CN206095938U - Double -light -path surface scattering high range turbidity instrument - Google Patents
Double -light -path surface scattering high range turbidity instrument Download PDFInfo
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- CN206095938U CN206095938U CN201621101112.7U CN201621101112U CN206095938U CN 206095938 U CN206095938 U CN 206095938U CN 201621101112 U CN201621101112 U CN 201621101112U CN 206095938 U CN206095938 U CN 206095938U
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Abstract
The utility model discloses a double -light -path surface scattering high range turbidity instrument, include: emitted light's transmission subassembly, scattering are launched the light of subassembly and are held the measuring chamber of the water sample that awaits measuring, receive the receipt subassembly of scattered ray, the transmission subassembly is constituteed to be had: the light source is divided into the reverberation and wears half non -light tight opposite semitransparent mirror with optical axis one -tenth 45 and with the light source, receives the above -mentioned partly first detector of the reverberation of anti - semitransparent mirror, and the reverberation is reference signal, receives reference signal's signal processing unit, it has to receive the subassembly constitution: setting up in 90 directions of incident beam and receiving the second detector that pierces through the scattered light that light formed through the water sample surface of awaiting measuring, above -mentioned scattered light is as measuring -signal, and connect in the second detector and handle reference signal and measuring -signal obtains being surveyed the signal processing unit of the turbidity value of water sample. The utility model provides a high range turbidity instrument of double -light -path surface scattering, adopt double -light -path surface scattering method, reach fine measurement accuracy.
Description
Technical field
This utility model is related to water turbidity fields of measurement, particularly a kind of high range turbidity of double light path surface scattering
Instrument.
Background technology
The turbidity of water be in water the impurity such as different size, proportion, the float of shape, colloidal substance and microorganism to light institute
The expression language of effect is produced, is the expression of the quantization of water " clear " and " muddy ".Turbidity is the important indicator of water quality assessment, is adopted
The main task for making the water treatment plant at water source with surface water is the turbidity for reducing water, is allowed to meet the standard of national drinking water.Turbidity
On-line measurement is not only widely used in clean water treatment each operation process control, while also in food, medicine, change
The industries such as work are applied.According to the different purposes of water, have different requirements to turbidity, to the needs of transmissometer also it is corresponding not
Together；Need to be used in the turbidity of different places measurement raw water or pure water, and the turbidity of the high water of float, high range turbidity
Instrument has been designed with suitable necessity.High range transmissometer in the market is mostly using scattering method or transmission in sample
In method, but sample, scattering method is decayed due to color absorption of the incident illumination in transmitting procedure in sample and KPT Scatter, thus
In addition to more sensitive to color sensation, its measurement range is little, in generally 0-100NTU；And the transmitted intensity of transmission method with it is turbid
Exponentially attenuation relation is spent, and it is very sensitive to the color of water sample, thus be difficult to realize the accurate measurement of turbidity.We adopt
Surface scattering turbidimetry method be a kind of noncontact measuring method, i.e. scattered light receiving optics and receptor and water sample
It is non-contacting, it is to avoid optics receives the sludge of window etc., scale formation, and its measurement range is big, and its measurement range is reachable
More than 1000NTU, and the linearity is relatively good.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of a large amount of double light path surface scattering
Journey transmissometer；Using double light path surface scattering method, good certainty of measurement is reached；The high water of measurable float or raw water it is turbid
Degree, optical component need not contact water, it is not necessary to which Jing often cleans probe.
In order to realize above-mentioned target, this utility model is adopted the following technical scheme that：
A kind of double light path surface scattering high range transmissometer, including：The emitting module of transmitting light, scatters emitting module
Light simultaneously accommodates the measuring chamber of water sample to be measured, receives the receiving unit of scattering light；Emitting module composition has：Light source, with optical axis
Half-reflecting half mirror at 45 ° and that light source is divided into reflected light and penetrate light, the first of the reflected light of the above-mentioned half-reflecting half mirror of reception
Detector, reflected light are reference signal, receive the signal processing unit of reference signal；Receiving unit composition has：It is arranged at incidence
90 ° of directions of light beam simultaneously receive the second detector of the scattered light that penetrate light is formed through water sample surface to be measured, and above-mentioned scattered light is made
For measurement signal, be connected to the second detector and process reference signal and measurement signal obtain detected water sample turbidity value signal
Processing unit.
A kind of aforesaid double light path surface scattering high range transmissometer, measuring chamber are provided with water inlet, outlet.
A kind of aforesaid double light path surface scattering high range transmissometer, water inlet are located at higher than outlet, above-mentioned outlet
The bottom of measuring chamber.
A kind of aforesaid double light path surface scattering high range transmissometer, measuring chamber are provided with gap.
A kind of aforesaid double light path surface scattering high range transmissometer, also includes：Collimate under light source and to light
Process and stablize the multi-stage lens group of light intensity.
A kind of aforesaid double light path surface scattering high range transmissometer, multi-stage lens group composition have：It is big under light source
Lens, the biconvex lens under big lens and on half-reflecting half mirror are formed under above-mentioned biconvex lens and by penetrate light
The lenslet of directional light.
A kind of aforesaid double light path surface scattering high range transmissometer, also includes：The launch-box of parcel emitting module, parcel
The reception box of above-mentioned receiving unit.
A kind of aforesaid double light path surface scattering high range transmissometer, launch-box are provided with the transmitting end window of closing launch-box
Mouthful.
A kind of aforesaid double light path surface scattering high range transmissometer, the second detector have plus lens.
A kind of aforesaid double light path surface scattering high range transmissometer, is provided with ceramic heating flake behind plus lens.
It is of the present utility model to be beneficial in that：This utility model provides a kind of high range turbidity of double light path surface scattering
Instrument；Using double light path surface scattering method, good certainty of measurement is reached；The turbidity of the high water of measurable float or raw water, light
Learn components and parts and need not contact water, it is not necessary to which Jing often cleans probe；Receive, transmitting terminal and measuring chamber individually separate, dissipated using surface
Method measurement is penetrated, sensor maintenance is convenient；Using multi-stage lens group device, the eyeglass to water smoke is also easy to produce close to the measurement water surface enters
Row heat treated, reduces the probability occurred because of apparatus measures misalignment problem caused by ambient temperature cataclysm.
Description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present utility model；
The implication of reference in figure：
1 reception box, 2 signal processing units, 3 baffle plates, 4 second detectors, 5 ceramic heating flakes, 6 plus lens, 7
Measuring chamber, 8 outlets, 9 water inlets, 10 gaps, 11 launch-box, 12 transmitting terminal windows, 13 lenslets, 14 half is anti-
Pellicle mirror, 15 light sources, 16 big lens, 17 biconvex lens, 18 first detectors.
Specific embodiment
Make specific introduction to this utility model below in conjunction with the drawings and specific embodiments.
A kind of double light path surface scattering high range transmissometer, including：The emitting module of transmitting light, scatters emitting module
Light simultaneously accommodates the measuring chamber 7 of water sample to be measured, receives the receiving unit of scattering light；Emitting module composition has：Light source 15, with light
Axle is at 45 ° and by the half-reflecting half mirror 14 that 15 points of light source is reflected light and penetrate light, receives the reflection of above-mentioned half-reflecting half mirror 14
First detector 18 of light, reflected light is reference signal, receives the signal processing unit 2 of reference signal；Receiving unit composition has：
It is arranged at 90 ° of directions of incident beam and receives the second detector 4 of the scattered light that penetrate light is formed through water sample surface to be measured, on
Scattered light is stated as measurement signal, the second detector 4 is connected to and is processed reference signal and measurement signal obtains detected water sample
The signal processing unit 2 of turbidity value.As one kind preferably, light source 15 is LED light source 15.It should be noted that：In this device by
It is integrated on one piece of circuit board in the signal processing unit used by reception and transmitting terminal, circuit board is arranged on and receives in box, transmitting
The reference signal received in component is also transmitted to receive the signal processing unit on the circuit board in box.
Measuring chamber 7 is provided with water inlet 9, outlet 8;Water inlet 9 is higher than outlet 8, and above-mentioned outlet 8 is located at measuring chamber 7
Bottom.Measuring chamber 7 is provided with gap 10.Water sample flows into measuring chamber 7 from water inlet 9, flows out from outlet 8, and outlet 8 is the bottom of at
Portion, can effectively prevent the accumulation of silt, be provided with gap 10, and overflow occurs on the surface of sample, it is to avoid liquid level
Fluctuation and bubble etc..
Transmissometer, also includes：Carry out collimating the multi-stage lens group of process and stable light intensity located at light source 15 times and to light.It is many
Level lens group composition has：Big lens 16 under light source 15, the biconvex on big lens 16 times and half-reflecting half mirror 14
Lens 17, form the lenslet 13 of directional light located at above-mentioned biconvex lens 17 times and by penetrate light.
In order to allow receiving terminal and transmitting terminal independently to separate, transmissometer also includes：The launch-box 11 of parcel emitting module, bag
The reception box 1 for stating receiving unit is wrapped, box 1 is received and is arranged on the direction vertical with directional light.In order to protect eyeglass and play
Stop the effect of grieshoch, launch-box 11 is provided with the transmitting terminal window 12 of closing launch-box 11.
Second detector 4 has plus lens 6；The surface of the directional light Jing detected water sample after lenslet 13 is converted
After scattering, Jing plus lens 6 is converged and is received by the second detector 4 as the measurement signal in double-optical path.
In order to avoid optical glass fogging, the reception of scattered light is hindered, make turbidimetry more accurately and stable；Plus lens
6 are provided with ceramic heating flake 5 below.
Transmissometer also includes：The big casing of whole instrument is wrapped up, on above-mentioned big casing and for absorbing sample surfaces
The reflection baffle plate 3 for coming；Such design prevents the reflected light from causing measured value not into the second detector 4 Jing after multiple reflections
It is accurate.
Light source 15 Jing big lens 16, biconvex lens 17 be mapped to after half-reflecting half mirror 14 reflects formed reflected light and penetrate light this
Two kinds of light paths, reflected light are received and are sent to the first signal processing unit by the first detector 18, and the reflected light is used as double light path
Reference signal in measurement, penetrate light through lenslet 13 formed directional light be irradiated on the liquid level of sample, formation dissipate
Penetrate light and be set and receive with second detector 4 in 90 ° of directions of incident beam, the scattering light path is used as the survey in double-optical path
Amount signal, and secondary signal processing unit 2 is sent to, 2 pairs of reference signals for receiving of secondary signal processing unit and measurement are believed
Number processed, so as to obtain the turbidity value of detected water sample；It is proportional with scattered light signal intensity based on turbidity：C=k*I
Scattering+b, after introducing reference light, computing formula is changed into：C=k*I scattering/I refer to+b, are placed on denominator with reference to light intensity and participate in fortune
Calculate, the measurement brought so as to remove light source fluctuation or decay affects.
This utility model provides a kind of high range transmissometer of double light path surface scattering；Using double light path surface scattering method,
Reach good certainty of measurement；The turbidity of the high water of measurable float or raw water, uses the scattering method of non-cpntact measurement,
Optical component need not contact water, it is not necessary to which Jing often cleans probe, and the light intensity of wave for inciding sample surfaces is not with sample
Colourity and turbidity and change, measurement range width, good linearity.Receive, transmitting terminal and measuring chamber 7 individually separate, dissipated using surface
Method measurement is penetrated, sensor maintenance is convenient；Using multi-stage lens group device, the eyeglass to water smoke is also easy to produce close to the measurement water surface enters
Row heat treated, reduces the probability occurred because of apparatus measures misalignment problem caused by ambient temperature cataclysm.
Ultimate principle of the present utility model, principal character and advantage has been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit this utility model in any form, it is all by the way of equivalent or equivalent transformation
The technical scheme for being obtained, all falls within protection domain of the present utility model.
Claims (10)
1. a kind of double light path surface scattering high range transmissometer, it is characterised in that include：The emitting module of transmitting light, scattering
The light of emitting module simultaneously accommodates the measuring chamber of water sample to be measured, receives the receiving unit of scattering light；Above-mentioned emitting module composition
Have：Light source, half-reflecting half mirror at 45 ° with optical axis and that light source is divided into reflected light and penetrate light receive above-mentioned half-reflecting half mirror
Reflected light the first detector, above-mentioned reflected light is reference signal, receives the signal processing unit of above-mentioned reference signal；It is above-mentioned
Receiving unit composition has：It is arranged at 90 ° of directions of incident beam and receives the scattered light that penetrate light is formed through water sample surface to be measured
The second detector, above-mentioned scattered light is connected to above-mentioned second detector and processes reference signal and measurement as measurement signal
Signal obtains the signal processing unit of the turbidity value of detected water sample.
2. a kind of double light path surface scattering high range transmissometer according to claim 1, it is characterised in that above-mentioned measuring chamber
It is provided with water inlet, outlet.
3. a kind of double light path surface scattering high range transmissometer according to claim 2, it is characterised in that above-mentioned water inlet
Higher than outlet, above-mentioned outlet is located at the bottom of measuring chamber.
4. a kind of double light path surface scattering high range transmissometer according to claim 1, it is characterised in that above-mentioned measuring chamber
It is provided with gap.
5. a kind of double light path surface scattering high range transmissometer according to claim 1, it is characterised in that also include：If
Under above-mentioned light source and to light carry out collimating the multi-stage lens group of process and stable light intensity.
6. a kind of double light path surface scattering high range transmissometer according to claim 5, it is characterised in that above-mentioned multistage
Microscope group composition has：Big lens under above-mentioned light source, the biconvex lens under above-mentioned big lens and on half-reflecting half mirror,
The lenslet of directional light is formed under above-mentioned biconvex lens and by penetrate light.
7. a kind of double light path surface scattering high range transmissometer according to claim 1, it is characterised in that also include：Bag
The launch-box for stating emitting module is wrapped, the reception box of above-mentioned receiving unit is wrapped up.
8. a kind of double light path surface scattering high range transmissometer according to claim 7, it is characterised in that above-mentioned launch-box
It is provided with the transmitting terminal window of closing launch-box.
9. a kind of double light path surface scattering high range transmissometer according to claim 1, it is characterised in that above-mentioned second visits
Survey device and have plus lens.
10. a kind of double light path surface scattering high range transmissometer according to claim 9, it is characterised in that above-mentioned convergence
Ceramic heating flake is installed behind lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621101112.7U CN206095938U (en) | 2016-10-08 | 2016-10-08 | Double -light -path surface scattering high range turbidity instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621101112.7U CN206095938U (en) | 2016-10-08 | 2016-10-08 | Double -light -path surface scattering high range turbidity instrument |
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| Publication Number | Publication Date |
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| CN206095938U true CN206095938U (en) | 2017-04-12 |
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| CN201621101112.7U Active CN206095938U (en) | 2016-10-08 | 2016-10-08 | Double -light -path surface scattering high range turbidity instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290259A (en) * | 2016-10-08 | 2017-01-04 | 苏州奥特福环境科技有限公司 | A kind of double light path surface scattering high range transmissometer |
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2016
- 2016-10-08 CN CN201621101112.7U patent/CN206095938U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290259A (en) * | 2016-10-08 | 2017-01-04 | 苏州奥特福环境科技有限公司 | A kind of double light path surface scattering high range transmissometer |
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