CN204359457U - Based on the on-line monitoring system of the GIS internal bus running temperature of surface acoustic wave techniques - Google Patents
Based on the on-line monitoring system of the GIS internal bus running temperature of surface acoustic wave techniques Download PDFInfo
- Publication number
- CN204359457U CN204359457U CN201420775535.1U CN201420775535U CN204359457U CN 204359457 U CN204359457 U CN 204359457U CN 201420775535 U CN201420775535 U CN 201420775535U CN 204359457 U CN204359457 U CN 204359457U
- Authority
- CN
- China
- Prior art keywords
- temperature sensor
- bus
- acoustic wave
- surface acoustic
- saw
- 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.)
- Expired - Fee Related
Links
- 238000010897 surface acoustic wave method Methods 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims description 30
- 230000000694 effects Effects 0.000 claims description 11
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- 239000004519 grease Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 4
- 230000000644 propagated effect Effects 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 238000010292 electrical insulation Methods 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
- G01K11/26—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies
- G01K11/265—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies using surface acoustic wave [SAW]
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses the on-line monitoring system of the GIS internal bus running temperature based on surface acoustic wave techniques, this system comprises collector and SAW temperature sensor, described collector is arranged on the shell of gas-insulated switch, bus is built in the shell of gas-insulated switch, described SAW temperature sensor is the temperature sensor of passive and wireless, described SAW temperature sensor is arranged on the contact place of bus, described collector is used for launching the pumping signal of radio frequency signal as SAW temperature sensor to described SAW temperature sensor, by the running temperature of collector and SAW temperature sensor gas-insulated switch internal bus.This system makes full use of the feature of surface acoustic wave techniques, under the prerequisite ensureing GIS built-in electrical insulation performance, realizes the on-line monitoring of GIS built-in electrical insulation switch running temperature.
Description
Technical field
The utility model relates to a kind of on-line monitoring system of the GIS internal high voltage conductor running temperature based on surface acoustic wave techniques, specifically refers to the on-line monitoring system of the GIS internal bus running temperature based on surface acoustic wave techniques.
Background technology
Gas-insulated switch (Gas Insulated Switchgear, being called for short GIS) processing technology is strict, advanced technology, SF6 gas is adopted to be insulating medium, there is good connecting-disconnecting function, insulating property and arc extinction performance, and time between overhauls(TBO) length, failure rate is low, the advantage such as maintenance cost is few, floor area is little, be widely used at present in electric system.
But when the internal high voltage conductor contact in GIS device is bad, because contact resistance becomes large, can superheating phenomenon be produced load current flow is out-of-date.The overheated meeting of contact, bus causes insulation ag(e)ing even to puncture, thus causes short circuit, forms major accident, causes huge economic loss.Therefore, need to monitor the maximum temperature of high-pressure conductor.
The disconnector of gas-insulated switch inside, isolating switch and bus are the high-pressure conductor of gas-insulated switch, the maximum temperature value of disconnector often occurs in switch contact place, the maximum temperature value of isolating switch often occurs in the high pressure guide rod outside radome, the maximum temperature value of bus often occurs in bus contact place, is judge whether high-pressure conductor occurs the important means of superheating phenomenon to the monitoring of best temperature value.
In electric system, GIS is harsher to inner equipment requirement, and plenum interior does not allow to there is the magazines such as metal tip, burr and dust, and the maintenance of GIS with safeguard more complicated.Conventional art adopts temperature sensor directly to contact high-pressure conductor to the monitoring of high-pressure conductor maximum temperature value to carry out thermometric usually.Traditional temperature sensor needs externally fed or storage battery power supply, and the maintenance of equipment and the replacing of battery be inconvenience all very.So with regard to its way to take power, traditional temperature sensor is worthless.
Surface acoustic wave techniques is a kind of sensor technology of passive and wireless, the temperature sensor of surface acoustic wave techniques is adopted to be referred to as SAW Temperature Sensors, i.e. SAW temperature sensor, this SAW temperature sensor is the temperature sensor of passive and wireless, do not need power supply and connecting line during use, launch radio frequency signal by means of only collector to it and just can trigger its work as pumping signal.SAW temperature sensor has high sensitivity, low-power consumption, zero-emission, the feature such as non-maintaining, and design because SAW temperature sensor adopts hermetically sealed Multicarity to shield, there is extremely strong Electro Magnetic Compatibility and antijamming capability, and be furnished with unique antenna gate suppression undesired signal technology, almost can remove spatial electromagnetic interference completely, realize the on-line temperature monitoring under strong interference environment, the insulating property of existing equipment are not affected after installation, thus the on-line real time monitoring in the totally enclosed type spaces such as GIS device, the parts such as the such as high-pressure conductor of device interior being carried out to temperature is adapted at.
General SAW device mainly comprises the structures such as piezoelectric substrate, interdigital transducer (IDT) and reflecting grating.Wherein IDT is a kind of for exciting the acoustical-electrical transducer of SAW on piezoelectric substrate, is the core texture of SAW device.Piezoelectric substrate arranges pair of parallel metal electrode by planar semiconductor process cycle and can form IDT, when adding alternating voltage at IDT two ends, the surface of the piezoelectric substrate of meeting below IDT and the space of near surface produce alternating electric field, and produce corresponding elastic deformation by inverse piezoelectric effect on piezoelectric substrate surface, thus excite SAW.
According to Chinese scholars to SAW device years of researches, different piezoelectric is different to the susceptibility of temperature, by selecting suitable piezoelectric substrate materials and crystal cut type, the high and temperature frequency characteristic SAW temperature sensor linearly of temperature control can be obtained.According to the distribution mode of device architecture, SAW temperature sensor can be divided into delay line type and mode of resonance two kinds.Wherein in the SAW temperature sensor of delay line type, reflecting grating is only in the one-sided appearance of IDT, when ambient temperature changes, the SAW velocity of propagation that on piezoelectric substrate, IDT excites can change, there is time delay or phase place change in the echoed signal making pumping signal and return through reflecting grating, therefore can obtain temperature information by the time delay of detection signal or phase differential.And in mode of resonance SAW temperature sensor, reflecting grating is symmetrically distributed in the both sides of IDT, when the frequency of the SAW that IDT excites is mated with the size of reflecting grating array, SAW can form Zhu Bo through the roundtrip of reflective array, reach resonant condition, this resonance frequency is determined by the interdigital spacing of interdigital transducer and the velocity of propagation of SAW.When ambient temperature changes, the SAW velocity of propagation that on piezoelectric substrate, IDT excites can change, the resonance frequency of SAW temperature sensor is caused to change, can obtain temperature information by the resonance frequency change detecting SAW temperature sensor, therefore SAW temperature sensor is also referred to as SAW resonator.
In recent years, surface acoustic wave (Surface Acoustic Wave, being called for short SAW) research and apply of technology is quite ripe and extensive, but the device that employing passive wireless technologies real up to now carries out on-line monitoring to GIS device internal high voltage conductor temperature at home and abroad not yet occurs in power industry.
Utility model content
The purpose of this utility model is to provide the on-line monitoring system of the GIS internal bus running temperature based on surface acoustic wave techniques, this system makes full use of the high sensitivity of surface acoustic wave techniques, low-power consumption, zero-emission, the feature such as non-maintaining, under the prerequisite ensureing GIS built-in electrical insulation performance, realize the on-line monitoring of GIS built-in electrical insulation switch running temperature.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions: based on the on-line monitoring system of the GIS internal bus running temperature of surface acoustic wave techniques, it is characterized in that: this system comprises collector and SAW temperature sensor, described collector is arranged on the shell of gas-insulated switch, bus is built in the shell of gas-insulated switch, described SAW temperature sensor is the temperature sensor of passive and wireless, described SAW temperature sensor is arranged on the contact place of bus, described collector is used for launching the pumping signal of radio frequency signal as SAW temperature sensor to described SAW temperature sensor, the temperature at the contact place of the bus that described SAW temperature sensor excites rear sensing to contact with it, launch the resonance signal corresponding with sensed temperature simultaneously, return to described collector, after described collector receives this resonance signal returned, temperature value can be obtained by the frequency measuring this resonance signal, this temperature value is the temperature value at the contact place of bus, for current temperature value when bus runs, thus judge whether bus occurs superheating phenomenon.
In the utility model, the contact place of described bus is coated with one deck heat-conducting silicone grease, to increase the contact area of SAW temperature sensor, improves heat transfer efficiency.
In the utility model, described heat-conducting silicone grease adopts high heat conductive insulating organosilicon material, can keep fat state at the temperature of-50 DEG C ~+230 DEG C.
In the utility model, described SAW temperature sensor comprises antenna, interdigital transducer, reverberator and piezoelectric substrate, antenna, interdigital transducer and reverberator are all integrated on piezoelectric substrate, described reverberator is two, in left, right shape distribution, described piezoelectric substrate is arranged on the contact place of bus, contact place that is direct and bus is affixed close contact, described antenna launches for receiving described collector the radio frequency signal of coming, by the inverse piezoelectric effect of interdigital transducer at piezoelectric substrate surface activation surface acoustic wave, this surface acoustic wave is propagated along piezoelectric substrate, described resonance signal is formed by two periodic reflector reflects, there is corresponding relation in the frequency of resonance and the temperature of piezoelectric substrate, surface acoustic wave is transformed into the resonance signal output of response by described interdigital transducer by piezoelectric effect, the resonance signal exported is received by described collector.
Compared with prior art, the utility model has following remarkable result:
(1) the utility model adopts collector and SAW temperature sensor to carry out the on-line monitoring of electric system GIS internal bus running temperature, without the need to power supply, there is not power supply and battery altering problem, there is high sensitivity, low-power consumption, zero-emission, the feature such as non-maintaining, meet the requirement of GIS to on-line monitoring equipment preferably.
(2) SAW temperature sensor of the present utility model adopts hermetically sealed Multicarity to shield design, there is extremely strong Electro Magnetic Compatibility and antijamming capability, and be furnished with unique antenna gate suppression undesired signal technology, almost can remove spatial electromagnetic interference completely, realize the on-line temperature monitoring under strong interference environment, do not affect the insulating property of existing equipment after installation, under the prerequisite ensureing GIS built-in electrical insulation performance, realize the on-line monitoring of GIS internal bus running temperature.
(3) the utility model is real time on-line monitoring, effectively can prevent electric system GIS device internal fault, avoids occurring large accident, cost-saving, also effectively preventing because install the potential safety hazard produced simultaneously, without the need to destroying GIS structure, not affecting GIS performance.
(4) the utility model is that the on-line monitoring of electric system GIS internal bus running temperature provides reliable and effective means, ensure that the safe operation of electrical network, has market application foreground widely.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the using state reference diagram of the utility model on-line monitoring system;
Fig. 2 is the structural representation of SAW temperature sensor in the utility model on-line monitoring system;
Fig. 3 is the temperature value measured by the utility model on-line monitoring system, and wherein horizontal ordinate represents measured temperature value, and ordinate represents the resonance frequency of SAW temperature sensor, and this resonance frequency is exactly the resonance signal that collector gathers.
Description of reference numerals
1, collector; 2, SAW temperature sensor; 21, antenna; 22, interdigital transducer;
23, reverberator; 24, piezoelectric substrate; 3, bus; 4, shell
Embodiment
As Fig. 1, the on-line monitoring system of the GIS internal bus running temperature based on surface acoustic wave techniques shown in Fig. 2, this system comprises collector 1 and SAW temperature sensor 2, the WPTM-RR-SC collector that collector 1 adopts Chengdu Sai Kang Science and Technology Ltd. to produce, the frequency range of collector is 429 ~ 436MHz, SAW temperature sensor 2 is also that Chengdu Sai Kang Science and Technology Ltd. produces, the frequency range of SAW temperature sensor is respectively 429MHz, 431MHz, 432MHz, 433MHz, 435MHz, 436MHz six, collector 1 is arranged on the shell 4 of gas-insulated switch, bus 3 is built in the shell 4 of gas-insulated switch, SAW temperature sensor 2 is the temperature sensor of passive and wireless, SAW temperature sensor 2 is arranged on the contact place of bus 3.
The radio frequency signal pumping signal as SAW temperature sensor 2 of collector 1 for SAW temperature sensor 2 transmit frequency band being 429 ~ 436MHz, the temperature at the contact place of the bus 3 that SAW temperature sensor 2 excites rear sensing to contact with it, launch the resonance signal corresponding with sensed temperature simultaneously, return to collector 1, after collector 1 receives this resonance signal returned, temperature value can be obtained by the frequency measuring this resonance signal, this temperature value is the temperature value at the contact place of bus 3, for current temperature value when bus 3 runs, thus judge whether bus 3 occurs superheating phenomenon.
As shown in Figure 2, SAW temperature sensor 2 in the present embodiment comprises antenna 21, interdigital transducer 22, reverberator 23 and piezoelectric substrate 24, antenna 21, interdigital transducer 22 and reverberator 23 are all integrated on piezoelectric substrate 24, reverberator 23 is two, in left, right shape distribution, piezoelectric substrate 24 is arranged on the contact place of bus 3, contact place that is direct and bus 3 is affixed close contact, antenna 21 launches for receiving collector 1 the radio frequency signal of coming, by the inverse piezoelectric effect of interdigital transducer 22 at piezoelectric substrate 24 surface activation surface acoustic wave, this surface acoustic wave is propagated along piezoelectric substrate 24, resonance is reflected to form by two periodic reverberators 23, there is corresponding relation in the frequency of resonance and the temperature of piezoelectric substrate 24, surface acoustic wave is transformed into the resonance signal output of response by interdigital transducer 22 by piezoelectric effect, the collected device 1 of resonance signal exported receives, namely the resonance signal that collector 1 receives is the resonance signal that SAW temperature sensor 2 emits.
Principle of work and the course of work of the present embodiment are as follows: collector 1 launches the pumping signal of radio frequency signal as SAW temperature sensor 2 to SAW temperature sensor 2, excite SAW temperature sensor 2 to work.The radio frequency signal that collector 1 is launched is the sinusoidal interrupted wae between 429MHz ~ 436MHz, the antenna 21 of SAW temperature sensor 2 receives this radio frequency signal, by the inverse piezoelectric effect of interdigital transducer 22 at piezoelectric substrate 24 surface activation surface acoustic wave.Surface acoustic wave is propagated along piezoelectric substrate 24, and reflected to form resonance signal by two, left and right periodic reflective device 23, this resonance frequency is relevant with the temperature of piezoelectric substrate 24.
Surface acoustic wave is transformed into the resonance signal output of response by interdigital transducer 22 by piezoelectric effect.The collected device 1 of the resonance signal returned receives, and can obtain temperature value by the frequency measuring resonance, the temperature value obtained is the temperature value at the contact place of bus, and the temperature value of usual bus contact is overheated more than 125 DEG C.
Excite SAW temperature sensor work by collector 1 in the present embodiment, and obtain the resonance frequency of SAW temperature sensor by collector 1, its process is as follows:
1. collector sends pumping signal to SAW temperature sensor;
2.SAW temperature sensor produces resonance;
3.SAW temperature sensor resonance frequency passes collector back by echoed signal;
4. the resonance frequency of collector by returning, obtain temperature value, this temperature value is the temperature value at the contact place of bus.
As shown in Figure 3, not there is superheating phenomenon in measurement result display bus to the measurement result of the present embodiment.
The SAW temperature sensor frequency of operation that native system adopts is between 429MHz-436MHz, and native system adopts sinusoidal signal as pumping signal, utilizes the mode of resonant excitation to obtain sensor information.The course of work of system is divided into two cycles: in the transmission cycle of system, is produced the interval sinusoidal signal of a certain frequency by back-end processing system control READER, is gone out after amplifying after filtering by aerial radiation; After the signal given off is received by SAW temperature sensor, be converted to frequency SAW through inverse piezoelectric effect.At the receiving cycle of system, the echoed signal that back-end processing system control READER is returned by antenna reception SAW temperature sensor, is converted to digital signal after amplifying process after filtering.According to the parameter of the result adjustment closed-loop system of signal transacting, realize automatic tracking adjustment, reach the state of resonant excitation, thus finally realize the Measurement accuracy of temperature value.
As the conversion of the present embodiment, first can carry out surface treatment to bus 3, the contact place of bus 3 is coated with one deck heat-conducting silicone grease, to increase the contact area of SAW temperature sensor 2, improves heat transfer efficiency.This heat-conducting silicone grease adopts high heat conductive insulating organosilicon material, concrete material is organic silicone is primary raw material, add the heat-conducting type organosilicon smectic compound that material that is heat-resisting, excellent thermal conductivity is made, fat state can be kept at the temperature of-50 DEG C ~+230 DEG C
Above-mentioned heat-conducting silicone grease adopts high heat conductive insulating organosilicon material, can keep fat state at the temperature of-50 DEG C ~+230 DEG C.
In the utility model, the installation site of SAW temperature sensor 2 is determined according to the feasibility of the distribution of electric system GIS internal high voltage conductor temperature variation and installation, generally be arranged on the maximum temperature place of high-pressure conductor, such as, switch contact place is arranged on for disconnector, isolating switch is then arranged on the high pressure guide rod outside radome, and bus then mount pad, at bus contact place, thus realizes monitoring to high-pressure conductor maximum temperature value.SAW temperature sensor 2 structure and the distribution of anti-electromagnetic interference capability design consideration GIS inner space electromagnetic interference signal, sensor internal cavity body structure feature and collector antenna gate suppress the transmission rule of undesired signal to design.The emissive power of collector carries out emissive power adjustment, to compensate the absorption effect of SF6 gas for monitor signal according to the isolating switch of SF6 gaseous tension different in GIS device, disconnector, bus interval.
Above-described embodiment of the present utility model is not the restriction to the utility model protection domain; embodiment of the present utility model is not limited thereto; all this kind is according to foregoing of the present utility model; according to ordinary technical knowledge and the customary means of this area; do not departing under the utility model above-mentioned basic fundamental thought prerequisite; to the amendment of other various ways that the utility model said structure is made, replacement or change, all should drop within protection domain of the present utility model.
Claims (4)
1. based on the on-line monitoring system of the GIS internal bus running temperature of surface acoustic wave techniques, it is characterized in that: this system comprises collector and SAW temperature sensor, described collector is arranged on the shell of gas-insulated switch, bus is built in the shell of gas-insulated switch, described SAW temperature sensor is the temperature sensor of passive and wireless, described SAW temperature sensor is arranged on the contact place of bus, described collector is used for launching the pumping signal of radio frequency signal as SAW temperature sensor to described SAW temperature sensor, the temperature at the contact place of the bus that described SAW temperature sensor excites rear sensing to contact with it, launch the resonance signal corresponding with sensed temperature simultaneously, return to described collector, after described collector receives this resonance signal returned, temperature value can be obtained by the frequency measuring this resonance signal, this temperature value is the temperature value at the contact place of bus, for current temperature value when bus runs, thus judge whether bus occurs superheating phenomenon.
2. the on-line monitoring system of the GIS internal bus running temperature based on surface acoustic wave techniques according to claim 1, it is characterized in that: the contact place of described bus is coated with one deck heat-conducting silicone grease, to increase the contact area of SAW temperature sensor, improve heat transfer efficiency.
3. the on-line monitoring system of the GIS internal bus running temperature based on surface acoustic wave techniques according to claim 2, it is characterized in that: described heat-conducting silicone grease adopts high heat conductive insulating organosilicon material, can keep fat state at the temperature of-50 DEG C ~+230 DEG C.
4. the on-line monitoring system of the GIS internal bus running temperature based on surface acoustic wave techniques according to any one of claims 1 to 3, it is characterized in that: described SAW temperature sensor comprises antenna, interdigital transducer, reverberator and piezoelectric substrate, antenna, interdigital transducer and reverberator are all integrated on piezoelectric substrate, described reverberator is two, in left, right shape distribution, described piezoelectric substrate is arranged on the contact place of bus, contact place that is direct and bus is affixed close contact, described antenna launches for receiving described collector the radio frequency signal of coming, by the inverse piezoelectric effect of interdigital transducer at piezoelectric substrate surface activation surface acoustic wave, this surface acoustic wave is propagated along piezoelectric substrate, described resonance signal is formed by two periodic reflector reflects, there is corresponding relation in the frequency of resonance and the temperature of piezoelectric substrate, surface acoustic wave is transformed into the resonance signal output of response by described interdigital transducer by piezoelectric effect, the resonance signal exported is received by described collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775535.1U CN204359457U (en) | 2014-12-10 | 2014-12-10 | Based on the on-line monitoring system of the GIS internal bus running temperature of surface acoustic wave techniques |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775535.1U CN204359457U (en) | 2014-12-10 | 2014-12-10 | Based on the on-line monitoring system of the GIS internal bus running temperature of surface acoustic wave techniques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204359457U true CN204359457U (en) | 2015-05-27 |
Family
ID=53260921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420775535.1U Expired - Fee Related CN204359457U (en) | 2014-12-10 | 2014-12-10 | Based on the on-line monitoring system of the GIS internal bus running temperature of surface acoustic wave techniques |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204359457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458053A (en) * | 2014-12-10 | 2015-03-25 | 广东电网有限责任公司电力科学研究院 | GIS internal bus operating temperature online monitoring system and method based on acoustic surface wave technology |
| CN105571743A (en) * | 2016-02-24 | 2016-05-11 | 南京科睿博电气科技有限公司 | Surface acoustic wave technology-based switch cabinet temperature measurement interference shielding apparatus |
-
2014
- 2014-12-10 CN CN201420775535.1U patent/CN204359457U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458053A (en) * | 2014-12-10 | 2015-03-25 | 广东电网有限责任公司电力科学研究院 | GIS internal bus operating temperature online monitoring system and method based on acoustic surface wave technology |
| CN105571743A (en) * | 2016-02-24 | 2016-05-11 | 南京科睿博电气科技有限公司 | Surface acoustic wave technology-based switch cabinet temperature measurement interference shielding apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104406710A (en) | SAW (Surface Acoustic Wave)-technology-based online monitoring system and monitoring method for running temperature of isolation switch in GIS | |
| CN103868618B (en) | System for detecting temperature based on multisensor identification | |
| CN104458053A (en) | GIS internal bus operating temperature online monitoring system and method based on acoustic surface wave technology | |
| CN204359456U (en) | Based on the on-line monitoring system of the GIS internal breaker running temperature of surface acoustic wave techniques | |
| CN103868620B (en) | For sensor and the system thereof of power equipment long distance passive wireless temperature monitoring | |
| CN203672515U (en) | Passive wireless type on-line temperature measurement system | |
| CN204359457U (en) | Based on the on-line monitoring system of the GIS internal bus running temperature of surface acoustic wave techniques | |
| CN204359455U (en) | Based on the on-line monitoring system of the GIS internal isolating switch running temperature of surface acoustic wave techniques | |
| CN103424675A (en) | Ultrahigh frequency antenna array partial discharge detection system | |
| CN103868621A (en) | Electrical equipment remote passive wireless temperature monitoring system and method | |
| CN204286617U (en) | For the contact arm of isolating switch or contactor | |
| CN104897294A (en) | Rotary wireless passive temperature sensing system | |
| CN110736563A (en) | Passive wireless temperature sensor suitable for distribution temperature monitoring early warning system | |
| CN202887225U (en) | Reader-writer of acoustic surface wave wireless passive sensor system | |
| CN104406711A (en) | SAW (Surface Acoustic Wave)-technology-based online monitoring system and monitoring method for running temperature of circuit breaker in GIS | |
| CN208171471U (en) | A kind of cable bulkhead temperature transducer | |
| CN103884447A (en) | SAW sensing method based on combination of code division multiple access and OFC coding | |
| CN208171470U (en) | A kind of cable bulkhead temperature transducer of calibration-free | |
| CN203551144U (en) | Probe of fiber grating temperature sensor | |
| CN203011573U (en) | Device utilizing surface acoustic wave sensor for measuring inner temperature of GIS device | |
| CN108645533A (en) | GIS contact temperatures monitoring system based on surface acoustic wave techniques and monitoring method | |
| Zhang et al. | A rectangular planar spiral antenna for GIS partial discharge detection | |
| CN205843840U (en) | A kind of multi-chip differential type SAW temperature sensor | |
| CN208458893U (en) | GIS contact temperature based on surface acoustic wave techniques monitors system | |
| CN103868619B (en) | The temperature detection sensor system of transmission line-oriented |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |