CN105954217A - TOC (total organic carbon) detection system - Google Patents
TOC (total organic carbon) detection system Download PDFInfo
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- CN105954217A CN105954217A CN201610343850.0A CN201610343850A CN105954217A CN 105954217 A CN105954217 A CN 105954217A CN 201610343850 A CN201610343850 A CN 201610343850A CN 105954217 A CN105954217 A CN 105954217A
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- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
Abstract
The invention relates to a sensing system for water quality monitoring, in particular to a TOC (total organic carbon) detection system and solves problems of light scattering, difficulty in weak light signal extraction and range adjustment and flow rate limitation of ultraviolet absorptive TOC detection equipment in the prior art. Green light and purple light are emitted to a water sample chamber, absorbed by water in the water sample chamber, reflected by reflectors and emitted to corresponding detectors, and the light emitted to the detectors is quite weak; the detectors convert optical signals into electrical signals which are amplified through a phase-locked amplifier prior to being sent to corresponding processors, the processors compare a standard value with data obtained after loss resulted from absorption through water in the water sample chamber to obtain a loss difference value, and the content of TOC in water can be obtained by processing of the loss difference value. The TOC detection system is mainly used for water quality monitoring.
Description
Technical field
The present invention relates to a kind of sensor-based system for water quality monitoring.
Background technology
At present, water quality detection uses chemical formula method mostly, but chemical formula detection technique is all based on chemical method oxidation,
Its detection process is loaded down with trivial details, complicated, and time-consumingly, volume is relatively big, can cause the loss of chemical reagent, and secondary chemistry also can be caused dirty
Dye, expensive, and cannot be carried out monitoring in real time.
Ultraviolet absorption method is the detection method of a kind of physics mode, it is not necessary to chemical reaction, and the monitoring of uv absorption formula is capable of
Volume is little, low in energy consumption, speed fast, water quality can be carried out online monitoring, applied widely, but in the market
Uv absorption formula TOC detection equipment exist light scattering, that low light signals extracts is difficult, range regulation is difficult, the problem of current limliting speed,
Total organic carbon (Total Organic Carbon is called for short TOC).
Summary of the invention
The present invention is to solve light scattering, the low light signals extraction that prior art medium ultraviolet absorption TOC detection equipment exists
Problem difficult, that range regulation is difficult, current limliting is fast, the invention provides a kind of TOC detecting system.
A kind of TOC detecting system, including green-light source, No. 1 illuminator, No. 2 illuminators, No. 3 illuminators, No. 4 anti-
Light microscopic, green glow detector, No. 1 lock-in amplifier, No. 2 lock-in amplifiers, green glow processor, purple light light source, purple lights are visited
Survey device, purple light processor, self adaptation flow speed controller, water sample room, two sets with the light source fixing part of slideway and two sets with
The detector fixture of slideway；
Green-light source, green glow detector, purple light light source and purple light detector are arranged on the side of water sample room, No. 1 illuminator,
No. 2 illuminators, No. 3 illuminators and No. 4 illuminators are arranged on the opposite side of water sample room, No. 1 illuminator and No. 2 illuminators
Symmetrical in the horizontal direction, No. 3 illuminators and No. 4 illuminators are the most symmetrical；
The light of green-light source outgoing is incident to No. 1 illuminator after the transmission of water sample room, reflective through No. 1 illuminator and No. 2 successively
After mirror reflection, after the transmission of water sample room, it is incident to green glow detector, the data signal output of green glow detector and 1 through light again
The data signal input of number lock-in amplifier connects, the data signal output of No. 1 lock-in amplifier and green glow processor
Data signal input connects；
The light of purple light light source outgoing is incident to No. 3 illuminators after the transmission of water sample room, reflective through No. 3 illuminators and No. 4 successively
After mirror reflection, after the transmission of water sample room, it is incident to purple light detector, the data signal output of purple light detector and 2 through light again
The data signal input of number lock-in amplifier connects, the data signal output of No. 2 lock-in amplifiers and purple light processor
Data signal input connects；
Often overlap the light source fixing part with slideway and include light source sleeve, No. 1 rectangle fixture, optically focused ring and No. 1 slide rail, 1
Number rectangle fixture is provided with No. 1 through hole, and this No. 1 through hole runs through surface before and after No. 1 rectangle fixture, and light source sleeve is embedding
Entering in No. 1 through hole, optically focused ring covers No. 1 through hole of No. 1 rectangle fixture front surface, and optically focused ring and No. 1 rectangle
Fixture front surface is fixing to be connected, and the bottom of No. 1 rectangle fixture is provided with No. 1 groove,
No. 1 slide rail is embedded in No. 1 groove, and No. 1 rectangle fixture is slided even by No. 1 groove bottom it and No. 1 slide rail
Connect；
Green-light source is fixed in the light source sleeve in a set of light source fixing part with slideway, and the light direction of green-light source
With the light-emitting window of this light source sleeve towards identical；
Purple light light source is fixed in the light source sleeve in the another set of light source fixing part with slideway, and purple light light source go out light side
To with the light-emitting window of this light source sleeve towards identical；
Often overlap the detector fixture with slideway and include circular sleeve, No. 2 rectangle fixtures and No. 2 slide rails；No. 2 rectangles
Fixture is provided with No. 2 through holes, and these No. 2 through holes run through surface before and after No. 2 rectangle fixtures, and circular sleeve is embedded in 2
In number through hole, the bottom of No. 2 rectangle fixtures is provided with No. 2 grooves,
No. 2 slide rails are embedded in No. 2 grooves, and No. 2 rectangle fixtures are slided even by No. 2 grooves bottom it and No. 2 slide rails
Connect；
Green glow detector is fixed in the circular sleeve in a set of detector fixture with slideway,
Purple light detector is fixed in the circular sleeve in the another set of detector fixture with slideway,
Self adaptation flow speed controller includes water tank, water supply motor and flow divider；The outlet of described water tank and entering of flow divider
Being provided with water supply motor between the mouth of a river, water supply motor is used for the water in water tank is pumped into flow divider water inlet, the water outlet of flow divider
Mouth is connected by the water inlet of low pressure pipe with water sample room, and the refluxing opening of flow divider is by the water inlet of high pressure tapping pipe with water tank
Connection.
The structure of No. 1 described illuminator, No. 2 illuminators, No. 3 illuminators and No. 4 illuminators is identical.
It is respectively and fixedly provided with radiator valve in described light source sleeve and circular sleeve；
Described radiator valve includes temperature sensor, central controller and thermostat, and temperature sensor is used for carrying out temperature
Degree detection, the data signal output of temperature sensor is connected with the data signal input of central controller, central controller
Data signal output be connected with the control signal input of thermostat.
Described optically focused ring is provided with convex lens, for incident light is become directional light.
Described water sample room uses quartz material to make.
Described green-light source and purple light light source use LED to realize.
Described a kind of TOC detecting system, it also includes Temperature sampler, and it is indoor that this Temperature sampler is fixed on water sample,
For gathering the TWS that water sample is indoor.
Outgoing green glow of the present invention and purple light are to water sample room, and light, after water sample indoor water absorbs, after being reflected mirror reflection, is incident to
Corresponding detector, is now incident to detector light is the faintest, and detector converts optical signal into the signal of telecommunication, again warp
After lock-in amplifier amplifies, deliver to corresponding processor, processor the water indoor through water sample is absorbed after data after loss with
Standard value compares, it is thus achieved that loss difference, obtains the content of TOC in water by processing loss difference.
The problem that the present invention is directed to current limliting speed, proposing to use increases self adaptation flow speed control structure at water sample room water inlet, thus
Solve current limliting speed problem.By such scheme, invention achieves high accuracy, self adaptation flow velocity, quickly to carry out water quality organic
The purpose of thing on-line checking, has the highest practical value.
The present invention brings and provides the benefit that, the light source that the present invention uses is non-laser, it may occur that scattering, in order to avoid as far as possible
Light intensity loss, uses optically focused ring to prevent light scattering, and the light making light source send is all sent to detector and receives on window, passes through
Increase illuminator and increase light path, improve resolution.Light source sleeve can be installed, by changing the light source of different array on slide rail
Set can quickly make number of light sources increase up to increase the effect of light intensity.Water inlet in water sample room is provided with flow divider, real
The Self Adaptive Control of existing flow velocity.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of TOC detecting system of the present invention.
Fig. 2 is the structural representation of self adaptation flow speed controller of the present invention；
Fig. 3 is the structural representation of the light source fixing part with slideway；
Fig. 4 is the structural representation of the detector fixture with slideway；
Fig. 5 is the principle schematic of radiator valve；
Fig. 6 is the structural representation of the light source sleeve of different array.
Detailed description of the invention
Detailed description of the invention one: see Fig. 1 to Fig. 4 and present embodiment is described, a kind of TOC inspection described in present embodiment
Examining system, including 1, No. 1 illuminator 2-1 of green-light source, No. 2 illuminator 2-2, No. 3 illuminator 2-3, No. 4 illuminators
2-4,3, No. 1 lock-in amplifier 4-1 of green glow detector, No. 2 lock-in amplifier 4-2, green glow processor 5, purple light light sources
6, the light source with slideway is overlapped in purple light detector 7, purple light processor 8, self adaptation flow speed controller 9, water sample room 10, two
Fixture and two overlaps the detector fixture with slideway；
Green-light source 1, green glow detector 3, purple light light source 6 and purple light detector 7 are arranged on the side of water sample room 10, and 1
Number illuminator 2-1, No. 2 illuminator 2-2, No. 3 illuminator 2-3 and No. 4 illuminator 2-4 are arranged on another of water sample room 10
Side, No. 1 illuminator 2-1 and No. 2 illuminator 2-2 are symmetrical in the horizontal direction, No. 3 illuminator 2-3 and No. 4 illuminators
2-4 is the most symmetrical；
The light of green-light source 1 outgoing is incident to No. 1 illuminator 2-1 after the transmission of water sample room 10, successively through No. 1 illuminator
After 2-1 and No. 2 illuminator 2-2 reflections, being incident to green glow detector 3 through light again after the transmission of water sample room 10, green glow detects
The data signal input of the data signal output of device 3 and No. 1 lock-in amplifier 4-1 connects, No. 1 lock-in amplifier 4-1
Data signal output be connected with the data signal input of green glow processor 5；
The light of purple light light source 6 outgoing is incident to No. 3 illuminator 2-3 after the transmission of water sample room 10, successively through No. 3 illuminators
After 2-3 and No. 4 illuminator 2-4 reflections, being incident to purple light detector 7 through light again after the transmission of water sample room 10, purple light detects
The data signal input of the data signal output of device 7 and No. 2 lock-in amplifier 4-2 connects, No. 2 lock-in amplifier 4-2
Data signal output be connected with the data signal input of purple light processor 8；
Often overlap the light source fixing part with slideway and include light source sleeve 15-1, No. 1 rectangle fixture 15-2, optically focused ring 15-4
Being provided with No. 1 through hole 15-3 with No. 1 slide rail 15-6, No. 1 rectangle fixture 15-2, this No. 1 through hole 15-3 runs through No. 1
Surface before and after rectangle fixture 15-2, light source sleeve 15-1 is embedded in No. 1 through hole 15-3, and optically focused ring 15-4 covers
Before No. 1 through hole 15-3 of No. 1 rectangle fixture 15-2 front surface, and optically focused ring 15-4 and No. 1 rectangle fixture 15-2
Surface is fixing to be connected, and the bottom of No. 1 rectangle fixture 15-2 is provided with No. 1 groove 15-5,
No. 1 slide rail 15-6 is embedded in No. 1 groove 15-5, and No. 1 rectangle fixture 15-2 is by No. 1 groove 15-5 bottom it
It is slidably connected with No. 1 slide rail 15-6；
In the light source sleeve 15-1 that green-light source 1 is fixed in a set of light source fixing part with slideway, and green-light source 1
Light direction and this light source sleeve 15-1 light-emitting window towards identical；
In the light source sleeve 15-1 that purple light light source 6 is fixed in the another set of light source fixing part with slideway, and purple light light source
The light-emitting window of the light direction of 6 and this light source sleeve 15-1 towards identical；
Often overlap the detector fixture with slideway and include circular sleeve 16-1, No. 2 rectangle fixture 16-2 and No. 2 slide rails
16-6；No. 2 rectangle fixture 16-2 are provided with No. 2 through hole 16-3, and these No. 2 through hole 16-3 run through No. 2 rectangle fixtures
Surface before and after 16-2, circular sleeve 16-1 is embedded in No. 2 through hole 16-3, and the bottom of No. 2 rectangle fixture 16-2 sets
There are No. 2 groove 16-5,
No. 2 slide rail 16-6 are embedded in No. 2 groove 16-5, and No. 2 rectangle fixture 16-2 are by No. 2 groove 16-5 bottom it
It is slidably connected with No. 2 slide rail 16-6；
Green glow detector 3 is fixed in the circular sleeve 16-1 in a set of detector fixture with slideway,
Purple light detector 7 is fixed in the circular sleeve 16-1 in the another set of detector fixture with slideway,
Self adaptation flow speed controller 9 includes water tank 9-1, water supply motor 9-2 and flow divider 9-3；Described water tank 9-1 goes out
Water supply motor 9-2, water supply motor 9-2 it is provided with for by the water in water tank 9-1 between the water inlet of the mouth of a river and flow divider 9-3
Being pumped into flow divider 9-3 water inlet, the outlet of flow divider 9-3 is connected by the water inlet of low pressure pipe with water sample room 10,
The refluxing opening of flow divider 9-3 is connected with the water inlet of water tank 9-1 by high pressure tapping pipe.
Present embodiment, light source sleeve 15-1 is prior art, and light source sleeve 15-1 can be divided into the light source sleeve of different array.
A kind of TOC detecting system simple in construction of the present invention, by No. 1 illuminator 2-1, No. 2 illuminator 2-2,3
Number illuminator 2-3 and No. 4 illuminator 2-4 adds light path, simplifies the volume of TOC detecting system, by with cunning
The light source fixing part in road and with the regulation light path that the detector fixture of slideway can be real-time, solves light by optically focused ring 15-4
The light that source sends converges, and solves Discussion on Light Diffusion Caused, and No. 1 slide rail 15-6 can be provided with the light source sleeve regulation light of different battle array
By force, see Fig. 6, extract the small-signal after light is absorbed by the water in water sample room 10 by lock-in amplifier, and have employed
Adaptive unhurried current structure designs, it is achieved that the on-line monitoring of flow velocity.
The light source sleeve of different array can be installed on slide rail, can quickly make number of light sources increase reach by changing light source set
To the effect increasing light intensity.Water inlet in water sample room is provided with flow divider 9-3, it is achieved the Self Adaptive Control of flow velocity.
The liquid flowed out at water supply motor 9-2 has certain flow velocity, when flow rate of liquid now is in limiting flow rates
Time liquid all flow to water sample room 10 from low pressure pipe.When the flow rate of liquid flowed out at water supply motor is more than limit value,
Flow divider 9-3 spool moves to right, high pressure tapping pipe path, and a part of water is back in water tank, thus reaches to ensure low pressure pipe
In water flow velocity limit in the range of.
Detailed description of the invention two: present embodiment exists with the difference of a kind of TOC detecting system described in detailed description of the invention one
In, described No. 1 illuminator 2-1, No. 2 illuminator 2-2, No. 3 illuminator 2-3 and No. 4 illuminator 2-4 structure complete
Exactly the same.
Detailed description of the invention three: see Fig. 5 and illustrate described in present embodiment, present embodiment and detailed description of the invention one
The difference of a kind of TOC detecting system is, is respectively and fixedly provided with constant temperature in described light source sleeve 15-1 and circular sleeve 16-1
Controller 17；
Described radiator valve 17 includes temperature sensor 17-1, central controller 17-2 and thermostat 17-3, temperature
Sensor 17-1 is used for carrying out temperature detection, the data signal output of temperature sensor 17-1 and central controller 17-2
Data signal input connect, the control signal of the data signal output of central controller 17-2 and thermostat 17-3
Input connects.
Present embodiment, radiator valve 17 can control green-light source 1, green glow detector 3, purple light light source 6 and purple light and visit
Survey device 7 operating temperature, when its temperature is too high, can by thermostat 17-3 to green-light source 1, green glow detector 3,
Purple light light source 6 and purple light detector 7 dispel the heat.
Detailed description of the invention four: see Fig. 5 and illustrate described in present embodiment, present embodiment and detailed description of the invention one
The difference of a kind of TOC detecting system is, described optically focused ring 15-4 is provided with convex lens, for being become by incident light
Directional light.
Present embodiment, the light source that the present invention uses is non-laser, it may occur that scattering, in order to avoid light intensity loss as far as possible, can
Using quartz convex lens to make diverging light become directional light, the light making light source send is all sent to detector and receives on window, logical
Cross increase light microscopic and increase light path, improve resolution.
Detailed description of the invention five: present embodiment exists with the difference of a kind of TOC detecting system described in detailed description of the invention one
In, described water sample room 10 uses quartz material to make.
In present embodiment, water sample room 10 uses quartz material to make, and enhances transmittance and the light loss of light, improves inspection
Survey precision.
Detailed description of the invention six: present embodiment exists with the difference of a kind of TOC detecting system described in detailed description of the invention one
In, described green-light source 1 and purple light light source 6 use LED to realize.
Detailed description of the invention seven: present embodiment exists with the difference of a kind of TOC detecting system described in detailed description of the invention one
In, it also includes Temperature sampler, and this Temperature sampler is fixed in water sample room 10, for gathering the water in water sample room 10
Sample temperature.
Claims (7)
1. a TOC detecting system, it is characterised in that include green-light source (1), No. 1 illuminator (2-1), No. 2 anti-
Light microscopic (2-2), No. 3 illuminators (2-3), No. 4 illuminators (2-4), green glow detector (3), No. 1 lock-in amplifier (4-1),
No. 2 lock-in amplifiers (4-2), green glow processor (5), purple light light source (6), purple light detector (7), purple light processor (8),
Self adaptation flow speed controller (9), water sample room (10), two sets overlap the detection with slideway with the light source fixing part and two of slideway
Device fixture；
Green-light source (1), green glow detector (3), purple light light source (6) and purple light detector (7) are arranged on water sample room (10)
Side, No. 1 illuminator (2-1), No. 2 illuminators (2-2), No. 3 illuminators (2-3) and No. 4 illuminators (2-4) set
Put the opposite side in water sample room (10), No. 1 illuminator (2-1) and No. 2 illuminators (2-2) symmetrical in the horizontal direction,
No. 3 illuminators (2-3) and No. 4 illuminators (2-4) are the most symmetrical；
The light of green-light source (1) outgoing is incident to No. 1 illuminator (2-1) after water sample room (10) transmission, successively through No. 1
After illuminator (2-1) and No. 2 illuminator (2-2) reflections, after water sample room (10) transmission, it is incident to green glow detection through light again
Device (3), the data signal output of green glow detector (3) and the data signal input of No. 1 lock-in amplifier (4-1)
Connecting, the data signal output of No. 1 lock-in amplifier (4-1) is connected with the data signal input of green glow processor (5)；
The light of purple light light source (6) outgoing is incident to No. 3 illuminators (2-3) after water sample room (10) transmission, successively through No. 3
After illuminator (2-3) and No. 4 illuminator (2-4) reflections, after water sample room (10) transmission, it is incident to purple light detection through light again
Device (7), the data signal output of purple light detector (7) and the data signal input of No. 2 lock-in amplifiers (4-2)
Connecting, the data signal output of No. 2 lock-in amplifiers (4-2) is connected with the data signal input of purple light processor (8)；
Often overlap the light source fixing part with slideway and include light source sleeve (15-1), No. 1 rectangle fixture (15-2), optically focused ring (15-4)
With No. 1 slide rail (15-6), No. 1 rectangle fixture (15-2) is provided with No. 1 through hole (15-3), this No. 1 through hole (15-3)
Running through surface before and after No. 1 rectangle fixture (15-2), light source sleeve (15-1) is embedded in No. 1 through hole (15-3),
Optically focused ring (15-4) covers No. 1 through hole (15-3) of No. 1 rectangle fixture (15-2) front surface, and optically focused ring (15-4)
Fixing with No. 1 rectangle fixture (15-2) front surface and be connected, the bottom of No. 1 rectangle fixture (15-2) is provided with No. 1 groove
(15-5),
No. 1 slide rail (15-6) is embedded in No. 1 groove (15-5), and No. 1 rectangle fixture (15-2) is by No. 1 bottom it
Groove (15-5) is slidably connected with No. 1 slide rail (15-6)；
In the light source sleeve (15-1) that green-light source (1) is fixed in a set of light source fixing part with slideway, and green glow light
The light-emitting window of the light direction in source (1) and this light source sleeve (15-1) towards identical；
In the light source sleeve (15-1) that purple light light source (6) is fixed in the another set of light source fixing part with slideway, and purple light
The light-emitting window of the light direction of light source (6) and this light source sleeve (15-1) towards identical；
Often overlap the detector fixture with slideway and include circular sleeve (16-1), No. 2 rectangle fixtures (16-2) and No. 2
Slide rail (16-6)；No. 2 rectangle fixtures (16-2) are provided with No. 2 through holes (16-3), and these No. 2 through holes (16-3) are run through
Surface before and after No. 2 rectangle fixtures (16-2), circular sleeve (16-1) is embedded in No. 2 through holes (16-3), No. 2
The bottom of rectangle fixture (16-2) is provided with No. 2 grooves (16-5),
No. 2 slide rails (16-6) are embedded in No. 2 grooves (16-5), and No. 2 rectangle fixtures (16-2) are by No. 2 bottom it
Groove (16-5) is slidably connected with No. 2 slide rails (16-6)；
Green glow detector (3) is fixed on the circular sleeve (16-1) in a set of detector fixture with slideway Nei,
Purple light detector (7) is fixed on the circular sleeve (16-1) in the another set of detector fixture with slideway Nei,
Self adaptation flow speed controller (9) includes water tank (9-1), water supply motor (9-2) and flow divider (9-3)；Described water
It is provided with water supply motor (9-2), water supply motor (9-2) between outlet and the water inlet of flow divider (9-3) of case (9-1)
For the water in water tank (9-1) is pumped into flow divider (9-3) water inlet, the outlet of flow divider (9-3) passes through low pressure
Water pipe connects with the water inlet of water sample room (10), and the refluxing opening of flow divider (9-3) is by high pressure tapping pipe and water tank (9-1)
Water inlet connection.
A kind of TOC detecting system the most according to claim 1, it is characterised in that described No. 1 illuminator (2-1),
No. 2 illuminators (2-2), No. 3 illuminators (2-3) are identical with the structure of No. 4 illuminators (2-4).
A kind of TOC detecting system the most according to claim 1, it is characterised in that described light source sleeve (15-1)
Be respectively and fixedly provided with radiator valve (17) in circular sleeve (16-1)；
Described radiator valve (17) includes temperature sensor (17-1), central controller (17-2) and thermostat (17-3),
Temperature sensor (17-1) is used for carrying out temperature detection, and the data signal output of temperature sensor (17-1) controls with central authorities
The data signal input of device (17-2) connects, the data signal output of central controller (17-2) and thermostat (17-3)
Control signal input connect.
A kind of TOC detecting system the most according to claim 1, it is characterised in that described optically focused ring (15-4)
It is provided with convex lens, for incident light is become directional light.
A kind of TOC detecting system the most according to claim 1, it is characterised in that described water sample room (10) is adopted
Make with quartz material.
A kind of TOC detecting system the most according to claim 1, it is characterised in that described green-light source (1) and
Purple light light source (6) uses LED to realize.
A kind of TOC detecting system the most according to claim 1, it is characterised in that it also includes Temperature sampler,
This Temperature sampler is fixed in water sample room (10), is used for gathering the TWS in water sample room (10).
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Cited By (4)
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| CN106932354A (en) * | 2017-05-16 | 2017-07-07 | 中国电子科技集团公司第四十九研究所 | A kind of TOC water quality monitorings sensor |
| CN107144540A (en) * | 2017-04-07 | 2017-09-08 | 哈尔滨工程大学 | The device of KHP contents in a kind of ultraviolet-visible Spectrophotometric Determination |
| CN113310896A (en) * | 2021-05-28 | 2021-08-27 | 中冶宝钢技术服务有限公司 | Detection system and method for cloth bag in cloth bag dust remover |
| CN114235711A (en) * | 2022-02-24 | 2022-03-25 | 朗思传感科技(深圳)有限公司 | Miniaturized portable high-sensitivity gas measurement system |
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| CN113310896A (en) * | 2021-05-28 | 2021-08-27 | 中冶宝钢技术服务有限公司 | Detection system and method for cloth bag in cloth bag dust remover |
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