CN2132985Y - Portable put-in turbidimeter - Google Patents
Portable put-in turbidimeter Download PDFInfo
- Publication number
- CN2132985Y CN2132985Y CN 92229003 CN92229003U CN2132985Y CN 2132985 Y CN2132985 Y CN 2132985Y CN 92229003 CN92229003 CN 92229003 CN 92229003 U CN92229003 U CN 92229003U CN 2132985 Y CN2132985 Y CN 2132985Y
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- probe
- light source
- urceolus
- light
- photelectric receiver
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Abstract
The utility model belongs to an improvement for a turbidity measuring instrument among measuring instruments for physical characteristics, comprising a probe and a main machine. The main machine comprises an amplification circuit, a demodulation circuit, a range control circuit, a displayer, a modulation source, a stabilized voltage supply, etc. The probe comprises an outer barrel, an upper cover and a lower cover. The outer barrel is provided with a side hole and a rotating lightproof door, and the upper and lower cover are provided with a water inlet and outlet hole and a lightproof plate. A light source and a photoelectric receiver are arranged in the outer barrel, and the probe is connected with the main machine through a cable.
Description
The utility model belongs to the improvement of turbidimetry instrument in the physical characteristics analytical instrument.
Before the utility model, the nephelometer of various countries, as the SU/239557 patent of bulletin in " Soviet Union's Gazette of Patent for Invention " on June 23rd, 86, the JP57-211529 patent of " Japan's special permission communique " bulletin on May 30th, 82 all has a common shortcoming, the duplicate measurements precision is relatively poor, unit range narrow (wide-range only is 0～5500PPM, and zeyssatite is demarcated) uses and calibrates more complicated, and various nephelometers all are desk-top, are unfavorable for that the field uses on the spot.
Inventor's purpose, improve existing nephelometer exactly, invent and a kind ofly can be carried to the nephelometer that field survey is removed to carry out in the field easily, on this basis, it is high that its duplicate measurements precision is wanted, the unit range is wide, can adapt to the needs of multiple test specimens, and calibration is easy as far as possible in use.
In order to realize the foregoing invention purpose, the inventor at first is designed to two independent parts to nephelometer: host machine part ［ 1 ］ and probe segment ［ 2 ］, connect with cable ［ 3 ］ between these two parts, and the mode of connection is plug-in type preferably.After the design, make nephelometer carry out directly throw-in type measurement to tested sample like this, both can save sample water box, improve the duplicate measurements precision, field measurement is easy to carry again.
The design proposal of host machine part ［ 1 ］ can have multiple, and it mainly acts on and the signal that probe segment ［ 2 ］ detects is amplified and shows, and provides power supply to probe segment ［ 2 ］.A kind of host machine part of design proposal ［ 1 ］ comprises amplifier ［ 4 ］, demodulator circuit ［ 5 ］, range control circuit ［ 6 ］, display ［ 7 ］, modulation source ［ 8 ］, ac-dc power supply ［ 9 ］ etc. preferably.Wherein each parts and circuit all can adopt known technology, and its design main points only are the combination of these circuit and device.(as Fig. 1).
The design of probe segment ［ 2 ］ is one of key of the present invention.It can have multiple design proposal, the following describes wherein scheme preferably.
It by probe urceolus ［ 10 ］, loam cake ［ 12 ］, lower cover ［ 13 ］, be contained in light source ［ 15 ］ in probe urceolus ［ 10 ］ and photelectric receiver ［ 16 ］ etc. and form, appearance at probe urceolus ［ 10 ］, have side opening ［ 18 ］, be convenient to clean light source ［ 15 ］ and photelectric receiver ［ 16 ］; Locate at side opening ［ 18 ］, rotation light excluding shutter ［ 14 ］ is housed, effect is to close side opening ［ 18 ］ when measuring; Have paddle hole ［ 11 ］ on loam cake ［ 12 ］ and the lower cover ［ 13 ］; Shadow shield ［ 17 ］ also is equipped with in the inboard of loam cake ［ 12 ］ and lower cover ［ 13 ］, and its effect is to block the extraneous light of being injected by paddle hole ［ 11 ］.Should note the water resistance of light source ［ 15 ］ and photelectric receiver ［ 16 ］ during making.The principle of such probe when measuring is: probe is directly dropped into detected sample water, sample water enters in the probe from paddle hole ［ 11 ］, the light that light source ［ 15 ］ sends is transmitted into photelectric receiver ［ 16 ］ through sample water, photelectric receiver ［ 16 ］ changes the light signal of receiving into electric signal sends into host machine part by cable ［ 3 ］, shows after amplifying.Owing to the ability difference of the different sample water transmitted light of turbidity, therefore can measure the turbidity of sample water according to the transmission light intensity.
When pressing such scheme making probe segment, can there be dual mode the installation site of design light source ［ 15 ］ and photelectric receiver ［ 16 ］:
Mode one: light source ［ 15 ］ is paralleled with the central axis of probe urceolus ［ 10 ］ with the light path line of photelectric receiver ［ 16 ］, at this moment, be preferably in two light hurdles ［ 19 ］ are installed between light source ［ 15 ］ and the photelectric receiver, receive only the transmitted light that light source ［ 15 ］ sends to guarantee photelectric receiver ［ 16 ］.During installation, can all be contained in light source ［ 15 ］, photelectric receiver ［ 16 ］, light hurdle ［ 19 ］ on the component carrier ［ 20 ］ that is fixed on probe urceolus ［ 10 ］ inwall, respectively open a side opening ［ 18 ］ at probe urceolus ［ 10 ］ appearance place near light source ［ 15 ］ and photelectric receiver ［ 16 ］, locate respectively to adorn again a rotation light excluding shutter ［ 14 ］, (referring to Fig. 2) at these two side openings ［ 18 ］.Measure by the suitable low turbidity of probe (0～50PPM, zeyssatite is demarcated) that this mode is produced, light source ［ 15 ］ is controlled between 10～20cm to the distance between the photelectric receiver ［ 16 ］.
Mode two: make light source ［ 15 ］ perpendicular with the central axis of probe urceolus ［ 10 ］ with the light path line of photelectric receiver ［ 16 ］, at this moment, preferably light source ［ 15 ］ and photelectric receiver ［ 16 ］ all being contained in an element that is fixed in probe urceolus ［ 10 ］ inwall carries on the ring ［ 21 ］.Probe urceolus ［ 10 ］ appearance place near light source ［ 15 ］ and photelectric receiver ［ 16 ］ opens a side opening ［ 18 ］ and gets final product, and locates to adorn a rotation light excluding shutter ［ 14 ］ (referring to Fig. 7) at this side opening ［ 18 ］.Measure by the suitable high turbidity of probe (0～5000PPM and 0～30000PPM, zeyssatite is demarcated) that this mode is produced.Notice that light source ［ 15 ］ is controlled between 8～15mm to the distance between the photelectric receiver ［ 16 ］.
A portable throw-in type nephelometer can dispose the two or more probe of making of above-mentioned different modes simultaneously, measures total range to enlarge unit.When using different probes, the range control circuit ［ 6 ］ in the host machine part ［ 1 ］ should place the relevant position, and this is to realize that by the enlargement factor that changes circuit this belongs to known technology, does not give unnecessary details at this.
The design and fabrication of rotation light excluding shutter ［ 14 ］ is more special, it can be an annulus that has loading and unloading seams ［ 22 ］ and clean-out opening ［ 23 ］, its external diameter is identical with the external diameter of probe urceolus ［ 10 ］, make (referring to Fig. 5) with resilient black plastics (as ABS plastic) or metal (as copper material), be stuck in the ring groove ［ 24 ］ of probe urceolus ［ 10 ］ appearance, and can be around the central axis rotation of probe urceolus ［ 10 ］.Make clean-out opening ［ 23 ］ and side opening ［ 18 ］ when coinciding when rotating this rotation light excluding shutter ［ 14 ］, the cleaning in can popping one's head in; Make when closing side opening ［ 18 ］ fully when rotating rotation light excluding shutter ［ 14 ］, can measure.(referring to Fig. 4 and Fig. 6).
Also have some explanation about the circuit in the host machine part ［ 1 ］:
1. light source ［ 15 ］ can be visible light source or invisible light source (as infrared light supply), the preferably modulated light of the light that light source sends, have modulation source ［ 8 ］ and demodulator circuit ［ 5 ］ in the main frame this moment, and the benefit of doing like this is to prevent that zero wafts, and improves measurement stability.
2. display ［ 7 ］ can use numeral to show or analog quantity shows, the turbidity of detected sample water changes greatly when considering high turbidimetry, therefore, and to be shown as with analog quantity.
3. range control circuit ［ 6 ］ is mainly made height turbidity range switching usefulness, and segmentation is thinner measures with being convenient to if want, and also can adopt the segmentation expanded circuit, to satisfy the needs of wide-range turbidimetry.
4. the design philosophy of alternating current-direct current mu balanced circuit ［ 9 ］ is: during open-air the use with accumulator or dry cell power supply, after mu balanced circuit is handled to each circuit supply; When using alternating current, then earlier through rectification again after mu balanced circuit is handled to each circuit supply.The degree of stability of this mu balanced circuit should be below 0.02%.This all is common known technology.
Adopt the produced portable throw-in type nephelometer of above-mentioned technology to realize goal of the invention fully, it has following advantage:
1. because the structure that adopts probe segment ［ 2 ］ and host machine part ［ 1 ］ to be separated can directly drop into probe in the detected sample water during test, be easy to carry and carry out field measurement.
2. because position relative fixed between light source ［ 15 ］ in the probe segment ［ 2 ］ and the photelectric receiver ［ 16 ］, and save the annex of sample box and so on, eliminated positioning error, improved the duplicate measurements precision greatly.
3. owing to adopt the probe of different designs mode and adopt range control circuit ［ 6 ］, expanded the unit range greatly, generally can reach 0～50000PPM(zeyssatite and demarcate) or higher, and design also can depend on actual need.
4. because duplicate measurements precision height can be determined the standard air value with zero turbidity water calibration back earlier before field survey is set out, with standard air value replace zero turbidity water calibration when measuring then in the open air, make and use easily.
Above-mentioned four advantages and outstanding effect all are that other known technologies are incomparable before the utility model.
Now Figure of description is described:
Fig. 1 is the turbidimetric photovoltaic principals figure of whole portable throw-in type, link by cable ［ 3 ］ between probe segment ［ 2 ］ and the host machine part ［ 1 ］, mode of connection is a plug-in type, and being used to of making differently measures the probe of different turbidity scopes and can plug host machine part respectively.
In the host machine part ［ 1 ］, ［ 4 ］ be amplifier, ［ 5 ］ be demodulator circuit, ［ 6 ］ be the range control circuit, ［ 7 ］ display, ［ 8 ］ be modulation source (its light source power supply in probe segment ［ 2 ］), ［ 9 ］ are ac-dc power supply (it is each circuit supplies in host machine part ［ 1 ］).
Fig. 2 is the cut-open view by one of sonde configuration embodiment of mode one making, wherein ［ 10 ］ are the probe urceolus, its outside has two side openings ［ 18 ］, a rotation light excluding shutter ［ 14 ］ is equipped with at side opening ［ 18 ］ position, probe urceolus ［ 10 ］ two ends are loam cake ［ 12 ］ and lower cover ［ 13 ］, all have paddle hole ［ 11 ］ on it, shadow shield ［ 17 ］ all is equipped with in their inboards, and light source ［ 15 ］, photelectric receiver ［ 16 ］ He Guanglan ［ 19 ］ are housed on the component carrier ［ 20 ］.Component carrier ［ 20 ］ is screwed on probe urceolus ［ 10 ］, and ［ 3 ］ are cables.
Fig. 3 is the side view of one of loam cake ［ 12 ］ and lower cover ［ 13 ］ embodiment.Wherein paddle hole ［ 11 ］ can be split into several circular holes.
Fig. 4, Fig. 5 and Fig. 6 are part three dimensional map and the wiring layouts of one of embodiment of rotation light excluding shutter ［ 14 ］, rotate as can be seen among Fig. 5 and have loading and unloading seam ［ 22 ］ and clean-out opening ［ 23 ］ on the light excluding shutter ［ 14 ］, visible rotation light excluding shutter ［ 14 ］ can be around the rotation of probe urceolus central axis among Fig. 6, coincides or staggers sealing up to clean-out opening ［ 23 ］ and side opening ［ 18 ］.
Fig. 7 is the cut-open view by one of sonde configuration embodiment of mode two making, wherein ［ 10 ］ are the probe urceolus, its outside has a side opening ［ 18 ］, side opening ［ 18 ］ locates to be equipped with a rotation light excluding shutter ［ 14 ］, loam cake ［ 12 ］ and lower cover ［ 13 ］ are equipped with in probe urceolus ［ 10 ］ two ends, all have paddle hole ［ 11 ］ on it, shadow shield ［ 17 ］ all is equipped with in their inboards, and ［ 3 ］ are cables.
Embodiment is made in explanation now:
Whole portable throw-in type nephelometer is divided into two parts, and host machine part ［ 1 ］ and probe segment ［ 2 ］ connect with cable ［ 3 ］ between two parts.
Comprise amplifier ［ 4 ］ in the host machine part ［ 1 ］, demodulator circuit ［ 5 ］, range control circuit ［ 6 ］, display ［ 7 ］, modulation source ［ 8 ］, alternating current-direct current mu balanced circuit ［ 9 ］.Each circuit and known technology do not have substantial differences in this part, and its electric principle assumption diagram as shown in Figure 1.
Probe segment ［ 2 ］ comprises two probes, the structure of one of them probe as shown in Figure 2, it comprises that the internal diameter of a long 180mm who makes with the black plastics of ABS is the probe urceolus ［ 10 ］ of φ 50mm, loam cake ［ 12 ］ and lower cover ［ 13 ］ are housed respectively at two ends, loam cake ［ 12 ］ is connected with probe urceolus ［ 10 ］ by screw thread with lower cover ［ 13 ］, has the paddle hole ［ 11 ］ of 8 φ 6mm on loam cake ［ 12 ］ and the lower cover ［ 13 ］.The shadow shield ［ 17 ］ of a φ 50mm respectively is equipped with in its inboard.On probe urceolus ［ 10 ］ outer wall, have the oval side opening ［ 18 ］ that two major and minor axis are respectively 25mm, 15mm at the about 40mm of distance two ends place respectively,, a rotation light excluding shutter ［ 14 ］ of making of the black plastics of ABS is housed respectively in these two side opening positions.Fix a block element support plate ［ 20 ］ with screw in the probe urceolus ［ 10 ］, light source ［ 15 ］ and photelectric receiver ［ 16 ］ are housed on it, two light hurdles ［ 19 ］ also are housed therebetween.Light source ［ 15 ］ is parallel with the central axis of probe urceolus ［ 10 ］ with the light path line of photelectric receiver ［ 16 ］.This probe is connected with host machine part with cable ［ 3 ］, and connecting mode is the plugs and sockets formula.It is used to measure 0～50PPM turbidity.
The structure of another probe such as Fig. 7.It comprises that an internal diameter that is about 70mm made from the black plastics of ABS is the probe urceolus ［ 10 ］ of φ 50mm, by screw thread loam cake ［ 12 ］ and lower cover ［ 13 ］ are housed respectively at two ends, also have the paddle hole ［ 11 ］ of 8 φ 6mm on it, the shadow shield ［ 17 ］ of a φ 30mm respectively is equipped with in its inboard, on probe urceolus ［ 10 ］ outer wall approximately apart from the middle part at two ends, open the oval side opening ［ 18 ］ that a major and minor axis is respectively 25mm and 15mm, place at this side opening ［ 18 ］ place is adorned one with the black plastic rotation light excluding shutter ［ 14 ］ of ABS.Fix an element with screw in the probe urceolus ［ 10 ］ and carry ring ［ 21 ］, light source ［ 15 ］ and photelectric receiver ［ 16 ］ are housed on it, the light path line is perpendicular with the central axis of probe urceolus ［ 10 ］ between them, and its spacing is from being 12mm.This probe also uses cable ［ 3 ］ to connect with host machine part ［ 1 ］, and connecting mode is the plugs and sockets formula.It can be used for measuring 0～5000PPM, the turbidity of 0～30000PPM.
Claims (5)
1, a kind of portable throw-in type nephelometer is characterized in that being made up of the host machine part [1] and the probe segment [2] that separate, connects with cable [3] between host machine part [1] and the probe segment [2].
2, the said portable throw-in type nephelometer of claim 1 is characterized in that said host machine part ［ 1 ］ is combined by amplifier ［ 4 ］, demodulator circuit ［ 5 ］, range control circuit ［ 6 ］, display ［ 7 ］, modulation source ［ 8 ］, ac-dc power supply ［ 9 ］.
3, claim 1,2 said portable throw-in type nephelometers, it is characterized in that said probe segment ［ 2 ］ by appearance have side opening ［ 18 ］ and side opening ［ 18 ］ locate to be equipped with rotation light excluding shutter ［ 14 ］ probe urceolus ［ 10 ］, the loam cake ［ 12 ］ that has paddle hole ［ 11 ］ and lower cover ［ 13 ］, be contained in light source ［ 15 ］ and photelectric receiver ［ 16 ］ in the probe urceolus ［ 10 ］, the shadow shield ［ 17 ］ that is contained in loam cake ［ 12 ］ and lower cover ［ 13 ］ inboard forms.
4, the said portable throw-in type nephelometer of claim 3, it is characterized in that the light path sideline between light source ［ 15 ］ and the photelectric receiver ［ 16 ］ parallels with the central axis of probe urceolus ［ 10 ］, between light source ［ 15 ］ and photelectric receiver ［ 16 ］, light hurdle ［ 19 ］ is housed, light source ［ 15 ］, photelectric receiver ［ 16 ］ He Guanglan ［ 19 ］ are contained on the component carrier ［ 20 ］ that is fixed in the probe urceolus ［ 10 ］, and the side opening ［ 18 ］ and the rotation light excluding shutter ［ 14 ］ of probe urceolus ［ 10 ］ appearance respectively have two.
5, the said portable throw-in type nephelometer of claim 3, it is characterized in that the light path line between light source ［ 15 ］ and the photelectric receiver ［ 16 ］ is perpendicular with the central axis of probe urceolus ［ 10 ］, light source ［ 15 ］ and photelectric receiver ［ 16 ］ all are contained in an element that is fixed in the probe urceolus ［ 10 ］ and carry on the ring ［ 21 ］, and the side opening ［ 18 ］ and the rotation light excluding shutter ［ 14 ］ of probe urceolus ［ 10 ］ appearance respectively have only one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92229003 CN2132985Y (en) | 1992-07-24 | 1992-07-24 | Portable put-in turbidimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92229003 CN2132985Y (en) | 1992-07-24 | 1992-07-24 | Portable put-in turbidimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2132985Y true CN2132985Y (en) | 1993-05-12 |
Family
ID=33772507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92229003 Expired - Fee Related CN2132985Y (en) | 1992-07-24 | 1992-07-24 | Portable put-in turbidimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2132985Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235975A (en) * | 2010-05-06 | 2011-11-09 | 中天建设集团有限公司 | Liquid turbidity detection device |
| CN104075997A (en) * | 2014-07-10 | 2014-10-01 | 北京林业大学 | Continuous monitoring method and device for turbidity of water body |
-
1992
- 1992-07-24 CN CN 92229003 patent/CN2132985Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235975A (en) * | 2010-05-06 | 2011-11-09 | 中天建设集团有限公司 | Liquid turbidity detection device |
| CN102235975B (en) * | 2010-05-06 | 2013-02-27 | 中天建设集团有限公司 | Liquid turbidity detection device |
| CN104075997A (en) * | 2014-07-10 | 2014-10-01 | 北京林业大学 | Continuous monitoring method and device for turbidity of water body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |