CN202329866U - Fluorescent optical fiber temperature sensing demodulation instrument - Google Patents
Fluorescent optical fiber temperature sensing demodulation instrument Download PDFInfo
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- CN202329866U CN202329866U CN2011203591363U CN201120359136U CN202329866U CN 202329866 U CN202329866 U CN 202329866U CN 2011203591363 U CN2011203591363 U CN 2011203591363U CN 201120359136 U CN201120359136 U CN 201120359136U CN 202329866 U CN202329866 U CN 202329866U
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Abstract
The present utility model relates to a temperature measuring device, especially to an optical fiber temperature sensing demodulation device, and the device is a fluorescent optical fiber temperature sensing demodulation instrument based on the fluorescent temperature sensing technology. The instrument comprises a signal detection module, a data processing module, a control module, a display module, a network module and a power supply module. In the instruments, the fluorescent sensing technology, the electronic control technology and the signal processing technology are fully utilized, shortages of the prior art are overcome, and temperature monitoring products which have high temperature measurement precision, and are high voltage resistant and electromagnetic interference resistant are provided for the industrial on-line temperature measurement field.
Description
Technical field
The utility model relates to a kind of temperature measuring equipment, and particularly a kind of demodulating equipment of optical fiber sensing is a kind of fluorescence optical fiber TEMP (FBG) demodulator based on the fluorescence temperature sensor technology.
Background technology
Fluorescent optical fiber temperature sensor is formed by multimode optical fiber with at the fluorescent object (film) of its top installation.Fluorescent material is after the light stimulus that receives certain wavelength (being excited to compose), and stimulated radiation goes out fluorescent energy.After excitation was cancelled, the continuation of fluorescence sunset glow depended on factors such as fluorescent material characteristic, environment temperature.This fluorescence that is stimulated is normally decayed by exponential manner, and the time constant of decay is fluorescence lifetime or fluorescence sunset glow time (ns).Under the different environment temperature, the decay of fluorescence sunset glow is also different.Therefore through measuring the length in fluorescence sunset glow life-span, just can learn environment temperature at that time.
Fluorescence formula optical fiber temperature measurement system has anti-electromagnetic interference (EMI), High-Voltage Insulation, reliable and stable, high precision, high sensitivity, microsize, long-life and corrosion-resistant, characteristics such as adaptability is good; Life-cycle need not calibrate, is fit to very much be applied to the temperature monitoring in high voltage, the forceful electric power magnetic special industry environment such as (EMI/RFI/EMP).The system design form is flexible, reliability is high, is suitable for the complicated multipoint temperature monitoring application of various thermometric demands and topological structure.Fluorescent optical fiber temperature sensor is one of focus of modern technical field of optical fiber sensing research.Many thermometric occasion conditions are special; Measurement to temperature possibly cause some actual difficulties; In all research activitiess of other alternative means of seeking temperature sensor, fluorescent optical fiber temperature sensor with high, high voltage withstanding, the anti-electromagnetic interference (EMI) of its temperature measurement accuracy, volume is little, loss is low, advantage such as corrosion-resistant comes into one's own just day by day.
At present, the fluorescence temperature sensor technology of China still rests on universities and colleges and scientific research institutions' scientific experiment stage, can realize that hyperchannel, networking control automatically, and the fluorescence thermometric product that is applied to the maturation of industry spot does not appear in the newspapers and use.
Before the utility model is made; Publication number is that the Chinese utility model patent of CN201680925U provides a kind of fluorescent optical fiber temperature sensor that detects based on fluorescence lifetime; This fluorescent optical fiber temperature sensor comprises light source driving circuit, fluorescence excitation light source, light path coupled system, fluorescence optical fiber temperature probe, fluorescence signal detecting processing system and display system; Networking and Long-distance Control but this fluorescent optical fiber temperature sensor still is unrealized, and requirement cheaply.
Summary of the invention
The utility model purpose is to overcome the deficiency that prior art exists, and provides a kind of simple in structure, and monitoring is in real time measured accurately, and is reliable, and the fluorescence optical fiber TEMP (FBG) demodulator with networked function.
Realize that the utility model purpose technical scheme is: a kind of fluorescence optical fiber TEMP (FBG) demodulator is provided, and it comprises acquisition of signal module, data processing module, control module, display module, mixed-media network modules mixed-media and power module;
Described acquisition of signal module comprises pulse led light source and driving circuit, PIN pipe photodetector and circuit, half-reflection and half-transmission filter plate, coupled lens and fluorescent optical fiber temperature sensor; Driving circuit drives pulse led light source sends pulsed light, on the emitting light path of led light source, sets gradually half-reflection and half-transmission filter plate and coupled lens, and the fiber connector at the emitting light path rear through being arranged on coupled lens is connected with fluorescent optical fiber temperature sensor; The fluorescence reflected light that fluorescent optical fiber temperature sensor forms gets into coupled lens and half-reflection and half-transmission filter plate through fiber connector more successively; Through PIN pipe photodetector output electric signal is set at half-reflection and half-transmission filter plate rear; After amplifying circuit and analog to digital conversion circuit processing, be input to data processing module;
Described data processing module comprises as the single-chip microcomputer of data processing chip and peripheral circuit thereof, and the signal of acquisition of signal module input is handled, and the information that will obtain is input to control module;
Described control module comprises single-chip microcomputer, UART chip and peripheral circuit thereof; Control module outputs control signals to the acquisition of signal module, the pulse width of the pulsed light that the regulating impulse led light source sends and intensity; Control module is communicated by letter with data processing module through the UART chip, and the data in the reading of data processing module are sent to display module or mixed-media network modules mixed-media with data; Control module reads the control command that the master controller of mixed-media network modules mixed-media output sends, and responds;
Described mixed-media network modules mixed-media carries out communication through RS-485 interface or CAN bus and control module;
Described display module communicates through data connecting line and control module;
Described power module outlet voltage is respectively direct current 3.3V and 5V, for described each module provides power supply.
A kind of fluorescence optical fiber TEMP (FBG) demodulator that the utility model provides, it comprises 1～9 acquisition of signal module, each acquisition of signal module connects a fluorescent optical fiber temperature sensor.Described display module comprises digital display screen, input button and hummer.
The beneficial effect of the utility model is; Fluorescence sense technology and control technology have been made full use of; And, realized that the network distribution type temperature monitors in real time with its industrial temperature measurement on-line product that develops into a kind of maturation, be fit to industry spot extensive area point type temperature and survey; And temperature measurement accuracy is high, and cost is low.
Description of drawings
Fig. 1 is the structural representation block diagram of a kind of fluorescence optical fiber TEMP (FBG) demodulator of providing of the utility model embodiment;
Fig. 2 is the structural representation of the acquisition of signal module that provides of the utility model embodiment;
Wherein: 1, pulse led light source and driving circuit thereof; 2, PIN photodetector and circuit thereof; 3, half-reflection and half-transmission filter plate; 4, coupled lens; 5, fiber connector.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Referring to accompanying drawing 1, it is the structural representation block diagram of a kind of fluorescence optical fiber TEMP (FBG) demodulator of providing of present embodiment; Fluorescence optical fiber TEMP (FBG) demodulator comprises acquisition of signal module, data processing module, control module, display module, mixed-media network modules mixed-media and power module; The acquisition of signal module links to each other with data processing module, and data processing module links to each other with control module, and control module links to each other with mixed-media network modules mixed-media, and display module links to each other with control module; Each module under the logic control of control module, co-ordination.
Every fluorescence optical fiber TEMP (FBG) demodulator can be according to the on-the-spot actual needs of monitoring; 1～9 acquisition of signal module is installed; The quantity of acquisition of signal module is consistent with the quantity of the detection channels that fluorescence optical fiber TEMP (FBG) demodulator has; The corresponding detection channels of each acquisition of signal module, and each detection channels connects a fluorescent optical fiber temperature sensor.Referring to accompanying drawing 2, it is the structural representation of the acquisition of signal module that provides of present embodiment; Each acquisition of signal module comprises a pulse led light source and driving circuit thereof 1, PIN pipe photodetector and circuit 2 thereof, a slice half-reflection and half-transmission filter plate 3, a coupled lens 4; Its concrete structure is: driving circuit drives pulse led light source sends pulsed light; On the emitting light path of led light source, set gradually half-reflection and half-transmission filter plate 3 and coupled lens 4, the fiber connector 5 at the emitting light path rear through being arranged on coupled lens links to each other with fluorescent optical fiber temperature sensor; The fluorescence reflected light that fluorescent optical fiber temperature sensor forms passes through coupled lens and half-reflection and half-transmission filter plate through fiber connector more successively; PIN pipe photodetector and circuit 2 thereof are set at half-reflection and half-transmission filter plate rear; The output electric signal of PIN pipe photodetector is input to data processing module after amplifying circuit and analog to digital conversion circuit processing.The effect of acquisition of signal module is: after fluorescent optical fiber temperature sensor is connected, driving circuit pulse led light source send the pulsed light pulse width and intensity adjustable, pulsed light is through the reflection of filter plate; Pass through coupled lens again; Be coupled into corresponding fluorescent optical fiber temperature sensor, the fluorescence that is returned by fluorescent optical fiber temperature sensor passes through coupled lens, again from the filter plate transmission; Get into PIN pipe photodetector; The fluorescence signal that fluorescent optical fiber sensor is returned carries out opto-electronic conversion, through amplifying circuit and analog to digital conversion circuit signal is amplified and analog to digital conversion then, and the electric signal after will changing is input to data processing module; The required power supply of this module is the 3.3V voltage supply that power module provides.
Data processing module comprises a single-chip microcomputer and a peripheral circuit thereof as data processing chip; With realize communicating by letter through the SPI module in the single-chip microcomputer between the acquisition of signal module; The 5V power voltage supply that this module is provided by power module; Its role is to, the signal that the acquisition of signal module is delivered carries out analytical calculation, draws the temperature information that the pairing fluorescent optical fiber sensor of each acquisition of signal module detects at last.
Control module comprises a single-chip microcomputer as control chip, UART chip and peripheral circuit thereof, and realizes communication, the 5V power voltage supply that its circuit is provided by power module through the UART chip between the data processing module.The effect of control module is: the control exciting light source module, and the pulse width and the intensity of regulating driving pulse light, the temperature in the reading of data processing module, warning or fault data, and enter data into display module or mixed-media network modules mixed-media; Control module reads the control command that master controller that mixed-media network modules mixed-media submits to sends, and responds, and whole fluorescence optical fiber TEMP (FBG) demodulator is carried out logic control, communicates through the RS-485 interface between control module and the mixed-media network modules mixed-media.
Display module comprises digital display screen, input button, hummer, UART chip and interlock circuit; Acting as of it: according to the data of control module input; The information such as temperature, warning, fault that show each sensor, through the input button mode of operation of system can be set, to the hummer noise reduction and can set the wherein a certain special modality temperature of independent demonstration; Display module belongs to the part of fluorescence optical fiber TEMP (FBG) demodulator; But be independent of this fluorescence optical fiber TEMP (FBG) demodulator, and be connected through a four-core connecting line between the fluorescence optical fiber TEMP (FBG) demodulator, this connecting line comprises two data lines and two power leads; Display module links to each other with control module through this data line; Between communicate through UART chip and control module, two power leads link to each other with power module, to it 5V are provided power voltage supply by power module.
Mixed-media network modules mixed-media comprises a serial RS-485 communication interface chip MAX485 and a peripheral circuit thereof; Its role is to: realize the communication between fluorescence optical fiber TEMP (FBG) demodulator and the master controller; Communication mode is the RS-485 serial communication; Receive the steering order that master controller sends, this instruction is passed to control module, and send by information such as the corresponding temperature of each sensor of control module transmission, warning, faults to master controller; The 5V power voltage supply that mixed-media network modules mixed-media is provided by power module.
Power module comprises a transformer, a bridge rectifier circuit, a filter capacitor, a current-limiting resistance, a stabilivolt and an input end and two output terminals; Input end is connected with 220V, 50Hz alternating current through power lead, and output end voltage is respectively direct current 3.3V and 5V, is each module for power supply of fluorescence optical fiber TEMP (FBG) demodulator, has the effect of transformation and voltage stabilizing.
Claims (3)
1. a fluorescence optical fiber TEMP (FBG) demodulator is characterized in that it comprises acquisition of signal module, data processing module, control module, display module, mixed-media network modules mixed-media and power module;
Described acquisition of signal module comprises pulse led light source and driving circuit, PIN pipe photodetector and circuit, half-reflection and half-transmission filter plate, coupled lens and fluorescent optical fiber temperature sensor; Driving circuit drives pulse led light source sends pulsed light, on the emitting light path of led light source, sets gradually half-reflection and half-transmission filter plate and coupled lens, and the fiber connector at the emitting light path rear through being arranged on coupled lens is connected with fluorescent optical fiber temperature sensor; The fluorescence reflected light that fluorescent optical fiber temperature sensor forms gets into coupled lens and half-reflection and half-transmission filter plate through fiber connector more successively; Through PIN pipe photodetector output electric signal is set at half-reflection and half-transmission filter plate rear; After amplifying circuit and analog to digital conversion circuit processing, be input to data processing module;
Described data processing module comprises as the single-chip microcomputer of data processing chip and peripheral circuit thereof, and the signal of acquisition of signal module input is handled, and the information that will obtain is input to control module;
Described control module comprises single-chip microcomputer, UART chip and peripheral circuit thereof; Control module outputs control signals to the acquisition of signal module, the pulse width of the pulsed light that the regulating impulse led light source sends and intensity; Control module is communicated by letter with data processing module through the UART chip, and the data in the reading of data processing module are sent to display module or mixed-media network modules mixed-media with data; Control module reads the control command that the master controller of mixed-media network modules mixed-media output sends, and responds;
Described mixed-media network modules mixed-media carries out communication through RS-485 interface or CAN bus and control module;
Described display module communicates through data connecting line and control module;
Described power module outlet voltage is respectively direct current 3.3V and 5V, for described each module provides power supply.
2. a kind of fluorescence optical fiber TEMP (FBG) demodulator according to claim 1, it is characterized in that: it comprises 1～9 acquisition of signal module, each acquisition of signal module connects a fluorescent optical fiber temperature sensor.
3. a kind of fluorescence optical fiber TEMP (FBG) demodulator according to claim 1 is characterized in that: described display module comprises digital display screen, input button and hummer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203591363U CN202329866U (en) | 2011-09-23 | 2011-09-23 | Fluorescent optical fiber temperature sensing demodulation instrument |
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| CN2011203591363U CN202329866U (en) | 2011-09-23 | 2011-09-23 | Fluorescent optical fiber temperature sensing demodulation instrument |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674916A (en) * | 2013-12-11 | 2014-03-26 | 王兵 | Novel fluorescence signal demodulating device and method |
| CN104833441A (en) * | 2015-05-29 | 2015-08-12 | 江苏农林职业技术学院 | Online monitoring device and method for temperature change rule of high-frequency and routine hot-pressing wood-based plate slabs |
| CN105784194A (en) * | 2016-04-27 | 2016-07-20 | 珠海欧森斯科技有限公司 | Multi-point temperature detection integrated device and multi-point temperature detecting system |
| WO2017129131A1 (en) * | 2016-01-29 | 2017-08-03 | 缪爱俊 | Light path-coupling device and fluorescence temperature-sensing optical system |
| CN107436202A (en) * | 2017-08-31 | 2017-12-05 | 浙江智充电力科技有限公司 | A kind of expansible fluorescence fiber temperature measurement instrument |
| CN108415336A (en) * | 2018-04-17 | 2018-08-17 | 江苏博亨光电科技有限公司 | Fluorescence temperature demodulating system based on radial base neural net and method |
| CN111307327A (en) * | 2020-04-21 | 2020-06-19 | 西安和其光电科技股份有限公司 | Signal processing method and system for red light excited fluorescence lifetime demodulation temperature |
| CN112629699A (en) * | 2020-12-30 | 2021-04-09 | 西安和其光电科技股份有限公司 | Multichannel fluorescent optical fiber temperature transmitter and temperature measuring method |
-
2011
- 2011-09-23 CN CN2011203591363U patent/CN202329866U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674916A (en) * | 2013-12-11 | 2014-03-26 | 王兵 | Novel fluorescence signal demodulating device and method |
| CN103674916B (en) * | 2013-12-11 | 2016-01-13 | 王兵 | Novel fluorescence signal demodulating equipment and fluorescence signal demodulation method |
| CN104833441A (en) * | 2015-05-29 | 2015-08-12 | 江苏农林职业技术学院 | Online monitoring device and method for temperature change rule of high-frequency and routine hot-pressing wood-based plate slabs |
| WO2017129131A1 (en) * | 2016-01-29 | 2017-08-03 | 缪爱俊 | Light path-coupling device and fluorescence temperature-sensing optical system |
| CN105784194A (en) * | 2016-04-27 | 2016-07-20 | 珠海欧森斯科技有限公司 | Multi-point temperature detection integrated device and multi-point temperature detecting system |
| CN107436202A (en) * | 2017-08-31 | 2017-12-05 | 浙江智充电力科技有限公司 | A kind of expansible fluorescence fiber temperature measurement instrument |
| CN108415336A (en) * | 2018-04-17 | 2018-08-17 | 江苏博亨光电科技有限公司 | Fluorescence temperature demodulating system based on radial base neural net and method |
| CN111307327A (en) * | 2020-04-21 | 2020-06-19 | 西安和其光电科技股份有限公司 | Signal processing method and system for red light excited fluorescence lifetime demodulation temperature |
| CN111307327B (en) * | 2020-04-21 | 2021-02-23 | 西安和其光电科技股份有限公司 | Signal processing method and system for red light excited fluorescence lifetime demodulation temperature |
| CN112629699A (en) * | 2020-12-30 | 2021-04-09 | 西安和其光电科技股份有限公司 | Multichannel fluorescent optical fiber temperature transmitter and temperature measuring method |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room b704, building 2, creative industry park, 328 Xinghu street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Suzhou Guangge Technology Co.,Ltd. Address before: Room b704, building 2, creative industry park, 328 Xinghu street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: SUZHOU GUANGGE EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
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| CX01 | Expiry of patent term |