CN207937082U - A kind of integrated fluorescence optical fiber temperature demodulation device of multichannel - Google Patents
A kind of integrated fluorescence optical fiber temperature demodulation device of multichannel Download PDFInfo
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- CN207937082U CN207937082U CN201820405550.5U CN201820405550U CN207937082U CN 207937082 U CN207937082 U CN 207937082U CN 201820405550 U CN201820405550 U CN 201820405550U CN 207937082 U CN207937082 U CN 207937082U
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- microcontroller
- optical fiber
- fluorescence
- temperature
- electric signal
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Abstract
The utility model discloses a kind of integrated fluorescence optical fiber temperature demodulation device of multichannel, it includes a microcontroller and the above photoelectric detective circuit of the two-way being connect with microcontroller, includes LED light tube, constant-current drive circuit and sequentially connected fluorescence temperature probe, optical fiber, fiber coupler, lens, optical filter, photoelectric converter and amplifier per road photoelectric detective circuit；Microcontroller connects LED light tube by constant-current drive circuit, and LED light tube sends out excitation light and is transmitted to optical filter；Optical filter, which reflects excitation light and passes sequentially through lens, fiber coupler and optical fiber, projects fluorescence temperature probe；Fluorescence temperature probe reflects excitation light and generates reflected light again to be passed sequentially through optical fiber, fiber coupler, lens, optical filter and is reflected into photoelectric converter, photoelectric converter converts optical signals to electric signal, amplifier amplifies electric signal and exports to microcontroller, and microcontroller is converted to each road electric signal and demodulation obtains temperature signal.The utility model only needs a microcontroller, and stability and reliability are improved while reducing cost.
Description
Technical field
The utility model is related to optoelectronic device fields more particularly to a kind of multichannel to integrate fluorescence optical fiber temperature demodulation device.
Background technology
Each temperature detection channel in existing multichannel fluorescence optical fiber temperature measurement control system uses an independence
Fluorescence optical fiber temperature demodulation device, each demodulator is by an independent SCM system and photoelectric detective circuit and serial
Communication interface forms；Control system reads the temperature value in each channel by serial communication interface cycle.Such structure makes control
System processed becomes a multi-single-chip microcomputer system, and composition is complicated, each SCM system occur crash or do not communicate can
Can, make system temperature detecting and controlling system stability and reliability there are hidden danger, and multiple demodulators keep system installation complicated,
Cost increases.
Invention content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of integrated fluorescence optical fiber temperature solution of multichannel
Adjust device.
The technical solution adopted in the utility model is：
A kind of multichannel integrates fluorescence optical fiber temperature demodulation device comprising a microcontroller and the two-way that is connect with microcontroller with
Upper photoelectric detective circuit includes LED light tube, constant-current drive circuit and sequentially connected fluorescence per road photoelectric detective circuit
Temp probe, optical fiber, fiber coupler, lens, optical filter, photoelectric converter and amplifier；Microcontroller drives electricity by constant current
Road connects LED light tube, and LED light tube sends out excitation light and is transmitted to optical filter；Optical filter reflects excitation light and is transmitted to lens,
And excitation light is passed sequentially through into fiber coupler and optical fiber projects on fluorescence temperature probe；Fluorescence temperature probe reflects excitation again
Light generates reflected light, and reflected light passes sequentially through optical fiber, fiber coupler, lens, optical filter and is reflected into photoelectric converter, and photoelectricity turns
Parallel operation converts optical signals to electric signal and exports to amplifier, and amplifier exports after being amplified to electric signal to microcontroller,
Microcontroller carries out conversion to each road electric signal of input and demodulation obtains multi way temperature signal.
Further, high-speed a/d converter timesharing more than two-way built in microcontroller receives defeated after each road amplifier amplifies
The electric signal entered.
Further, the utility model further includes serial communication interface and upper temperature control terminal, and microcontroller is by serially leading to
Communication interface connects upper temperature control terminal.
The utility model uses above technical scheme, completes to examine multichannel fluorescence optical fiber temperature using a piece of high-speed microprocessor
Light, the control of circuit signal, reception, conversion and demodulation are surveyed, multi way temperature value is obtained；And it will be more by a serial communication interface
Road temperature value is uniformly transmitted to upper temperature measurement control system, simplifies the structure of multi-channel temperature measurement control system, improves
The stability and reliability of system operation, reduces the production cost of system.
Description of the drawings
The utility model is described in further details below in conjunction with the drawings and specific embodiments；
Fig. 1 is the structural schematic diagram that a kind of multichannel of the utility model integrates fluorescence optical fiber temperature demodulation device.
Specific implementation mode
As shown in Figure 1, the utility model discloses a kind of multichannels to integrate fluorescence optical fiber temperature demodulation device comprising a monolithic
Machine and the above photoelectric detective circuit of the two-way being connect with microcontroller include LED light tube, constant current per road photoelectric detective circuit
It driving circuit and sequentially connected fluorescence temperature probe, optical fiber, fiber coupler, lens, optical filter, photoelectric converter and puts
Big device；Microcontroller connects LED light tube by constant-current drive circuit, and LED light tube sends out excitation light and is transmitted to optical filter；It filters
Piece reflection excitation light is simultaneously transmitted to lens, and excitation light is passed sequentially through fiber coupler and optical fiber projects fluorescence temperature probe
On；Fluorescence temperature probe reflects excitation light and generates reflected light again, and reflected light passes sequentially through optical fiber, fiber coupler, lens, optical filtering
Piece is reflected into photoelectric converter, and photoelectric converter converts optical signals to electric signal and exports to amplifier, and amplifier is to telecommunications
Output is to microcontroller after number being amplified, and microcontroller carries out conversion to each road electric signal of input and demodulation obtains multi way temperature letter
Number.
Further, high-speed a/d converter timesharing more than two-way built in microcontroller receives defeated after each road amplifier amplifies
The electric signal entered.
Further, the utility model further includes serial communication interface and upper temperature control terminal, and microcontroller is by serially leading to
Communication interface connects upper temperature control terminal, unified that each road temperature signal and optical circuit relevant information are sent to upper temperature control terminal.
The utility model uses above technical scheme, completes to examine multichannel fluorescence optical fiber temperature using a piece of high-speed microprocessor
Light, the control of circuit signal, reception, conversion and demodulation are surveyed, multi way temperature value is obtained；And it will be more by a serial communication interface
Road temperature value is uniformly transmitted to upper temperature measurement control system, simplifies the structure of multi-channel temperature measurement control system, improves
The stability and reliability of system operation, reduces the production cost of system.
Claims (3)
1. a kind of multichannel integrates fluorescence optical fiber temperature demodulation device, it is characterised in that：It includes a microcontroller and connects with microcontroller
The above photoelectric detective circuit of two-way connect includes LED light tube, constant-current drive circuit and successively per road photoelectric detective circuit
Fluorescence temperature probe, optical fiber, fiber coupler, lens, optical filter, photoelectric converter and the amplifier of connection；Microcontroller passes through
Constant-current drive circuit connects LED light tube, and LED light tube sends out excitation light and is transmitted to optical filter；Optical filter reflects excitation light simultaneously
It is transmitted to lens, and excitation light is passed sequentially through into fiber coupler and optical fiber projects on fluorescence temperature probe；Fluorescence temperature is visited
Head reflects excitation light and generates reflected light again, and reflected light passes sequentially through optical fiber, fiber coupler, lens, optical filter and is reflected into photoelectricity
Converter, photoelectric converter convert optical signals to electric signal and export to amplifier, after amplifier is amplified electric signal
Output is to microcontroller, and microcontroller carries out conversion to each road electric signal of input and demodulation obtains multi way temperature signal.
2. a kind of multichannel according to claim 1 integrates fluorescence optical fiber temperature demodulation device, it is characterised in that：Built in microcontroller
High-speed a/d converter timesharing more than two-way receives the electric signal inputted after each road amplifier amplification.
3. a kind of multichannel according to claim 1 integrates fluorescence optical fiber temperature demodulation device, it is characterised in that：It further includes string
Row communication interface and upper temperature control terminal, microcontroller connect upper temperature control terminal by serial communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820405550.5U CN207937082U (en) | 2018-03-23 | 2018-03-23 | A kind of integrated fluorescence optical fiber temperature demodulation device of multichannel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820405550.5U CN207937082U (en) | 2018-03-23 | 2018-03-23 | A kind of integrated fluorescence optical fiber temperature demodulation device of multichannel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207937082U true CN207937082U (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820405550.5U Active CN207937082U (en) | 2018-03-23 | 2018-03-23 | A kind of integrated fluorescence optical fiber temperature demodulation device of multichannel |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332879A (en) * | 2018-03-23 | 2018-07-27 | 福建省力得自动化设备有限公司 | A kind of integrated fluorescence optical fiber temperature demodulation device of multichannel |
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2018
- 2018-03-23 CN CN201820405550.5U patent/CN207937082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332879A (en) * | 2018-03-23 | 2018-07-27 | 福建省力得自动化设备有限公司 | A kind of integrated fluorescence optical fiber temperature demodulation device of multichannel |
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