CN107202635A - A kind of UV power detects range expanding device - Google Patents
A kind of UV power detects range expanding device Download PDFInfo
- Publication number
- CN107202635A CN107202635A CN201710450486.2A CN201710450486A CN107202635A CN 107202635 A CN107202635 A CN 107202635A CN 201710450486 A CN201710450486 A CN 201710450486A CN 107202635 A CN107202635 A CN 107202635A
- Authority
- CN
- China
- Prior art keywords
- module
- analog
- amplification module
- master controller
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003321 amplification Effects 0.000 claims abstract description 58
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 108091000080 Phosphotransferase Proteins 0.000 claims abstract description 10
- 102000020233 phosphotransferase Human genes 0.000 claims abstract description 10
- 102000001253 Protein Kinase Human genes 0.000 claims abstract description 6
- 108060006633 protein kinase Proteins 0.000 claims abstract description 6
- 239000013078 crystal Substances 0.000 claims description 7
- 230000000052 comparative effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000005437 stratosphere Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light
Abstract
Range expanding device is detected the present invention relates to a kind of UV power, including ultraviolet light photo diode, Signal-regulated kinase, seek poor amplification module, secondary amplification module, analog-to-digital conversion module, master controller, comparator and D/A converter module, the ultraviolet photodiode is connected with Signal-regulated kinase, the Signal-regulated kinase is by analog signal line successively with asking poor amplification module and secondary amplification module to be connected, input of the output end of the secondary amplification module respectively with analog-to-digital conversion module and comparator is connected, the output end of the analog-to-digital conversion module and comparator is connected with master controller respectively, the master controller adjusts the output voltage of D/A converter module by DAC control lines, the output end of the D/A converter module is by bias signal line with asking poor amplification module to be connected；The microprocessor of the present invention quickly obtains the substantially strong and weak situation of uv power by comparator；The range of detection is greatly improved, and has in gamut scope higher precision.
Description
Technical field
The present invention relates to uv power field of measuring technique, in particular to a kind of UV power detection range is opened up
Extending apparatus.
Background technology
Ultraviolet is the electromagnetic wave that wavelength is 100~400nm.It is divided into again：Near ultraviolet ray UVA, far ultraviolet UVB and super
Short ultraviolet (UV) C.Wherein short wave ultraviolet UVC is absorbed when by earth surface stratosphere by ozone layer, it is impossible to reach the earth
Surface.Ultraviolet produced by usual ultraviolet lamp tube or that detecting instrument is detected is UVA and UVB.
The principle of ultraviolet photometer detection is that the specific light-sensitive element of selection, which makes, receives member according to ultraviolet specific wavelength
Optical signal, when light-receiving device is irradiated with, is changed into electric signal by part, is transmitted by amplifying, in ultraviolet radiation meter instrument
Shown on table with electric signal or data signal.
Existing Patent No. CN201610236289.6 patent of invention discloses a kind of wide-range light power meter, the skill
Art scheme includes photodetector, photosignal amplification and analog-to-digital conversion Acquisition Circuit, control computing unit and optical attenuator, should
Detection range of the technical scheme using optical attenuator to expand UV power, this kind expand range mode ultraviolet light compared with
Resolution ratio can be reduced when weak, when ultraviolet light is stronger, although can be with normal acquisition, but precision can be reduced.
The content of the invention
The invention aims to provide it is a kind of can greatly improve the range of detection, and have in gamut scope
The UV power detection range expanding device of degree of precision.
In order to reach the purpose of the present invention, technical scheme is as follows：
A kind of UV power detects range expanding device, it is characterised in that including ultraviolet light photo diode, signal condition mould
Block, poor amplification module, secondary amplification module, analog-to-digital conversion module, master controller, comparator and D/A converter module are asked, it is described
Ultraviolet photodiode is connected with Signal-regulated kinase, and the Signal-regulated kinase is by analog signal line successively with asking poor amplification
Module and the connection of secondary amplification module, the output end of the secondary amplification module are defeated with analog-to-digital conversion module and comparator respectively
Enter end connection, the output end of the analog-to-digital conversion module and comparator is connected with master controller respectively, and the master controller passes through
DAC control lines adjust the output voltage of D/A converter module, the output end of the D/A converter module by bias signal line with
Poor amplification module is asked to connect.
As preferred technical scheme, the Signal-regulated kinase turns voltage module, primary amplifying circuit and tune by electric current
Zero circuit is constituted, and turning voltage module through electric current after the ultraviolet photodiode reception ultraviolet light photo output current signal is converted to
Analog voltage signal, the primary amplifying circuit is received after electric current turns the analog voltage signal of voltage module output and is amplified
Output, by analog signal line with asking poor amplification module to be connected, the zeroing circuit is connected with primary amplifying circuit.
It is described to seek poor amplification module by low pass filter, first voltage follower and instrument as preferred technical scheme
Amplifier is constituted, and the output end of the low pass filter and the positive input terminal of instrument amplifier are connected, the low pass filter
Input is connected by analog signal line with Signal-regulated kinase, the output end and instrument amplifier of the first voltage follower
Negative input end connection, the input of the first voltage follower is connected by bias signal line with D/A converter module, institute
The output end for stating instrument amplifier is connected with secondary amplification module.
As preferred technical scheme, the secondary amplification module is by in-phase amplifier, resistor network and analog switch structure
Into, the input of the in-phase amplifier with asking poor amplification module to be connected, output end respectively with analog-to-digital conversion module and comparator
Connection, the comparator sends data to master controller by comparative result output line, and the master controller passes through times magnification
Number control line is connected after analog switch and resistor network with in-phase amplifier, the times magnification to adjust secondary amplification module
Number.
As preferred technical scheme, the master controller is made up of microprocessor and crystal oscillator, the crystal oscillator and microprocessor
Device is connected, and the microprocessor is connected with analog-to-digital conversion module, comparator, secondary amplification module and D/A converter module respectively.
As preferred technical scheme, the D/A converter module is made up of DAC chip and second voltage follower, described
Analog-to-digital conversion module is made up of ADC chips and a reference source, and the ADC chips are connected by a reference source with DAC chip, the master control
Device processed is connected by DAC control lines with DAC chip, to adjust output voltage, the D/A converter module through second voltage with
With after device by bias signal line with asking poor amplification module to be connected, the ADC chips pass through ADC output lines and master controller and connected
Connect, the input of the ADC chips is connected with secondary amplification module.
Beneficial effects of the present invention are：Microprocessor quickly obtains the substantially strong and weak feelings of uv power by comparator
Condition.When uv power is smaller, then microprocessor control D/A converter module reduction biasing increases secondary amplification module
Multiplication factor, under faint light intensity, remains to good resolution ratio so that the minimum range of harvester is expanded；Work as purple
When outer luminous power is very big, microprocessor control D/A converter module improves biasing, and reduces secondary multiplication factor so that final defeated
Go out voltage in rational scope, precision is not sacrificed while adding maximum range.
Brief description of the drawings
Fig. 1 detects the structural schematic block diagram of range expanding device for a kind of UV power of the invention；
Fig. 2 is the structural schematic block diagram of Signal-regulated kinase in Fig. 1；
Fig. 3 is to seek the structural schematic block diagram of poor amplification module in Fig. 1；
Fig. 4 is the structural schematic block diagram of secondary amplification module in Fig. 1；
Fig. 5 is analog-to-digital conversion module and the structural schematic block diagram of D/A converter module in Fig. 1；
Fig. 6 is the structural schematic block diagram of master controller in Fig. 1.
In figure：2- ultraviolet photodiodes；7- Signal-regulated kinases；8- seeks poor amplification module；9- level amplification module；
10- analog-to-digital conversion modules；11- master controllers；12- comparators；13- D/A converter modules；14- electric currents turn voltage module；At the beginning of 15-
Level amplifying circuit；16- zeroing circuits；17- analog signal lines；18- bias signal lines；19- low pass filters；20- first voltages
Follower；21- instrument amplifiers；23- in-phase amplifiers；24- resistor networks；25- analog switches；26- comparative result output lines；
27- multiplication factor control lines；28-DAC control lines；29-DAC chips；30- second voltage followers；31- a reference sources；32-ADC
Chip；33-ADC output lines；34- microprocessors；35- crystal oscillators.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages of the present invention and characteristic energy
It is easy to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Referring to Fig. 1~6, a kind of UV power detects range expanding device, including ultraviolet light photo diode 2, signal condition
Module 7, poor amplification module 8, secondary amplification module 9, analog-to-digital conversion module 10, master controller 11, comparator 12 and digital-to-analogue is asked to turn
Change the mold block 13, ultraviolet photodiode 2 is connected with Signal-regulated kinase 7, Signal-regulated kinase 7 by analog signal line 17 successively
With asking poor amplification module 8 and secondary amplification module 9 to be connected, the output end of secondary amplification module 9 respectively with analog-to-digital conversion module 10
Connected with the input of comparator 12, the output end of analog-to-digital conversion module 10 and comparator 12 is connected with master controller 11 respectively,
Master controller 11 adjusts the output voltage of D/A converter module 13, the output end of D/A converter module 13 by DAC control lines 28
By bias signal line 18 with asking poor amplification module 8 to be connected.
In the present embodiment, Signal-regulated kinase 7 turns voltage module 14, primary amplifying circuit 15 and zeroing circuit by electric current
16 are constituted, and turning voltage module 14 through electric current after the reception ultraviolet light photo output current signal of ultraviolet photodiode 2 is converted to simulation
Voltage signal, primary amplifying circuit 15 receive electric current turn voltage module 14 output analog voltage signal after be amplified it is defeated
Go out, by analog signal line 17 with asking poor amplification module 8 to be connected, zeroing circuit 16 is connected with primary amplifying circuit 15.
In the present embodiment, poor amplification module 8 is sought by low pass filter 19, first voltage follower 20 and instrument amplifier
21 are constituted, and the output end of low pass filter 19 is connected with the positive input terminal of instrument amplifier 21, the input of low pass filter 19
It is connected by analog signal line 17 with Signal-regulated kinase 7, output end and the instrument amplifier 21 of first voltage follower 20
Negative input end is connected, and the input of first voltage follower 20 is connected by bias signal line 18 with D/A converter module 13, instrument
The output end of table amplifier 21 is connected with secondary amplification module 9.
In the present embodiment, secondary amplification module 9 is made up of in-phase amplifier 23, resistor network 24 and analog switch 25,
The input of in-phase amplifier 23 with asking poor amplification module 8 to be connected, output end respectively with analog-to-digital conversion module 10 and comparator 12
Connection, comparator 12 sends data to master controller 11 by comparative result output line 26, and master controller 11 passes through times magnification
Number control line 27 is connected after analog switch 25 and resistor network 24 with in-phase amplifier 23, to adjust secondary amplification module 9
Multiplication factor.
In the present embodiment, master controller 11 is made up of microprocessor 34 and crystal oscillator 35, and crystal oscillator 35 connects with microprocessor 34
Connect, microprocessor 34 is connected with analog-to-digital conversion module 10, comparator 12, secondary amplification module 9 and D/A converter module 13 respectively.
In the present embodiment, D/A converter module 13 is made up of DAC chip 29 and second voltage follower 30, analog-to-digital conversion
Module 10 is made up of ADC chips 32 and a reference source 31, and ADC chips 32 are connected by a reference source 31 with DAC chip 29, master controller
11 are connected by DAC control lines 28 with DAC chip 29, to adjust output voltage, D/A converter module 13 through second voltage with
With after device 30 by bias signal line 18 with asking poor amplification module 8 to be connected, ADC chips 32 pass through ADC output lines 33 and main control
Device 11 is connected, and the input of ADC chips 32 is connected with secondary amplification module 9.
The operation principle of the present embodiment is：Ultraviolet photodiode 2 receives output current signal after ultraviolet light, turns through electric current
Analog voltage signal is converted to after voltage module 14, it is amplified that data signal output is converted to by analog-to-digital conversion module 10；
Microprocessor 34 quickly obtains the substantially strong and weak situation of uv power by comparator 12.It is micro- when uv power is smaller
The control reduction biasing of D/A converter module 13 of processor 34, then increases the multiplication factor of secondary amplification module 9, in faint light intensity
Under, remain to good resolution ratio so that the minimum range of harvester is expanded；When uv power is very big, micro- place
Manage the control D/A converter module 13 of device 34 and improve biasing, and reduce secondary multiplication factor, obtain final output voltage in rational model
In enclosing, precision is not sacrificed while adding maximum range；It is defeated that D/A converter module 13 is gathered simultaneously in analog-to-digital conversion module 10
The bias voltage and light intensity signal voltage gone out；The transformation result of analog-to-digital conversion module 10 and the biasing phase of D/A converter module 13
Plus, with reference to multiplication factor, you can calculate uv power.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent is defined.
Claims (6)
1. a kind of UV power detects range expanding device, it is characterised in that including ultraviolet light photo diode, signal condition mould
Block, poor amplification module, secondary amplification module, analog-to-digital conversion module, master controller, comparator and D/A converter module are asked, it is described
Ultraviolet photodiode is connected with Signal-regulated kinase, and the Signal-regulated kinase is by analog signal line successively with asking poor amplification
Module and the connection of secondary amplification module, the output end of the secondary amplification module are defeated with analog-to-digital conversion module and comparator respectively
Enter end connection, the output end of the analog-to-digital conversion module and comparator is connected with master controller respectively, and the master controller passes through
DAC control lines adjust the output voltage of D/A converter module, the output end of the D/A converter module by bias signal line with
Poor amplification module is asked to connect.
2. a kind of UV power detection range expanding device according to claim 1, it is characterised in that：The signal condition
Module turns voltage module, primary amplifying circuit and zeroing circuit by electric current and constituted, and the ultraviolet photodiode receives ultraviolet light
Turn voltage module through electric current after electricity output current signal and be converted to analog voltage signal, the primary amplifying circuit receives electric current
Output is amplified after the analog voltage signal for turning voltage module output, by analog signal line with asking poor amplification module to be connected,
The zeroing circuit is connected with primary amplifying circuit.
3. a kind of UV power detection range expanding device according to claim 1, it is characterised in that：It is described to ask poor amplification
Module is made up of low pass filter, first voltage follower and instrument amplifier, the output end and instrument of the low pass filter
The positive input terminal connection of amplifier, the input of the low pass filter is connected by analog signal line with Signal-regulated kinase,
The output end of the first voltage follower and the negative input end of instrument amplifier are connected, the input of the first voltage follower
End is connected by bias signal line with D/A converter module, and the output end of the instrument amplifier is connected with secondary amplification module.
4. a kind of UV power detection range expanding device according to claim 1, it is characterised in that：The secondary amplification
Module is made up of in-phase amplifier, resistor network and analog switch, and the input of the in-phase amplifier is with seeking poor amplification module
Connection, output end is connected with analog-to-digital conversion module and comparator respectively, and the comparator is by comparative result output line by data
Transmit to master controller, the master controller is mutually amplified by multiplication factor control line after analog switch and resistor network with same
Device is connected, the multiplication factor to adjust secondary amplification module.
5. a kind of UV power detection range expanding device according to claim 1, it is characterised in that：The master controller
Be made up of microprocessor and crystal oscillator, the crystal oscillator is connected with microprocessor, the microprocessor respectively with analog-to-digital conversion module, ratio
Compared with device, secondary amplification module and D/A converter module connection.
6. a kind of UV power detection range expanding device according to claim 1, it is characterised in that：The digital-to-analogue conversion
Module is made up of DAC chip and second voltage follower, and the analog-to-digital conversion module is made up of ADC chips and a reference source, described
ADC chips are connected by a reference source with DAC chip, and the master controller is connected by DAC control lines with DAC chip, to adjust
Output voltage is saved, the D/A converter module by bias signal line and asks poor amplification module to connect after second voltage follower
Connect, the ADC chips are connected by ADC output lines with master controller, the input of the ADC chips connects with secondary amplification module
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450486.2A CN107202635B (en) | 2017-06-15 | 2017-06-15 | A kind of UV power detection range expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710450486.2A CN107202635B (en) | 2017-06-15 | 2017-06-15 | A kind of UV power detection range expanding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107202635A true CN107202635A (en) | 2017-09-26 |
| CN107202635B CN107202635B (en) | 2019-02-22 |
Family
ID=59907364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710450486.2A Active CN107202635B (en) | 2017-06-15 | 2017-06-15 | A kind of UV power detection range expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107202635B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560150A (en) * | 2004-03-02 | 2005-01-05 | 熊春宁 | Multiple anti-forge ink with memory code and testing method thereof |
| JP2006047069A (en) * | 2004-08-03 | 2006-02-16 | Funai Electric Co Ltd | Lighting system |
| JP2007298278A (en) * | 2006-04-27 | 2007-11-15 | Sony Corp | Display inspection system |
| CN102221653A (en) * | 2011-03-30 | 2011-10-19 | 四川省电力公司自贡电业局 | Electric power equipment discharge detector based on ultraviolet light power method |
-
2017
- 2017-06-15 CN CN201710450486.2A patent/CN107202635B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560150A (en) * | 2004-03-02 | 2005-01-05 | 熊春宁 | Multiple anti-forge ink with memory code and testing method thereof |
| JP2006047069A (en) * | 2004-08-03 | 2006-02-16 | Funai Electric Co Ltd | Lighting system |
| JP2007298278A (en) * | 2006-04-27 | 2007-11-15 | Sony Corp | Display inspection system |
| CN102221653A (en) * | 2011-03-30 | 2011-10-19 | 四川省电力公司自贡电业局 | Electric power equipment discharge detector based on ultraviolet light power method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107202635B (en) | 2019-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4995735B2 (en) | Matching load mismatch in coupler-based amplifiers | |
| CN101158590A (en) | Complete digitisation 4 quadrant detector detecting laser beam deflection angle device and method | |
| CN105743340B (en) | The bias generating circuit of avalanche photodide and relevant control circuit | |
| CN102620756A (en) | Phase sensitive demodulator (PSD) signal single-channel processing method based on modulated laser, and processing circuit | |
| CN101106360A (en) | DC offset cancellation for a trans-impedance amplifier | |
| CN204694347U (en) | A kind of photoelectric detection circuit with low noise | |
| ATE331350T1 (en) | ADAPTIVE MATRIX SENSOR AND ELECTRICAL CIRCUIT THEREOF | |
| CN113138018A (en) | High signal-to-noise ratio broadband balance homodyne detector for quantum random number generation | |
| CN210038751U (en) | Infrared touch screen signal processing circuit | |
| CN107202635A (en) | A kind of UV power detects range expanding device | |
| CN106781424A (en) | Infrared receiving circuit | |
| CN106787683A (en) | A kind of self-adaptive current voltage conversion circuit | |
| WO2021129794A1 (en) | Auxiliary control circuit for power amplification module, power amplification module, and communication device | |
| CN103323110A (en) | Photoelectric detection control circuit | |
| CN109600122A (en) | Variable trans-impedance amplifier current-voltage conversion circuit | |
| CN100438380C (en) | Carrier optical receiver front feed automatic gain control method and optical receiver using same | |
| CN2927011Y (en) | Multi-band ultraviolet radiation measuring device based on gallium-aluminum nitride | |
| CN208547555U (en) | The circuit and particulate matter sensors of particulate matter sensors | |
| CN111106867A (en) | Detection module suitable for continuous variable quantum random number generation | |
| CN105606213B (en) | A kind of laser micropulse peak power test device | |
| CN110855370A (en) | MZ modulator array bias control system based on STM32 treater | |
| CN202652147U (en) | Operational amplifying device with adjustable gain | |
| CN206370152U (en) | Infrared receiving circuit | |
| CN113852420A (en) | Adaptive filtering optical power detection circuit and method | |
| WO2013075397A1 (en) | Photoelectric sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |