CN103105363A - Water quality detector with temperature isolation - Google Patents
Water quality detector with temperature isolation Download PDFInfo
- Publication number
- CN103105363A CN103105363A CN2012104386365A CN201210438636A CN103105363A CN 103105363 A CN103105363 A CN 103105363A CN 2012104386365 A CN2012104386365 A CN 2012104386365A CN 201210438636 A CN201210438636 A CN 201210438636A CN 103105363 A CN103105363 A CN 103105363A
- Authority
- CN
- China
- Prior art keywords
- light source
- optical fiber
- absorption cell
- water quality
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a water quality detector with temperature isolation. The water quality detector comprises a light source controller, a light source, an absorption cell, a photoelectric detector and a data acquisition device, and is characterized by also comprising a first optical fiber, wherein the light source controller controls luminous intensity of the light source; the light emitted by the light source is transmitted to the absorption cell through the first optical fiber; and after a water quality sample in the absorption cell is absorbed, excessive light rays are transmitted to the photoelectric detector for receiving and are converted into an electric signal, and the electric signal is input to the data acquisition device. The influence of temperature on the light source and the photoelectric detector can be reduced; the influence of backlight on the measurement is reduced; and moreover, the light source and the photoelectric detector are far away from the absorption cell, and the light source and the photoelectric detector are conveniently treated.
Description
Technical field
The present invention relates to a kind of water quality testing meter, especially a kind of water quality testing meter with temperature isolation.
Background technology
Material molecule absorbs or the architectural feature of the situation such as the wavelength of emission spectrum, intensity, polarization state and this material has intrinsic relation under different conditions.The molecular structure of different material is different, corresponding to different Absorption and emission spectras; The same material concentration is not simultaneously, and is different in the absorption intensity of same absorption peak position.Therefore, by detecting the degree of absorption of a certain material to special wavelength light in water, just can determine composition and the concentration of this material in water.At present, water quality testing meter generally comprises light source, sample cell, three parts of photoelectric detector, and the light that light source sends is received by photoelectric detector after water sample absorbs, and the intensity variation before and after absorbing according to water sample is carried out water quality detection.At present, light source generally adopts Halogen lamp LED, diode or laser instrument, and photodetector generally adopts less expensive photoelectric cell, and no matter be light source or photodetector, all is subject to a great extent the impact of temperature.And the impact of temperature can have a strong impact on accuracy of measurement and the stability of instrument.
Summary of the invention
The present invention seeks to: a kind of water quality testing meter with temperature isolation is provided, can reduces temperature to the impact of light source and photodetector, reduce the impact on measuring backlight, thus the accuracy that improves sample detection.
Technical scheme of the present invention is: a kind of water quality testing meter with temperature isolation, comprise light source controller, light source, absorption cell, photodetector and data acquisition unit, it is characterized in that, also comprise the first optical fiber, the luminous intensity of described light-source controller controls light source; The light that light source sends is through the absorption cell that is transferred to of the first optical fiber, and after the water sample in absorption cell absorbed, unnecessary light transmission received and convert to electric signal to photodetector, and this signal is input to data acquisition unit.
Further, also comprise the second optical fiber, described the second optical fiber is connected with photodetector, the light that light source sends is through the absorption cell that is transferred to of the first optical fiber, after water sample in absorption cell absorbs, unnecessary light receives and converts to electric signal to photodetector through the second Optical Fiber Transmission, this signal is input to data acquisition unit.
Further, the entrance of described the first optical fiber outlet, the second optical fiber and absorption cell are on the same straight line.
Due to this water quality testing meter between light source and absorption cell, added two sections good optical fiber of light transmission between absorption cell and photodetector, thereby make light source and photodetector away from heat larger, temperature is higher, temperature variation is than absorption cell more frequently, has reduced the impact of temperature on light source and photodetector.Enter because little of optical fiber clear aperature allows the part light of light source, also reduced backlight the entering of environment simultaneously, improved the accuracy of measuring.
Advantage of the present invention is:
1. reduce temperature to the impact of light source and photodetector.
Reduce the impact on measuring backlight.
Make light source and photodetector away from absorption cell, be convenient to light source and photodetector are processed.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is the water quality testing meter schematic diagram with temperature isolation of the present invention.
Fig. 2 is the water quality testing meter structural representation with temperature isolation of the present invention.
Wherein: 1 light source controller; 2 light sources; 3 optical fiber; 4 absorption cells; 5 optical fiber; 6 photodetectors; 7 data acquisition units.
Embodiment
Embodiment: the water quality testing meter with temperature isolation as shown in Figure 1 and Figure 2 comprises light source controller 1,, light source 2, optical fiber 3, absorption cell 4, optical fiber 5, photodetector 6, data acquisition unit 7.The output terminal of light source controller 1 connects light source 2, light source 2 output light transmit to optical fiber 3, light inputed to absorption cell 4 after advancing optical fiber 3 transmission, material in absorption cell 4 absorbs light, the rear remaining light of absorption is exported to optical fiber 5 through absorption cell 4 and is transmitted, residual ray advanced the transmission of optical fiber 5, arrive at last photodetector 6, photodetector 6 is converted to a signal with the light that receives and gives data acquisition unit 7, and the intensity variation before and after being absorbed according to water sample by data acquisition unit 7 detects water quality.The entrance of optical fiber 3 and light source over against, the outlet of optical fiber 5 and photodetector over against, the entrance of the outlet of optical fiber 3, optical fiber 5 and absorption cell are on the same straight line.Due to this water quality testing meter between light source and absorption cell, added two sections good optical fiber of light transmission between absorption cell and photodetector, thereby make light source and photodetector away from heat larger, temperature is higher, temperature variation is than absorption cell more frequently, has reduced the impact of temperature on light source and photodetector.Enter because little of optical fiber clear aperature allows the part light of light source, also reduced backlight the entering of environment simultaneously, improved the accuracy of measuring.
The above is only the embodiment of invention.Protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses, and the variation that can expect easily or replacement are within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (3)
1. the water quality testing meter with temperature isolation, comprise light source controller, light source, absorption cell, photodetector and data acquisition unit, it is characterized in that, also comprises the first optical fiber, the luminous intensity of described light-source controller controls light source; The light that light source sends is through the absorption cell that is transferred to of the first optical fiber, and after the water sample in absorption cell absorbed, unnecessary light transmission received and convert to electric signal to photodetector, and this signal is input to data acquisition unit.
2. the water quality testing meter with temperature isolation according to claim 1, it is characterized in that, also comprise the second optical fiber, described the second optical fiber is connected with photodetector, the light that light source sends is through the absorption cell that is transferred to of the first optical fiber, after water sample in absorption cell absorbed, unnecessary light received and converts to electric signal to photodetector through the second Optical Fiber Transmission, and this signal is input to data acquisition unit.
3. the water quality testing meter with temperature isolation according to claim 2, is characterized in that, the entrance of described the first optical fiber outlet, the second optical fiber and absorption cell are on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104386365A CN103105363A (en) | 2012-11-06 | 2012-11-06 | Water quality detector with temperature isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104386365A CN103105363A (en) | 2012-11-06 | 2012-11-06 | Water quality detector with temperature isolation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103105363A true CN103105363A (en) | 2013-05-15 |
Family
ID=48313378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104386365A Pending CN103105363A (en) | 2012-11-06 | 2012-11-06 | Water quality detector with temperature isolation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103105363A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111227A (en) * | 2013-06-21 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Detection apparatus and detection method for water quality in inner container of electric water heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432747A (en) * | 1990-05-30 | 1992-02-04 | Ngk Spark Plug Co Ltd | Concentration measuring instrument |
| JPH0915144A (en) * | 1995-07-03 | 1997-01-17 | Toa Denpa Kogyo Kk | Absorptiometer and temperature compensation method for the same |
| CN2344773Y (en) * | 1998-12-04 | 1999-10-20 | 北京环科环保技术公司 | On-line chemical oxygen demand analyser |
| CN102042965B (en) * | 2010-11-18 | 2012-07-11 | 上海衡伟信息技术有限公司 | On-line broad-spectrum water quality analyzer |
| CN202928943U (en) * | 2012-11-06 | 2013-05-08 | 苏州聚阳环保科技有限公司 | Water quality detector with temperature isolation |
-
2012
- 2012-11-06 CN CN2012104386365A patent/CN103105363A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432747A (en) * | 1990-05-30 | 1992-02-04 | Ngk Spark Plug Co Ltd | Concentration measuring instrument |
| JPH0915144A (en) * | 1995-07-03 | 1997-01-17 | Toa Denpa Kogyo Kk | Absorptiometer and temperature compensation method for the same |
| CN2344773Y (en) * | 1998-12-04 | 1999-10-20 | 北京环科环保技术公司 | On-line chemical oxygen demand analyser |
| CN102042965B (en) * | 2010-11-18 | 2012-07-11 | 上海衡伟信息技术有限公司 | On-line broad-spectrum water quality analyzer |
| CN202928943U (en) * | 2012-11-06 | 2013-05-08 | 苏州聚阳环保科技有限公司 | Water quality detector with temperature isolation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111227A (en) * | 2013-06-21 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Detection apparatus and detection method for water quality in inner container of electric water heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102967580B (en) | VCSEL (vertical cavity surface emitting laser)-based low-power-consumption gas detection method and device | |
| BRPI0515899A (en) | free space optical communication system and process for high speed broadband data transmission | |
| RU2010152703A (en) | DEVICE AND METHOD FOR IDENTIFICATION OF PLAID IN THE ORAL CAVITY | |
| RU157463U1 (en) | TRACK GAS ANALYZER | |
| CN208444026U (en) | A kind of line is to penetrating laser sensor | |
| CN205300800U (en) | Fluorescence optical fiber temperature sensing demodulalation system | |
| CN203385656U (en) | Water quality monitoring device based on photoelectric colorimetry | |
| CN203455275U (en) | Near-infrared optical fiber type moisture measuring device | |
| CN202547904U (en) | Device for detecting light distribution of automobile LED headlamp | |
| CN202928943U (en) | Water quality detector with temperature isolation | |
| KR20120062600A (en) | System for measuring arc and arc delivering device included in the same | |
| CN104122231A (en) | On-line self-calibration water quality turbidity detection system | |
| CN202351172U (en) | Laser water quality detector | |
| CN103105363A (en) | Water quality detector with temperature isolation | |
| CN104296973A (en) | Light distribution detecting device for automotive LED headlamp | |
| CN102589483A (en) | Method and device for sensing angular displacement of reflective differential intensity modulating optical fiber | |
| KR20130014315A (en) | Photoelectronic sensor | |
| CN104406941A (en) | Multifunctional food safety comprehensive detector | |
| CN201285325Y (en) | Wireless measurement apparatus for ultraviolet light strength detection | |
| CN104458651A (en) | Distributed humidity sensing system and control method thereof | |
| CN205027755U (en) | Multi -functional determine module box on immunoassay appearance | |
| CN101694526A (en) | Reflection type optical fiber nuclear radiation sensor | |
| CN102435317B (en) | Optical color sensing system and optical color sensing device using same | |
| CN203870023U (en) | Fiber optic spectrometer containing blank solution | |
| KR101468371B1 (en) | Arc measurement device with dual detection path and that method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |