 2
It is with 1 difference of embodiment：In step 1 prepared by cable sheath, latex reclaimed rubber is not added, remaining step and reality
It is identical to apply example 1.
Reference examples 3
It is with 1 difference of embodiment：It is constant with diatomite substitution fused quartz powder dosage in step 1 prepared by cable sheath,
Remaining step is identical with embodiment 1.
Reference examples 4
It is with 1 difference of embodiment：In step 1 prepared by cable sheath, not with silica substitution fused quartz powder dosage
Become, remaining step is identical with embodiment 1.
Reference examples 5
It is with 1 difference of embodiment：In step 2 prepared by cable sheath, vulcanizing agent BP is not added in one section of rubber compound,
Remaining step is identical with embodiment 1.
Reference examples 6
It is with 1 difference of embodiment：In step 2 prepared by cable sheath, Vulcanization accelerator TMTD is not added in one section of rubber compound,
Remaining step is identical with embodiment 1.
Reference examples 7
It is with 1 difference of embodiment：In step 2 prepared by nanometer fused quartz powder, dosage is modified not with starch substituting saccharose
Become, remaining step is identical with embodiment 1.
Reference examples 8
It is with 1 difference of embodiment：In step 2 prepared by nanometer fused quartz powder, dosage of sucrose is reduced to 17 parts, remaining step
Suddenly identical with embodiment 1.
Reference examples 9
It is with 1 difference of embodiment：In step 4 prepared by nanometer fused quartz powder, added with carbon dioxide substitution nitrogen
Thermal reduction, remaining step are identical with embodiment 1.
Reference examples 10
It is with 1 difference of embodiment：In step 4 prepared by nanometer fused quartz powder, heated with hydrogen sulfide substitution nitrogen
Reduction, remaining step are identical with embodiment 1.
It chooses the cable sheath being prepared and carries out performance detection respectively,
Hcl corrosion condition is：Medium 10wt% hydrochloric acid, corrosion temperature are 150 degrees Celsius；Etching time is 48h；（Sample size
250mm × 45mm × 16mm long x wide x are thick）；Sample income after corrosion is seen that bending strength test is added using three-point bending
It carries, span 200mm, test speed 10mm/min, 65 DEG C of temperature is kept in insulating box.
The experimental results showed that there is bend resistance anti-corrosion cable crust provided by the invention excellent bend resistance effect, material to exist
When fc-specific test FC, flexural strength is higher, illustrates that counter-bending effect is better, conversely, effect is poorer；Before corrosion treatment
Flexural strength comparison afterwards, difference is bigger, and anti-corrosion effects are poorer；With embodiment 1 the difference lies in that embodiment 2 is in fact
Example 10 is applied, changes the proportioning of each raw material composition in cable sheath material respectively, there are different journeys to the bending resistance of material
The influence of degree, in nitrile rubber, latex reclaimed rubber, nanometer fused quartz powder quality proportioning is 3：6：4, other dispensing dosages are fixed
When, counter-bending effect is best；It is worth noting that organic acidification nano-silicon is added in embodiment 9, flexural strength is significantly improved, is said
Bright organic acidification nano-silicon has better optimization function to the bending resistance of filling-material structure；Reference examples 1 to reference examples 2 are no longer used
Nitrile rubber and latex reclaimed rubber, flexural strength are decreased obviously, and illustrate being generated to cable sheath bending property for two kinds of components
Great influence；Reference examples 3 do not add nanometer fused quartz powder to reference examples 4 and are replaced with silica and diatomite,
Effect is still bad, illustrates that the doping of nanometer fused quartz powder is most important；Reference examples 5 do not add vulcanizing agent to reference examples 6
It is modified processing with accelerating agent, effect is also bad, illustrates that additive modification plays an important role to the flexural strength of material；Control
Example 7 and the starch substituting saccharose of example 8 are modified quartz and reduce dosage of sucrose, and counter-bending reduction with obvious effects, illustrate sucrose has
Machine is modified very big on the influence of nanometer fused quartz powder；Reference examples 9 and example 10 are added with carbon dioxide and hydrogen sulfide substitution nitrogen
Thermal reduction, effect is still bad, illustrates that nitrogen atmosphere is critically important to the reduction reaction process of silica flour；Therefore using present invention system
Standby anti-corrosion cable skin material has good counter-bending effect.
Claims (3)
1. one kind being tethered at unmanned plane private cable, which is characterized in that including cable core（1）And optical fiber（2）The cable of composition,
The cable core（1）Outside is enclosed with insulating layer successively（9）And liner layer（8）, optical fiber（2）Outside has shielded layer
（9）,
Also there is grounding conductor layer in cable（5）, cable core（1）And optical fiber（2）In grounding conductor layer（5）Inside, cable core
（1）And optical fiber（2）In grounding conductor layer（5）Between have interior filled layer（3）, cable core（1）And optical fiber（2）Between be put into not
With multiple oval beaers of size（10）,
Grounding conductor layer（5）Outside is outer filled layer（4）Crust is protected with nanometer（6）.
2. one kind according to claim 1 is tethered at unmanned plane private cable, which is characterized in that the cable core（1）Tool
There are 2-3 roots.
3. one kind according to claim 1 is tethered at unmanned plane private cable, which is characterized in that the nanometer protects crust
（6）Using bend resistance anticorrosive nano material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045803.7A CN108281230A (en) | 2018-01-17 | 2018-01-17 | One kind being tethered at unmanned plane private cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045803.7A CN108281230A (en) | 2018-01-17 | 2018-01-17 | One kind being tethered at unmanned plane private cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108281230A true CN108281230A (en) | 2018-07-13 |
Family
ID=62803801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810045803.7A Pending CN108281230A (en) | 2018-01-17 | 2018-01-17 | One kind being tethered at unmanned plane private cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN108281230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659063A (en) * | 2018-12-04 | 2019-04-19 | 西安西电光电缆有限责任公司 | It is tethered at cable, be tethered at unmanned thermomechanical components and is tethered at UAV system |
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|---|---|---|---|---|
| CN201956126U (en) * | 2011-03-01 | 2011-08-31 | 中国电子科技集团公司第二十三研究所 | Mooring photoelectric composite cable |
| CN103928189A (en) * | 2014-05-04 | 2014-07-16 | 中天科技装备电缆有限公司 | High-power railway communication signal control photo-electricity composite cable |
| CN105111555A (en) * | 2015-09-24 | 2015-12-02 | 界首市芮齐塑胶有限公司 | Acid and alkali resistant rubber material |
| CN206021977U (en) * | 2016-07-13 | 2017-03-15 | 深圳市九洲蓉胜科技有限公司 | A kind of multifunctional integrated miniature tether cable |
| CN106927800A (en) * | 2015-12-31 | 2017-07-07 | 湖南工业大学 | A kind of process for preparing note solidification forming fused quartz ceramic |
| CN106927801A (en) * | 2015-12-31 | 2017-07-07 | 湖南工业大学 | The preparation method and functionalization fused quartz powder of the functionalization fused quartz powder prepared for quartz-ceramics |
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2018
- 2018-01-17 CN CN201810045803.7A patent/CN108281230A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956126U (en) * | 2011-03-01 | 2011-08-31 | 中国电子科技集团公司第二十三研究所 | Mooring photoelectric composite cable |
| CN103928189A (en) * | 2014-05-04 | 2014-07-16 | 中天科技装备电缆有限公司 | High-power railway communication signal control photo-electricity composite cable |
| CN105111555A (en) * | 2015-09-24 | 2015-12-02 | 界首市芮齐塑胶有限公司 | Acid and alkali resistant rubber material |
| CN106927800A (en) * | 2015-12-31 | 2017-07-07 | 湖南工业大学 | A kind of process for preparing note solidification forming fused quartz ceramic |
| CN106927801A (en) * | 2015-12-31 | 2017-07-07 | 湖南工业大学 | The preparation method and functionalization fused quartz powder of the functionalization fused quartz powder prepared for quartz-ceramics |
| CN206021977U (en) * | 2016-07-13 | 2017-03-15 | 深圳市九洲蓉胜科技有限公司 | A kind of multifunctional integrated miniature tether cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659063A (en) * | 2018-12-04 | 2019-04-19 | 西安西电光电缆有限责任公司 | It is tethered at cable, be tethered at unmanned thermomechanical components and is tethered at UAV system |
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