CN103162864A - Optical fiber temperature measuring system of electrical cabinet - Google Patents
Optical fiber temperature measuring system of electrical cabinet Download PDFInfo
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- CN103162864A CN103162864A CN201110417697.9A CN201110417697A CN103162864A CN 103162864 A CN103162864 A CN 103162864A CN 201110417697 A CN201110417697 A CN 201110417697A CN 103162864 A CN103162864 A CN 103162864A
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- electrical part
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Abstract
The invention discloses an optical fiber temperature measuring system of an electrical cabinet. The optical fiber temperature measuring system of the electrical cabinet comprises an electrical cabinet body. An electric device A, an electric device B, an electric device C, an electric device D, an electric device E and an electric device F are arranged inside the electrical cabinet body, wherein the electric device A, the electric device B, the electric device C, the electric device D, the electric device E and the electric device F are connected with an optical fiber terminal box through after optical fiber are mutually connected in series. The optical fiber terminal box is connected with a temperature measuring main machine. The temperature measuring main machine is connected with a terminal machine. The change of the temperature of the electric devices can be monitored by temperature sensing optical fibers coated on the electric devices. The temperature of the electric devices can be led in the temperature measuring main machine by the temperature sensing optical fibers through optical fiber. Temperature signals can be transmitted to the terminal machine through an optical fiber temperature information collecting module and a photovoltaic conversion module which are arranged inside the temperature measuring main machine. Software on the terminal machine can be used for displaying a temperature variation curve, so the optical fiber temperature measuring system of the electrical cabinet has the advantages of being corrosion resisting, high-temperature resisting, moisture resistant and long in service life.
Description
Technical field
The present invention relates to a kind of optical fiber temperature measurement system, particularly relate to a kind of optical fiber temperature measurement system of Electric Appliance Cabinet.
Background technology
At present, in many instances, temperature has become very crucial factor, and the variation of many physical characteristicss all directly is reflected in the variation of temperature, and is therefore significant to the monitoring of temperature.Along with the development of optical fiber temperature-measurement application technology, make it become at present most advanced, the most effective continuous distribution formula temperature monitoring system in the world.A lot of fields have been applied in, as Space, Place (as subway, tunnel, bridge etc.), petrochemical industry (as monitoring of leakage of the fluid-transporting tubing of oil transportation, gas pipe line, chemical enterprise etc.) and electric device (temperature monitoring and the fire alarm of the electric power facility such as defeated in high pressure, distribution cable, high-voltage transforming cabinet).The present invention utilizes anti-flaming, explosion-proof, anticorrosive, the anti-electromagnetic interference (EMI) of optical fiber, and the advantage such as response to temperature is strong, apply it in a kind of space temperature monitoring of Electric Appliance Cabinet, can realize multi-point temperature measurement and location real-time, tracking and monitoring is carried out in insulation to operating electrical part equipment, early and in time the potential faults of discovering device inside, in order to adopt an effective measure, prevent device damage in order to avoid cause more major break down and loss.
Summary of the invention
For the problem that prior art exists, the purpose of this invention is to provide a kind of optical fiber temperature measurement system of Electric Appliance Cabinet, have corrosion-resistant, high temperature resistant, humidity and long characteristic of life-span.
To achieve these goals, the technical solution used in the present invention is: a kind of optical fiber temperature measurement system of Electric Appliance Cabinet, include electric appliance cabinet box, be provided with electrical part A, electrical part B, electrical part C, electrical part D, electrical part E, electrical part F in electric appliance cabinet box, electrical part A, electrical part B, electrical part C, electrical part D, electrical part E, electrical part F are connected with optical fiber terminal box after mutually connecting by optical fiber, optical fiber terminal box is connected with the thermometric main frame, and the thermometric main frame is connected with terminating machine again.
Described temperature sensing optical fiber dish overlays on electrical part A, electrical part B, electrical part C, electrical part D, electrical part E, electrical part F, and adopts silica gel sticking.
Described thermometric main frame main devices comprises pulsed laser, wavelength division multiplexer, photodetector, ARM microprocessor and data acquisition module, pulsed laser be connected with wavelength division multiplexer again after the ARM microprocessor is connected, wavelength division multiplexer is connected with temperature sensing optical fiber, wavelength division multiplexer also be connected, photodetector, ARM microprocessor all are connected with terminating machine by data acquisition.
This temp measuring system is used for measuring in real time the optical fiber sensing system of the space temperature field distribution of Electric Appliance Cabinet device, when utilizing high power pulse to transmit in optical fiber, due to the impact such as the microcosmic of the refractive index random variation of optical fiber and fibre core is unbalanced, can produce the phenomenon of Raman scattering, according to measurement and the time-domain analysis of Raman scattering light signal dorsad, carry out monitoring and the location of temperature.Wherein said temperature sensing optical fiber dish overlays on each monitor temperature device, and it is surperficial to adopt silica gel to be bonded at the device thermometric.Be connected with optical fiber terminal box between described temperature sensing optical fiber and thermometric main frame.Described thermometric main frame main devices comprises pulsed laser module, wavelength division multiplexer assembly, photodetector, ARM microprocessor and data acquisition module etc.Pulsed laser module wherein and wavelength division multiplexer assembly are mainly used in the collection of fiber optic temperature field information; Photodetector wherein comprises APD avalanche photodide module, reaches signal amplification conditioning module, it is mainly completed and converts light signal to voltage signal and it is sampled by high-speed A/D converter by after amplifying, and obtains the intensity data signal of anti-Stokes light Anti-Stokes Raman diffused light and stokes light Stokes Raman diffused light; Arm processor is wherein mainly completed the control of paired pulses laser instrument and the processing of data acquisition.The data-signal that described terminating machine is mainly completed receiving further accesses the temperature information of whole section optical fiber through the excess temperature demodulation software, and the temperature curve of the whole monitoring of demonstration on this terminating machine, and warning message, it with the thermometric main frame between be connected by RS-232 interface.
The invention has the beneficial effects as follows:
Characteristics according to temperature sensing optical fiber: temperature sensing optical fiber has very strong anti-emi characteristics, can work normally in high electromagnetic environment and vibration environment; Fibre Optical Sensor is due to electrical isolation completely, can be anti-lightning strike, the impact of opposing high voltage and high electric current; Far measuring distance is suitable for remote monitoring; Flexibility ratio is high, measuring accuracy is high, and spatial positioning accuracy reaches the order of magnitude of 1m;
That optical fiber has is corrosion-resistant, high temperature resistant, humidity and long characteristic of life-span, usually can use decades etc., can learn that thus it is practical, Monitoring Data is accurate, is suitable for the Real-Time Monitoring of the spatial temperature distribution of Electric Appliance Cabinet.
Description of drawings
Fig. 1 is structural representation figure of the present invention.
Fig. 2 is the inner principle schematic of thermometric main frame of the present invention.
Embodiment
With reference to Fig. 1, a kind of optical fiber temperature measurement system of Electric Appliance Cabinet, include electric appliance cabinet box 1, be provided with electrical part A2, electrical part B7, electrical part C8, electrical part D9, electrical part E10, electrical part F11 in electric appliance cabinet box 1, electrical part A2, electrical part B7, electrical part C8, electrical part D9, electrical part E10, electrical part F11 are connected with optical fiber terminal box 4 after mutually connecting by optical fiber, optical fiber terminal box 4 is connected with thermometric main frame 5, and thermometric main frame 5 is connected with terminating machine 6 again.Described thermometric main frame 5 is mainly completed the collection of fiber optic temperature information and opto-electronic conversion is processed.The data-signal that described terminating machine is mainly completed receiving further accesses the temperature information of whole section optical fiber through the excess temperature demodulation software, and the temperature curve of the whole monitoring of demonstration on this terminating machine, and warning message, it with the thermometric main frame between be connected by RS-232 interface.
Described temperature sensing optical fiber dish overlays on electrical part A2, electrical part B7, electrical part C8, electrical part D9, electrical part E10, electrical part F11, and adopts silica gel sticking.
Referring to Fig. 2, described thermometric main frame 5 main devices comprise pulsed laser, wavelength division multiplexer, photodetector, ARM microprocessor and data acquisition module, pulsed laser be connected with wavelength division multiplexer again after the ARM microprocessor is connected, wavelength division multiplexer is connected with temperature sensing optical fiber, wavelength division multiplexer also be connected, photodetector, ARM microprocessor all are connected with terminating machine by data acquisition.
Pulsed laser module wherein and wavelength division multiplexer assembly are mainly used in the collection of fiber optic temperature field information; Photodetector wherein comprises APD avalanche photodide module, reaches signal amplification conditioning module, it is mainly completed and converts light signal to voltage signal and it is sampled by high-speed A/D converter by after amplifying, and obtains the intensity data signal of Anti-Stokes Raman diffused light and Stokes Raman diffused light; Arm processor is wherein mainly completed the control of paired pulses laser instrument and the processing of data acquisition.
This temp measuring system is used for measuring in real time the optical fiber sensing system of the space temperature field distribution of Electric Appliance Cabinet device, when utilizing high power pulse to transmit in optical fiber, due to the impact such as the microcosmic of the refractive index random variation of optical fiber and fibre core is unbalanced, can produce the phenomenon of Raman scattering, according to measurement and the time-domain analysis of Raman scattering light signal dorsad, carry out monitoring and the location of temperature.
Claims (3)
1. the optical fiber temperature measurement system of an Electric Appliance Cabinet, include electric appliance cabinet box (1), it is characterized in that, electric appliance cabinet box is provided with electrical part A(2 in (1)), electrical part B(7), electrical part C(8), electrical part D(9), electrical part E(10), electrical part F(11), electrical part A(2), electrical part B (7), electrical part C (8), electrical part D (9), electrical part E (10), electrical part F (11) is connected with optical fiber terminal box (4) after mutually connecting by optical fiber, optical fiber terminal box (4) is connected with thermometric main frame (5), thermometric main frame (5) is connected with terminating machine (6) again.
2. the optical fiber temperature measurement system of a kind of Electric Appliance Cabinet according to claim 1, it is characterized in that, described temperature sensing optical fiber dish overlays on electrical part A (2), electrical part B (7), electrical part C (8), electrical part D (9), electrical part E (10), electrical part F (11), and adopts silica gel sticking.
3. the optical fiber temperature measurement system of a kind of Electric Appliance Cabinet according to claim 1, it is characterized in that, described thermometric main frame (5) main devices comprises pulsed laser, wavelength division multiplexer, photodetector, ARM microprocessor and data acquisition module, pulsed laser be connected with wavelength division multiplexer again after the ARM microprocessor is connected, wavelength division multiplexer is connected with temperature sensing optical fiber, wavelength division multiplexer also be connected, photodetector, ARM microprocessor all are connected with terminating machine by data acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110417697.9A CN103162864A (en) | 2011-12-14 | 2011-12-14 | Optical fiber temperature measuring system of electrical cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110417697.9A CN103162864A (en) | 2011-12-14 | 2011-12-14 | Optical fiber temperature measuring system of electrical cabinet |
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| Publication Number | Publication Date |
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| CN103162864A true CN103162864A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110417697.9A Pending CN103162864A (en) | 2011-12-14 | 2011-12-14 | Optical fiber temperature measuring system of electrical cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197743A (en) * | 2016-08-31 | 2016-12-07 | 辽宁宏成电力股份有限公司 | The brillouin distributed fiber optic temperature measurement system of High-low voltage switch cabinet and method |
-
2011
- 2011-12-14 CN CN201110417697.9A patent/CN103162864A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197743A (en) * | 2016-08-31 | 2016-12-07 | 辽宁宏成电力股份有限公司 | The brillouin distributed fiber optic temperature measurement system of High-low voltage switch cabinet and method |
| CN106197743B (en) * | 2016-08-31 | 2018-08-31 | 辽宁宏成电力股份有限公司 | The brillouin distributed fiber optic temperature measurement system of high and low voltage switchgear and method |
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Application publication date: 20130619 |