CN220819821U - Multi-parameter self-correction optical detector and water quality analyzer obtained by same - Google Patents

Multi-parameter self-correction optical detector and water quality analyzer obtained by same Download PDF

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Publication number
CN220819821U
CN220819821U CN202322319051.8U CN202322319051U CN220819821U CN 220819821 U CN220819821 U CN 220819821U CN 202322319051 U CN202322319051 U CN 202322319051U CN 220819821 U CN220819821 U CN 220819821U
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China
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light source
channel
groove
sensor
light
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Inventor
曾越
史倩
郑欢欢
张述伟
马海宽
曹煊
王昭玉
吴宁
刘岩
吴晓凡
魏鼎力
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Qilu University of Technology
Institute of Oceanographic Instrumentation Shandong Academy of Sciences
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Qilu University of Technology
Institute of Oceanographic Instrumentation Shandong Academy of Sciences
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Abstract

The utility model provides a multi-parameter self-correction optical detector and a water quality analyzer obtained by the same. The utility model comprises a shell, wherein a first channel and a second channel are arranged on the shell in a penetrating way, a first groove for installing an optical path distributor is arranged at the intersection of the first channel and the second channel, and a second groove for installing a flow cell is also arranged on the second channel; one end of the first channel is provided with a first light source, and the other end of the first channel is provided with a first photoelectric sensor; one end of the second channel is provided with a second light source, and the other end of the second channel is provided with a second photoelectric sensor; the light path distributor is provided with a first through hole communicated with the first channel and provided with a first optical filter, a second through hole communicated with the second channel and provided with a second optical filter, and a light splitting sheet is further arranged in the light path distributor. According to the utility model, different parameters adopt different light paths to finish data measurement through the same light path distributor, the structure is simple, the volume is small, the material consumption is saved, the cost is low, and the effect is good.

Description

Multi-parameter self-correction optical detector and water quality analyzer obtained by same
Technical Field
The utility model relates to the technical field of water quality monitoring, in particular to a multi-parameter self-correcting optical detector and a water quality analyzer obtained by the same.
Background
At present, water quality monitoring in the offshore seawater ecological environment is more and more emphasized, and corresponding water quality detectors are rapidly developed. The existing water quality detector is mainly a wet chemical system water quality analyzer, and spectrophotometry is adopted in the detection (such as nitrate, phosphate, nitrite, silicate, COD and the like) of the wet chemical system water quality analyzer. However, a single device of a conventional water quality analyzer can only perform detection of a single parameter (i.e., a single substance). Because the wavelength of the light source required by different objects to be detected is different, the detection of different parameters (namely different substances) is realized on a single water quality analyzer, and a plurality of optical detection modules are generally required to be configured, so that the water quality analyzer has a complex structure, a large volume, multiple consumables and high cost, and cannot meet the requirements of high-efficiency, rapid and low-cost water quality monitoring of the offshore seawater ecological environment.
Disclosure of utility model
The utility model aims to provide a multi-parameter self-correction optical detector and a water quality analyzer obtained by the multi-parameter self-correction optical detector, and aims to solve the problems that a single water quality analyzer in the prior art can only realize the detection of a single parameter, and the water quality analyzer adopting a plurality of optical detection modules has a complex structure, large volume, multiple consumables and high cost.
In order to solve the technical problems, the technical scheme of the utility model is realized as follows:
In one aspect, the utility model provides a multiparameter self-correcting optical detector comprising a housing, a light source, a light path distributor, a flow cell, and a photosensor; a first channel and a second channel are arranged on the side surface of the shell in a penetrating manner, the first channel and the second channel are arranged vertically, a first groove is formed at the intersection of the first channel and the second through hole, a second groove is formed on one side of the first groove, and the second groove is arranged on the second channel; the light source comprises a first light source and a second light source, the first light source is arranged at one end of the first channel, and the second light source is arranged at one end of the second channel, which is close to the first groove; the light path distributor is matched with the first groove and is arranged in the first groove, a first through hole communicated with the first channel and a second through hole communicated with the second channel are arranged on the side face of the light path distributor in a penetrating mode, a first optical filter is arranged at one end, close to the first light source, of the first through hole, a second optical filter is arranged at one end, close to the second light source, of the second through hole, a deep groove which is vertically arranged is further arranged at the top of the light path distributor, the included angle between the deep groove and the first through hole and between the deep groove and the second through hole is 45 degrees, and a light splitting sheet is arranged in the deep groove; the flow cell is matched with the second groove and is arranged in the second groove; the photoelectric sensor comprises a first photoelectric sensor and a second photoelectric sensor, the first photoelectric sensor is installed at one end of the first channel far away from the first light source, and the second photoelectric sensor is installed at one end of the second channel near the second groove.
As a preferred implementation scheme, the second groove comprises a first groove body, a second groove body and a third groove body which are sequentially connected, wherein the first groove body, the second groove body and the third groove body are connected to form a U shape, and the center line of the second groove body is coincident with the center line of the second channel.
As a preferred embodiment, the top of the housing is provided with a removably attached top cover.
As a preferred embodiment, the bottom of the light path distributor is provided with a third through hole for assisting in taking out the light splitting sheet, and the third through hole is communicated with the deep groove.
As a preferred embodiment, a first annular clamping groove for installing the first optical filter is arranged in the circumferential direction of the first through hole, and a second annular clamping groove for installing the second optical filter is arranged in the circumferential direction of the second through hole.
As a preferred embodiment, one end of the first channel is provided with a first light source mounting hole for mounting the first light source, the other end of the first channel is provided with a first sensor mounting hole for mounting the first photoelectric sensor, and the first light source mounting hole and the first sensor mounting hole are coaxially arranged with the first channel; one end of the second channel is provided with a second light source mounting hole for mounting the second light source, the other end of the second channel is provided with a second sensor mounting hole for mounting the second photoelectric sensor, and the second light source mounting hole and the second sensor mounting hole are both coaxially arranged with the second channel.
As a preferred embodiment, the first light source is provided with a first light source mounting seat, the outside of the first light source mounting seat is provided with first light source external threads, and the inside of the first light source mounting hole is provided with first light source internal threads which are matched with the first light source external threads; the second light source is provided with a second light source mounting seat, a second light source external thread is arranged outside the second light source mounting seat, and a second light source internal thread matched with the second light source external thread is arranged inside the second light source mounting hole; the first photoelectric sensor is provided with a first sensor mounting seat, a first sensor external thread is arranged outside the first sensor mounting seat, and a first sensor internal thread matched with the first sensor external thread is arranged inside the first sensor mounting hole; the second photoelectric sensor is provided with a second sensor mounting seat, a second sensor external thread is arranged outside the second sensor mounting seat, and a second sensor internal thread matched with the second sensor external thread is arranged inside the second sensor mounting hole.
As a preferred embodiment, the first groove is provided in a cuboid shape, and the corner of the first groove is provided in an arc shape.
As a preferred embodiment, the side surface of the first groove is provided with two taking grooves for taking the optical path distributor, and the connecting lines of the two taking grooves are parallel to the central line of the first channel.
In another aspect, the utility model provides a water quality analyzer comprising a housing having an interior provided with a multiparameter self-correcting optical detector according to any one of the preceding claims.
Compared with the prior art, the utility model has the beneficial effects that: the utility model adopts the double light sources and double light paths to arrange, the light filter and the light splitting sheet are coupled to one light path distributor, the light filter is used for filtering stray light or reducing the intensity of the light source, the light beam obtained by the light splitting sheet is purer, the light beam transmitted and reflected by the light splitting sheet enters the detection light path and the reference light path according to practical application, different parameters adopt different light paths to finish data measurement through the same light path distributor, and detection of different parameters is realized on one optical detector. In addition, the optical detector is also provided with a reference light path, the fluctuation of the light source is corrected through the reference light path, the problem of light intensity change of the light source caused by attenuation and voltage fluctuation is solved, the consistency of a measurement result is ensured, and the high-efficiency, rapid and low-cost monitoring of the water quality of the offshore seawater ecological environment is realized.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing a three-dimensional structure of an embodiment of a multi-parameter self-correcting optical detector in a water quality analyzer according to the present utility model;
FIG. 2 is a schematic plan view of the structure of FIG. 1;
FIG. 3 is an enlarged schematic view of the housing of FIG. 1;
FIG. 4 is an enlarged schematic view of the structure of the housing of FIG. 3 without the flow cell and the light path distributor;
FIG. 5 is an enlarged schematic view of the optical path splitter of FIG. 3;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5 without the first light transmitting sheet, the second light transmitting sheet and the optical filter;
In the figure:
100-a housing; 200-top cover; 300-optical path distributor; 400-flow cell;
110-a first channel; 120-a second channel; 130-a first groove; 140-a second groove;
111-a first light source; 112-a first photosensor; 113-a pick-up slot;
121-a second light source; 122-a second photosensor;
310-a first through hole; 320-a second through hole; 330-deep groove;
311-a first filter; 321-a second filter; 331-spectroscopic sheet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a water quality analyzer which is used for monitoring the water quality of a water body, in particular to the water quality monitoring in the offshore seawater ecological environment. The water quality analyzer comprises a housing having a multiparameter self-correcting optical detector disposed therein, wherein one such water quality analyzer can measure a plurality of parameters in a body of water, such as: the multi-parameter self-correcting optical detector has high measuring efficiency, and can perform self-correction, so that systematic errors are eliminated, and the accuracy of a measuring result is ensured.
Referring to fig. 1, 2, 3, 4, 5 and 6, the multiparameter self-correcting optical detector of the present utility model is configured with a housing 100, a light source, a light path distributor 300, a flow cell 400 and a photosensor. In general, the top of the housing 100 is provided with a top cover 200 detachably connected, and the top cover 200 protects the top of the housing 100 to prevent light leakage during detection; the top cover 200 is detachably connected with the shell 100, so that the connection is convenient and the overhaul is convenient; generally, a threaded hole is formed in the top of the housing 100, a screw is arranged in the threaded hole, a counter bore coaxial with the threaded hole is formed in the top cover 200, and the screw penetrates through the threaded hole to reach the counter bore, so that the connection between the housing 100 and the top cover 200 is realized.
Referring to fig. 1, 2, 3, 4, 5 and 6, in some embodiments, a first channel 110 and a second channel 120 are formed on a side surface of the housing 100 in a penetrating manner, the first channel 110 and the second channel 120 are vertically arranged, a first groove 130 is formed at an intersection of the first channel 110 and the second channel 120, the first groove 130 is used for installing the optical path distributor 300, a second groove 140 is formed on one side of the first groove 130, the second groove 140 is formed on the second channel 120, and the second groove 140 is used for installing the flow cell 400; the light source includes a first light source 111 and a second light source 121, the first light source 111 is installed at one end of the first channel 110, and the second light source 121 is installed at one end of the second channel 120 near the first groove 130; the light path distributor 300 is matched with the first groove 130 and is arranged in the first groove 130, a first through hole 310 communicated with the first channel 110 and a second through hole 320 communicated with the second channel 120 are arranged on the side surface of the light path distributor 300 in a penetrating manner, the central line of the first through hole 310 coincides with the central line of the first channel 110, the central line of the second through hole 320 coincides with the central line of the second channel 120, a first optical filter 311 is arranged at one end, close to the first light source 111, of the first through hole 310, a second optical filter 321 is arranged at one end, close to the second light source 121, of the second through hole 320, the first optical filter 311 is used for filtering stray light of the first light source 111 or reducing the intensity of the first light source 111, and the second optical filter 321 is used for filtering stray light of the second light source 121 or reducing the intensity of the second light source 121; the top of the optical path distributor 300 is also provided with a deep groove 330 which is vertically arranged, the included angles between the deep groove 330 and the first through hole 310 and between the deep groove 330 and the second through hole 320 are all 45 degrees, a light splitting sheet 331 is arranged in the deep groove 330, and the light splitting sheet 331, the first optical filter 311 and the second optical filter 321 are all coupled to one optical path distributor 300; the flow cell 400 is fitted with the second groove 140 and mounted inside the second groove 140; the photoelectric sensor comprises a first photoelectric sensor 112 and a second photoelectric sensor 122, the first photoelectric sensor 112 is arranged at one end of the first channel 110 far away from the first light source 111, and the second photoelectric sensor 122 is arranged at one end of the second channel 120 near the second groove 140; in the first channel 110, a part of the first channel is a light source light path, the other part of the first channel is a reference light path, a light source light path is arranged between the first light source 111 and the light splitting sheet 331, and a reference light path is arranged between the light splitting sheet 331 and the first photoelectric sensor 112; in the second channel 120, a part of the light source light path is also a light source light path, another part of the light source light path is a detection light path, a light source light path is arranged between the second light source 121 and the light splitting sheet 331, and a detection light path is arranged between the light splitting sheet 331 and the second photoelectric sensor 122.
Referring to fig. 4, 5 and 6, in some embodiments, the first recess 130 is configured in a cuboid shape, and the optical path splitter 300 adapted thereto is also configured in a cuboid shape. Of course, the corner of the first groove 130 may be disposed in an arc, and the connection between the adjacent sides of the optical path splitter 300 adapted thereto is also disposed in an arc. The first groove 130 and the optical path distributor 300 have smooth appearance, smooth transition, no edges and corners, easy matching and good use effect. In other embodiments, the side surface of the first groove 130 is provided with two picking grooves 113 for picking up the optical path splitter 300, and the connection line of the two picking grooves 113 is parallel to the center line of the first channel 110. The arrangement of the taking groove 113 greatly facilitates the taking and placing of the optical path distributor 300 in the first groove 130, and improves the convenience of use of the optical path distributor 300. In other embodiments, the bottom of the optical path distributor 300 is provided with a third through hole for assisting in taking out the light splitting sheet 331, and the third through hole is in communication with the deep groove 330. The third through hole can eject the light splitting sheet 331 from the bottom of the deep groove 330 by adopting a sharp object when the light splitting sheet 331 is replaced, so that the light splitting sheet 331 is greatly convenient to take. In still other embodiments, a first annular clamping groove for installing the first optical filter 311 is provided in the circumferential direction of the first through hole 310, and a second annular clamping groove for installing the second optical filter 321 is provided in the circumferential direction of the second through hole 320. The arrangement of the first annular clamping groove and the second annular clamping groove facilitates the installation of the first optical filter 311 and the second optical filter 321, so that the installation is convenient, the fixation is firm, and the usability of the optical path distributor 300 is improved.
Referring to fig. 4, in some embodiments, the second groove 140 includes a first groove body, a second groove body, and a third groove body that are sequentially connected, where the first groove body, the second groove body, and the third groove body are connected in a U shape, and a center line of the second groove body coincides with a center line of the second channel 120. The second groove 140 is arranged in a U shape, the flow cell 400 arranged in the second groove 140 is also arranged in a U shape, the second groove 140 is tightly matched with the flow cell 400, the installation of the flow cell 400 is facilitated, and the arrangement of an optical path is facilitated; meanwhile, the flow cell 400 is convenient to connect with an external pipeline, has reasonable layout, further reduces the volume of the multi-parameter self-correcting optical detector, and simplifies the structure of the multi-parameter self-correcting optical detector.
In general, the case 100 and the top cover 200 are made of black Polyoxymethylene (POM) engineering plastics, which can improve the workability and corrosion resistance of the process, and the case 100 and the top cover 200 are rectangular parallelepiped. The optical path distributor 300 is also made of black Polyoxymethylene (POM), the optical path distributor 300 is a cube, and the first groove 130 adapted to the optical path distributor 300 is also a cube. The first light source 111 and the second light source 121 are both LED lamps, and the wavelengths of the first light source 111 and the second light source 121 are different; the first photosensor 112 and the second photosensor 122 are each photodiodes. The flow cell 300 is made of quartz glass and is used for containing reaction solution, and the flow cell 300 is also connected with an external pipeline through a silica gel pipe.
In some embodiments, one end of the first channel 110 is provided with a first light source mounting hole for mounting the first light source 111, the first light source mounting hole is coaxially arranged with the first channel 110, and the arrangement of the first light source mounting hole facilitates the mounting of the first light source 111 and facilitates the smooth entry of the light beam of the first light source 111 into the first channel 110, and the diameter of the first light source mounting hole is generally larger than that of the first channel 110; the other end of the first channel 110 is provided with a first sensor mounting hole for mounting the first photoelectric sensor 112, and the first sensor mounting hole is coaxially arranged with the first channel 110; the arrangement of the first sensor mounting hole facilitates the installation of the first photoelectric sensor 112, and also facilitates the smooth arrival of the light beam in the first channel 110 at the first photoelectric sensor 112, and the diameter of the first sensor mounting hole is generally larger than that of the first channel 110. Likewise, one end of the second channel 120 is provided with a second light source mounting hole for mounting the second light source 121, the second light source mounting hole is coaxially arranged with the second channel 120, and the arrangement of the second light source mounting hole facilitates the mounting of the second light source 121 and facilitates the smooth entering of the light beam of the second light source 121 into the second channel 120, and the diameter of the second light source mounting hole is generally larger than that of the second channel 120; the other end of the second channel 120 is provided with a second sensor mounting hole for mounting a second photoelectric sensor 122, and the second sensor mounting hole is coaxially arranged with the second channel 120; the second sensor mounting hole is arranged, so that the second photoelectric sensor 122 is conveniently mounted, the light beam in the second channel 120 can smoothly reach the second photoelectric sensor 122, and the diameter of the second sensor mounting hole is usually larger than that of the second channel 120.
In other embodiments, the first light source 111 is provided with a first light source mounting seat, the outside of the first light source mounting seat is provided with first light source external threads, and the inside of the first light source mounting hole is provided with first light source internal threads matched with the first light source external threads; the first light source mounting seat is matched with the first light source mounting hole, so that the first light source 111 is quickly mounted; in general, the first light source mounting seat is further provided with a rotating part at one end far away from the first light source 111, the rotating part is arranged in a hexagonal prism, and the arrangement of the rotating part facilitates the installation and disassembly of the first light source 111 on the first channel 110, and is convenient to use. The second light source 121 is provided with a second light source mounting seat, the outside of the second light source mounting seat is provided with second light source external threads, and the inside of the second light source mounting hole is provided with second light source internal threads matched with the second light source external threads; the second light source mounting seat is matched with the second light source mounting hole, so that the second light source 121 is quickly mounted; in general, the second light source mounting seat is also provided with a rotating portion disposed in a hexagonal prism at an end far away from the second light source 121, so as to facilitate the installation and the disassembly of the second light source 121 on the second channel 120, and facilitate the use. The first photoelectric sensor is provided with a first sensor mounting seat, a first sensor external thread is arranged outside the first sensor mounting seat, and a first sensor internal thread matched with the first sensor external thread is arranged inside the first sensor mounting hole; the first sensor mounting seat is matched with the first sensor mounting hole, so that the first photoelectric sensor 112 is quickly mounted; in general, a rotating portion disposed in a regular hexagonal prism is also disposed at an end of the first sensor mounting seat away from the first photoelectric sensor 112, so as to facilitate the mounting and dismounting of the first photoelectric sensor 112 on the first channel 110. The second photoelectric sensor 122 is provided with a second sensor mounting seat, the outside of the second sensor mounting seat is provided with second sensor external threads, and the inside of the second sensor mounting hole is provided with second sensor internal threads matched with the second sensor external threads; the second sensor mounting seat is matched with the second sensor mounting hole, so that the second photoelectric sensor 122 is quickly mounted; in general, a rotating portion disposed in a regular hexagonal prism is also disposed at an end of the second sensor mounting seat away from the second photoelectric sensor 122, so as to facilitate the installation and removal of the second photoelectric sensor 122 on the second channel 120.
Principle of operation
Referring to fig. 2, incident light I 0 emitted by the first light source 111 is subjected to narrow-band filtering through the first optical filter 311, and part of the emitted light beam is reflected by the light splitting sheet 331 and passes through the flow cell 300 to irradiate on the second photoelectric sensor 122, so as to obtain light intensity I 1 of an emergent light detection light path; the other part of light beam emitted by the first light source 111 penetrates through the light splitting sheet 331 and irradiates the first photoelectric sensor 112 to obtain the light intensity I 2 of an emergent light reference light path; incident light I 0' emitted by the second light source 121 is subjected to narrow-band filtering through the second optical filter 321, and part of light beams pass through the light-splitting sheet 331 and pass through the flow cell 300 to be irradiated on the second photoelectric sensor 122, so that light intensity I 3 of a detection light path is obtained; the other part of the light beam emitted by the second light source 121 is reflected by the light splitting sheet 331 and irradiates the first photoelectric sensor 112, so as to obtain the light intensity I 4 of the reference light path.
Measurement of parameter 1, according to lambert beer's law:
A1＝lg(I1/I0)
A2＝lg(I2/I0)
A1-A2＝lg(I1/I0)-(I2/I0)
＝lgI1-lgI0-lgI2+lgI0
＝lgI1-lgI2
=lg (I 1/ I2) … … … … … … … … … … … … … … … … … … formula (1)
Wherein A 1 is the absorbance of the detection light path;
A 2 is the reference light path absorbance;
Similarly, another parameter determination principle is as follows:
A3＝lg(I3/I0’)
A4＝lg(I4/I0’)
A3-A4＝lg(I3/I0')-(I4/I0)
＝lgI3-lgI0'-lgI4+lgI0’
＝lgI3-lgI4
=lg (I 3/ I4) … … … … … … … … … … … … … … … … … … formula (2)
Wherein A 3 is the absorbance of the detection light path;
A 4 is the reference light path absorbance.
Since the reference optical path does not pass through the flow cell 300, the light intensity of the light beam emitted from the light source and the light beam received by the photosensor will not change at a short distance, so I 2＝I0,I4＝I0' is calculated as a 2＝0,A4 =0. Is brought into equations (1) and (2), a 1＝lg(I1/I2),A3＝lg(I3/I4. The obtained result is irrelevant to the incident light I 0, so that the measurement of double parameters of a single detection device is realized, and the interference possibly caused by the fluctuation of the light source is corrected.
Therefore, compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the dual light sources and dual light paths are adopted, the light splitting sheet 331, the first light filter 311 and the second light filter 321 are coupled to one light path distributor 300, the first light filter 311 and the second light filter 321 are used for filtering stray light or reducing the intensity of a light source, so that light beams obtained by the light splitting sheet 331 are purer, light beams transmitted and reflected by the light splitting sheet 331 enter a detection light path and a reference light path according to practical purposes, different parameters adopt different light paths to finish data measurement through the same light path distributor 300, detection of different parameters is realized on one optical detector, and the optical detector has the advantages of simple structure, small volume, material consumption saving, low cost, abandoning the traditional optical fiber transmission mode, avoiding the fragmentation problem caused by vibration, aging and the like in the long-term use process of the traditional optical fiber transmission mode, and improving the structural stability of the optical detector. In addition, the optical detector is also provided with a reference light path, the fluctuation of the light source is corrected through the reference light path, the problem of light intensity change of the light source caused by attenuation and voltage fluctuation is solved, the consistency of a measurement result is ensured, and the high-efficiency, rapid and low-cost monitoring of the water quality of the offshore seawater ecological environment is realized.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A multiparameter self-correcting optical detector, comprising:
The shell is provided with a first channel and a second channel in a penetrating manner on the side face of the shell, the first channel and the second channel are vertically arranged, a first groove is formed in the intersection of the first channel and the second channel, a second groove is formed in one side of the first groove, and the second groove is arranged on the second channel;
The light source comprises a first light source and a second light source, the first light source is arranged at one end of the first channel, and the second light source is arranged at one end of the second channel close to the first groove;
The light path distributor is matched with the first groove and is arranged in the first groove, a first through hole communicated with the first channel and a second through hole communicated with the second channel are arranged on the side face of the light path distributor in a penetrating mode, a first optical filter is arranged at one end, close to the first light source, of the first through hole, a second optical filter is arranged at one end, close to the second light source, of the second through hole, a deep groove which is vertically arranged is further arranged at the top of the light path distributor, the included angles between the deep groove and the first through hole and between the deep groove and the second through hole are 45 degrees, and a light splitting piece is arranged in the deep groove;
The flow cell is matched with the second groove and is arranged in the second groove;
The photoelectric sensor comprises a first photoelectric sensor and a second photoelectric sensor, the first photoelectric sensor is installed at one end, far away from the first light source, of the first channel, and the second photoelectric sensor is installed at one end, close to the second groove, of the second channel.
2. The multiparameter self-correcting optical detector of claim 1, wherein:
The second groove comprises a first groove body, a second groove body and a third groove body which are sequentially connected, wherein the first groove body, the second groove body and the third groove body are connected to form a U shape, and the center line of the second groove body is coincident with the center line of the second channel.
3. The multiparameter self-correcting optical detector of claim 1, wherein:
the top of the shell is provided with a top cover which is detachably connected.
4. The multiparameter self-correcting optical detector of claim 1, wherein:
the bottom of the light path distributor is provided with a third through hole for assisting in taking out the light splitting sheet, and the third through hole is communicated with the deep groove.
5. The multiparameter self-correcting optical detector of claim 1, wherein:
The first through hole is circumferentially provided with a first annular clamping groove for mounting the first optical filter, and the second through hole is circumferentially provided with a second annular clamping groove for mounting the second optical filter.
6. The multiparameter self-correcting optical detector according to any one of claims 1-5, wherein:
one end of the first channel is provided with a first light source mounting hole for mounting the first light source, the other end of the first channel is provided with a first sensor mounting hole for mounting the first photoelectric sensor, and the first light source mounting hole and the first sensor mounting hole are both coaxially arranged with the first channel;
One end of the second channel is provided with a second light source mounting hole for mounting the second light source, the other end of the second channel is provided with a second sensor mounting hole for mounting the second photoelectric sensor, and the second light source mounting hole and the second sensor mounting hole are both coaxially arranged with the second channel.
7. The multiparameter self-correcting optical detector of claim 6, wherein:
the first light source is provided with a first light source mounting seat, a first light source external thread is arranged outside the first light source mounting seat, and a first light source internal thread matched with the first light source external thread is arranged inside the first light source mounting hole;
The second light source is provided with a second light source mounting seat, a second light source external thread is arranged outside the second light source mounting seat, and a second light source internal thread matched with the second light source external thread is arranged inside the second light source mounting hole;
The first photoelectric sensor is provided with a first sensor mounting seat, a first sensor external thread is arranged outside the first sensor mounting seat, and a first sensor internal thread matched with the first sensor external thread is arranged inside the first sensor mounting hole;
the second photoelectric sensor is provided with a second sensor mounting seat, a second sensor external thread is arranged outside the second sensor mounting seat, and a second sensor internal thread matched with the second sensor external thread is arranged inside the second sensor mounting hole.
8. The multiparameter self-correcting optical detector of claim 1, wherein:
The first groove is cuboid type setting, the corner of first groove is the circular arc setting.
9. The multiparameter self-correcting optical detector of claim 1, wherein:
The side of the first groove is provided with two taking grooves for taking the optical path distributor, and the connecting lines of the two taking grooves are parallel to the central line of the first channel.
10. A water quality analyzer, comprising a housing, characterized in that:
The interior of the housing is provided with a multiparameter self-correcting optical detector according to any one of claims 1-9.
CN202322319051.8U 2023-08-28 2023-08-28 Multi-parameter self-correction optical detector and water quality analyzer obtained by same Active CN220819821U (en)

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