CN109193178A - A kind of engine dynamic stress signal telemetry system - Google Patents
A kind of engine dynamic stress signal telemetry system Download PDFInfo
- Publication number
- CN109193178A CN109193178A CN201811007534.1A CN201811007534A CN109193178A CN 109193178 A CN109193178 A CN 109193178A CN 201811007534 A CN201811007534 A CN 201811007534A CN 109193178 A CN109193178 A CN 109193178A
- Authority
- CN
- China
- Prior art keywords
- antenna
- rotor
- metallic conductor
- conductor ring
- feed line
- 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.)
- Granted
Links
- 230000005855 radiation Effects 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000013461 design Methods 0.000 claims abstract description 11
- 239000011888 foil Substances 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000005259 measurement Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005562 fading Methods 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0061—Force sensors associated with industrial machines or actuators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/104—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
Abstract
The present invention relates to a kind of engine dynamic stress signal telemetry systems, including multiple transmitters being distributed on rotor, it is fixed on the transmitting antenna rotated on rotor with rotor, the receiving antenna being fixed on stator, the foil gauge being attached on engine rotor blade, power splitter and receiver, the transmitting antenna includes medium substrate, the micro-strip dipole antenna of ground level and multiple groups different operating frequency point, every group of micro-strip dipole antenna includes being located at microstrip feed line and radiation patch, microstrip feed line is used to feed to radiation patch, radiation patch and the Design of length of microstrip feed line are at half working frequency points wavelength, the overlay region Design of length of the two is at a quarter working frequency points wavelength；Receiving antenna uses loaded ring antenna structure.The present invention can prevent interchannel crosstalk and channel fading.
Description
Technical field
The present invention relates to a kind of engine dynamic stress signal telemetry systems.
Background technique
Aero-engine, gas turbine are the core mechanical components of the great key equipment such as national defence aircraft, naval vessel,
In, start movable blade work under the bad working environments environment such as high temperature, high pressure, high revolving speed, during daily production run, leaf
Piece fracture defect is especially prominent, once leaf destruction occurs, can bring serious economic loss and safety accident.In engine reality
Under the working condition of border, by the factors shadow such as the connection rigidity of movable vane piece and wheel disc, engine centrifugal power, internal temperature and air-flow power
It rings, dynamic frequency (natural frequency of vibration) of the blade under rotation status and the quiet frequency under non-rotating state are different, therefore pass through measurement
The dynamic stress signal of engine rotor blade can effectively monitor movable vane piece working condition and operational safety in real time.
On the one hand, high temperature, high pressure, high-revolving working condition, traditional contact are in during normal working of engine
Formula dynamic stress Signal Measurement System using slip ring realize power supply and data transmission, this method service life is extremely low, to engine structure into
It has gone change, engine operational safety hidden danger is significantly greatly increased.
On the other hand, contactless rotor blade dynamic stress Signal Measurement System is also known as engine rotor blade dynamic stress
Signal telemetry system.Telemetering refers to the parameter of measurand outside certain distance, by experiencing, acquiring, is sent by transmission medium
To a kind of measurement process for receiving place and being demodulated, recorded, being handled.Non-contact data real-time transmission system can be divided into sense
Answer formula, infrared type and wireless digital.Wherein, induction type data transfer mode be based on electromagnetic coupling principle, carrier frequency by
To the limitation of magnetic core cutoff frequency, it is difficult to meet high speed data transfer requirement；Infrared type data transfer mode is made using infrared ray
For carrier, it is only suitable for the data transmission of short distance, low-angle, accessible occasion, and is not suitable for severe Service Environment；Without line number
Word formula data transfer mode is widely used in high speed rotation wireless communication system, has the characteristics that short distance low-power consumption.
In another aspect, engine dynamic stress signal telemetry system is located at the part of a rotating body, reception and transmitting module
It is rotated with shaft, the radiation directivity of antenna can do the rotation of approximate circumference, therefore, the design of wireless data transmission antenna with axis
" Doppler effect " caused by relative motion and " shadow effect " need to be solved, and prevents interchannel crosstalk and channel fading.
Summary of the invention
In view of the above-mentioned problems, the present invention designs a kind of engine dynamic stress that can prevent interchannel crosstalk and channel fading
Signal telemetry system, the wireless data transmission antenna that the present invention uses, including transmitting antenna and receiving antenna two parts, are suitable for
The dynamic stress signal data of short range transmits within 10mm between engine rotor part and stator part.Technical solution of the present invention is such as
Under:
A kind of engine dynamic stress signal telemetry system, including multiple transmitters being distributed on rotor, is fixed on rotor
On the transmitting antenna, the receiving antenna being fixed on stator, the strain that is attached on engine rotor blade that are rotated with rotor
Piece, power splitter and receiver, the transmitting antenna include that the micro-strip of medium substrate, ground level and multiple groups different operating frequency point is even
Pole sub-antenna, which is characterized in that
Every group of micro-strip dipole antenna includes being located at microstrip feed line and radiation patch, and microstrip feed line is used to present to radiation patch
The Design of length of electricity, radiation patch and microstrip feed line at half working frequency points wavelength, the overlay region Design of length of the two at
A quarter working frequency points wavelength；Receiving antenna uses loaded ring antenna structure, including metallic conductor ring, loading resistor and plane
Reflecting plate, metallic conductor ring are metal pipe structure, and metallic conductor ring is divided into two semi-rings, loaded in series electricity among two semi-rings
Resistance, resistance are equal to the average characteristics impedance of metallic conductor ring, and both ends are feed ends, and plane-reflector is placed in metallic conductor ring
Behind, to improve antenna in the directivity factor in the direction θ=0, the direction θ=0 be perpendicular to plane-reflector, it is anti-by plane
Penetrate the direction that plate is directed toward metallic conductor ring；The spacing of metallic conductor ring and plane-reflector is set as λ≤0.2 0.05≤d/,
Middle d is distance of the plane-reflector away from metallic conductor ring, and λ is the wavelength of receiving antenna working frequency points；
The each group micro-strip dipole antenna of transmitting antenna is connect by transmission cable with transmitter, and receiving antenna passes through difference
Two-wire is connect with power splitter, and power splitter is connect with receiver, and the dynamic strain signal of foil gauge measurement is transferred to hair by transmission cable
It penetrates machine, after emitted machine modulating-coding, is emitted by transmitting antenna, signal is distributed to through power splitter after receiving antenna reception and is connect
Each channel of receipts machine carries out signal decoding demodulation.
Substantive distinguishing features of the invention are: transmitting antenna uses micro-strip dipole antenna structure, has high gain, high-efficient
Performance can meet multiple channels respectively aerial band width and modulation frequency by designing suitable transmitting antenna single-frequency point bandwidth
The isolated requirement of point, effectively avoids interchannel crosstalk；Receiving antenna uses loaded ring antenna structure, has with wide, transmission damage
Small performance is consumed, guarantees that in transmitter, antenna transmission coefficient keeps almost the same requirement in armature spindle high-speed rotation,
The high-speed transfer for realizing high-transmission coefficient rotational telemetry signal, effectively avoids channel fading.Have compared with prior art following
Advantage: overcoming that traditional slip ring contact dynamic stress Signal Measurement System service life is extremely low, easy increase engine operational safety hidden danger,
And in existing contactless dynamic stress Signal Measurement System, induction type data transfer mode is difficult to realize high speed data transfer,
The shortcomings that infrared type data transfer mode is not suitable for severe Service Environment proposes that engine dynamic stress signal telemetry can be achieved
Wireless data transmission antenna, the antenna are matched with telemetry system transmitter and receiver, it can be achieved that high under severe Service Environment
Service life, short distance, low-power consumption, stabilization, the dynamic stress telemetered signal high-speed transfer of high-transmission signal-to-noise ratio.
Detailed description of the invention
Fig. 1 shows micro-strip dipole antenna structural schematic diagram of the invention.
Fig. 2 shows single channel transmitting antenna reflection coefficient schematic diagrames of the invention.
Fig. 3 shows loaded ring antenna structure view of the invention.
Fig. 4 shows receiving antenna reflection coefficient schematic diagram of the invention.
Fig. 5 shows engine dynamic stress signal telemetry system structure diagram of the invention.
Figure label explanation: 0 is micro-strip dipole antenna；1 is radiation patch；2 be microstrip feed line (also known as coupling line)；
3 be medium substrate；4 be ground level；5 is load loop antenna, and 6 be metallic conductor ring, and 7 be loading resistor, and 8 be plane-reflector；9
It is foil gauge for engine rotor, 10,11 be transmission cable, and 12 be transmitter, and 13 be transmitting antenna, and 14 be rotor loop antenna
Slot, 15 be receiving antenna, and 16 be stator loop antenna slot, and 17 be power splitter, and 18 be receiver, and 19 be peripheral equipment.
Specific embodiment
The present invention will be described with reference to the accompanying drawings and examples.
The present invention designs a kind of wireless data transmission antenna of achievable engine dynamic stress signal telemetry, including transmitting day
Line and receiving antenna two parts further devise the overall structure of engine dynamic stress signal telemetry system on this basis.
(1) transmitting antenna:
As shown in Figure 1, transmitting antenna 13 uses multiple 0 structures of micro-strip dipole antenna, micro-strip dipole antenna 0 includes spoke
Penetrating patch 1, microstrip feed line (also known as coupling line) 2, medium substrate 3 and ground level 4, radiation patch 1 is metal material, is located at and is situated between
3 upper surface of matter substrate, microstrip feed line 2 are metal materials, are located inside medium substrate 3, and ground level 4 is metal material, are located at and are situated between
3 lower surface of matter substrate, medium substrate 3 use printed circuit board (PCB) common sheet material, and the width of radiation patch 1 is by turning
The limitation of subring size, be designed to it is equal with the width of microstrip feed line 2, microstrip feed line 2 be used to give radiation patch 1 feed, radiation
The Design of length of patch 1 and microstrip feed line 2 is at half working frequency points wavelength, the overlay region of radiation patch 1 and microstrip feed line 2
Design of length is at a quarter working frequency points wavelength, radiation patch 1 and the bending radius of microstrip feed line 2, the thickness of medium substrate 3
It can be adjusted according to actual installation condition, antenna performance is not impacted.
By adjusting the width of radiation patch 1, between 2 liang of bands of radiation patch 1 and microstrip feed line the thickness of substrate or
Microstrip feed line 2 is biased in width direction, so that the overlapping area for changing microstrip feed line 2 and radiation patch 1 can adjust micro-strip dipole
The input impedance of sub-antenna 0.
Transmitting antenna 13 uses coaxial feeding mode, and coaxial inner conductor passes through medium substrate and connects on microstrip feed line 2,
Coaxial line shielded layer is connect with 3 bottom surface ground level 4 of medium substrate, realizes the excitation to antenna；
Transmitting antenna 13 belongs to patch antenna type, and the environment of 100MHz, each micro-strip are higher than suitable for driving frequency
Dipole antenna 0 corresponds to a transmission channel, the corresponding working frequency points of each transmission channel, as shown in Fig. 2, microstrip dipole
0 single-frequency point narrow bandwidth of antenna, only 40MHz, can meet the requirement of multiple transmission channel modulation frequency point separation, effectively avoid interchannel
Crosstalk has the characteristics that high gain, high-efficient.
(2) receiving antenna:
As shown in figure 3, receiving antenna 15 is using load 5 structure of loop antenna, including metallic conductor ring 6,7 peace of loading resistor
Face reflecting plate 8, metallic conductor ring 6 are metal pipe structures, and conductor ring diameter a and metal pipe diameter b can be according to actual installation items
Part setting, 6 both ends of metallic conductor ring are feed ends, 6 dimidiation of metallic conductor ring, and average characteristic impedance is approximatelyThe loading resistor 7 of centre series connection special value, resistance are equal to the average characteristics impedance of metallic conductor ring 6, gold
Belonging to the plane-reflector 8 that conductor loop 6 is placed behind can be improved antenna in the directivity factor in the direction θ=0；The direction θ=0 is vertical
In plane-reflector 8, the direction of metallic conductor ring 6 is directed toward by reflecting plate；Plane-reflector 8 is metal material.
Metallic conductor ring 6 by access loading resistor 7, two semicircular rings can outside radiated electromagnetic wave, along the electric current point of ring
Cloth is travelling wave current, has one-way radiation, and frequency band is wider.Metallic conductor ring 6 and the spacing of plane-reflector 8 are set as
λ≤0.2 0.05≤d/, wherein d is distance of the plane-reflector 8 away from metallic conductor ring 6, and λ is the wave of working frequency points
Long, which meets the requirement of 15 all working frequency point corresponding wavelength of receiving antenna, receiving antenna can be improved at this time
Directivity factor.
Receiving antenna 15 uses difference dual feed mode, and two differential lines are respectively connected to two feedbacks of metallic conductor ring 6
The excitation to antenna is realized in electric port.
Receiving antenna 15 belongs to loop antenna type, is applicable to the received environment of broader frequency spectrum, as shown in figure 4, receiving
Antenna 15 has broadband character, and bandwidth covers 1GHz-3GHz, has high-gain in the direction θ=0.
(3) installation site:
Relative mounting location and the engine dynamic stress signal for being illustrated in figure 5 transmitting antenna 13 and receiving antenna 15 are distant
Examining system structural schematic diagram, transmitting antenna 13 are mounted in rotor ring antenna slot 14, and rotor ring antenna slot 14 and transmitter 12 are pacified
It being rotated on engine rotor 9 with engine rotor 9, rotor ring antenna slot 14 is overlapped with the central axis of engine rotor 9,
Receiving antenna 15 is mounted in stator loop antenna slot 16, and the center of engine rotor 9 is directed toward in the direction θ=0 of receiving antenna 15, is put down
The mountable back side in stator loop antenna slot 16 of face reflecting plate 8 or the inside for being embedded in stator loop antenna slot 16, stator loop antenna slot
16 stationary in engine working process and rotor ring antenna slots 14 are docked using shaft end face or shaft radial abutment shape
The central axis of formula, stator loop antenna slot 16 and rotor ring antenna slot 14 is overlapped, and is guaranteed in engine rotary course, and day is received
Always face transmitting antenna, stator loop antenna slot 16 and rotor ring antenna slot 14 use insulating materials, such as plastics, timber to line.
Transmitting antenna 13 is connect by transmission cable 11 with transmitter 12, and receiving antenna 15 passes through difference two-wire and power splitter
17 connections, power splitter 17 are connect with receiver 18, and foil gauge 10 is attached on the blade of 9 leaf dish of engine rotor, and foil gauge 10 is surveyed
The dynamic strain signal of amount is transferred to transmitter 12 by transmission cable 11, after emitted 12 modulating-coding of machine, is sent out by transmitting antenna 13
Penetrate, receiving antenna 15 receive, after through power splitter 17 by signal averaging distribute to receiver 18 each channel carry out signal solution
Code demodulation, decoded signal are output to peripheral equipment 19 from receiver 18.
Micro-strip dipole antenna 0 all the way is accessed in each channel of transmitter 12, and transmitting antenna 13 is by multipath microstrip dipole
Antenna 0 forms, and the number of micro-strip dipole antenna 0 is determined by the number of transmitter channels.For example, certain engine dynamic stress signal
Telemetry system transmitter 12 shares 8 channels, and micro-strip dipole antenna 0,8 road micro-strip dipole antenna 0 in external 8 road is in rotor altogether
The arrangement of 14 inner periphery of loop antenna slot, forms the transmitting antenna 13 of telemetry system.All channels of receiver 18 are external one common
The receiving antenna 15 of 5 structure type of loop antenna is loaded, which accesses after power splitter 17 carries out power averaging distribution
Each channel of receiver 18.For example, certain engine dynamic stress signal telemetry system receiver 18 shares 8 channels, day is received
Line 15 is divided into each channel of 8 road signals access receiver 18 after power splitter 17 carries out power averaging distribution.
Claims (1)
1. a kind of engine dynamic stress signal telemetry system, including multiple transmitters being distributed on rotor, is fixed on rotor
The transmitting antenna that is rotated with rotor, the receiving antenna being fixed on stator, the foil gauge being attached on engine rotor blade,
Power splitter and receiver, the transmitting antenna include the micro-strip dipole of medium substrate, ground level and multiple groups different operating frequency point
Sub-antenna, which is characterized in that
Every group of micro-strip dipole antenna includes being located at microstrip feed line and radiation patch, and microstrip feed line is used to feed to radiation patch,
Radiation patch and the Design of length of microstrip feed line are at half working frequency points wavelength, and the overlay region Design of length of the two is at four points
One of working frequency points wavelength；Receiving antenna uses loaded ring antenna structure, including metallic conductor ring, loading resistor and plane reflection
Plate, metallic conductor ring are metal pipe structure, and metallic conductor ring is divided into two semi-rings, loaded in series resistance among two semi-rings, electricity
The average characteristics impedance that resistance value is equal to metallic conductor ring is hindered, both ends are feed ends, and plane-reflector is placed in the back of metallic conductor ring
Afterwards, to improve antenna in the directivity factor in the direction θ=0, the direction θ=0 is perpendicular to plane-reflector, by plane-reflector
It is directed toward the direction of metallic conductor ring；The spacing of metallic conductor ring and plane-reflector is set as λ≤0.2 0.05≤d/, and wherein d is
Distance of the plane-reflector away from metallic conductor ring, λ are the wavelength of receiving antenna working frequency points；
The each group micro-strip dipole antenna of transmitting antenna is connect by transmission cable with transmitter, and receiving antenna passes through difference two-wire
It being connect with power splitter, power splitter is connect with receiver, and the dynamic strain signal of foil gauge measurement is transferred to transmitter by transmission cable,
After emitted machine modulating-coding, emitted by transmitting antenna, signal is distributed into receiver through power splitter after receiving antenna reception
Each channel carry out signal decoding demodulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811007534.1A CN109193178B (en) | 2018-08-31 | 2018-08-31 | Engine dynamic stress signal telemetry system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811007534.1A CN109193178B (en) | 2018-08-31 | 2018-08-31 | Engine dynamic stress signal telemetry system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109193178A true CN109193178A (en) | 2019-01-11 |
| CN109193178B CN109193178B (en) | 2023-09-26 |
Family
ID=64917088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811007534.1A Active CN109193178B (en) | 2018-08-31 | 2018-08-31 | Engine dynamic stress signal telemetry system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109193178B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509370A (en) * | 2020-05-25 | 2020-08-07 | 中科智远信息科技有限公司 | Video wireless microwave transmission method and transmission device |
| CN114528743A (en) * | 2022-04-24 | 2022-05-24 | 中国航发四川燃气涡轮研究院 | Method for calculating dynamic stress monitoring limit value of rotor blade in wide rotating speed range |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060003762A (en) * | 2004-07-07 | 2006-01-11 | 현대자동차주식회사 | Telemetry system for measurement of strain of flywheel rotor |
| CN1748129A (en) * | 2003-01-23 | 2006-03-15 | 西门子公司 | Method for determination of the stress on blades of a turbine machine during operation and corresponding device for carrying out said method |
| CN1875519A (en) * | 2003-10-27 | 2006-12-06 | 罗伯特·博世有限公司 | Antenna assembly, in particular for radar applications in motor vehicles |
| CN101908895A (en) * | 2009-06-08 | 2010-12-08 | 泰纳股份公司 | The method of receiver and received signal |
| CN101923164A (en) * | 2009-05-20 | 2010-12-22 | 罗伯特.博世有限公司 | Be used for determining method and apparatus especially for one or more rotating speeds of the supercharging device of internal combustion engine |
| CN103247845A (en) * | 2013-04-08 | 2013-08-14 | 中国电子科技集团公司第十研究所 | Phased-array antenna subarray for circularly polarized wide-angle scanning |
| CN204966693U (en) * | 2015-09-25 | 2016-01-13 | 成都泰然科技有限公司 | Smart card induction antenna of all -metal protection |
| CN106374207A (en) * | 2016-09-27 | 2017-02-01 | 厦门大学 | B1/L1 broadband satellite antenna based on T-shaped balance load of L-shaped slot |
| CN107764198A (en) * | 2017-11-02 | 2018-03-06 | 天津大学 | Engine rotor and stator blade axial gap light projection measuring device and method |
| CN108011188A (en) * | 2017-11-28 | 2018-05-08 | 电子科技大学 | A kind of three frequency range low section omnidirectional circular-polarized antennas |
| CN208723103U (en) * | 2018-08-31 | 2019-04-09 | 天津大学 | A kind of engine dynamic stress signal telemetry device |
-
2018
- 2018-08-31 CN CN201811007534.1A patent/CN109193178B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748129A (en) * | 2003-01-23 | 2006-03-15 | 西门子公司 | Method for determination of the stress on blades of a turbine machine during operation and corresponding device for carrying out said method |
| CN1875519A (en) * | 2003-10-27 | 2006-12-06 | 罗伯特·博世有限公司 | Antenna assembly, in particular for radar applications in motor vehicles |
| KR20060003762A (en) * | 2004-07-07 | 2006-01-11 | 현대자동차주식회사 | Telemetry system for measurement of strain of flywheel rotor |
| CN101923164A (en) * | 2009-05-20 | 2010-12-22 | 罗伯特.博世有限公司 | Be used for determining method and apparatus especially for one or more rotating speeds of the supercharging device of internal combustion engine |
| CN101908895A (en) * | 2009-06-08 | 2010-12-08 | 泰纳股份公司 | The method of receiver and received signal |
| CN103247845A (en) * | 2013-04-08 | 2013-08-14 | 中国电子科技集团公司第十研究所 | Phased-array antenna subarray for circularly polarized wide-angle scanning |
| CN204966693U (en) * | 2015-09-25 | 2016-01-13 | 成都泰然科技有限公司 | Smart card induction antenna of all -metal protection |
| CN106374207A (en) * | 2016-09-27 | 2017-02-01 | 厦门大学 | B1/L1 broadband satellite antenna based on T-shaped balance load of L-shaped slot |
| CN107764198A (en) * | 2017-11-02 | 2018-03-06 | 天津大学 | Engine rotor and stator blade axial gap light projection measuring device and method |
| CN108011188A (en) * | 2017-11-28 | 2018-05-08 | 电子科技大学 | A kind of three frequency range low section omnidirectional circular-polarized antennas |
| CN208723103U (en) * | 2018-08-31 | 2019-04-09 | 天津大学 | A kind of engine dynamic stress signal telemetry device |
Non-Patent Citations (1)
| Title |
|---|
| HASSAN H. KHALILI，PETER R. GREEN，DANIELLE GEORGE；AUTOMATED WIRELESS PROPAGATION MEASUREMENT SYSTEM FOR EVALUATING THE DEPLOYMENT O * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509370A (en) * | 2020-05-25 | 2020-08-07 | 中科智远信息科技有限公司 | Video wireless microwave transmission method and transmission device |
| CN114528743A (en) * | 2022-04-24 | 2022-05-24 | 中国航发四川燃气涡轮研究院 | Method for calculating dynamic stress monitoring limit value of rotor blade in wide rotating speed range |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109193178B (en) | 2023-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kolodziej et al. | Ring array antenna with optimized beamformer for simultaneous transmit and receive | |
| CN109193178A (en) | A kind of engine dynamic stress signal telemetry system | |
| CN106450738B (en) | High-gain double-circle polarization plate aerial | |
| US5745081A (en) | HF antenna for a helicopter | |
| CN208723103U (en) | A kind of engine dynamic stress signal telemetry device | |
| CN208723090U (en) | A kind of wireless data transmission antenna of achievable engine dynamic stress signal telemetry | |
| US2677766A (en) | Scalloped limacon pattern antenna | |
| CN104362426A (en) | Broadband UHF (ultra-high frequency) RFID (radio frequency identification) reader antenna | |
| CN109216892A (en) | A kind of wireless data transmission antenna for engine dynamic stress signal telemetry system | |
| CN207217773U (en) | Antenna, emitter, reception device and wireless communication system | |
| US20020113749A1 (en) | Polarisation control of parabolic antennas | |
| US2644090A (en) | Recessed slot antenna | |
| US20030117335A1 (en) | Thermal locate 5W(V) and 5W(H) SSPA's on back of reflector(S) | |
| CN106229644B (en) | A kind of multifrequency Terahertz slot antenna and its preparation method and application | |
| CN104915615A (en) | Rfid reader device and antenna device | |
| CN215989232U (en) | Antenna and antenna array | |
| CN208939137U (en) | Antenna system | |
| US11682839B2 (en) | Antenna, transmitting device, receiving device and wireless communication system | |
| CN204809400U (en) | Circular polarized antenna | |
| CN108226930A (en) | A kind of carrier-borne small-size multifunction radar | |
| WO2020209206A1 (en) | Wireless communication system | |
| CN110277647B (en) | Antenna for secret communication | |
| JP4366469B2 (en) | Antenna device | |
| EP3406197B1 (en) | Rotary joint having a capacitive data link with modular support | |
| CA2585403A1 (en) | Dual sphere uwb antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240120 Address after: Office Building 451-04, Xuefu Industrial Zone Management Committee, Xiqing District, Tianjin, 300000 Patentee after: SMARTMENS (TIANJIN) TECHNOLOGY CO.,LTD. Country or region after: China Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University Country or region before: China |