CN109992029A - A kind of multistable pressure feedback regulation control system based on xenon source - Google Patents

A kind of multistable pressure feedback regulation control system based on xenon source Download PDF

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Publication number
CN109992029A
CN109992029A CN201910227032.8A CN201910227032A CN109992029A CN 109992029 A CN109992029 A CN 109992029A CN 201910227032 A CN201910227032 A CN 201910227032A CN 109992029 A CN109992029 A CN 109992029A
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voltage stabilizing
power supply
stabilizing module
module
photoelectric conversion
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CN201910227032.8A
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CN109992029B (en
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吴坚
郭磊钊
叶杏
陈涛
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Beijing University of Technology
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Beijing University of Technology
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10Regulating voltage or current
    • G05F1/46Regulating voltage or current wherein the variable actually regulated by the final control device is dc

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A kind of multistable pressure feedback regulation control system based on xenon source, belongs to ultraviolet source domain.It is characterized by: using single-chip microcontroller as controller, xenon source output par, c and xenon lamp power supply Voltage stabilizing module importation respectively draw all the way feedback signal as controller input, controller exports after analyzing and determining to two kinds of feedbacks, and be applied on relay, the Voltage stabilizing module of access is determined by controlling the switch state of relay;To realize the control to the Voltage stabilizing module for accessing circuit in power supply;When light source output energy changes, the Voltage stabilizing module of access power supply is adjusted in time by feedback device and single-chip computer control system, so that power supply output reaches stable, to realize the stability for changing xenon source by the adjusting of electricity means.

Description

A kind of multistable pressure feedback regulation control system based on xenon source
Technical field
The invention belongs to ultraviolet source domains.
Background technique
English physicist He Xieer in 1800 has found that sightless heat is penetrated outside the feux rouges end of prism spectrum Line --- infrared ray.Special (Ritte) is extremely interested in this discovery in roentgen, he believes firmly that physics things has two Pole symmetry, it is believed that since having invisible radiation except visible spectrum red end, then also one except the purple end of visible spectrum Surely it can be found that invisible radiation.Finally at one day of 1801, he just had one bottle of silver chloride solution at hand at that time.People It had learned that at that time, silver chlorate can decompose when being heated or subjected to illumination and silver is precipitated, and the silver of precipitation is due to particle very little and darkly Color.In special (Ritte) come round superchlorination silver just to determine the composition other than sunlight seven-colour-light, he has been dipped in a little with a piece of paper piece Silver chloride solution, and the scraps of paper are placed on the outside of white light purple light of seven-colour-light after prism dispersion.Soon, Li Teer is just sent out Substance significantly blackening on the existing scraps of paper.He has done many researchs again, finally determine the scraps of paper why blackening must be by A kind of irradiation of invisible ray.In spy the black light near outside purple light is called " deoxidation ray " to emphasize being chemical anti- It answers.In the near future, this noun is reduced to " chemical light ", and becomes noun well-known at that time.Until 1802, change It learns light and is finally renamed as " ultraviolet light ".
In recent decades, the development and application of ultraviolet light source is in the period of a high speed development, the type of light source It is growing with application range, the wave band and A band (400-320nm) divided according to each wave-length coverage of ultraviolet light;B wave band (320-280rim): wave band c (280-200nm);Vacuum ultraviolet wave band (200-10nm), the development of light source are gradually to fill out It mends the light source kind blank of each ultra-violet bands to carry out, according to existing kind and specification, partly meets application Needs.UV application scales speed faster, such as the solidifications of the light-sensitive materials such as photosensitive paint, ink, photomechanical production, The application of the fields such as photoetching, duplicating, skin disease, Medicine and Surgery disease treatment, sterilizing, health care, fluorescence analysis has quick hair Exhibition.So the mankind are developing and utilizing ultraviolet light again while protectiving ultraviolet injures, artificial ultraviolet light source is this answers Premise and condition.
The one kind of xenon source as ultraviolet source, has been achieved with extensive use, including all kinds of photocatalysis experiments (such as Photolysis water hydrogen, light degradation pollutant;Simulate the light-exposed Acceleration study of daylight), all kinds of simulation daylight ultraviolet band Acceleration studies etc. Research etc..In some experiments, the requirement to xenon source stability is also quite high.
With the development of industrialization, electricity consumption greatly increases, especially in peak times of power consumption, line voltage can hurried decline, Sometimes 160V-170V can be dropped to, therefore, line voltage can change within the scope of 160V-240V.For linear direct current regulated power supply For, it is usually all to adjust the adjustable device in power supply stabilization circuit by feedback signal to go to realize, but work as network voltage When changing excessive, the adjusting output of this regulative mode also has certain fluctuation, causes xenon source unstable.
Voltage ripple of power network is excessive and the influence of environment factor in order to weaken, and improves the stabilization of xenon lamp in the presence of a harsh environment The anti-interference of degree and xenon lamp power supply, this patent propose a kind of multistable pressure feedback regulation control system based on xenon source.
Summary of the invention
The multistable pressure feedback regulation control system based on xenon source that the object of the present invention is to provide a kind of, using monolithic Machine respectively draws feedback signal work all the way as controller, in xenon source output par, c and xenon lamp power supply Voltage stabilizing module importation For controller input, controller exports after analyzing and determining to two kinds of feedbacks, and is applied on relay, by controlling relay The switch state of device determines the Voltage stabilizing module of access.To realize the control to the Voltage stabilizing module for accessing circuit in power supply. In power supply, the quantity of Voltage stabilizing module is n, and the input voltage between module and module is not identical, and output voltage is identical.And Voltage stabilizing module is arranged according to module input voltage by gradient.N is bigger, and the precision of control is higher, when power supply is in running order, only There is an access circuit in n module.In the design, for ease of description, using n=3.In order to reach regulating effect It to best controllable state, needs to meet following formula, it is assumed that the minimum of Voltage stabilizing module importation fluctuation range is i, highest Value is j, number of modules n, the then input voltage value of m-th of module are as follows:
It, can be by feedback device and single-chip computer control system in time to access electricity when light source output energy changes The Voltage stabilizing module in source is adjusted, so that power supply output reaches stable, is changed to realize by the adjusting of electricity means The stability of xenon source.
In photo-translating system, photoelectric conversion is carried out using photosensitive triode.But when there are multiple light sources in environment When, can to xenon lamp export light beam generate interference, therefore, this patent for photoelectric conversion black box devise photoelectric conversion black box come To solve this problem.
This system is as shown in Fig.1 and Fig.2, main most of comprising four, is feedback fraction, singlechip control part, electricity respectively Source part and xenon source part.Wherein feedback fraction includes optical path feedback system and electric signal feedback system;Single-chip microcontroller control System part includes single-chip computer and its peripheral circuit, and power unit includes DC/DC module and xenon lamp power supply circuit.
Photoelectric conversion black box is made of four parts, is photoelectric conversion black box shell, attenuator, optical mirror and light respectively Quick triode.It is specific as shown in Figure 3.
Negative-feedback xenon lamp power supply control system schematic diagram of the Fig. 1 based on xenon source
Relational graph between Fig. 2 power supply and single-chip microcontroller
Fig. 3 photoelectric conversion black box throws face schematic diagram
A is power supply, including xenon lamp power supply circuit and DC/DC Voltage stabilizing module;B is singlechip control part, by single-chip microcontroller and Its external circuit composition;C is feedback system, including current feedback and optical path feedback;K is xenon lamp power supply circuit, and J is photoelectric conversion Black box;D is xenon source;E is photoelectric conversion module cabinet;F is attenuator;G is phototriode, and H is optical mirror.
Specific embodiment
The specific workflow of the device is as follows:
1, when the output beam stability of xenon lamp changes, it is irradiated to the light beam also corresponding generation of photoelectric conversion black box Change
2, the optical signal is passed to single-chip microcontroller after the conversion of photoelectric conversion black box
3, single-chip microcontroller, which is learnt, reads the electric signal of electric signal feedback system feedback after light intensity changes, and judges that it has not It changes, it is such as unchanged, then assert that changeization is caused by external environment;Variation is such as generated, then assert it is that power supply unit changes.
4, it is after power unit changes that single-chip microcontroller, which analyzes, and the corresponding relay of meeting is controlled.If fed back to Signal become smaller, then adjust to inputting small Voltage stabilizing module gradient direction, until stablizing.On the contrary, then to another gradient Direction is adjusted.
5, after being adjusted to Voltage stabilizing module, light source restores to stablize.
It illustrates a kind of state, preferably to describe workflow, it will be assumed that the input of Voltage stabilizing module 1 is minimum, followed by The input of Voltage stabilizing module 2, Voltage stabilizing module 3 is maximum.Assuming that access circuit is pressure stabilizing 2 in alternating current 220V.When line voltage by 220V fades to 160V, and the input voltage of Voltage stabilizing module 2, which can reduce, at this time causes output voltage to reduce, and subtracts with xenon source brightness It is weak.Then the light beam of the decrease is passed to photoelectric conversion black box, and single-chip microcontroller is passed to after conversion.Single-chip microcontroller judges xenon source After dying down, the electric signal for reading electric signal feedback system can be removed, it is found that the signal also weakens.Then single-chip microcontroller is dealt with, first Voltage stabilizing module 1 is connected, and then disconnects Voltage stabilizing module 2, which can make output there are the slight fluctuations of moment, but can stand Disappear.After the completion of switching, xenon lamp light beam restores to original light intensity.
Photoelectric conversion black box is a length of 2h, and width h, the cuboid of a height of h is hollow in cuboid, in addition to rectangle above, Remaining five face is the shell of opaque aluminum alloy material, and aluminium alloy inner surface is coated with pitch-dark.Above there are two rectangles etc. Big square composition, one of square is identical as other five faces, another square is optical attenuator.Optics is anti- Light microscopic and bottom surface are at an angle of a and are mounted on the side in black box, and a is 45 degree, and optical mirror length isOther side centre Phototriode is placed, phototriode center is respectively 0.5h, 0.5h at a distance from each side in photoelectric conversion black box bottom, 0.5h, 1.5h.
Xenon source is fixed perpendicular to attenuator.When the device is operated, the light that xenon source issues is opened perpendicular to attenuator Beginning to irradiate, light is irradiated in optical mirror after passing through attenuator, after reflecting mirror reflects, light beam and bottom surface parallel radiation to light On quick triode.Electric signal is converted to through photosensitive triode.
The innovative point of this patent is as follows:
1, compared with traditional linear direct current regulated power supply, the present apparatus can still ensure that output when power network fluctuation is larger Xenon source is stablized.
2, the present apparatus is using a kind of completely new feedback regulation mode, difference with it is traditional by software adjustment adjustable device into Row is adjusted, but Voltage stabilizing module is adjusted from hardware by the way of feedback, and the module can be n.
3, in order to weaken the influences of other light sources in environment, photoelectric conversion black box is devised.
Major parameter content:
1, the input voltage of each Voltage stabilizing module is arranged using gradient type, the equivalent arrangement in fluctuation range.Assuming that pressure stabilizing mould The minimum of block importation fluctuation range is i, peak j, number of modules n, the then input voltage value of m-th of module Are as follows:
2, photoelectric conversion black box length is set as 2h, width h, the cuboid of a height of h.
3, in addition to attenuator, rest part inner surface is coated with pitch-dark photoelectric conversion black box.
4, square composition big there are two rectangles above etc., it is one of square identical as other five faces, separately One square is optical attenuator.
5, in photoelectric conversion black box, optical mirror and bottom surface are at an angle of a and are mounted on the side in black box, and a is 45 degree, Optical mirror length is

Claims (3)

1. a kind of multistable pressure feedback regulation control system based on xenon source, it is characterised in that: using single-chip microcontroller as control It is defeated as controller respectively to draw feedback signal all the way in xenon source output par, c and xenon lamp power supply Voltage stabilizing module importation for device Enter, controller exports after analyzing and determining to two kinds of feedbacks, and is applied on relay, by the switch shape for controlling relay State determines the Voltage stabilizing module of access;To realize the control to the Voltage stabilizing module for accessing circuit in power supply;
In power supply, the quantity of Voltage stabilizing module is n, and the input voltage between module and module is not identical, and output voltage is identical; And Voltage stabilizing module is arranged according to module input voltage by gradient;N is bigger, and the precision of control is higher, and power supply is in running order When, an access circuit in only n module;
It in order to make regulating effect reach best controllable state, needs to meet following formula, it is assumed that the fluctuation of Voltage stabilizing module importation The minimum of range is i, peak j, number of modules n, the then input voltage value of m-th of module are as follows:
When light source output energy changes, pass through feedback device and the single-chip computer control system pressure stabilizing to access power supply in time Module is adjusted, so that power supply output reaches stable, changes xenon source by the adjusting of electricity means to realize Stability.
2. a kind of multistable pressure feedback regulation control system based on xenon source according to claim 1, it is characterised in that: In photo-translating system, photoelectric conversion is carried out using photosensitive triode;But when in environment there are when multiple light sources, design Photoelectric conversion black box;
Photoelectric conversion black box is made of four parts, is photoelectric conversion black box shell, attenuator, optical mirror and photosensitive three respectively Pole pipe;
Photoelectric conversion black box is a length of 2h, and width h, the cuboid of a height of h is hollow in cuboid, in addition to rectangle above, remaining Five faces are the shell of opaque aluminum alloy material, and aluminium alloy inner surface is coated with pitch-dark;There are two wait big for rectangle above Square composition, one of square is identical as other five faces, another square is optical attenuator;Optical mirror It is at an angle of the side that a is mounted in black box with bottom surface, the optical attenuator being square above this side, a is 45 degree, optics Reflective mirror length isOther side centre places phototriode, phototriode center and photoelectric conversion black box bottom The distance on each side is respectively 0.5h, 0.5h, 0.5h, 1.5h;
Xenon source is fixed perpendicular to attenuator;When the device is operated, the light that xenon source issues starts to shine perpendicular to attenuator It penetrates, light is irradiated in optical mirror after passing through attenuator, after reflecting mirror reflects, light beam and bottom surface parallel radiation to photosensitive three In pole pipe;Electric signal is converted to through photosensitive triode.
3. a kind of application method of the multistable pressure feedback regulation control system based on xenon source as described in claim 1, It is characterized in that, specific workflow is as follows:
1), when the output beam stability of xenon lamp changes, the light beam for being irradiated to photoelectric conversion black box, which also corresponds to, to be changed Become
2), the optical signal is passed to single-chip microcontroller after the conversion of photoelectric conversion black box
3), single-chip microcontroller learns the electric signal that electric signal feedback system feedback is read after light intensity changes, and judge its either with or without Variation, it is such as unchanged, then assert that changeization is caused by external environment;Variation is such as generated, then assert it is that power supply unit changes;
4) it is that will do it control after power unit changes that, single-chip microcontroller, which analyzes,;If the signal fed back to becomes smaller, Then to small Voltage stabilizing module gradient direction adjusting is inputted, until stablizing;On the contrary, then being adjusted to another gradient direction;
5) after, being adjusted to Voltage stabilizing module, light source restores to stablize.
CN201910227032.8A 2019-03-25 2019-03-25 Multi-voltage-stabilization feedback regulation control system based on xenon lamp light source Expired - Fee Related CN109992029B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110658142A (en) * 2019-10-30 2020-01-07 苏州卫水环保科技有限公司 Total nitrogen analyzer signal detection system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102685998A (en) * 2012-05-04 2012-09-19 天津大学 Pulse xenon lamp controller
CN205082036U (en) * 2015-08-12 2016-03-09 郑州职业技术学院 Xenon lamp power control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102685998A (en) * 2012-05-04 2012-09-19 天津大学 Pulse xenon lamp controller
CN205082036U (en) * 2015-08-12 2016-03-09 郑州职业技术学院 Xenon lamp power control system

Non-Patent Citations (1)

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Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110658142A (en) * 2019-10-30 2020-01-07 苏州卫水环保科技有限公司 Total nitrogen analyzer signal detection system and method

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