CN116754526A - Photoelectric receiving device suitable for low-range turbidity measurement - Google Patents
Photoelectric receiving device suitable for low-range turbidity measurement Download PDFInfo
- Publication number
- CN116754526A CN116754526A CN202310726218.4A CN202310726218A CN116754526A CN 116754526 A CN116754526 A CN 116754526A CN 202310726218 A CN202310726218 A CN 202310726218A CN 116754526 A CN116754526 A CN 116754526A
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- hole
- casing
- lens
- photoelectric
- shell
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- 238000005259 measurement Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000003292 glue Substances 0.000 claims description 13
- 238000002834 transmittance Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000005693 optoelectronics Effects 0.000 claims 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 239000003595 mist Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to a photoelectric receiving device suitable for low-range turbidity measurement, which comprises a shell, a photoelectric receiver, a lens, a sealing element and colorless transparent oily liquid, wherein the photoelectric receiver, the lens, the sealing element and the colorless transparent oily liquid are arranged in the shell, the colorless transparent oily liquid is filled in the inner space of the shell, the shell comprises an upper cover and a lower shell which are detachably connected, the upper cover is provided with a window, the lens covers the window and is positioned in the shell, the upper edge of the lower shell is positioned in the upper cover, the sealing element is abutted between the upper edge of the lower shell and the lens, the lower shell is provided with a through hole, the photoelectric receiver is fixed in the lower shell, a data wire of the photoelectric receiver penetrates through the through hole and is connected with external equipment, and the through hole is sealed by a plugging element. The invention has the advantages that: 1. the internal water mist is eliminated, and the accuracy of the measured value is improved; 2. the detachable and maintainable device is provided; 3. the method can be applied to low-range turbidity measurement.
Description
Technical Field
The invention relates to the field of underwater photoelectric devices, in particular to a photoelectric receiving device suitable for low-range turbidity measurement.
Background
In the field of water quality monitoring, it is often necessary to use a photoelectric receiver, where the photoelectric receiver receives an optical signal passing through a liquid to be measured, converts the optical signal into an electrical signal, and then detects a content value of a certain water quality parameter. However, when measuring the turbidity of water, the photoelectric receiver needs to be placed in water and at a position 90 degrees relative to the light beam, and the conventional photoelectric receiver cannot be directly used for underwater measurement, so that a waterproof mechanism needs to be designed outside the photoelectric receiver. In the prior art, a photoelectric receiver is accommodated in a shell, a lens for transmitting light is arranged on the upper surface of the shell, and then glue is filled around the lens. The photoelectric receiving device sealed by the pouring sealant can play a good role in waterproof. But there are also the following problems: 1. when the glue is filled and sealed, air is stored in the shell, the temperature change of the surrounding environment can cause fog to adhere to the inner surface of the lens, for example, a photoelectric receiving device at the environment temperature of more than 30 degrees is placed in water, the temperature difference between the inner surface and the outer surface of the lens can cause the fog to adhere to the inner surface of the lens quickly, and the fog can influence the transmittance of the lens, so that the measured value is finally influenced; 2. in low-range turbidity measurement, because the measured turbidity value is lower, the requirement on the light path is higher, and the accuracy of the measured value is seriously affected by fog, when the temperature difference between the ambient temperature and the water temperature is larger, the low-range turbidity measurement is often not carried out; 3. the difficulty of the epoxy resin glue pouring process is high; 4. when the photoelectric receiver fails, due to the adoption of the glue seal, the maintenance difficulty is high, the photoelectric receiver is often scrapped, and the later maintenance cannot be performed.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a photoelectric receiving device suitable for low-range turbidity measurement, which can prevent water mist from being generated in a housing, is suitable for low-range turbidity measurement, and can further improve the later maintainability of a photoelectric receiver.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a photoelectric receiving device suitable for low range turbidity measurement, includes the casing, locates photoelectric receiver, lens, sealing member and the filling in the casing inner space the colorless transparent oily liquid, the casing is including detachable upper cover and the lower casing of connection, a window is seted up to the upper cover, the lens covers this window and is located the casing, the upper edge of lower casing is located in the upper cover, sealing member butt down the casing upper edge with between the lens, the casing is equipped with the through-hole down, and photoelectric receiver is fixed in down the casing and its data line passes the through-hole with connect external equipment, the through-hole is sealed through the shutoff piece.
More preferably, the seal is a sealing ring.
More preferably, a fixing bracket is further arranged in the shell, and the photoelectric receiver is fixed through the fixing bracket.
More preferably, the inner wall of the lower shell is provided with a convex edge, the photoelectric receiver is arranged on the convex edge, the lower part of the fixing support abuts against the photoelectric receiver, the upper part of the fixing support abuts against the inner surface of the lens, and the upper part of the fixing support is positioned on the inner side of the sealing piece.
More preferably, the outside of the through hole is connected with a wire passing rod, the data wire is arranged in the wire passing rod in a penetrating mode, and the joint of the through hole and the wire passing rod is sealed through the plugging piece.
More preferably, the lower shell is further provided with an oil filling hole, and the oil filling hole is plugged through a plug.
More preferably, the blocking piece is sealing glue.
More preferably, the transmittance of the colorless transparent oily liquid is more than or equal to 95 percent.
More preferably, the colorless transparent oily liquid is silicone oil.
More preferably, the upper cover and the lower shell are in threaded connection or rotary clamping connection.
The invention has the following beneficial effects:
1. according to the photoelectric receiving device, the colorless transparent oily liquid is poured to discharge air in the shell, so that lens fog is thoroughly eliminated, and the accuracy of turbidity measurement is improved.
2. The photoelectric receiving device has good transmittance due to the filled colorless transparent oily liquid, and is particularly suitable for low-range turbidity measurement.
3. According to the photoelectric receiving device, the upper cover and the lower shell are detachably connected, and the gap between the upper cover and the lower shell and the gap between the upper cover and the lens are isolated from the inner space of the shell through the sealing piece, so that the inner space of the shell is sealed, the photoelectric receiver can be positioned without glue filling in the process, the fixing support is placed, the convenience of device assembly is improved, and the later maintainability is realized.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the present invention;
fig. 3 is a schematic structural view of the photoelectric receiving apparatus (not shown in the drawings) after the upper cover is opened;
FIG. 4 is a schematic view of the installation of a fixing bracket (not shown) of the photoelectric receiving apparatus of the present invention;
fig. 5 is a schematic view of a fixing bracket of the photoelectric receiving apparatus according to the present embodiment;
FIG. 6 is a perspective view of the photoelectric receiving device of the present invention after the wire rod is installed;
fig. 7 is a longitudinal section of fig. 6.
Reference numerals illustrate:
10. a housing; 11. an upper cover; 12. a lower housing; 121. a through hole; 122. a blocking member; 123. an oil filling hole; 124. a plug; 125. a convex edge; 20. a photoelectric receiver; 30. a lens; 40. a seal; 50. colorless transparent oily liquid; 60. a fixed bracket; 70. and (5) passing through the wire rod.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and specific examples:
referring to fig. 1 to 4, a photoelectric receiving device suitable for low-range turbidity measurement includes a housing 10, a photoelectric receiver 20 disposed in the housing 10, a lens 30, a sealing member 40, and a colorless transparent oily liquid 50 filling an inner space of the housing 10, wherein the housing 10 includes an upper cover 11 and a lower housing 12 detachably connected, the upper cover 11 is provided with a window, the lens 30 covers the window and is disposed in the housing 10, an upper edge of the lower housing 12 is disposed in the upper cover 11, the sealing member 40 is abutted between an upper edge of the lower housing 12 and the lens 30, the lower housing 12 is provided with a through hole 121, the photoelectric receiver 20 is fixed in the lower housing 12, a data line of the photoelectric receiver passes through the through hole 121 and is connected with an external device, and the through hole 121 is sealed by a blocking member 122.
In the above embodiment, after the upper cover 11 is connected with the lower housing 12, the sealing member 40 is in a close fit state, the sealing member 40 not only tightly adheres the lens 30 to the upper cover 11, but also seals the gap between the lower housing 12 and the upper cover 11, and in a state where the lens 30 does not need to be glued, external liquid or vapor can be prevented from entering the housing 10 and liquid in the housing 10 can be prevented from leaking outwards. The through hole 121 may be used as a through hole for a data line or may be used as an oil filling hole 123, when the internal components of the housing 10 are installed, if the photoelectric receiver 20 is fixed, the data line is led out through the through hole 121, the sealing ring is placed on the upper edge of the lower housing 12, the lens 30 is placed on the upper cover 11, the upper cover 11 and the lower housing 12 are connected and fixed, the colorless transparent oily liquid 50 is filled through the through hole 121, and after filling, the through hole 121 is sealed by the plugging member 122. The colorless transparent oily liquid 50 fills the inside of the casing 10 to completely exhaust the air in the casing 10, so that no fog is generated in the lens 30 and the inside of the casing 10 due to temperature change, the lens 30 is not adhered with the fog, and the colorless transparent oily liquid 50 has good transmittance, so that the photoelectric receiving device is particularly suitable for low-range turbidity measurement. The photoelectric receiving device of the embodiment completely eliminates internal fog interference and improves the accuracy of measured values. Meanwhile, in the photoelectric receiving device of the embodiment, the upper cover 11 and the lower shell 12 are assembled in a detachable connection mode, the internal components are not fixed by glue filling, the assembly process is simple, and the photoelectric receiving device has good detachability during maintenance, so that the photoelectric receiving device of the embodiment also has the advantages of convenience in assembly and strong maintainability.
Referring to fig. 2, in order to improve the oil filling convenience, an oil filling hole 123 may be further formed in the lower housing 12, and preferably, the bottom of the lower housing 12 is provided with the oil filling hole 123, and after the colorless transparent oily liquid 50 is filled, the oil filling hole 123 is blocked by a plug 124.
The photo receiver 20 may preferably be a silicon photo cell. The sealing member 40 is a sealing ring, preferably a silica gel sealing ring or a nitrile rubber or neoprene sealing ring. The sealing piece 122 can be made of sealing glue, and has high fitting degree with the data line, easy solidification and good sealing effect when sealing. The transmittance of the colorless transparent oily liquid 50 is more than or equal to 95%, and the high transmittance can further improve the measurement accuracy. Preferably, the colorless transparent oily liquid 50 is silicone oil.
The upper cover 11 and the lower housing 12 are screwed together, as shown in fig. 2, or are rotatably engaged (not shown). The rotary clamping means that a plurality of second raised strips are arranged on the outer wall of the upper part of the lower shell 12 at intervals, a plurality of first raised strips are arranged on the inner wall of the upper cover 11 at intervals, when the upper cover 11 needs to be closed, the first raised strips penetrate through gaps between two adjacent second raised strips, then the upper cover 11 is rotated, and the first raised strips are clamped below the second raised strips, so that the upper cover 11 and the lower shell 12 are fixedly connected. It should be noted that, the detachable connection manner of the upper cover 11 and the lower housing 12 is not limited to the two described in the present embodiment, and the detachable connection manner applicable to the present invention in the prior art is all within the protection scope of the present invention.
There are various ways to fix the photo receiver 20 in the housing 10, for example, a slot may be provided in the lower housing 12, and the photo receiver 20 may be inserted into the slot. In this embodiment, a fixing bracket 60 is disposed in the housing 10, and the photoelectric receiver 20 is fixed by the fixing bracket 60. Specifically, referring to fig. 2, 4 and 5, the inner wall of the lower housing 12 is provided with a flange 125, the photoelectric receiver 20 is disposed on the flange 125, the lower portion of the fixing bracket 60 abuts against the photoelectric receiver 20, the upper portion abuts against the inner surface of the lens 30, and the upper portion of the fixing bracket 60 is located inside the sealing member 40. The height of the fixing bracket 60 is equal to the distance between the lower surface of the lens 30 and the upper surface of the photoelectric receiver 20 after the upper cover 11 is screwed. The fixing bracket 60 has the advantages that: the photo-receiver 20 is positioned in a locking manner without the need for fasteners, and is simpler and faster to assemble and easier to disassemble the photo-receiver 20.
Referring to fig. 6 and 7, the outer side of the through hole 121 is connected to a wire passing rod 70, the data wire is inserted into the wire passing rod 70, and the connection between the through hole 121 and the wire passing rod 70 is sealed by the sealing member 122. The data line can be better protected by the wire passing rod 70, and the colorless transparent oily liquid 50 in the casing 10 can be prevented from leaking out by sealing by the plugging member 122. During assembly, longer data lines can be reserved in the shell 10, and during maintenance of the photoelectric receiver 20, the elements are taken out without being limited by the data lines, so that the maintenance is more convenient.
The photoelectric receiving device suitable for low-range turbidity measurement can be assembled by the following modes, but is not limited to the following assembly sequences:
1) Threading the data line of the photo receiver 20 through the line passing bar 70;
2) Glue sealing the through hole 121 on the lower shell 12;
3) Placing the photo receiver 20 over the ledge 125;
4) Placing a fixing bracket 60 on the photo receiver 20, and placing a sealing member 40 on the upper edge of the lower housing 12;
5) Placing the lens 30 over the seal 40, with each position of the seal 40 being in engagement with the lens 30;
6) Covering the upper cover 11, and screwing the upper cover 11;
7) Injecting colorless transparent oily liquid 50 from the oil filling hole 123, and plugging the oil filling hole 123 by a plug 124 after filling;
8) And (5) finishing assembly.
The photoelectric receiving device suitable for low-range turbidity measurement adopts colorless transparent oily liquid to fill the inner space of the shell 10 and exhaust air, thereby completely eliminating the influence of fog in the shell on the measured value, improving the measurement accuracy and being particularly suitable for low-range turbidity measurement. Meanwhile, the upper cover 11 and the lower shell 12 are detachably connected, and the sealing piece 40 is matched, so that convenience in assembly and maintainability in later period are realized, and the problems that in the prior art, the glue filling process is difficult and the later period cannot be maintained due to the fact that the photoelectric receiving device adopts epoxy resin glue for glue filling are solved.
The foregoing description is only specific embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An optoelectronic receiving device suitable for low range turbidity measurement, characterized in that: including the casing, locate photoelectric receiver, lens, sealing member and filling in the casing the colorless transparent oily liquid of casing inner space, the casing is including dismantling upper cover and the lower casing of connection, a window is seted up to the upper cover, the lens covers this window and is located the casing, the upper edge of lower casing is located in the upper cover, sealing member butt is in the lower casing upper edge with between the lens, the casing is equipped with the through-hole down, and photoelectric receiver is fixed in the lower casing and its data line passes the through-hole with connect external equipment, the through-hole is sealed through the shutoff piece.
2. An optoelectronic receiver assembly as set forth in claim 1 adapted for use in low range turbidity measurements, wherein: the sealing element is a sealing ring.
3. An optoelectronic receiver assembly as set forth in claim 1 adapted for use in low range turbidity measurements, wherein: the shell is internally provided with a fixing bracket, and the photoelectric receiver is fixed through the fixing bracket.
4. A photoelectric receiving device suitable for low-range turbidity measurement according to claim 3, wherein: the inner wall of the lower shell is provided with a convex edge, the photoelectric receiver is arranged on the convex edge, the lower part of the fixing support abuts against the photoelectric receiver, the upper part of the fixing support abuts against the inner surface of the lens, and the upper part of the fixing support is positioned on the inner side of the sealing piece.
5. An optoelectronic receiver assembly as set forth in claim 1 adapted for use in low range turbidity measurements, wherein: the outside of the through hole is connected with a wire passing rod, the data wire is arranged in the wire passing rod in a penetrating mode, and the joint of the through hole and the wire passing rod is sealed through the plugging piece.
6. An optoelectronic receiver assembly as defined in claim 1 or 5 adapted for use in low range turbidity measurements, wherein: the lower shell is also provided with an oil filling hole, and the oil filling hole is plugged by a plug.
7. An optoelectronic receiver assembly as set forth in claim 1 adapted for use in low range turbidity measurements, wherein: the blocking piece is sealing glue.
8. An optoelectronic receiver assembly as set forth in claim 1 adapted for use in low range turbidity measurements, wherein: the transmittance of the colorless transparent oily liquid is more than or equal to 95 percent.
9. An optoelectronic receiver assembly as set forth in claim 1 adapted for use in low range turbidity measurements, wherein: the colorless transparent oily liquid is silicone oil.
10. An optoelectronic receiver assembly as set forth in claim 1 adapted for use in low range turbidity measurements, wherein: the upper cover and the lower shell are in threaded connection or rotary clamping connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310726218.4A CN116754526B (en) | 2023-06-19 | 2023-06-19 | Photoelectric receiving device suitable for low-range turbidity measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310726218.4A CN116754526B (en) | 2023-06-19 | 2023-06-19 | Photoelectric receiving device suitable for low-range turbidity measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116754526A true CN116754526A (en) | 2023-09-15 |
| CN116754526B CN116754526B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310726218.4A Active CN116754526B (en) | 2023-06-19 | 2023-06-19 | Photoelectric receiving device suitable for low-range turbidity measurement |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374582A (en) * | 2018-10-26 | 2019-02-22 | 苏州奥特福环境科技有限公司 | A kind of oil sealing waterproof construction and underwater detectoscope for underwater detectoscope |
| CN208999293U (en) * | 2018-08-17 | 2019-06-18 | 西安建筑科技大学 | A kind of water turbidity measuring device |
| CN209471044U (en) * | 2018-10-26 | 2019-10-08 | 苏州奥特福环境科技有限公司 | A kind of oil sealing waterproof construction and underwater detectoscope for underwater detectoscope |
| CN210037608U (en) * | 2019-03-22 | 2020-02-07 | 南京帕克光电科技有限公司 | 90-degree scattering turbidity meter |
| CN216770637U (en) * | 2021-12-23 | 2022-06-17 | 天津格林恒业科技有限公司 | Photoelectric sensor with good sealing performance |
| CN216900171U (en) * | 2021-06-01 | 2022-07-05 | 深圳市先波科技有限公司 | Online video monitoring device of fluid quality |
-
2023
- 2023-06-19 CN CN202310726218.4A patent/CN116754526B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208999293U (en) * | 2018-08-17 | 2019-06-18 | 西安建筑科技大学 | A kind of water turbidity measuring device |
| CN109374582A (en) * | 2018-10-26 | 2019-02-22 | 苏州奥特福环境科技有限公司 | A kind of oil sealing waterproof construction and underwater detectoscope for underwater detectoscope |
| CN209471044U (en) * | 2018-10-26 | 2019-10-08 | 苏州奥特福环境科技有限公司 | A kind of oil sealing waterproof construction and underwater detectoscope for underwater detectoscope |
| CN210037608U (en) * | 2019-03-22 | 2020-02-07 | 南京帕克光电科技有限公司 | 90-degree scattering turbidity meter |
| CN216900171U (en) * | 2021-06-01 | 2022-07-05 | 深圳市先波科技有限公司 | Online video monitoring device of fluid quality |
| CN216770637U (en) * | 2021-12-23 | 2022-06-17 | 天津格林恒业科技有限公司 | Photoelectric sensor with good sealing performance |
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| Publication number | Publication date |
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| CN116754526B (en) | 2024-04-26 |
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