CN203798467U - Transformer lead wire joint operating temperature measuring device based on surface acoustic wave - Google Patents
Transformer lead wire joint operating temperature measuring device based on surface acoustic wave Download PDFInfo
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- CN203798467U CN203798467U CN201420203964.1U CN201420203964U CN203798467U CN 203798467 U CN203798467 U CN 203798467U CN 201420203964 U CN201420203964 U CN 201420203964U CN 203798467 U CN203798467 U CN 203798467U
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- saw
- temperature sensor
- frequency signal
- radiofrequency signal
- radio frequency
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- 238000010897 surface acoustic wave method Methods 0.000 title claims abstract description 27
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000034 method Methods 0.000 claims description 11
- 238000009529 body temperature measurement Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000001931 thermography Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a transformer lead wire joint operating temperature measuring device based on surface acoustic wave and is characterized by comprising an SAW temperature sensor installed on a connector of a lead wire of a transformer and a temperature collection processor installed on a far end. The SAW temperature sensor is connected to the temperature collection processor through a wireless radio frequency mode. The SAW temperature sensor is installed on the connector of the lead wire of the transformer and the SAW sensor technology and the wireless communication technology are adopted for signal transmission and voltage isolation. The problem that the infrared thermal imaging is performed at night and needs big load and lots of time to test is solved by utilizing the intrinsic insulativity and a capability of resisting electromagnetic field interference , the measurement accuracy and measurement efficiency are improved, the times of equipment maintenance are reduced, and the installation and maintenance cost are reduced.
Description
Technical field
The utility model belongs to power transformer technical field, especially a kind of transformer lead joint running temperature measurement mechanism based on surface acoustic wave.
Background technology
In the operational process of transformer, often there will be because the loose contact of transformer lead joint causes overheated phenomenon.If find in time to connect transformer lead conductor joint heating situation, can effectively avoid having an accident, the stable operation of support equipment.At present, the comparatively conventional method of transformer lead joint thermometric is to utilize the method for infrared thermal imaging to measure, infrared measurement of temperature method is subject to environment and the interference of electromagnetic field around, the distance of testee and the stricter requirement that takes measurement of an angle, therefore, infrared thermal imaging measuring method effect is by day poor, lower to the collecting efficiency of temperature value.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and tests accurately, efficiency is high and the transformer lead joint running temperature measurement mechanism based on surface acoustic wave that is easy to install and use.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of transformer lead joint running temperature measurement mechanism based on surface acoustic wave, comprise the SAW temperature sensor being arranged on transformer lead joint and the temperature acquisition treating apparatus that is arranged on far-end, described SAW temperature sensor is connected with temperature acquisition treating apparatus by wireless radio frequency mode.
And, described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, this master controller is connected with transmit-receive switch by transceiver controller, and described transmit-receive switch receives the radiofrequency signal of SAW temperature sensor under the control of master controller, described radio-frequency signal generator produces radiofrequency signal and is connected respectively on radio frequency signal amplifiers and detuner, this radio frequency signal amplifiers is connected with transmit-receive switch, described transmit-receive switch exports in amplifier after the radiofrequency signal of the radiofrequency signal of SAW temperature sensor and radio frequency signal amplifiers output is processed, the radiofrequency signal that this amplifier output is amplified is to detuner, this detuner carries out being transferred to master controller after demodulation process to the radiofrequency signal of the radiofrequency signal of amplifier and radio-frequency signal generator generation, master controller shows and stores processor the temperature data receiving.
Advantage of the present utility model and good effect are:
1, this measurement mechanism adopts surface acoustic wave (SAW) sensing technology and wireless communication technique to carry out signal transmission and high pressure isolation, utilize its intrinsic insulativity and anti-electromagnetic field jamming performance, fundamentally solved transformer lead connector temperature and measured out of true, a difficult problem that temperature parameter collecting efficiency is low, improved measuring accuracy and measured efficiency.
2, this measurement mechanism is arranged on SAW temperature sensor on transformer lead joint, partly isolates with transformer high-voltage, guarantees thermometric work safety and reliability.
3, this measurement mechanism adopts the problem that SAW temperature sensor carries out temperature acquisition and transmission, has solved the problem that infrared thermal imaging method need to be tested in night, large duration of load application.
3, the SAW SAW Temperature Sensors of this measurement mechanism is passive, wireless device, is convenient to I&M, has reduced maintenance of equipment number of times, has reduced I&M cost.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described:
A kind of transformer lead joint running temperature measurement mechanism based on surface acoustic wave, as shown in Figure 1, comprise the SAW temperature sensor being arranged on transformer lead joint and the temperature acquisition treating apparatus that is arranged on far-end, described SAW temperature sensor is connected with temperature acquisition treating apparatus by wireless radio frequency mode and carries out data transmission.Described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, described master controller is connected with transceiver controller, this transceiver controller is connected with transmit-receive switch, and master controller is controlled transmit-receive switch by transceiver controller and carried out work and receive the temperature data that SAW temperature sensor gathers.Described radio-frequency signal generator produces radiofrequency signal and is connected with detuner with radio frequency signal amplifiers respectively, described radio frequency signal amplifiers is connected and provides radio-frequency signal source for it with transmit-receive switch, described transmit-receive switch exports in amplifier after the radiofrequency signal of the radiofrequency signal of SAW temperature sensor and radio frequency signal amplifiers output is processed, this amplifier amplifies and processes and export the radiofrequency signal after amplifying to detuner the radiofrequency signal receiving, this detuner carries out being transferred to master controller after demodulation process to the radiofrequency signal of the radiofrequency signal of amplifier and radio-frequency signal generator generation, by master controller, the temperature data receiving is shown and the processing such as storage, thereby realize the temperature measurement function to transformer lead joint.
Principle of work of the present utility model: SAW temperature sensor is passive type induction mode, without battery-operated, SAW temperature sensor can arrive emission of radio frequency signals the surface of piezoelectric, then the reflection wave that is subject to temperature and has affected is gone back to electric signal again and obtains temperature data, SAW temperature sensor is transferred to temperature acquisition treating apparatus by the temperature data of collection by RF-wise, thereby has realized the temperature measurement function to transformer lead joint.The utility model adopts surface acoustic wave techniques, takes full advantage of the passive principle of work of sensor, and under unconventional running environment, (high voltage, high electric current) realizes wireless temperature data acquisition function.
It is emphasized that; embodiment described in the utility model is illustrative; rather than determinate; therefore the utility model comprises and is not limited to the embodiment described in embodiment; every other embodiments that drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope that the utility model is protected equally.
Claims (2)
1. the transformer lead joint running temperature measurement mechanism based on surface acoustic wave, it is characterized in that: comprise the SAW temperature sensor being arranged on transformer lead joint and the temperature acquisition treating apparatus that is arranged on far-end, described SAW temperature sensor is connected with temperature acquisition treating apparatus by wireless radio frequency mode.
2. the transformer lead joint running temperature measurement mechanism based on surface acoustic wave according to claim 1, it is characterized in that: described temperature acquisition treating apparatus comprises master controller, transceiver controller, transmit-receive switch, amplifier, detuner, radio-frequency signal generator and radio frequency signal amplifiers, this master controller is connected with transmit-receive switch by transceiver controller, and described transmit-receive switch receives the radiofrequency signal of SAW temperature sensor under the control of master controller, described radio-frequency signal generator produces radiofrequency signal and is connected respectively on radio frequency signal amplifiers and detuner, this radio frequency signal amplifiers is connected with transmit-receive switch, described transmit-receive switch exports in amplifier after the radiofrequency signal of the radiofrequency signal of SAW temperature sensor and radio frequency signal amplifiers output is processed, the radiofrequency signal that this amplifier output is amplified is to detuner, this detuner carries out being transferred to master controller after demodulation process to the radiofrequency signal of the radiofrequency signal of amplifier and radio-frequency signal generator generation, master controller shows and stores processor the temperature data receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203964.1U CN203798467U (en) | 2014-04-24 | 2014-04-24 | Transformer lead wire joint operating temperature measuring device based on surface acoustic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203964.1U CN203798467U (en) | 2014-04-24 | 2014-04-24 | Transformer lead wire joint operating temperature measuring device based on surface acoustic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798467U true CN203798467U (en) | 2014-08-27 |
Family
ID=51380672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203964.1U Expired - Fee Related CN203798467U (en) | 2014-04-24 | 2014-04-24 | Transformer lead wire joint operating temperature measuring device based on surface acoustic wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798467U (en) |
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2014
- 2014-04-24 CN CN201420203964.1U patent/CN203798467U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: State Grid Corporation of China Patentee after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: State Grid Tianjin Electric Power Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20180424 |