CN208872651U - A kind of integrated multi-wavelength light electric signal processing circuit - Google Patents
A kind of integrated multi-wavelength light electric signal processing circuit Download PDFInfo
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- CN208872651U CN208872651U CN201821333767.6U CN201821333767U CN208872651U CN 208872651 U CN208872651 U CN 208872651U CN 201821333767 U CN201821333767 U CN 201821333767U CN 208872651 U CN208872651 U CN 208872651U
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Abstract
The utility model discloses a kind of integrated multi-wavelength light electric signal processing circuit, comprising: light source module: two or more light sources is arranged, every kind of light source is used to issue the light of specific wavelength；Optical-electric module: for incuding light that the light source module issues and being converted to electric signal and the electric signal is converted to digital signal；Control module: for control light source module selection light source make the light source issue specific wavelength light and for receive the optical-electric module digital signal and handle the digital signal.It, which is different from, traditional separates and screens the light at required wavelength by a mixed light with multichannel beam splitter and multiple signals receiving part；It can be seen that the utility model optimizes traditional circuit, have the advantages that structure is simple, easy to maintain.
Description
Technical field
The utility model relates to a kind of integrated multi-wavelength light electric signal processing circuits.
Background technique
Solution examine field, as colorimetric measurement circuit be will measure light penetrate detected solution after, by light splitting piece
Different coloured light is separated, then carries out photoelectric conversion, amplification and AD conversion after irradiating detected solution to the optical signal isolated
And the analysis or calculation processing in later period, it is characterized in that having multichannel beam splitter and multiple signals reception and amplifying circuit by light
Reception is handled after the monochromatic light of each wavelength separates in source, every to measure a kind of coloured light and need beam splitter all the way and believe all the way
Number receive and amplifying circuit.
More than, due to using multichannel beam splitter and the received design of multiple signals, structure excessively redundancy, and excessively multiple
Miscellaneous structure is easily damaged, and is unfavorable for safeguarding.
Summary of the invention
The utility model in order to overcome at least one of the drawbacks of the prior art described above (deficiency), provides one kind and integrates more waves
Long photoelectric signal processing circuit.
In order to solve the above technical problems, the technical solution of the utility model is as follows: at a kind of integrated multi-wavelength light electric signal
It manages circuit, comprising: light source module: two or more light sources is set, every kind of light source is used to issue the light of specific wavelength；Optical-electric module:
For incuding light that the light source module issues and being converted to electric signal and the electric signal is converted to digital signal；Control
Module: the light source is made to issue the light of specific wavelength and for receiving the optical-electric module for controlling light source module selection light source
Digital signal and handle the digital signal.
More than, light source module and optical-electric module are electrically connected to control module and light source module and optical-electric module are corresponding.
Multiple light sources are integrated on light source module, each light source can launch a kind of light of wavelength；As for which is required
The light of kind wavelength can control corresponding light source working by control module and realize, allow light to irradiate after issuing specific light
After detected solution (usually transparent vessel splendid attire, such as test tube), light is mapped to optical-electric module after passing through the solution, and light is by light
The capture of electric module, which is converted to after electric signal and is converted to digital signal, then by digital data transmission to control module, with
For the analysis or calculation processing in later period.The utility model, which is used, is integrated in one for the various light sources of capable of emitting different wave length
Place, use when, only need to control the light source working of one of wavelength；Multichannel light splitting member is needed compared to traditional
Part and the received design of multiple signals, this circuit provide a kind of new design, the light source of different wave length are concentrated at one, root
It is used according to the light source luminescent for being separately controlled certain wavelength；It is different from traditional is connect with multichannel beam splitter and multiple signals
It receives component and one mixed light is separated and screened the light at required wavelength；It can be seen that the utility model optimize it is traditional
Circuit has the advantages that structure is simple, easy to maintain.
In some embodiments, the light source module includes LED light and LED light driving chip；The LED light electrical connection
In LED light driving chip, LED light driving chip is connected to the control module.
Using special LED light driving chip, LED light can be made to wait until the effect of a constant current, can ensure this
LED light issues the light of wavelength stabilization, improves the precision of colorimetric link.
In some embodiments, the LED light is 12, and 12 LED light correspond to the light of 12 kinds of wavelength；Institute
The connection of LED light anode common anode is stated, LED light cathode is connected to the signal output end of LED light driving chip.
As needed, the circuit design of the utility model 12 kinds of wavelength corresponding LED light can according to need selection institute
It is required that the corresponding light source luminescent of wavelength.
In some embodiments, the optical-electric module includes light-sensitive device, current-to-voltage converting circuit and A/D conversion electricity
Road；Light-sensitive device: for incuding the light of the light source module sending and being converted to current signal；Current-to-voltage converting circuit: it uses
In the current signal is converted to voltage signal；A/D conversion circuit: for by the voltage signal be converted to digital signal,
And the digital signal is transmitted to control module.
Light-sensitive device, current-to-voltage converting circuit and A/D conversion circuit are successively electrically connected, described in light-sensitive device induction
The light of light source module sending is simultaneously converted to current signal, which becomes after current-to-voltage converting circuit (can be resistance)
At voltage signal, voltage signal is converted into digital signal by A/D conversion circuit.
In some embodiments, the light-sensitive device is light sensitive diode.
In some embodiments, further include amplifying circuit for amplifying the voltage signal；The Current Voltage
Conversion circuit is electrically connected amplifying circuit, and amplifying circuit is electrically connected to A/D conversion circuit.
The output end of the input terminal connection current-to-voltage converting circuit of amplifying circuit, the output end of amplifying circuit connect A/D
Conversion circuit；Current-to-voltage converting circuit conversion voltage after amplifying circuit amplifies reconvert at digital signal.
Detailed description of the invention
Fig. 1 is the integrated multi-wavelength light electric signal processing circuit schematic diagram of one embodiment of the utility model；
Fig. 2 is the optical-electric module schematic diagram that multi-wavelength light electric signal processing circuit is integrated shown in Fig. 1；
Fig. 3 shows to integrate the LED light source of multi-wavelength light electric signal processing circuit shown in Fig. 1 and connecting with LED light driving chip
It is intended to；
The integrated multi-wavelength light electric signal processing circuit schematic diagram of another embodiment of Fig. 4 the utility model.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.
As shown in Figure 1, a kind of integrated multi-wavelength light electric signal processing circuit, comprising: light source module 10: setting is two or more
Light source, every kind of light source are used to issue the light of specific wavelength；Optical-electric module 20: for incuding the light of the sending of light source module 10 simultaneously
It is converted to electric signal and the electric signal is converted to digital signal；Control module 50: it is selected for controlling light source module 10
Light source makes the light source issue the light of specific wavelength and is used to receive the digital signal of the optical-electric module 20 and handles the number
Signal.
Light source module and optical-electric module are electrically connected to control module and light source module and optical-electric module correspondence (use
When optical-electric module can receive the light of light source module).
In the utility model, multiple light sources are integrated on light source module, each light source can launch a kind of light of wavelength
Line (light that i.e. different light sources correspond to different wave length)；Which kind of, as the light for requiring wavelength, can be controlled by control module
Corresponding light source working realizes that allowing the light to irradiate detected solution after issuing specific light, (usually transparent vessel contains, for example
Test tube) after, light is mapped to optical-electric module after passing through the solution, and light is captured by optical-electric module, which is converted to electric signal
After be converted to digital signal, then by digital data transmission to control module, for the analysis or calculation processing in later period.This is practical
The various light sources of capable of emitting different wave length are integrated at one by novel use, and use when only needs to control one of wave
Long light source working；Multichannel beam splitter and the received design of multiple signals are needed compared to traditional, this circuit provides
A kind of new design, the light source of different wave length is concentrated at one, individually controls the light source luminescent of certain wavelength as needed
It uses；It is different from traditional use multichannel beam splitter and multiple signals receiving part and separates a mixed light and screen at required
The light for the wavelength wanted；It can be seen that the utility model optimizes traditional circuit, have the advantages that structure is simple, easy to maintain.
A kind of embodiment of above light source module 10 can be with are as follows: the light source module 10 includes that LED light and LED light are driven
Dynamic chip；The LED light is electrically connected to LED light driving chip, and LED light driving chip is connected to the control module 50.It is described
LED light can be 12, and 12 LED light correspond to the light of 12 kinds of wavelength；The LED light anode common anode connection, LED light
Cathode is connected to the signal output end of LED light driving chip.The light-sensitive device can be light sensitive diode (photosensitive two pole
Pipe).
With reference to Fig. 3, LED light driving chip can be U1:TLC5940 model chip, and such as figure is it is recognised that 12 LED
The connection of lamp anode common anode, 12 LED light cathodes are connected to the signal output end OUT of LED light driving chip；TLC5940
Model chip can control the on-off and current value of every road monochromatic source, circuit of light sources can by Du Pont's socket (or other
Communication interface) it is connect with control module 50: in a kind of application of embodiment: chip U1(TLC5940) 2 feet receive control mould
The signal (SDATA serial signal) of block 50, the size of the 5-16 foot output electric current of chip U1, the 3 foot signals of chip U1 (come from
The SCLK signal of control module 50) on or off that then controls above-mentioned LED light, thereby realize control LED light on-off with
And control constant current purpose, and each LED chip constant current value is independent control.
Wherein, preferably, light source module can be 12 LED light for being welded on circuit board, and each LED, which shines, to be corresponded to
Wavelength be 340nm, 380nm, 405nm, 450nm, 480nm, 505nm, 546nm, 570nm, 630nm, 670nm, 700nm,
750nm。
A kind of embodiment of above optical-electric module 20 are as follows: the optical-electric module 20 includes light-sensitive device 201, electric current electricity
The AD conversion chip of TLC2551 model can be used in voltage conversion circuit 202 and A/D conversion circuit 204()；Light-sensitive device 201: it is used for
Incude the light that the light source module 10 issues and is converted to current signal；Current-to-voltage converting circuit 202: it is used for the electric current
Signal is converted to voltage signal；A/D conversion circuit 204: for the voltage signal to be converted to digital signal and by the number
Word signal is transmitted to control module 50.
Wherein, current-to-voltage converting circuit 202 can using operational amplifier (take the usage of its comparing function, can also be with
For a resistance, electric current takes resistance both end voltage by resistance) switch to voltage signal.
Light-sensitive device, current-to-voltage converting circuit and A/D conversion circuit are successively electrically connected, described in light-sensitive device induction
The light of light source module sending is simultaneously converted to current signal, which (can be resistance circuit through current-to-voltage converting circuit
May be transport and placing device) after become voltage signal, voltage signal is converted into digital signal by A/D conversion circuit.Control module
50 orderly control A/D conversion circuit 204 work, and the digital signal of the transmission of A/D conversion circuit 204 is received, it is sent after calculation processing
To host computer, result is showed into (figure, number etc.) at certain forms.
In order to which the working principle of the utility model is more clearly explained, for requiring with 450nm wavelength optical tests solution
Further illustrate: control module 50(CPU controller) receive (host computer) instruction --- control LED drive chip U1
(TLC5940) --- predetermined control current value is sent into LED drive chip U1(TLC5940) --- LED light of gating 450nm is led
It is logical that --- control module 50 controls A/D to the corresponding light source luminescent of 450nm wavelength --- waiting some cycles (being generally set to 2ms) ---
Conversion circuit 204 works --- and control module 50 oneself calculation processing digital signal returns 204 value numerical value of A/D conversion circuit
Back to host computer calculation processing -- it obtains a result.
More preferably, further include amplifying circuit 203 for amplifying the voltage signal；The current-to-voltage converting circuit
202 electrical connection amplifying circuits 203, amplifying circuit 203 are electrically connected to A/D conversion circuit 204.The amplifying circuit can be put with operation
Big device.The output end connection A/D of the output end of the input terminal connection current-to-voltage converting circuit of amplifying circuit, amplifying circuit turns
Change circuit；Current-to-voltage converting circuit conversion voltage after amplifying circuit amplifies reconvert at digital signal.
More specifically, such as a kind of integrated multi-wavelength light electric signal processing circuit embodiment that Fig. 4 is the utility model, light
After solution to be tested, illumination is mapped to photodiode D1(and can use the light of electric certain wavelength of module (figure does not annotate)
S1133 series of light sensitive diode), photodiode D1 converts the light to current signal, and current signal enters amplification arithmetic unit U3
(concrete model can use AD795JN), exporting a voltage signal through the amplification arithmetic unit U3, (Current Voltage here is converted
Circuit can also realize that electric current passes through resistance circuit, and resistance obtains a voltage, by the voltage acquisition using resistance), so
Voltage, which enters another amplification arithmetic unit U7(concrete model, afterwards can use AD823), it is converted subsequently into A/D conversion module
At digital signal, finally being acquired by control module, digital signal can also be sent to host computer calculation processing by calculation processing,
It obtains a result.
More than, generating positive and negative voltage required for operational amplifier works can be by inputting after a pressure stabilizing piece pressure stabilizing, i.e. operation
The positive voltage of amplifier: positive voltage DC+ input the specific voltage stabilizing chip model MC78L05ABPRP of voltage stabilizing chip U6() the end IN
Burning voltage is transported to the positive voltage of operational amplifier by son, the output terminal OUT of voltage stabilizing chip U6；Similarly, operational amplifier
Negative voltage: negative voltage DC- input the specific voltage stabilizing chip model MC78L05ACP of voltage stabilizing chip U4() IN terminal, pressure stabilizing core
Burning voltage is transported to the negative voltage terminal of operational amplifier by the output terminal OUT of piece U4.The above voltage stabilizing chip U6 and chip
The GND terminal of U4 is grounded.In this way, burning voltage is more conducive to the reliability Work of circuit.Improve precision.
In figure, description positional relationship only for illustration, should not be understood as the limitation to this patent；Obviously, this reality
It is merely examples for clearly illustrating the present invention with novel above-described embodiment, and is not to the utility model
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all practical new at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model right and wants within the spirit and principle of type
Within the protection scope asked.
Claims (6)
1. a kind of integrated multi-wavelength light electric signal processing circuit characterized by comprising light source module (10): setting two kinds with
Upper light source, every kind of light source are used to issue the light of specific wavelength；Optical-electric module (20): it is issued for incuding the light source module (10)
Light and be converted to electric signal and the electric signal be converted to digital signal；Control module (50): for controlling light source module
(10) selection light source makes the light source issue the light of specific wavelength and digital signal and place for receiving the optical-electric module (20)
Manage the digital signal.
2. integrated multi-wavelength light electric signal processing circuit according to claim 1, which is characterized in that the light source module
It (10) include LED light and LED light driving chip；The LED light is electrically connected to LED light driving chip, the connection of LED light driving chip
In the control module (50).
3. integrated multi-wavelength light electric signal processing circuit according to claim 2, which is characterized in that the LED light is ten
Two, 12 LED light correspond to the light of 12 kinds of wavelength；The LED light anode common anode connection, LED light cathode are separately connected
In the signal output end of LED light driving chip.
4. integrated multi-wavelength light electric signal processing circuit according to claim 1, which is characterized in that the optical-electric module
It (20) include light-sensitive device (201), current-to-voltage converting circuit (202) and A/D conversion circuit (204)；Light-sensitive device (201):
For incuding the light of the light source module (10) sending and being converted to current signal；Current-to-voltage converting circuit (202): being used for will
The current signal is converted to voltage signal；A/D conversion circuit (204): for by the voltage signal be converted to digital signal,
And the digital signal is transmitted to control module (50).
5. integrated multi-wavelength light electric signal processing circuit according to claim 4, which is characterized in that the light-sensitive device is
Light sensitive diode.
6. integrated multi-wavelength light electric signal processing circuit according to claim 4, which is characterized in that further include for by institute
State the amplifying circuit (203) of voltage signal amplification；The current-to-voltage converting circuit (202) is electrically connected amplifying circuit (203), puts
Big circuit (203) is electrically connected to A/D conversion circuit (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333767.6U CN208872651U (en) | 2018-08-18 | 2018-08-18 | A kind of integrated multi-wavelength light electric signal processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333767.6U CN208872651U (en) | 2018-08-18 | 2018-08-18 | A kind of integrated multi-wavelength light electric signal processing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208872651U true CN208872651U (en) | 2019-05-17 |
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ID=66464977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821333767.6U Active CN208872651U (en) | 2018-08-18 | 2018-08-18 | A kind of integrated multi-wavelength light electric signal processing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208872651U (en) |
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2018
- 2018-08-18 CN CN201821333767.6U patent/CN208872651U/en active Active
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