CN203274953U - Temperature sensor system of 1*2 optical fiber - Google Patents
Temperature sensor system of 1*2 optical fiber Download PDFInfo
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- CN203274953U CN203274953U CN201320289945.0U CN201320289945U CN203274953U CN 203274953 U CN203274953 U CN 203274953U CN 201320289945 U CN201320289945 U CN 201320289945U CN 203274953 U CN203274953 U CN 203274953U
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- fibre optic
- optic temperature
- temperature sensors
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Abstract
Disclosed is a temperature sensor system of a 1*2 optical fiber, and the system comprises a temperature-measurement optical fiber, a signal processor, and a central processor. The temperature-measurement optical fiber comprises two light sources, four 1*2 optical-fiber couplers, four optical-fiber temperature sensors, and two photoelectric detectors. When the temperature sensor system is in use, the two light sources light in turn and each of the two light sources drives the two corresponding optical-fiber temperature sensors to detect temperature, and obtains two temperature detection signals which respectively pass through the corresponding photoelectric detectors to enter the central processor for signal identification so as to achieve point-type positioning in favor of address identification of the temperature sensors. The two light sources are LED light sources or LD light sources. The temperature sensor system not only is good in positioning performance and is capable of stopping an electronic component from detecting temperature, but also is good in effects of light splitting or coupling, strong in signal stability and long in transmission distance.
Description
Technical field
The utility model relates to a kind of temperature sensor system, relates in particular to a kind of 1 * 2 optical fiber temperature transducer system, specifically is applicable to realize the Address Recognition of multipoint temperature measuring, temperature sensor, thereby improves treatment effeciency.
Background technology
The temperature sensor that the conventional temperature sensor system adopts is take electric signal as working foundation, and as thermopair, thermistor, pyroelectric detector etc., they have following defective:
1. because electric signal is arranged, have potential safety hazard 2. electronic devices and components are easily aging in the place inflammable and explosive, that electromagnetic radiation intensity is large, moisture-sensitive, and then the even malfunctioning 3. line-type heat detector fire locating poor performance of wrong report, 5. the actuation of an alarm temperature range is wide can not to reuse 4. the maintenance cost height, cause the low 6. linear optical fiber grating heat fire detector use cost of sensitivity and maintenance cost very high, the general user is difficult to accept 7. must be used in conjunction with expensive detection controller (being commonly called as main frame) 8. must Attended mode.
the Chinese patent Granted publication number is CN202584343U, Granted publication day is that the utility model patent on Dec 5th, 2012 discloses a kind of intelligent smog detector, comprise central control unit, described central control unit is connected with the smoke signal processing module, the processes temperature signal module, wireless transmitter module, acoustic-optic alarm, the fire extinguishing flusher, described smoke signal processing module is connected with smoke transducer, described processes temperature signal module is connected with temperature sensor, described wireless transmitter module is connected communication wirelessly with wireless receiving module, wireless receiving module is connected with the background monitoring platform, the background monitoring platform is connected with the backstage warning device.Although the generation of this utility model energy detection of fires, and remote monitoring and warning function can be provided, it still has following defective:
1. can't make Address Recognition to temperature sensor, can not in time determine the fire origination point, treatment effeciency is lower;
2. utilize electric signal to carry out temperature sensing, be unsuitable in the place inflammable and explosive, that electromagnetic radiation intensity is large installing, have certain potential safety hazard; Electronic devices and components are easily aging, and aging rear easy generation wrong report is even malfunctioning;
3. penetration capacity, the diffracting power of transmission of wireless signals in basement, buildings is very poor, cause may losing in the fire signal transmission, thereby hide some dangers for, and transmission range is limited.
Summary of the invention
The purpose of this utility model is to overcome the employing electronic devices and components detecting temperature that exists in prior art, can't make Address Recognition, signal stabilization weak defective and problem to temperature sensor, provides a kind of and stops the electronic devices and components detecting temperature, can make Address Recognition, 1 * 2 optical fiber temperature transducer system that signal stabilization is stronger to temperature sensor.
For realizing above purpose, technical solution of the present utility model is: a kind of 1 * 2 optical fiber temperature transducer system, comprise temperature measuring optical cable, signal processor and central processing unit, an end of described signal processor is connected with temperature measuring optical cable, and the other end is connected with central processing unit;
Described temperature measuring optical cable comprises a light source, No. two light sources, a fibre optic temperature sensor, No. two fibre optic temperature sensors, No. three fibre optic temperature sensors, No. four fibre optic temperature sensors, a photodetector and No. two photodetectors;
the output terminal of a described light source and a fibre optic temperature sensor, the input end of No. two fibre optic temperature sensors is connected, the output terminal of No. two light sources and No. three fibre optic temperature sensors, the input end of No. four fibre optic temperature sensors is connected, a fibre optic temperature sensor, the output terminal of No. four fibre optic temperature sensors is connected with the input end of No. two photodetectors, No. two fibre optic temperature sensors, the output terminal of No. three fibre optic temperature sensors is connected with the input end of a photodetector, a photodetector, the output terminal of No. two photodetectors is connected with an end of signal processor, the other end of signal processor is connected with an end of central processing unit.
Described temperature measuring optical cable also comprises 1 * 2 fiber coupler, No. two 1 * 2 fiber couplers, No. three 1 * 2 fiber couplers and No. four 1 * 2 fiber couplers;
The output terminal of a described light source is connected with the input end of a fibre optic temperature sensor, No. two fibre optic temperature sensors through 1 * 2 fiber coupler;
The output terminal of described No. two fibre optic temperature sensors, No. three fibre optic temperature sensors is connected with the input end of a photodetector through No. two 1 * 2 fiber couplers;
The output terminal of described No. two light sources is connected with the input end of No. three fibre optic temperature sensors, No. four fibre optic temperature sensors through No. three 1 * 2 fiber couplers;
The output terminal of a described fibre optic temperature sensor, No. four fibre optic temperature sensors is connected with the input end of No. two photodetectors through No. four 1 * 2 fiber couplers.
A described light source, No. two light sources, a fibre optic temperature sensor, No. two fibre optic temperature sensors, No. three fibre optic temperature sensors, No. four fibre optic temperature sensors, a photodetector, No. two photodetectors, 1 * 2 fiber coupler, No. two 1 * 2 fiber couplers, No. three 1 * 2 fiber couplers, No. four 1 * 2 fiber couplers adopt the communication stage optical fiber cable to connect each other.
The output terminal of a described photodetector, No. two photodetectors is connected with 485 signal wires or CAN bus after signal processor, central processing unit successively.
A described light source, No. two light sources are LED or LD light source.
Compared with prior art, the beneficial effects of the utility model are:
1, mainly comprise two light sources in a kind of 1 * 2 optical fiber temperature transducer system of the utility model, four fibre optic temperature sensors and two photodetectors, during use, two light sources are luminous in turn, each light source drives respectively two fibre optic temperature sensors of its correspondence and surveys, corresponding two photodetectors of these two fibre optic temperature sensors, thereby it is corresponding one by one with each fibre optic temperature sensor to guarantee that photodetector is delivered to the signal of central processing unit, realized the point type location, and then be conducive to the identification of sensor address, improved positioning performance, be convenient to the staff and make rapid reaction according to the address of each sensor.Therefore, the utility model not only positioning performance is stronger, and treatment effeciency is higher.
2, also adopted four 1 * 2 fiber couplers with as light splitting or coupled apparatus between light source and fibre optic temperature sensor, fibre optic temperature sensor and photodetector in a kind of 1 * 2 optical fiber temperature transducer system of the utility model, not only can guarantee the uniform distribution of light between input, output optical fibre, be that splitting ratio is as far as possible near 50%, generally between 40% – 60 %, insertion loss is less than 3.5dB, homogeneity is less than 0.5dB, and is conducive to save optical fiber cable.Therefore, the utility model not only effect of light splitting or coupling is stronger, and cost is lower.
3, the temperature sensor in a kind of 1 * 2 optical fiber temperature transducer system of the utility model is fibre optic temperature sensor, what connect on it is the communication stage optical fiber cable, thereby the design does not comprise any electronic devices and components, can avoid the shortcoming of electronic devices and components detecting temperature in prior art, essence is very safe, be difficult for agingly, can not occur because of aging wrong report or the malfunctioning situation of causing, the place that the spy is applicable to is inflammable and explosive, electromagnetic radiation intensity is large.Therefore, the utility model can be stopped the electronic devices and components detecting temperature.
4, the light source in a kind of 1 * 2 optical fiber temperature transducer system of the utility model is LED or LD light source, connecting material between each components and parts is the communication stage optical fiber cable, light source, optical cable are so arranged in pairs or groups, not only transmission range is far away, stability is stronger, and light intensity is large, low price, and in addition, the output terminal of central processing unit is connected with 485 signal wires or CAN bus, not only the stability of signal transmission is strong, and the expansion of being convenient to system be connected.Therefore, the utility model not only the stability of signal strong, can satisfy in the fire protection warning product needs to transmission range, and transmission range is long, cost is very low.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: light source 11, No. two light sources 12,1 * 2 fiber coupler 21, No. two 1 * 2 fiber couplers 22, No. three 1 * 2 fiber couplers 23, No. four 1 * 2 fiber couplers 24, fibre optic temperature sensor 31, No. two fibre optic temperature sensors 32, No. three fibre optic temperature sensors 33, No. four fibre optic temperature sensors 34, communication stage optical fiber cable 4, photodetector 51, No. two photodetectors 52, signal processor 6, central processing unit 7.
Embodiment
Below in conjunction with description of drawings and embodiment, the utility model is described in further detail.
Referring to Fig. 1, a kind of 1 * 2 optical fiber temperature transducer system comprises temperature measuring optical cable, signal processor 6 and central processing unit 7, and an end of described signal processor 6 is connected with temperature measuring optical cable, and the other end is connected with central processing unit 7;
Described temperature measuring optical cable comprises a light source 11, No. two light sources 12, a fibre optic temperature sensor 31, No. two fibre optic temperature sensors 32, No. three fibre optic temperature sensors 33, No. four fibre optic temperature sensors 34, a photodetector 51 and No. two photodetectors 52;
the output terminal of a described light source 11 and a fibre optic temperature sensor 31, the input end of No. two fibre optic temperature sensors 32 is connected, the output terminal of No. two light sources 12 and No. three fibre optic temperature sensors 33, the input end of No. four fibre optic temperature sensors 34 is connected, a fibre optic temperature sensor 31, the output terminal of No. four fibre optic temperature sensors 34 is connected with the input end of No. two photodetectors 52, No. two fibre optic temperature sensors 32, the output terminal of No. three fibre optic temperature sensors 33 is connected with the input end of a photodetector 51, a photodetector 51, the output terminal of No. two photodetectors 52 is connected with an end of signal processor 6, the other end of signal processor 6 is connected with an end of central processing unit 7.
Described temperature measuring optical cable also comprises 1 * 2 fiber coupler 21, No. two 1 * 2 fiber couplers 22, No. three 1 * 2 fiber couplers 23 and No. four 1 * 2 fiber couplers 24;
The output terminal of a described light source 11 is connected with the input end of a fibre optic temperature sensor 31, No. two fibre optic temperature sensors 32 through 1 * 2 fiber coupler 21;
The output terminal of described No. two fibre optic temperature sensors 32, No. three fibre optic temperature sensors 33 is connected with the input end of a photodetector 51 through No. two 1 * 2 fiber couplers 22;
The output terminal of described No. two light sources 12 is connected with the input end of No. three fibre optic temperature sensors 33, No. four fibre optic temperature sensors 34 through No. three 1 * 2 fiber couplers 23;
The output terminal of a described fibre optic temperature sensor 31, No. four fibre optic temperature sensors 34 is connected with the input end of No. two photodetectors 52 through No. four 1 * 2 fiber couplers 24.
A described light source 11, No. two light sources 12, a fibre optic temperature sensor 31, No. two fibre optic temperature sensors 32, No. three fibre optic temperature sensors 33, No. four fibre optic temperature sensors 34, a photodetector 51, No. two photodetectors 52,1 * 2 fiber coupler 21, No. two 1 * 2 fiber couplers 22, No. three 1 * 2 fiber couplers 23, No. four 1 * 2 fiber couplers 24 adopt communication stage optical fiber cable 4 to connect each other.
The output terminal of a described photodetector 51, No. two photodetectors 52 is connected with 485 signal wires or CAN bus after signal processor 6, central processing unit 7 successively.
A described light source 11, No. two light sources 12 are LED or LD light source.
Principle of the present utility model is described as follows:
The temperature sensor that the conventional temperature sensor system adopts is take electric signal as working foundation, as thermopair, thermistor, pyroelectric detector equitemperature sensor.Under strong electromagnetic or inflammable and explosive occasion, based on the conventional temperature sensor of electric signal measurement just be very restricted and electronic devices and components easily aging, make moist, easily produce wrong report even malfunctioning.
The utility model can be installed many cover native systems simultaneously according to the application places size, can monitor respectively the temperature that reaches hundreds of location points, realizes omnibearing temperature survey, without the dead angle, and has that cost is low, function many and the high characteristics of reliability.Totally have the following advantages:
1. optical fiber, essential safety are all adopted in the transmission of temperature sensing and signal;
2. temp probe does not have electronic devices and components, has solved electronic devices and components because of moist and the aging wrong report that causes and Its Failures;
3. the installation that fibre optic temperature sensor is simple in structure, volume is little, quality gently makes native system, production, easy to maintenance, maintenance cost is low;
4. the response time short, highly sensitive, reusable, do not fear pollution, acid and alkali-resistance;
5. fibre optic temperature sensor quantity can be adjusted at random, increases or reduce system's fibre optic temperature sensor number according to needs;
6. adopt the output of 485 signal wires or CAN digital signal, the expansion that facilitates system be connected;
7. point type is located, and the staff can react rapidly according to the address of each sensor;
8. adopt 1 * 2 minute actinic light technology, saved optical fiber and cost, and be conducive to the identification of optical fiber type temperature sensor address;
But 9. Intelligent Recognition fibercuts position.
Embodiment 1:
A kind of 1 * 2 optical fiber temperature transducer system, comprise temperature measuring optical cable, signal processor 6 and central processing unit 7, described temperature measuring optical cable comprises light source 11, No. two light source 12(LED or LD light source), 1 * 2 fiber coupler 21, No. two 1 * 2 fiber couplers 22, No. three 1 * 2 fiber couplers 23, No. four 1 * 2 fiber couplers 24, a fibre optic temperature sensor 31, No. two fibre optic temperature sensors 32, No. three fibre optic temperature sensors 33, No. four fibre optic temperature sensors 34, a photodetector 51 and No. two photodetectors 52;
the output terminal of a described light source 11 is through 1 * 2 fiber coupler 21 and a fibre optic temperature sensor 31, the input end of No. two fibre optic temperature sensors 32 is connected, the output terminal of described No. two light sources 12 is through No. three 1 * 2 fiber couplers 23 and No. three fibre optic temperature sensors 33, the input end of No. four fibre optic temperature sensors 34 is connected, a described fibre optic temperature sensor 31, the output terminal of No. four fibre optic temperature sensors 34 is connected with the input end of No. two photodetectors 52 through No. four 1 * 2 fiber couplers 24, described No. two fibre optic temperature sensors 32, the output terminal of No. three fibre optic temperature sensors 33 is connected with the input end of a photodetector 51 through No. two 1 * 2 fiber couplers 22, a described photodetector 51, the output terminal of No. two photodetectors 52 is connected with an end of signal processor 6, the other end of signal processor 6 is connected with an end of central processing unit 7, the other end of central processing unit 7 is connected with 485 signal wires or CAN bus,
Connecting material between above-mentioned light source, fiber coupler, fibre optic temperature sensor, photodetector is all communication stage optical fiber cable 4.
During work, a light source 11, No. two light sources 12 are luminous in turn successively;
when a light source 11 is luminous, No. two light source 12 stops luminous, the light that light source 11 sends is coupled into transmission in communication stage optical fiber cable 4 after ovennodulation, evenly be divided into two bundles through 1 * 2 rear quilt of fiber coupler 21, enter respectively a fibre optic temperature sensor 31 and No. two fibre optic temperature sensors 32, the light signal of fibre optic temperature sensor 31 outputs enters No. two photodetectors 52 and carries out opto-electronic conversion after No. four 1 * 2 fiber couplers 24, the light signal of No. two fibre optic temperature sensor 32 outputs enters a photodetector 51 and carries out opto-electronic conversion after No. two 1 * 2 fiber couplers 22, signal after opto-electronic conversion enters central processing unit 7 again and processes, this shows, a fibre optic temperature sensor 31, the detectable signal that No. two fibre optic temperature sensors 32 send is separate, can be identified one by one by central processing unit 7,
in like manner, when No. two light sources 12 are luminous, No. one light source 11 stops luminous, the light that No. two light sources 12 send is coupled into transmission in communication stage optical fiber cable 4 after ovennodulation, evenly be divided into two bundles through No. three 1 * 2 rear quilts of fiber coupler 23, enter respectively fibre optic temperature sensor 33 No. three, No. four fibre optic temperature sensors 34, the light signal of No. four fibre optic temperature sensor 34 outputs enters No. two photodetectors 52 and carries out opto-electronic conversion after No. four 1 * 2 fiber couplers 24, the light signal of No. three fibre optic temperature sensor 33 outputs enters a photodetector 51 and carries out opto-electronic conversion after No. two 1 * 2 fiber couplers 22, signal after opto-electronic conversion enters central processing unit 7 again and processes, this shows, No. three fibre optic temperature sensors 33, the detectable signal that No. four fibre optic temperature sensors 34 send is separate, can be identified one by one by central processing unit 7,
In summary, the temperature signal that four corresponding fibre optic temperature sensors 31 of temperature sensing point, No. two fibre optic temperature sensors 32, No. three fibre optic temperature sensors 33, No. four fibre optic temperature sensors 34 detect is separate, non-interfering, can carry out accurate Address Recognition, thereby realize fixed point monitoring, jointly complete the temperature monitoring to differing heights point.
Claims (5)
1. optical fiber temperature transducer system, comprise temperature measuring optical cable, signal processor (6) and central processing unit (7), one end of described signal processor (6) is connected with temperature measuring optical cable, and the other end is connected with central processing unit (7), it is characterized in that:
Described temperature measuring optical cable comprises a light source (11), No. two light sources (12), a fibre optic temperature sensor (31), No. two fibre optic temperature sensors (32), No. three fibre optic temperature sensors (33), No. four fibre optic temperature sensors (34), a photodetector (51) and No. two photodetectors (52);
the output terminal of a described light source (11) and a fibre optic temperature sensor (31), the input end of No. two fibre optic temperature sensors (32) is connected, the output terminal of No. two light sources (12) and No. three fibre optic temperature sensors (33), the input end of No. four fibre optic temperature sensors (34) is connected, a fibre optic temperature sensor (31), the output terminal of No. four fibre optic temperature sensors (34) is connected with the input end of No. two photodetectors (52), No. two fibre optic temperature sensors (32), the output terminal of No. three fibre optic temperature sensors (33) is connected with the input end of a photodetector (51), a photodetector (51), the output terminal of No. two photodetectors (52) is connected with an end of signal processor (6), the other end of signal processor (6) is connected with an end of central processing unit (7).
2. a kind of 1 * 2 optical fiber temperature transducer system according to claim 1 is characterized in that:
Described temperature measuring optical cable also comprises 1 * 2 fiber coupler (21), No. two 1 * 2 fiber couplers (22), No. three 1 * 2 fiber couplers (23) and No. four 1 * 2 fiber couplers (24);
The output terminal of a described light source (11) is connected through the input end of 1 * 2 fiber coupler (21) with a fibre optic temperature sensor (31), No. two fibre optic temperature sensors (32);
The output terminal of described No. two fibre optic temperature sensors (32), No. three fibre optic temperature sensors (33) is connected through the input end of No. two 1 * 2 fiber couplers (22) with a photodetector (51);
The output terminal of described No. two light sources (12) is connected through the input end of No. three 1 * 2 fiber couplers (23) with No. three fibre optic temperature sensors (33), No. four fibre optic temperature sensors (34);
The output terminal of a described fibre optic temperature sensor (31), No. four fibre optic temperature sensors (34) is connected through the input end of No. four 1 * 2 fiber couplers (24) with No. two photodetectors (52).
3. a kind of 1 * 2 optical fiber temperature transducer system according to claim 2, it is characterized in that: a described light source (11), No. two light sources (12), a fibre optic temperature sensor (31), No. two fibre optic temperature sensors (32), No. three fibre optic temperature sensors (33), No. four fibre optic temperature sensors (34), a photodetector (51), No. two photodetectors (52), 1 * 2 fiber coupler (21), No. two 1 * 2 fiber couplers (22), No. three 1 * 2 fiber couplers (23), No. four 1 * 2 fiber couplers (24) adopt communication stage optical fiber cable (4) to connect each other.
4. according to claim 1,2 or 3 described a kind of 1 * 2 optical fiber temperature transducer systems, it is characterized in that: the output terminal of a described photodetector (51), No. two photodetectors (52) is connected with 485 signal wires or CAN bus after signal processor (6), central processing unit (7) successively.
5. according to claim 1,2 or 3 described a kind of 1 * 2 optical fiber temperature transducer systems, it is characterized in that: a described light source (11), No. two light sources (12) are LED or LD light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320289945.0U CN203274953U (en) | 2013-05-24 | 2013-05-24 | Temperature sensor system of 1*2 optical fiber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320289945.0U CN203274953U (en) | 2013-05-24 | 2013-05-24 | Temperature sensor system of 1*2 optical fiber |
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| CN203274953U true CN203274953U (en) | 2013-11-06 |
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| CN201320289945.0U Expired - Lifetime CN203274953U (en) | 2013-05-24 | 2013-05-24 | Temperature sensor system of 1*2 optical fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10888381B2 (en) | 2014-02-27 | 2021-01-12 | Koninklijke Philips N.V. | Registration apparatus for interventional procedure |
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2013
- 2013-05-24 CN CN201320289945.0U patent/CN203274953U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10888381B2 (en) | 2014-02-27 | 2021-01-12 | Koninklijke Philips N.V. | Registration apparatus for interventional procedure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430000 unit 1, floor 1-5, building 3-11, phase III, optical core center, 303 Guanggu Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN NEWFIBER PHOTOELECTRIC Co.,Ltd. Address before: 430074 unit 2, building 1, Wenhua building, optical valley core center, No. 111, Guanggu Avenue, Wuhan, Hubei Province Patentee before: WUHAN NEWFIBER OPTOELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
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| CX01 | Expiry of patent term |