CN104568761A - Photoelectric detection device - Google Patents
Photoelectric detection device Download PDFInfo
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- CN104568761A CN104568761A CN201410822112.5A CN201410822112A CN104568761A CN 104568761 A CN104568761 A CN 104568761A CN 201410822112 A CN201410822112 A CN 201410822112A CN 104568761 A CN104568761 A CN 104568761A
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- light
- photoelectric
- phototube coupling
- electric signal
- photoelectric detection
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Abstract
The invention relates to a photoelectric detection device which comprises a photoelectric transmitter and a photoelectric receiver, wherein a light isolation channel is formed between the photoelectric transmitter and the photoelectric receiver; the photoelectric receiver comprises a photoelectric element, a signal amplification and adjustment device, an A/D (analogue/digital) conversion circuit and an acquisition device which are connected in sequence; the light isolation channel is used for receiving the light intensity and transmitting the light intensity to the photoelectric element, the photoelectric element is used for converting the light intensity into an electric signal and transmitting the electric signal to the signal amplification and adjustment device, the signal amplification and adjustment device is used for amplifying the electric signal and transmitting the amplified electric signal to the A/D conversion circuit, and the A/D conversion circuit is used for converting the electric signal into a digital value and transmitting the digital value to the acquisition device. The photoelectric detection device has the benefits that the light isolation channel can effectively prevent interference of dust and outside stray light between the photoelectric transmitter and the photoelectric receiver, so that the measurement precision is improved; the photoelectric element and the signal amplification and adjustment device are integrated, so that interferences of leakage current errors and mixed noise as well as influence on measurement precision due to gain peak and the like caused by stray capacitance can be effectively eliminated.
Description
Technical field
The present invention relates to surveying instrument technical field, particularly relate to a kind of photoelectric detection system.
Background technology
As everyone knows, in existing photoelectric detection system, photoemitter and photelectric receiver are owing to needing the state detecting photoelectricity between the two, therefore usually need to expose outside outside photoemitter and photelectric receiver, when the environment dust detected is larger, dust is easily adsorbed on photoemitter and photelectric receiver, thus affect photoelectricity transmission, cause the inefficacy of Photoelectric Detection; Photoelectric detection system is in the light intensity through colored solutions simultaneously, and when detecting each content of material in detected solution, owing to being vulnerable to the interference of around astigmatism or other impurity signal, the degree of accuracy of measurement is also lower.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of photoelectric detection system, make it have more value in industry.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide one and can effectively prevent external dust to be adsorbed on photoemitter and photelectric receiver and the interference of other interference source, thus improving the photoelectric detection system of Photoelectric Detection efficiency.
Photoelectric detection system of the present invention, comprise photoemitter, photelectric receiver and computing machine, light channel isolation is provided with between described photoemitter and photelectric receiver, photelectric receiver is connected with computing machine by circuit, described Phototube Coupling passage comprises the first Phototube Coupling passage and the second Phototube Coupling passage, is provided with object between the first Phototube Coupling passage and the second Phototube Coupling passage.
Further, described photelectric receiver comprises the photovalve connected successively, signal amplifies adjusting gear, A/D change-over circuit and harvester, one end of light channel isolation receives photoemitter and launches and pass the light intensity of object, the light intensity of reception is transferred to photovalve by the other end, photovalve converts the light intensity of reception to electric signal, and amplify adjusting gear by line transmission to signal, signal amplifies adjusting gear and is amplified by the electric signal of conversion, and by the electric signal transmission after being put into A/D change-over circuit, A/D change-over circuit converts the electric signal of reception to digital quantity and is transferred to harvester, the information transmission collected is connected to described computing machine by harvester.
Further, described photoemitter comprises light source, two lens are provided with between light source and the first Phototube Coupling passage of light channel isolation, the first Phototube Coupling passage is entered again after the light homogenizing that photoemitter sends by two lens, light after homogenizing passes object, via the second Phototube Coupling channel transfer to photovalve.
Further, described light source is LED light source.
Further, described light channel isolation is light collecting barrel.
Further, described photovalve is photoelectric cell, and it produces electromotive force under the irradiation of light, and the electromotive force of generation is transferred to signal amplification adjusting gear.
Compared with prior art, the present invention at least has the following advantages: light channel isolation can the effectively interference of dust, extraneous astigmatism between photoemitter and photelectric receiver, improves measuring accuracy; By photovalve, that signal amplifies adjusting gear is integrated, the effective interference eliminated leakage current error and be mixed into that gain spike etc. that noise and stray capacitance cause affects measuring accuracy.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of photoelectric detection system of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
See Fig. 1, a kind of photoelectric detection system described in a preferred embodiment of the present invention, photoemitter 1, photelectric receiver 2 and computing machine 8, light channel isolation 3 is provided with between described photoemitter 1 and photelectric receiver 2, photelectric receiver 2 is connected with computing machine 8 by circuit, described Phototube Coupling passage 3 comprises the first Phototube Coupling passage 31 and is provided with object 9 between the second Phototube Coupling passage 32, first Phototube Coupling passage 31 and the second Phototube Coupling passage 32.
Described photelectric receiver 2 comprises the photovalve 4 connected successively, signal amplifies adjusting gear 5, A/D change-over circuit 10 and harvester 6, one end of light channel isolation 3 receives photoemitter 1 and launches and pass the light intensity of object 9, the light intensity of reception is transferred to photovalve 4 by the other end, photovalve 4 converts the light intensity of reception to electric signal, and amplify adjusting gear 5 by line transmission to signal, signal amplifies adjusting gear 5 and is amplified by the electric signal of conversion, and by the electric signal transmission after being put into A/D change-over circuit 10, A/D change-over circuit 10 converts the electric signal of reception to digital quantity and is transferred to harvester 6, the information transmission collected is connected to described computing machine 8 by harvester 6, by photovalve 4, it is integrated that signal amplifies adjusting gear 5, effective elimination leakage current error and be mixed into the interference that gain spike etc. that noise and stray capacitance cause affects measuring accuracy, light channel isolation 3 can effective dust between photoemitter 1 and photelectric receiver 2, the interference of extraneous astigmatism, improve measuring accuracy.
Described photoemitter 1 comprises light source 11, two lens 7 are provided with between light source 11 and the first Phototube Coupling passage 31 of light channel isolation 3, the first Phototube Coupling passage 31 is entered again after the light homogenizing that photoemitter 1 sends by two lens 7, light after homogenizing, through object, is transferred to photovalve 4 via the second Phototube Coupling passage 32.
Described light source 11 is LED light source.
Described light channel isolation 3 is light collecting barrel.
Described photovalve 4 is photoelectric cell, and it produces electromotive force under the irradiation of light, and the electromotive force of generation is transferred to signal amplification adjusting gear 5.
The course of work of the present invention is as follows:
The light that photoemitter 1 sends is after lens 7 carry out homogenizing, photelectric receiver 2 is transferred to through object (thing to be detected) by light channel isolation 3, light channel isolation 3 can the effectively interference of dust, extraneous astigmatism between photoemitter 1 and photelectric receiver 2, improves measuring accuracy; Photovalve 4 in photelectric receiver 2 converts the light intensity of reception to electric signal, and be transferred to signal amplification adjusting gear 5, signal amplifies adjusting gear 5 and carries out amplifying the electric signal of conversion so that detect, amplify the signal after adjustment to be connected by line transmission harvester 6, harvester 6 by the information that collects by line transmission to computing machine 3, and analyze the result recorded.
The above is only the preferred embodiment of the present invention; be not limited to the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (6)
1. a photoelectric detection system, comprise photoemitter, photelectric receiver and computing machine, it is characterized in that: between described photoemitter and photelectric receiver, be provided with light channel isolation, described photelectric receiver is connected with described computing machine by circuit, described Phototube Coupling passage comprises the first Phototube Coupling passage and the second Phototube Coupling passage, is provided with object between described first Phototube Coupling passage and the second Phototube Coupling passage.
2. photoelectric detection system according to claim 1, it is characterized in that: described photelectric receiver comprises the photovalve connected successively, signal amplifies adjusting gear, A/D change-over circuit and harvester, one end of described light channel isolation receives photoemitter and launches and pass the light intensity of object, the light intensity of reception is transferred to photovalve by the other end, described photovalve converts the light intensity of reception to electric signal, and amplify adjusting gear by line transmission to signal, described signal amplifies adjusting gear and is amplified by the electric signal of conversion, and by the electric signal transmission after being put into A/D change-over circuit, described A/D change-over circuit converts the electric signal of reception to digital quantity and is transferred to harvester, the information transmission collected is connected to described computing machine by described harvester.
3. photoelectric detection system according to claim 1, it is characterized in that: described photoemitter comprises light source, two lens are provided with between light source and the first Phototube Coupling passage of light channel isolation, the first Phototube Coupling passage is entered again after the light homogenizing that photoemitter sends by two lens, light after homogenizing passes object, via the second Phototube Coupling channel transfer to photovalve.
4. photoelectric detection system according to claim 3, is characterized in that: described light source is LED light source.
5. photoelectric detection system according to claim 3, is characterized in that: described light channel isolation is light collecting barrel.
6. photoelectric detection system according to claim 2, is characterized in that: described photovalve is photoelectric cell, and it produces electromotive force under the irradiation of light, and the electromotive force of generation is transferred to signal amplification adjusting gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410822112.5A CN104568761A (en) | 2014-12-25 | 2014-12-25 | Photoelectric detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410822112.5A CN104568761A (en) | 2014-12-25 | 2014-12-25 | Photoelectric detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568761A true CN104568761A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410822112.5A Pending CN104568761A (en) | 2014-12-25 | 2014-12-25 | Photoelectric detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996169A (en) * | 2018-08-21 | 2018-12-14 | 廷柏(上海)智能科技有限公司 | A kind of material feeding device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105450A (en) * | 1994-01-14 | 1995-07-19 | 中国科学院光电技术研究所 | Particle measuring method and particle detecting sensor thereof |
| CN2218928Y (en) * | 1994-08-30 | 1996-01-31 | 电力工业部南京电力环境保护科学研究所 | On-line monitoring instrument for gas turbid and dust concentration |
| CN2285468Y (en) * | 1996-09-12 | 1998-07-01 | 中国科学院化工冶金所 | Device for determining grain size by image precipitation method |
| WO2000052449A2 (en) * | 1999-02-05 | 2000-09-08 | Esytec Energie- Und Systemtechnik Gmbh | Device and method for simultaneous in-situ determination of particle size and mass concentration of fluid-borne particles |
| CN1410756A (en) * | 2002-11-14 | 2003-04-16 | 上海交通大学 | Particle radius, concentration photosensor |
| CN2698097Y (en) * | 2004-05-12 | 2005-05-11 | 上海恒尚自动化设备有限公司 | On-line circle optical projection detection device for tobacco industry |
| CN201122792Y (en) * | 2007-11-28 | 2008-09-24 | 福州高意光学有限公司 | Semiconductor laser integrated with photoisolator |
| CN201837584U (en) * | 2010-09-28 | 2011-05-18 | 齐齐哈尔大学 | Milk protein photoelectric detection probe |
| CN103424664A (en) * | 2012-05-14 | 2013-12-04 | 南京弘毅电气自动化有限公司 | Optical sensor achieving switch cabinet flashover detection |
| CN203376235U (en) * | 2013-07-30 | 2014-01-01 | 上海理工大学 | Device applicable to measuring concentration of PM (Particulate Matter) 2.5 on line in air purifier |
| CN103954587A (en) * | 2014-03-18 | 2014-07-30 | 浙江师范大学 | Method and device for detecting hydroxyl in quartz glass |
-
2014
- 2014-12-25 CN CN201410822112.5A patent/CN104568761A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105450A (en) * | 1994-01-14 | 1995-07-19 | 中国科学院光电技术研究所 | Particle measuring method and particle detecting sensor thereof |
| CN2218928Y (en) * | 1994-08-30 | 1996-01-31 | 电力工业部南京电力环境保护科学研究所 | On-line monitoring instrument for gas turbid and dust concentration |
| CN2285468Y (en) * | 1996-09-12 | 1998-07-01 | 中国科学院化工冶金所 | Device for determining grain size by image precipitation method |
| WO2000052449A2 (en) * | 1999-02-05 | 2000-09-08 | Esytec Energie- Und Systemtechnik Gmbh | Device and method for simultaneous in-situ determination of particle size and mass concentration of fluid-borne particles |
| CN1410756A (en) * | 2002-11-14 | 2003-04-16 | 上海交通大学 | Particle radius, concentration photosensor |
| CN2698097Y (en) * | 2004-05-12 | 2005-05-11 | 上海恒尚自动化设备有限公司 | On-line circle optical projection detection device for tobacco industry |
| CN201122792Y (en) * | 2007-11-28 | 2008-09-24 | 福州高意光学有限公司 | Semiconductor laser integrated with photoisolator |
| CN201837584U (en) * | 2010-09-28 | 2011-05-18 | 齐齐哈尔大学 | Milk protein photoelectric detection probe |
| CN103424664A (en) * | 2012-05-14 | 2013-12-04 | 南京弘毅电气自动化有限公司 | Optical sensor achieving switch cabinet flashover detection |
| CN203376235U (en) * | 2013-07-30 | 2014-01-01 | 上海理工大学 | Device applicable to measuring concentration of PM (Particulate Matter) 2.5 on line in air purifier |
| CN103954587A (en) * | 2014-03-18 | 2014-07-30 | 浙江师范大学 | Method and device for detecting hydroxyl in quartz glass |
Non-Patent Citations (2)
| Title |
|---|
| 刘鸣等: "《电子线路综合设计与实践》", 31 August 2014, 机械工业出版社 * |
| 李海等: "《电工电子技术 第2版》", 30 November 2013, 中国电力出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996169A (en) * | 2018-08-21 | 2018-12-14 | 廷柏(上海)智能科技有限公司 | A kind of material feeding device |
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Application publication date: 20150429 |