CN111521569A - Multi-light-source rotary colorimetric tube colorimetric device and determination method thereof - Google Patents
Multi-light-source rotary colorimetric tube colorimetric device and determination method thereof Download PDFInfo
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Abstract
The invention discloses a multi-light-source rotary colorimetric tube colorimetric device and a determination method thereof, wherein the multi-light-source rotary colorimetric tube colorimetric device comprises a bottom fixing plate, a light filtering rotary disc motor, a motor supporting frame, a light filtering rotary disc, a colorimetric tube, a dustproof light guide cover, a colorimetric device, a gear motor fixing support and a gear driving motor, wherein the motor supporting frame, the dustproof light guide cover and the colorimetric device are all fixedly arranged on the bottom fixing plate; the LED light source in the LED combined light source has a plurality of fixed wavelengths, so that automatic switching can be realized; the optical filters in the optical filtering rotating disc have a plurality of fixed wavelengths, so that automatic switching can be realized; after the colorimetric tube rotates, the data acquisition range can be increased, more samples are provided for subsequent data processing, the requirement on the colorimetric tube during determination is reduced, and the influence on the determination data caused by abrasion of the wall of the colorimetric tube or uneven thickness of the colorimetric tube is reduced; the invention has simple structure and convenient operation and is worth popularizing.
Description
Technical Field
The invention relates to a water quality determination technology, in particular to a multi-light-source rotary colorimetric tube colorimetric device and a determination method thereof.
Background
In recent years, due to the popularization of rapid water quality measuring instruments, the instruments are replaced by tube colorimeters from the earliest pre-installed vessel colorimeters, and the tube colorimeters have the advantage of clearing up the colorimetric integration, so that the instruments are accepted by numerous users and manufacturers, and the tube colorimeters also bring about some very obvious defects, namely the defects of uneven tube wall thickness, easy scratching and abrasion of the colorimetric tubes, which all cause great interference on measured data.
Disclosure of Invention
The invention aims to provide a multi-light-source rotary colorimetric tube colorimetric device and a measuring method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-light source rotary colorimetric tube colorimetric device and a determination method thereof are disclosed, wherein the multi-light source rotary colorimetric tube colorimetric device comprises a bottom fixing plate, a light filtering rotary disk motor, a motor support frame, a light filtering rotary disk, a colorimetric tube, a dustproof light guide cover, a colorimetric device, a gear motor fixing support and a gear driving motor, wherein the motor support frame, the dustproof light guide cover and the colorimetric device are all fixedly arranged on the bottom fixing plate; the color comparison device is arranged on one side of the dustproof light guide cover, which is far away from the motor support frame, and the dustproof light guide cover is provided with a light channel which penetrates through one side of the color comparison device and extends into the color comparison device;
a convex lens is arranged on one side of the colorimetric device away from the dustproof light guide cover; a gear motor fixing support is fixedly mounted at the top of the colorimetric device, a gear driving motor is fixedly mounted on one side of the gear motor fixing support, and a pinion is arranged at the upper end of the gear driving motor; the upper end of the gear motor fixing support is provided with a large gear which is meshed with the small gear, the inner side of the large gear is fixedly provided with a spring bead used for clamping a colorimetric tube, and the colorimetric tube is clamped in the large gear, vertically penetrates through the gear motor fixing support and extends into the colorimetric device; and a gear cover plate for preventing the gear from protruding is arranged at the upper end of the large gear.
Preferably, a plurality of filters are mounted in the filter rotating disk.
Preferably, a position sensor for sensing the real-time position of the filtering rotary disk and correcting the position of the filtering rotary disk is arranged on the motor support frame at the same side of the filtering rotary disk motor.
Preferably, the LED combined light source is fixedly mounted at the right lower end of the motor support frame on the same side as the filtering rotary disk motor.
Preferably, one side that the convex lens kept away from the colorimetric device is provided with the receiver, just receiver fixed mounting is in one side of colorimetric device.
Preferably, the LED combined light source, the convex lens and the receiver are in the same horizontal plane.
A determination method of a multi-light source rotating colorimetric tube colorimetric device comprises the following steps:
s1: firstly, placing an aqueous solution to be detected in a colorimetric tube;
s2: clamping the colorimetric tube in the S1 in the gear wheel;
s3: starting a measuring command, and resetting the filtering rotating disc;
s4: selecting a light source with the wavelength of alpha through an LED combined light source, and matching light beams emitted by the LED combined light source with the wavelength of an optical filter in the optical filter rotating disc;
s5, the light beam is emitted from one end of the LED combined light source and sequentially passes through the optical filter and the optical channel to reach the colorimetric tube, the light beam passes through the colorimetric tube and then forms a light spot through the focusing of the convex lens to be transmitted to the receiver to obtain a group of data, and the data a is obtained by the colorimetric tube rotating each time the colorimetric tube rotates β DEG1、a2、a3、a4、a5、a6、a7、......an；
S6: and removing the maximum value and the minimum value according to the data obtained in the step, and taking an average value.
Has the advantages that: compared with the prior art, the invention has the beneficial effects that:
1. in a single channel, the LED light sources in the LED combined light source have a plurality of fixed wavelengths, so that automatic switching can be realized;
2. in a single channel, the optical filters in the optical filtering rotating disc have a plurality of fixed wavelengths, so that automatic switching can be realized;
3. in a single channel, the wavelength of a plurality of LEDs and a plurality of optical filters can be switched simultaneously;
4. the convex lens can focus the light passing through the colorimetric tube, and the focus is positioned at the receiving position of the receiver, so that the receiver receives all light beams, the data accuracy is improved, and the data is closer to the theoretical absorbance;
5. the colour comparison tube is rotatory the back, can improve data acquisition's scope, for follow-up data processing provides more samples, reduces the requirement to the colour comparison tube when surveing, reduces the influence that colour comparison tube wall wearing and tearing or colour comparison tube thickness are inhomogeneous to cause the survey data.
Drawings
Fig. 1 is an overall schematic view of a multi-light-source rotary colorimetric tube colorimetric device according to the present invention.
Fig. 2 is an exploded view of a structure of a multi-light-source rotating colorimetric tube colorimetric device according to the present invention.
Fig. 3 is a working state diagram of a multi-light-source rotating colorimetric tube colorimetric device according to the present invention. .
In the drawings: the device comprises a position sensor 1, a light filtering rotary disk motor 2, an LED combined light source 3, a motor support 4, a light filtering rotary disk 5, a light filter 6, a dustproof light guide cover 7, a bottom fixing plate 8, a colorimetric device 9, a convex lens 10, a gear motor fixing support 11, a spring bead 12, a gear wheel 13, a pinion 14, a gear cover plate 15, a colorimetric tube 16, a gear driving motor 17, a receiver 18 and an optical channel 19.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Examples
Referring to the attached drawings in the specification, in the embodiment of the invention, the multi-light-source rotating colorimetric tube colorimetric device comprises a bottom fixing plate 4, a light filtering rotating disk motor 2, a motor support frame 4, a light filtering rotating disk 5, a colorimetric tube 16, a dustproof light guide cover 7, a colorimetric device 9, a gear motor fixing support 11 and a gear driving motor 17, wherein the motor support frame 4, the dustproof light guide cover 7 and the colorimetric device 9 are all fixedly installed on the bottom fixing plate 8, the light filtering rotating disk motor 2 is fixedly installed on one side of the motor support frame 4, the light filtering rotating disk 5 is installed on one side of the motor support frame 4 far away from the light filtering rotating disk motor 2, the dustproof light guide cover 7 covers one side of the light filtering rotating disk 5, and one side of the dustproof light guide cover 7 is in contact with the motor support frame 4 to surround; the color comparison device 9 is arranged on one side, away from the motor support frame 4, of the dustproof light guide cover 7, a light channel 19 is arranged on the dustproof light guide cover 7, and the light channel 19 penetrates through one side of the color comparison device 9 and extends into the color comparison device;
a convex lens 10 is arranged on one side of the colorimetric device 9 away from the dustproof light guide cover 7; a gear motor fixing support 11 is fixedly installed at the top of the colorimetric device 9, a gear driving motor 17 is fixedly installed at one side of the gear motor fixing support 11, and a pinion 14 is arranged at the upper end of the gear driving motor 17; a large gear 13 meshed with a small gear 14 is mounted at the upper end of the gear motor fixing support 11, a spring bead 12 used for clamping a colorimetric tube 16 is fixedly mounted on the inner side of the large gear 13, and the colorimetric tube 16 is clamped on the spring bead 12, vertically penetrates through the gear motor fixing support 11 and extends into the colorimetric device 9; the upper end of the big gear 13 is provided with a gear cover plate 15 for preventing the gear from protruding.
Further, a plurality of filters 6 are mounted in the filter rotating disk 5.
Furthermore, a position sensor 1 for sensing the real-time position of the filtering rotary disk 5 and correcting the position of the filtering rotary disk 5 is arranged on the horizontal position of the motor support frame 4 on the same side as the filtering rotary disk motor 2.
Further, an LED combined light source 3 is fixedly mounted at the right lower end of the motor support frame 4 on the same side with the filtering rotary disk motor 2.
Further, a receiver 18 is disposed on a side of the convex lens 10 away from the colorimetric device 9, and the receiver 18 is fixedly mounted on a side of the colorimetric device 9.
Further, the LED combined light source 3, the convex lens 10 and the receiver 18 are in the same horizontal plane.
A determination method of a multi-light source rotating colorimetric tube colorimetric device comprises the following steps:
s1: firstly, placing the aqueous solution to be detected in a colorimetric tube 16;
s2: clamping the colorimetric cylinder in the S1 in the large gear 13;
s3: starting a measuring command, and resetting the filtering rotating disc 5;
s4: selecting a light source with the wavelength of alpha through the LED combined light source 3, and matching the light source emitted by the LED combined light source 3 with the optical filter 6 in the optical filter rotating disc 5 through the wavelength;
s5, the light source from one end of the LED combined light source 3 passes through the optical filter 6 and the optical channel 19 to the color comparison tube 16, the light beam passes through the color comparison tube 16 and then forms a light spot through the focusing of the convex lens 10, the light spot is transmitted to the receiver to obtain data, and the data a is obtained by the rotation of the color comparison tube 16 at each β degrees1、a2、a3、 a4、a5、a6、a7、......an
S6: and removing the maximum value and the minimum value according to the data obtained in the step, and taking an average value.
The working principle is as follows: when the device is used, a liquid to be measured is put into a cuvette, the cuvette 16 is fixed in a bull gear 13 by a plurality of spring beads 12 (including but not limited to the fixing mode), then a measurement command is started, the filtering rotary disk 5 is reset by the position sensor 1, the filtering rotary disk 5 is driven by a filtering rotary disk motor 2 fixed on a motor support frame 4 to rotate and reset, the filtering rotary disk 5 is reset every time the measurement command is started when the measurement command is carried out, then the wavelength of a light source in the LED combined light source 3 is selected according to the difference of measured substances, the filtering rotary disk 5 starts to rotate and match with the optical filter 6 with the same wavelength in the filtering rotary disk 5, a light beam is emitted by the LED combined light source 3, then the light beam passes through the optical filter 6 and the light channel 19 to reach the cuvette 16, and forms a light spot by the focusing of the convex lens 10 after passing through the cuvette 16, a set of data is obtained for transmission to the receiver 18.
Respectively measuring a sample I, a sample II, a sample III and a sample IV by utilizing the working principle and the measuring method:
sample No
A determination method of a multi-light source rotating colorimetric tube colorimetric device comprises the following steps:
s1: firstly, placing the aqueous solution to be detected in a colorimetric tube 16;
s2: clamping the colorimetric cylinder 16 in the S1 in the large gear 13;
s3: starting a measuring command, and resetting the filtering rotating disc 5;
s4: selecting a light source with the wavelength of 420nm through the LED combined light source 3, and matching light beams emitted by the LED combined light source 3 with the optical filter 6 in the optical filter rotating disc 5 through the wavelength;
s5: the light beam is emitted from one end of the LED combined light source 3 and sequentially passes through the optical filter 6 and the optical channel 19 to reach the colorimetric tube 16, and the light beam passes through the colorimetric tube 16 and then forms a light spot through the focusing of the convex lens 10 to be transmitted to the receiver to obtain a group of data. Data of 0.312Abs, 0.314Abs, 0.318Abs, 0.325Abs, 0.314Abs, 0.315Abs, 0.316Abs, 0.313Abs and 0.314Abs are obtained for each 20 ° rotation of the cuvette 16;
s6: and (4) removing the maximum value and the minimum value according to the data obtained in the step, and taking an average value, wherein the obtained data is shown in a table I.
Watch 1
The working principle is as follows: when the device is used, a liquid to be measured is put into a cuvette, the cuvette 16 is fixed in a bull gear 13 by a plurality of spring beads 12 (including but not limited to the fixing mode), then a measurement command is started, the filtering rotary disk 5 is reset by the position sensor 1, the filtering rotary disk 5 is driven by a filtering rotary disk motor 2 fixed on a motor support frame 4 to rotate and reset, the filtering rotary disk 5 is reset every time the measurement command is started when the measurement command is carried out, then the wavelength of a light source in the LED combined light source 3 is selected according to the difference of measured substances, the filtering rotary disk 5 starts to rotate and match with the optical filter 6 with the same wavelength in the filtering rotary disk 5, a light beam is emitted by the LED combined light source 3, then the light beam passes through the optical filter 6 and the light channel 19 to reach the cuvette 16, and forms a light spot by the focusing of the convex lens 10 after passing through the cuvette 16, a set of data is obtained for transmission to the receiver 18.
Sample No. 2
A determination method of a multi-light source rotating colorimetric tube colorimetric device comprises the following steps:
s1: firstly, placing the aqueous solution to be detected in a colorimetric tube 16;
s2: clamping the colorimetric cylinder 16 in the S1 in the large gear 13;
s3: starting a measuring command, and resetting the filtering rotating disc 5;
s4: selecting a light source with the wavelength of 610nm through the LED combined light source 3, and matching the light source emitted by the LED combined light source 3 with the optical filter 6 in the optical filter rotating disc 5 through the wavelength;
s5: the light beam is emitted from one end of the LED combined light source 3 and sequentially passes through the optical filter 6 and the optical channel 19 to reach the colorimetric tube 16, and the light beam passes through the colorimetric tube 16 and then forms a light spot through the focusing of the convex lens 10 to be transmitted to the receiver to obtain a group of data. Data of 0.358Abs, 0.342Abs, 0.345Abs, 0.342Abs, 0.343Abs, 0.344Abs and 0.343Abs are obtained for each 20 ° rotation of the cuvette 16;
s6: and (4) removing the maximum value and the minimum value according to the data obtained in the step, and taking an average value to obtain data which is shown in a table II.
Watch two
The working principle is as follows: when the device is used, a liquid to be measured is put into a cuvette, the cuvette 16 is fixed in a bull gear 13 by a plurality of spring beads 12 (including but not limited to the fixing mode), then a measurement command is started, the filtering rotary disk 5 is reset by the position sensor 1, the filtering rotary disk 5 is driven by a filtering rotary disk motor 2 fixed on a motor support frame 4 to rotate and reset, the filtering rotary disk 5 is reset every time the measurement command is started when the measurement command is carried out, then the wavelength of a light source in the LED combined light source 3 is selected according to the difference of measured substances, the filtering rotary disk 5 starts to rotate and match with the optical filter 6 with the same wavelength in the filtering rotary disk 5, a light beam is emitted by the LED combined light source 3, then the light beam passes through the optical filter 6 and the light channel 19 to reach the cuvette 16, and forms a light spot by the focusing of the convex lens 10 after passing through the cuvette 16, a set of data is obtained for transmission to the receiver 18.
Sample No. three
A determination method of a multi-light source rotating colorimetric tube colorimetric device comprises the following steps:
s1: firstly, placing the aqueous solution to be detected in a colorimetric tube 16;
s2: clamping the colorimetric cylinder 16 in the S1 in the large gear 13;
s3: starting a measuring command, and resetting the filtering rotating disc 5;
s4: selecting a light source with the wavelength of 570nm through the LED combined light source 3, and matching the light source emitted by the LED combined light source 3 with the optical filter 6 in the optical filter rotating disc 5 through the wavelength;
s5: the light beam is emitted from one end of the LED combined light source 3 and sequentially passes through the optical filter 6 and the optical channel 19 to reach the cuvette 16, and after passing through the cuvette 16, the light beam is focused by the convex lens 10 to form a light spot and transmitted to the receiver 10 to obtain a set of data. The data obtained by rotating the colorimetric tube 16 by 20 degrees are respectively 0.621Abs, 0.619Abs, 0.623Abs, 0.620Abs and 0.622 Abs; 0.622Abs, 0.625 Abs;
s6: and (4) removing the maximum value and the minimum value according to the data obtained in the step, and taking an average value to obtain data which is shown in a third table.
Watch III
The working principle is as follows: when the device is used, a liquid to be measured is put into a cuvette, the cuvette 16 is fixed in a bull gear 13 by a plurality of spring beads 12 (including but not limited to the fixing mode), then a measurement command is started, the filtering rotary disk 5 is reset by the position sensor 1, the filtering rotary disk 5 is driven by a filtering rotary disk motor 2 fixed on a motor support frame 4 to rotate and reset, the filtering rotary disk 5 is reset every time the measurement command is started when the measurement command is carried out, then the wavelength of a light source in the LED combined light source 3 is selected according to the difference of measured substances, the filtering rotary disk 5 starts to rotate and match with the optical filter 6 with the same wavelength in the filtering rotary disk 5, a light beam is emitted by the LED combined light source 3, then the light beam passes through the optical filter 6 and the light channel 19 to reach the cuvette 16, and forms a light spot by the focusing of the convex lens 10 after passing through the cuvette 16, a set of data is obtained for transmission to the receiver 18.
Sample No. 4
A determination method of a multi-light source rotating colorimetric tube colorimetric device comprises the following steps:
s1: firstly, placing the aqueous solution to be detected in a colorimetric tube 16;
s2: clamping the colorimetric cylinder 16 in the S1 in the large gear 13;
s3: starting a measuring command, and resetting the filtering rotating disc 5;
s4: selecting a light source with the wavelength of 470nm through the LED combined light source 3, and matching the light source emitted by the LED combined light source 3 with the optical filter 6 in the optical filter rotating disc 5 through the wavelength;
s5: the light beam is emitted from one end of the LED combined light source 3 and sequentially passes through the optical filter 6 and the optical channel 19 to reach the colorimetric tube 16, and the light beam passes through the colorimetric tube 16 and then forms a light spot through the focusing of the convex lens 10 to be transmitted to the receiver to obtain a group of data. Data of 0.473Abs, 0.475Abs, 0.482Abs, 0.477Abs, 0.472Abs, 0.473Abs, 0.470Abs, 0.474Abs, 0.470Abs were obtained for each 20 ° rotation of the cuvette 16;
s6: and (4) removing the maximum value and the minimum value according to the data obtained in the step, and taking an average value to obtain data which is shown in a fourth table.
Watch four
The working principle is as follows: when the device is used, a liquid to be measured is put into a cuvette, the cuvette 16 is fixed in a bull gear 13 by a plurality of spring beads 12 (including but not limited to the fixing mode), then a measurement command is started, the filtering rotary disk 5 is reset by the position sensor 1, the filtering rotary disk 5 is driven by a filtering rotary disk motor 2 fixed on a motor support frame 4 to rotate and reset, the filtering rotary disk 5 is reset every time the measurement command is started when the measurement command is carried out, then the wavelength of a light source in the LED combined light source 3 is selected according to the difference of measured substances, the filtering rotary disk 5 starts to rotate and match with the optical filter 6 with the same wavelength in the filtering rotary disk 5, a light beam is emitted by the LED combined light source 3, then the light beam passes through the optical filter 6 and the light channel 19 to reach the cuvette 16, and forms a light spot by the focusing of the convex lens 10 after passing through the cuvette 16, a set of data is obtained for transmission to the receiver 18.
In the process, in a single channel, the LED light sources in the LED combined light source 3 have a plurality of fixed wavelengths, so that automatic switching can be realized; in a single channel, the optical filters 6 in the optical filtering rotating disk 5 have a plurality of fixed wavelengths, so that automatic switching can be realized; in a single channel, simultaneous switching of multiple LED wavelengths and multiple optical filters 6 can be realized; the convex lens 10 can focus the light passing through the colorimetric tube 16, and the focus is positioned at the receiving position of the receiver 18, so that the receiver 18 receives all light beams, the data accuracy is improved, and the data is closer to the theoretical absorbance; after the colorimetric tube 16 rotates, the data acquisition range can be increased, more samples are provided for subsequent data processing, the requirement on the colorimetric tube 16 during determination is reduced, and the influence on the determination data caused by the abrasion of the wall of the colorimetric tube 16 or the uneven thickness of the colorimetric tube 16 is reduced; the application has the advantages of simple structure, strong practicability and simple operation and is worth popularizing.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (7)
1. The utility model provides a rotatory colour comparison tube colorimetric device of many light sources which characterized in that: comprises a bottom fixing plate (8), a light filtering rotating disc motor (2), a motor supporting frame (4), a light filtering rotating disc (5), a colorimetric tube (16), a dustproof light guide cover (7), a colorimetric device (9), a gear motor fixing support (11) and a gear driving motor (17), the motor support frame (4), the dustproof light guide cover (7) and the colorimetric device (9) are all fixedly arranged on the bottom fixing plate (8), the filter rotating disc motor (2) is fixedly arranged on one side of the motor supporting frame (4), a filtering rotating disk (5) is arranged on one side of the motor supporting frame (4) far away from the filtering rotating disk motor (2), the dustproof light guide cover (7) is covered on one side of the filtering rotary disk (5), one side of the dustproof light guide cover (7) is in contact with the motor support frame (4) to surround the filtering rotary disk (5); the color comparison device (9) is arranged on one side, away from the motor support frame (4), of the dustproof light guide cover (7), a light channel (19) is arranged on the dustproof light guide cover (7), and the light channel (19) penetrates through one side of the color comparison device (9) and extends into the color comparison device;
a convex lens (10) is arranged on one side of the colorimetric device (9) far away from the dustproof light guide cover (7); a gear motor fixing support (11) is fixedly installed at the top of the colorimetric device (9), a gear driving motor (17) is fixedly installed on one side of the gear motor fixing support (11), and a small gear (14) is arranged at the upper end of the gear driving motor (17); a large gear (13) meshed with the small gear (14) is mounted at the upper end of the gear motor fixing support (11), a spring bead (12) used for clamping a colorimetric tube (16) is fixedly mounted on the inner side of the large gear (13), and the colorimetric tube (16) is clamped on the spring bead (12), vertically penetrates through the gear motor fixing support (11), and extends into the colorimetric device (9); and a gear cover plate (15) for preventing the gear from protruding is arranged at the upper end of the large gear (13).
2. The multi-light-source rotary colorimetric tube colorimetric device according to claim 1, wherein: and a plurality of optical filters (6) are arranged in the optical filtering rotary disk (5).
3. The multi-light-source rotary colorimetric tube colorimetric device according to claim 1, wherein: and a position sensor (1) for sensing the real-time position of the filtering rotating disk (5) and correcting the position of the filtering rotating disk (5) is arranged on the horizontal position on the same side of the motor supporting frame (4) as the filtering rotating disk motor (2).
4. The multi-light-source rotary colorimetric tube colorimetric device according to claim 1, wherein: and the LED combined light source (3) is fixedly arranged at the right lower end of the motor support frame (4) at the same side as the light filtering rotating disk motor (2).
5. The multi-light-source rotary colorimetric tube colorimetric device according to claim 1, wherein: one side that colorimetric device (9) were kept away from in convex lens (10) is provided with receiver (18), just receiver (18) fixed mounting is in one side of colorimetric device (9).
6. The multi-light-source rotary colorimetric tube colorimetric device according to claim 1, wherein: the LED combined light source (3), the convex lens (10) and the receiver (18) are on the same horizontal plane.
7. The method for determining the colorimetric device for multiple light sources rotation colorimetric tube according to claim 1, comprising the steps of:
s1: firstly, placing an aqueous solution to be detected in a colorimetric tube (16);
s2: clamping the colorimetric tube (16) in the S1 in the large gear (13);
s3: starting a measuring command, and resetting the filtering rotating disc (5);
s4: selecting a light source with the wavelength of alpha through the LED combined light source (3), and matching the light source emitted by the LED combined light source (3) with the optical filter (6) in the optical filter rotating disc (5) through the wavelength;
s5, the light source is emitted from one end of the LED combined light source (3) and sequentially passes through the optical filter (6) and the optical channel (19) to reach the colorimetric tube (16), the light beam passes through the colorimetric tube (16) and then forms a light spot through the focusing of the convex lens (10) to be transmitted to the receiver (18) to obtain a group of data, and the data a is obtained by the rotation of the colorimetric tube (16) at β degrees1、a2、a3、a4、a5、a6、a7、......an；
S6: and removing the maximum value and the minimum value according to the data obtained in the step, and taking an average value.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916801A (en) * | 2021-11-22 | 2022-01-11 | 津市市石油化工仪器有限公司 | Automatic petroleum product color determination device and determination method based on visual analysis |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2651746Y (en) * | 2003-09-15 | 2004-10-27 | 上海欧陆科仪有限公司 | Rotary lurbidity tester |
| US20090104710A1 (en) * | 2007-10-23 | 2009-04-23 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Colorimetric absorbance measurement method, apparatus and system |
| CN105300885A (en) * | 2015-12-02 | 2016-02-03 | 南京华欣分析仪器制造有限公司 | Optical path device of analytical instrument |
| CN206848151U (en) * | 2017-04-26 | 2018-01-05 | 深圳市环境监测中心站 | Colorimetric system and on-line chemical analysis instrument |
| CN108318428A (en) * | 2018-05-16 | 2018-07-24 | 德州尧鼎光电科技有限公司 | A kind of photoelectric sensing measuring device |
| CN212301300U (en) * | 2020-04-30 | 2021-01-05 | 山东格林凯瑞精密仪器有限公司 | Multi-light source rotary colorimetric tube colorimetric device |
-
2020
- 2020-04-30 CN CN202010395074.5A patent/CN111521569A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2651746Y (en) * | 2003-09-15 | 2004-10-27 | 上海欧陆科仪有限公司 | Rotary lurbidity tester |
| US20090104710A1 (en) * | 2007-10-23 | 2009-04-23 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Colorimetric absorbance measurement method, apparatus and system |
| CN105300885A (en) * | 2015-12-02 | 2016-02-03 | 南京华欣分析仪器制造有限公司 | Optical path device of analytical instrument |
| CN206848151U (en) * | 2017-04-26 | 2018-01-05 | 深圳市环境监测中心站 | Colorimetric system and on-line chemical analysis instrument |
| CN108318428A (en) * | 2018-05-16 | 2018-07-24 | 德州尧鼎光电科技有限公司 | A kind of photoelectric sensing measuring device |
| CN212301300U (en) * | 2020-04-30 | 2021-01-05 | 山东格林凯瑞精密仪器有限公司 | Multi-light source rotary colorimetric tube colorimetric device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916801A (en) * | 2021-11-22 | 2022-01-11 | 津市市石油化工仪器有限公司 | Automatic petroleum product color determination device and determination method based on visual analysis |
| CN113916801B (en) * | 2021-11-22 | 2024-01-05 | 津市市石油化工仪器有限公司 | Automatic petroleum product color measuring device and measuring method based on visual analysis |
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