CN208505580U - A kind of aging monitoring device for super-radiance light emitting diode - Google Patents
A kind of aging monitoring device for super-radiance light emitting diode Download PDFInfo
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- CN208505580U CN208505580U CN201821123295.1U CN201821123295U CN208505580U CN 208505580 U CN208505580 U CN 208505580U CN 201821123295 U CN201821123295 U CN 201821123295U CN 208505580 U CN208505580 U CN 208505580U
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Abstract
The utility model belongs to the imaging of OCT optical coherence and sensory field of optic fibre, discloses a kind of aging monitoring device for super-radiance light emitting diode, comprising: main controller comprising single-chip microcontroller, and the A/D conversion circuit connecting with the single-chip microcontroller；Power collecting machine, it includes sequentially connected multichannel photodetector, I/V conversion circuit, operational amplifier circuit, filter circuit and switching circuit, the multichannel photodetector connects multichannel super-radiance light emitting diode to be measured, and the switching circuit connects the A/D conversion circuit.The beneficial effects of the utility model include: carry out output light detection while simulating SLD ageing process, and at the same time carry out can multiple SLD aging and monitoring, greatly improve the efficiency.
Description
Technical field
The utility model relates to the imaging of OCT optical coherence and sensory field of optic fibre, are used for superradiance more particularly, to one kind
The aging monitoring device of light emitting diode.
Background technique
As super-radiance light emitting diode (SLD) module is widely used in the imaging of OCT optical coherence, Fibre Optical Sensor and optical fiber
The stability in the fields such as gyro, super-radiance light emitting diode (SLD) module is particularly important.To super-radiance light emitting diode
(SLD) it is to select qualified stable super-radiance light emitting diode (SLD) module weight that module progress aging and output light, which are monitored,
Want one of method.Existing method of selecting is re-test optical power after first carrying out to module continuous ageing N hours, comparison module aging
Front and back changed power is selected, and just seem time-consuming, effort in the case where super-radiance light emitting diode (SLD) module is more,
Low efficiency, and it is unable to monitor to realtime power variation, it cannot be adjusted in time when modular power changes in ageing process
And processing.
Utility model content
The purpose of the utility model is to overcome above-mentioned technical deficiencies, propose a kind of for the old of super-radiance light emitting diode
Change monitoring device, solve in the prior art low efficiency, it is unable to monitor to realtime power variation, the technical issues of.
To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of for super-radiance light emitting diode
Aging monitoring device, comprising:
Main controller comprising single-chip microcontroller, and the A/D conversion circuit being connect with the single-chip microcontroller；
Power collecting machine comprising sequentially connected multichannel photodetector, I/V conversion circuit, operational amplifier circuit, filtered electrical
Road and switching circuit, the multichannel photodetector connect multichannel super-radiance light emitting diode to be measured, the switching circuit connection
The A/D conversion circuit.
Compared with prior art, the beneficial effects of the utility model include: carried out while simulating SLD ageing process it is defeated
Light detection out, and at the same time carry out can multiple SLD aging and monitoring, greatly improve the efficiency；Real-time monitoring SLD ageing process
Middle optical power change helps targetedly to be adjusted when designing SLD, greatly improves module aging qualification rate；It can be to acquisition
Data carry out Automatic analysis, the super SLD for stablizing qualification is picked out after the completion of aging automatically, it is automatic to underproof module
Reason is analyzed, is greatly improved the efficiency, accuracy and intuitive.
Detailed description of the invention
Fig. 1 is the principles of the present invention block diagram；
Fig. 2 is the circuit diagram of the main controller of the utility model；
Fig. 3 is the circuit diagram of the power collecting machine of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The utility model provides a kind of aging monitoring device for super-radiance light emitting diode, as shown in Figure 1, packet
It includes:
As shown in Fig. 2, main controller 2 comprising single-chip microcontroller 21, and the A/D conversion circuit 22 being connect with the single-chip microcontroller 21,
MCU can be selected in the single-chip microcontroller 21；
As shown in figure 3, power collecting machine 3 comprising sequentially connected multichannel photodetector 31, I/V conversion circuit 32,
Operational amplifier circuit 33, filter circuit and switching circuit 34, the multichannel photodetector 31 connect multichannel superradiation light-emitting two to be measured
Pole pipe 6, the switching circuit 34 connect the A/D conversion circuit 22.
Preferably, the switching circuit 34 is connect by DB9 connecting line with the A/D conversion circuit.
Preferably, the multichannel photodetector 31 by FC/APC optical patchcord respectively with multichannel superradiance to be measured
Light emitting diode 6 connects.
It preferably, further including the heat dissipation platform for placing multichannel super-radiance light emitting diode 6 to be measured, and is institute
State the power supply 5 of multichannel super-radiance light emitting diode 6 to be measured and heat dissipation platform power supply.
Preferably, the power supply 5 passes through multichannel module for power supply interface board 4 and multichannel superradiation light-emitting two to be measured
Pole pipe 6 connects.
Preferably, the main controller 2 further includes the level shifting circuit 23 connecting with the single-chip microcontroller 21, the level
Conversion circuit 23 connects human-computer interactive control terminal 1, and human-computer interactive control terminal 1 can be PC.
Preferably, the level shifting circuit 23 is connect by RS232 connecting line with human-computer interactive control terminal 1.
Single-chip microcontroller 21, A/D conversion circuit 22 and level shifting circuit 23 in the main controller 2 can be integrated in the same electricity
Road plate, as main controller plate；Multichannel photodetector 31, I/V conversion circuit 32, operational amplifier circuit in the power collecting machine 3
33, filter circuit and switching circuit 34 can also be integrated in the same circuit board, as power collecting machine plate.The main controller plate,
Power collecting machine plate, heat dissipation platform, power supply 5 can be placed in cabinet 7, be securable on the fixed frame of cabinet 7.
The power supply 5 exports DC5V voltage, by conducting wire be multichannel super-radiance light emitting diode 6 (SLD) to be measured and
The platform that radiates is powered, multichannel super-radiance light emitting diode 6 (SLD) output light, and is sent to power by FC/APC optical patchcord and is adopted
Collection machine 3.The power collecting machine 3 carries out one-to-one photoelectric conversion, signal processing to multiple-channel output light, after then handling
Signal pass to main controller 2 through DB9 connecting line.The main controller 2 is further processed signal and identifies, compares, single-chip microcontroller
Preset monitoring can be realized to signal according to its embedded program.Certainly, single-chip microcontroller can also connect external human-computer interactive control
Terminal 1 realizes more higher leveled monitoring, and when connection selects the level shifting circuit matched level of dimension as needed.
The human-computer interactive control terminal 1 controls the output TTL signal of the single-chip microcontroller in the main controller 2, controls the function
Switching circuit 34 in rate harvester 3 obtains the burning voltage signal of the above-mentioned output of multichannel one by one, then passes through the main controller 2
Burning voltage signal is converted into digital signal input single-chip microcontroller, makes monolithic by level shifting circuit by interior A/D conversion circuit
Machine and the human-computer interactive control terminal 1 carry out RS232 serial communication, transfer data to the human-computer interactive control terminal 1
It converted, shown, handled, analyzed and is recorded, according to demand self-defining data collection period, completed to multichannel superradiation light-emitting
The aging of diode 6 (SLD) module and output light detection.
Specific embodiment of the present utility model described above does not constitute the restriction to scope of protection of the utility model.
Any other various changes and modifications that any technical concept according to the present utility model is made should be included in practical
In novel scope of protection of the claims.
Claims (7)
1. a kind of aging monitoring device for super-radiance light emitting diode, characterized by comprising:
Main controller comprising single-chip microcontroller, and the A/D conversion circuit being connect with the single-chip microcontroller；
Power collecting machine comprising sequentially connected multichannel photodetector, I/V conversion circuit, operational amplifier circuit, filter circuit and
Switching circuit, the multichannel photodetector connect multichannel super-radiance light emitting diode to be measured, described in the switching circuit connection
A/D conversion circuit.
2. the aging monitoring device according to claim 1 for super-radiance light emitting diode, it is characterised in that: described to open
Powered-down road is connect by DB9 connecting line with the A/D conversion circuit.
3. the aging monitoring device according to claim 1 or 2 for super-radiance light emitting diode, it is characterised in that: institute
Multichannel photodetector is stated to connect with multichannel super-radiance light emitting diode to be measured respectively by FC/APC optical patchcord.
4. the aging monitoring device according to claim 3 for super-radiance light emitting diode, it is characterised in that: further include
It for placing the heat dissipation platform of multichannel super-radiance light emitting diode to be measured, and is multichannel super-radiance light emitting diode to be measured
With the power supply of heat dissipation platform power supply.
5. the aging monitoring device according to claim 4 for super-radiance light emitting diode, it is characterised in that: the electricity
Source is connect by multichannel module for power supply interface board with multichannel super-radiance light emitting diode to be measured.
6. the aging monitoring device according to claim 1 or 2 for super-radiance light emitting diode, it is characterised in that: institute
Stating main controller further includes the level shifting circuit connecting with the single-chip microcontroller, and it is whole which connects human-computer interactive control
End.
7. the aging monitoring device according to claim 6 for super-radiance light emitting diode, it is characterised in that: the electricity
Flat conversion circuit is connect by RS232 connecting line with human-computer interactive control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821123295.1U CN208505580U (en) | 2018-07-16 | 2018-07-16 | A kind of aging monitoring device for super-radiance light emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821123295.1U CN208505580U (en) | 2018-07-16 | 2018-07-16 | A kind of aging monitoring device for super-radiance light emitting diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208505580U true CN208505580U (en) | 2019-02-15 |
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ID=65289374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821123295.1U Active CN208505580U (en) | 2018-07-16 | 2018-07-16 | A kind of aging monitoring device for super-radiance light emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208505580U (en) |
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2018
- 2018-07-16 CN CN201821123295.1U patent/CN208505580U/en active Active
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