CN110160645A - A kind of ultraviolet detection prior-warning device based on diamond - Google Patents
A kind of ultraviolet detection prior-warning device based on diamond Download PDFInfo
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- CN110160645A CN110160645A CN201910394590.3A CN201910394590A CN110160645A CN 110160645 A CN110160645 A CN 110160645A CN 201910394590 A CN201910394590 A CN 201910394590A CN 110160645 A CN110160645 A CN 110160645A
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 36
- 239000010432 diamond Substances 0.000 title claims abstract description 36
- 238000000825 ultraviolet detection Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 230000003321 amplification Effects 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000000875 corresponding effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- 230000009610 hypersensitivity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000000007 visual effect 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
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The present invention relates to a kind of ultraviolet detection prior-warning device based on diamond, comprising: the optical signal detected is converted into electric signal output by diamond solar blind UV electric explorer；Data processing module exports high level in the ultraviolet light for detecting non-solar-blind band；Single chip control module receives the high level that data processing module issues, and issues alarm signal；Voice alarm module receives the alarm signal of one-chip computer module, issues voice alarm；Display screen part shows the danger signal detected.The present invention is detected using ultraviolet light of the diamond solar blind UV electric explorer to non-solar-blind band, can be realized the detection to day blind UV signal source, and then is realized to dangerous early warning, is taken timely measure, in the early stage by dangerous item station.The present invention adapts to the various environment such as high temperature and pressure and radiation, is suitable for the fields such as military national defence, industry security detection field, Civil High Pressure arc-detection, applied widely.
Description
Technical field
The invention belongs to ultraviolet detection early warning field more particularly to a kind of ultraviolet detection prior-warning devices based on diamond.
Background technique
Ultraviolet detection technology is the dual-use photodetection skill to grow up after infrared and Laser Detection Technique
Art, the Detection Techniques have many advantages, such as accuracy rate height, good confidentiality, not by environmental disturbances.Ultraviolet light wave is a kind of wavelength in 10-
The electromagnetic wave of 400nm, the ultraviolet light wave that medium wavelength is shorter than 280nm are absorbed by ozone layer in atmosphere so that this wave band
Ultraviolet radioactive zero is almost decayed near ground level, like natural darkroom, which is referred to as " day-old chick ", this just for
The ultraviolet light wave of the detection ground region wave band provides a low backdrop window for precisely detecting.Since this is unique
Property, so that solar blind UV electric explorer compared with infrared and visible-light detector, has higher detection accuracy and accurate
Degree and lower rate of false alarm.
Due to the effect of ozone layer and gel particle in atmosphere, the solar radiation that wavelength is shorter than 280nm cannot be arrived
Up to earth surface.If detecting the signal of the non-solar-blind band in Near Ground, usually following three kinds of situations: one, certain is non-
Natural danger signal, such as firearm discharge, explosive charge, MISSILE LAUNCHING and high voltage transmission line electric leakage generate corona；Two, artificial
Manufacture the light source of day blind ultraviolet band；Three, such as strong lightning abnormal weather.Therefore, we can be by detecting the non-solar-blind band
UV signal determine whether that dangerous event occurs, such as: the transmitting and tracking of rocket or guided missile, high voltage transmission line
Electric leakage etc..After detecting these signals, we can take corresponding action in time, so as to reduce life and
The loss of property.For example, guided missile is in transmitting, the UV signal containing non-solar-blind band in wake flame, if it is possible to pass through spy
It surveys device and detects the signal in time, that can realize the interception and destruction to guided missile most possibly, so as to realize pair
Dangerous early warning.However, the light radiation naked eyes of non-solar-blind band be not it is observed that, so just needing by sensitive detection
Device captures these signals.Therefore it just needs us to design the solar blind ultraviolet detector with hypersensitivity, makes it not only
It can play a role in people's livelihood fields such as power grid security monitoring, environment and biochemistry detections, and can be in missile warning and alarm etc.
National defence is applied accordingly.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide one kind to be reported in early days
The alert day based on diamond blind ultraviolet prior-warning device.
In order to solve the above technical problems, the technical scheme is that a kind of ultraviolet detection early warning dress based on diamond
It sets, comprising:
Diamond solar blind UV electric explorer detects the ultraviolet light of non-solar-blind band in its detection range, and
The optical signal detected is converted into electric signal output；
Data processing module, including signal amplification circuit and voltage comparator circuit, the signal amplification circuit will test
To electric signal amplify processing, the voltage comparator circuit by after enhanced processing electric signal and reference voltage into
Row compares, and exports high level in the ultraviolet light for detecting non-solar-blind band；
Single chip control module receives the high level that the data processing module issues, and issues alarm signal, the electricity
The output end of pressure comparator circuit is electrically connected to the I/O input port of the single chip control module；
Voice alarm module receives the alarm signal that the one-chip computer module issues, and issues voice alarm, the voice reporting
The input terminal of alert module is electrically connected with the I/O output port of the single chip control module.
The signal amplification circuit includes emitter follower circuit and bias amplifier as a preferred technical solution,.
The voltage comparator circuit includes voltage comparator chip LM393 as a preferred technical solution,.
As a preferred technical solution, the voice alarm module be 4 tunnels isolation voice controller YT04,4 tunnel every
It include 4 tunnel alarm signal input terminals from voice controller YT04, the 4 tunnel alarm signal input terminal passes through a control respectively
Relay processed is electrically connected with the I/O output port of the corresponding single chip control module.
The single chip control module is also connected with display screen as a preferred technical solution,.
The display screen passes through the string of level shifting circuit and the single chip control module as a preferred technical solution,
Mouth circuit connection.
By adopting the above-described technical solution, the beneficial effects of the present invention are: the present invention passes through diamond solar blind UV
Electric explorer detects the ultraviolet light of non-solar-blind band, diamond solar blind UV electric explorer high-performance, anti-interference ability
By force, optical responsivity is high, detection accuracy is high, photoelectric conversion capacity is strong, can be realized visiting to day blind ultraviolet light signal source
It surveys, and then realizes to dangerous early warning, take timely measure, in the early stage by dangerous item station.The present invention adapts to high temperature
The various environment such as high pressure and radiation, and realize and the audio alert and display screen of day blind UV signal are shown.The present invention
Capable of being suitable for military national defence, being also applied for industry security detection, while leading with can be used for high-voltage fence electric leakage monitoring etc.
Domain, it is applied widely.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the schematic block circuit diagram of the embodiment of the present invention；
Fig. 2 is ultraviolet/visible absorption spectra figure of single-crystal diamond in the embodiment of the present invention；
Fig. 3 is the responsiveness curve of diamond solar blind UV electric explorer under a bias voltage in the embodiment of the present invention；
Fig. 4 is the circuit diagram of emitter follower in the embodiment of the present invention；
Fig. 5 is the circuit diagram of bias amplifier in the embodiment of the present invention；
Fig. 6 is the circuit diagram of voltage comparator circuit in the embodiment of the present invention；
Fig. 7 is the circuit diagram of single-chip microcontroller in the embodiment of the present invention；
Fig. 8 is the level shifting circuit schematic diagram of single-chip microcontroller and RS232 interface.
Specific embodiment
As shown in Figures 1 to 4, a kind of ultraviolet detection prior-warning device based on diamond, comprising:
Diamond solar blind UV electric explorer detects the ultraviolet light of non-solar-blind band in its detection range, and
The optical signal detected is converted into electric signal output.When there is the signal of non-solar-blind band in Near Ground, diamond day blind purple
The ultraviolet light lightwave signal of the non-solar-blind band detected will be converted into electric signal by outer photodetector, to realize to it
Detection.
Diamond belongs to semiconductor material with wide forbidden band, it is determined the absorption of ultraviolet light by its forbidden bandwidth.Buddha's warrior attendant
The band gap of stone is up to 5.5eV, and the corresponding band gap by wavelength is 225nm (be in non-solar-blind band), therefore it is only to day blind purple
The light wave of wave section has response.The diamond of solar blind ultraviolet detector is by microwave plasma enhanced chemical vapor deposition
(MPCVD) single-crystal diamond of the high-quality of equipment synthesis, ultraviolet/visible absorbance light of single-crystal diamond shown in Fig. 2
Spectrum, single-crystal diamond shows apparent absorption edge near 225nm, exactly corresponds to the optical band gap of diamond, can
The absorption in light-exposed region almost can be ignored.
The response of the solar blind ultraviolet detector of diamond prepared by single-crystal diamond under a bias voltage is shown in Fig. 3
It writes music line, according to its response curve: diamond solar blind UV electric explorer only has the solar blind UV wave of 200-225nm
Response, does not receive the electromagnetic wave in other regions, does not need the electric signal of solar blind ultraviolet detector output by filter filtering,
System processing information is few, strong antijamming capability, and diamond solar blind UV electric explorer optical responsivity is high, photoelectric conversion energy
Power is strong.Under a bias voltage, the value of dark current is very low, and detector performance is stablized, and brightness current ratio is big, the signal-to-noise ratio of device
The accuracy of height, test is high.
Data processing module, including emitter follower circuit, biased amplifier circuit, voltage comparator circuit.Emitter-base bandgap grading with
Common collector amplifying circuit is used with device circuit, for amplifying alternating current, to improve the bringing onto load of entire amplifying circuit
Ability.Connecting two circuits by emitter follower reduces the influence being directly connected between circuit, thus can play buffering
The effect of device.Biased amplifier circuit includes first order biasing circuit, for eliminating diamond solar blind UV electric explorer
Basic voltage；Second level amplifying circuit, for amplifying the voltage change of diamond solar blind UV electric explorer generation.Voltage ratio
Mainly the signal of input is identified and compared compared with device circuit, to realize the output of low and high level comparison result.If
There is non-solar-blind band signal, voltage comparator will export high level, otherwise output low level, the simulation that detector is detected
Signal is converted into digital signal.
Single chip control module receives the low and high level signal that data acquisition module issues, if data acquisition module issues
High level signal, single-chip microcontroller simultaneously issue alarm signal.The output end of voltage comparator circuit is electrically connected to single chip control module
I/O input port, single chip control module is realized with single-chip minimum system control core, in the present embodiment, single-chip microcontroller
Using STC89C52.
Voice alarm module receives the alarm signal that one-chip computer module issues, and issues voice alarm, voice alarm module
Input terminal is electrically connected with the I/O output port of single chip control module.
Voice alarm module is 4 tunnels isolation voice controller YT04, and 4 tunnels are isolated voice controller YT04 and alarm including 4 tunnels
Signal input terminal, 4 tunnel alarm signal input terminals pass through a control relay and corresponding single chip control module respectively
I/O output port electrical connection.YT04 voice alarm module is 4 tunnel light-coupled isolation speech control modules, is controlled by four tunnel contacts
System can access normally opened, normally-closed contact control, can also be controlled by high level signal, in the present embodiment, YT04 audio alert
Module realizes switch control by single-chip microcontroller control relay.When the relay accordingly accessed all the way receives the signal of single-chip microcontroller output
When relay contact closure, voice alarm module issues alarm sound, and prompting personnel make corresponding action.
In order to show that alarm signal, single chip control module are also electrically connected with display screen more visual and clearly.Display screen
It is electrically connected by level shifting circuit with the serial ports of single chip control module.Display screen use TFT screen, using RS232 interface with
Single-chip microcontroller is communicated.When there is dangerous situation generation, after single-chip microcontroller receives high level signal, the finger of display can be sent to display screen
It enables, shows preset pattern on a display screen.
The course of work of the invention is as follows:
After diamond solar blind UV electric explorer detects the light wave of day blind ultraviolet band, it can convert optical signal into
Electric signal.The electric signal is sent to voltage comparator circuit after emitter follower circuit, bias amplifier processing.?
The electric signal is compared by voltage comparator with reference voltage, to realize the output of low and high level.If it is blind to detect day
When band signal, voltage comparator will be to single-chip microcontroller input high level signal.Single-chip microcontroller is after receiving high level signal, meeting
Control signal is issued to voice alarm module, upon the reception of control signals, meeting signal an alert notifies voice alarm module
Related personnel is handled.At the same time, single-chip microcontroller can also issue corresponding command signal to display screen by standard interface,
Preset alarm figure is shown on display screen.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of ultraviolet detection prior-warning device based on diamond characterized by comprising
Diamond solar blind UV electric explorer detects the ultraviolet light of non-solar-blind band in its detection range, and will visit
The optical signal measured is converted into electric signal output；
Data processing module, including signal amplification circuit and voltage comparator circuit, what the signal amplification circuit will test
Electric signal amplifies processing, and the voltage comparator circuit compares the electric signal after enhanced processing with reference voltage
Compared with exporting high level in the ultraviolet light for detecting non-solar-blind band；
Single chip control module receives the high level that the data processing module issues, and issues alarm signal, the voltage ratio
Compared with the I/O input port that the output end of device circuit is electrically connected to the single chip control module；
Voice alarm module receives the alarm signal that the one-chip computer module issues, and issues voice alarm, the audio alert mould
The input terminal of block is electrically connected with the I/O output port of the single chip control module.
2. a kind of ultraviolet detection prior-warning device based on diamond as described in claim 1, it is characterised in that: the signal is put
Big circuit includes emitter follower circuit and bias amplifier.
3. a kind of ultraviolet detection prior-warning device based on diamond as described in claim 1, it is characterised in that: the voltage ratio
It include voltage comparator chip LM393 compared with device circuit.
4. a kind of ultraviolet detection prior-warning device based on diamond as described in claim 1, it is characterised in that: the voice reporting
Alert module is 4 tunnels isolation voice controller YT04, and the 4 tunnel isolation voice controller YT04 includes 4 tunnel alarm signal input terminals
Son, the 4 tunnel alarm signal input terminal pass through a control relay and the corresponding single chip control module respectively
The electrical connection of I/O output port.
5. a kind of ultraviolet detection prior-warning device based on diamond as described in claim 1, it is characterised in that: the single-chip microcontroller
Control module is connected with display screen.
6. a kind of ultraviolet detection prior-warning device based on diamond as claimed in claim 5, it is characterised in that: the display screen
It is connect by level shifting circuit with the serial port circuit of the single chip control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910394590.3A CN110160645A (en) | 2019-05-13 | 2019-05-13 | A kind of ultraviolet detection prior-warning device based on diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910394590.3A CN110160645A (en) | 2019-05-13 | 2019-05-13 | A kind of ultraviolet detection prior-warning device based on diamond |
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| Publication Number | Publication Date |
|---|---|
| CN110160645A true CN110160645A (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910394590.3A Pending CN110160645A (en) | 2019-05-13 | 2019-05-13 | A kind of ultraviolet detection prior-warning device based on diamond |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684829A (en) * | 2020-12-22 | 2021-04-20 | 同济大学 | Temperature detection control system and method for MPCVD device |
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|---|---|---|---|---|
| CN101097162A (en) * | 2006-06-30 | 2008-01-02 | 株式会社神户制钢所 | Ultraviolet mornitoring system and ultraviolet irradiation device |
| CN201034728Y (en) * | 2007-04-18 | 2008-03-12 | 刘飞 | Intelligent flame testing apparatus |
| CN101237009A (en) * | 2008-02-29 | 2008-08-06 | 上海大学 | Making method for ultraviolet detector with common plane grid structure |
| JP2008192709A (en) * | 2007-02-01 | 2008-08-21 | Ushio Inc | Vacuum ultraviolet ray monitor and vacuum ultraviolet ray irradiator using the same |
| CN201188030Y (en) * | 2006-11-17 | 2009-01-28 | 宫卓立 | Digital flame detector |
| CN104810411A (en) * | 2014-01-24 | 2015-07-29 | 中国科学院上海微***与信息技术研究所 | Photoconductive ultraviolet detector and manufacturing method thereof |
| CN106920360A (en) * | 2017-03-23 | 2017-07-04 | 南通大学 | Remote fire method of real-time and system based on AlGaN base solar blind ultraviolet detectors |
-
2019
- 2019-05-13 CN CN201910394590.3A patent/CN110160645A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101097162A (en) * | 2006-06-30 | 2008-01-02 | 株式会社神户制钢所 | Ultraviolet mornitoring system and ultraviolet irradiation device |
| CN201188030Y (en) * | 2006-11-17 | 2009-01-28 | 宫卓立 | Digital flame detector |
| JP2008192709A (en) * | 2007-02-01 | 2008-08-21 | Ushio Inc | Vacuum ultraviolet ray monitor and vacuum ultraviolet ray irradiator using the same |
| CN201034728Y (en) * | 2007-04-18 | 2008-03-12 | 刘飞 | Intelligent flame testing apparatus |
| CN101237009A (en) * | 2008-02-29 | 2008-08-06 | 上海大学 | Making method for ultraviolet detector with common plane grid structure |
| CN104810411A (en) * | 2014-01-24 | 2015-07-29 | 中国科学院上海微***与信息技术研究所 | Photoconductive ultraviolet detector and manufacturing method thereof |
| CN106920360A (en) * | 2017-03-23 | 2017-07-04 | 南通大学 | Remote fire method of real-time and system based on AlGaN base solar blind ultraviolet detectors |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684829A (en) * | 2020-12-22 | 2021-04-20 | 同济大学 | Temperature detection control system and method for MPCVD device |
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Application publication date: 20190823 |