CN2215116Y - Infra-red spectral oil detector - Google Patents
Infra-red spectral oil detector Download PDFInfo
- Publication number
- CN2215116Y CN2215116Y CN 94219446 CN94219446U CN2215116Y CN 2215116 Y CN2215116 Y CN 2215116Y CN 94219446 CN94219446 CN 94219446 CN 94219446 U CN94219446 U CN 94219446U CN 2215116 Y CN2215116 Y CN 2215116Y
- Authority
- CN
- China
- Prior art keywords
- infrared
- oil detector
- utility
- model
- tungsten lamp
- 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.)
- Expired - Fee Related
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses an infrared spectral oil detector which applies the absorbing principle of infrared spectrum, comprising a halogen tungsten lamp, a monochromator, a color comparison pool, a pulse modulated circuit, a signal reception treater, a microcomputer processing system, etc. The tungsten halogen lamp is used as an infrared source through the pulse circuit for modulating a pulse light source. The noise ratio of a micro electric signal is raised and the stability and the service life of the infrared spectral oil detector are enhanced. A microcomputer treater with more than 286 models is matched for visually displaying or printing for measured data and curves. The utility model is a special instrument for assaying substance of oil class in water body and has the automotive advantages of high sensitivity, data collection, statistical calculation, data storage, etc.
Description
The utility model relates to water body PetroChina Company Limited. class substance-measuring instrument, particularly infrared spectrometric oil detector, belongs to the optical spectrum analyser field.
At present, the detection of water body PetroChina Company Limited. material mainly adopts infrared spectrophotometer to measure, not only cost an arm and a leg, and concerning measuring petroleum-type, function and performance are also not ideal enough, and it is low to exist sensitivity, statistical computation is complexity as a result, instrument serviceable life is short, and shortcomings such as poor stability have a strong impact on the carrying out of environment monitoring work.
The purpose of this utility model is to provide a kind of water body PetroChina Company Limited. class substance-measuring instrumentation--infrared spectrometric oil detector, and it is low to overcome existing determining instrument sensitivity, calculation of complex and cost an arm and a leg and wait deficiency.
For finishing above-mentioned purpose, the utility model is used the infrared spectrum principle of absorption, in the enterprising line scanning of the wave band of oil substance, measure the infrared absorption spectrum of petroleum substance, with halogen tungsten lamp infrared light supply, monochromator, colorimetric pool, pulse modulated circuit, signal receiving processor, and microprocessor system be one-piece construction, adopt pulse modulated circuit to make the form irradiation sample of light source, data and the curve negotiating A/d card that records directly is presented on the display of microprocessor system with light pulse.
Owing to do infrared light supply with halogen tungsten lamp, by pulsing circuit modulating pulse light source, improved the signal to noise ratio (S/N ratio) of little electric signal, stability of the present utility model and serviceable life have been strengthened, make the processor of oil content analyzer of 286 above microcomputers, data and curve demonstration directly perceived or printing with recording have improved automaticity of the present utility model.
Fig. 1 is the utility model structure principle chart;
Fig. 2 is the utility model shape assumption diagram;
This utility model optical schematic diagram of Fig. 3;
Fig. 4 is the utility model pulse modulated circuit figure.
Further narrate the utility model below in conjunction with accompanying drawing, it is by infrared light sources 1, monochromator 2, colorimetric pool 3, pulse modulated circuit 6, compositions such as signal receiving processor 4 and microsystem 5.The light of light source 1 gathers into entrance slit 15 through concave mirror 14, arrive paralleloscope 17 through plane mirror 16 again, return paralleloscope 17 through exit slit 8 irradiation colorimetric pools 3 through grating 7 chromatic dispersion back reflections, infrared ray enters the condenser mouth through behind the colorimetric pool 3, to optical filter 13, shine then on the pyroelectricity 11 and be transformed into electric signal, received signal processor 4 is connected with microsystem 5 by the A/D card.Pulse modulated circuit 6 in the utility model is by operational amplifier BF, resistance R
1, R
2, R
3, capacitor C
1, composition such as integrated circuit (IC) triode BG, wherein: R
2Between the A end and C end for positive feedback resistor connection and BF, R
1Connect the A end other end ground connection of BF, R
3The B end of cross-over connection BF and C end, capacitor C
1Connect between the B end and ground connection of BF, the pin 2 of integrated circuit (IC) connects the base stage of BG respectively, pin 1 and diode D
1Series connection, the C that meets BF holds, and pin 3 passes through D
2Connect halogen tungsten lamp 1, the output terminal C that establishes BF is positive saturated voltage Vc, and then the A end is Vc/2, and B holds by R
3To C
1Charge to＞Vc/2, because the B terminal voltage is higher than the A terminal voltage, BF produces upset, makes the C terminal voltage become negative saturated voltage-Vc, and then the A end is-Vc/2, and B holds by R
3To C
1Fill negative electricity to arrive＜-Vc/2, then BF produces upset again, circuit repeats then to produce continuous oscillation, by C end control IC integrated circuit 7,812 three end power supplys, promoting BG then produces big electric current and lights halogen tungsten lamp, form light pulse, tell the infrared monochromatic light of 3.2-3.6um and shine colorimetric pool when light pulse enters monochromator, light intensity through absorption of sample, hot basket electricity in the irradiation receiver is transformed into electronic signal, be input to microsystem through the A/D card, handle, data and the curve that records directly can be presented on the display by correspondent computer software.
The utility model is in implementation process, light source adopts the 12V30W halogen tungsten lamp, monochromator adopts grating autocollimatic formula dispersion system, colour comparator adopts the 4cm quartz colorimetric utensil, and signal Processing adopts microcomputer pulse collection technology, and microcomputer is with 286 or above type, join 5 cun highly dense drivers, internal memory 1MB, character reminding is adopted in operating process, and can connect printer and paint the garden instrument.
Claims (3)
1, a kind of infrared spectrometric oil detector, comprise infrared light supply (1), monochromator (2), colorimetric pool (3), received signal processor formations such as (4), it is characterized in that: described light source (1) is a halogen tungsten lamp, and pulse modulated circuit (6) is by operational amplifier BF, resistance R
1, R
2R
3, capacitor C
1, composition such as triode BG and integrated circuit (IC), wherein R
2Be connected between A, the C end of BF R for positive feedback resistor
1The A end of one termination BF, other end ground connection, R
3The B of cross-over connection BF, C end, capacitor C
1Connect the B end of BF, other end ground connection, the pin 2 of integrated circuit (IC) connects the base stage of BF, pin 1 and diode D
1Polyphone connects the C end of BF, pin 3 serial connection diode D
2Connect halogen tungsten lamp;
2, infrared spectrometric oil detector according to claim 1 is characterized in that received signal processor (4) is connected with microsystem (5);
3, infrared spectrometric oil detector according to claim 1 and 2 is characterized in that light source (1) adopts the 12V30W halogen tungsten lamp, and integrated circuit (IC) is 7812, and microsystem (5) adopts 286 above model computing machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94219446 CN2215116Y (en) | 1994-09-06 | 1994-09-06 | Infra-red spectral oil detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94219446 CN2215116Y (en) | 1994-09-06 | 1994-09-06 | Infra-red spectral oil detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2215116Y true CN2215116Y (en) | 1995-12-13 |
Family
ID=33834309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94219446 Expired - Fee Related CN2215116Y (en) | 1994-09-06 | 1994-09-06 | Infra-red spectral oil detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2215116Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616331A (en) * | 2013-11-29 | 2014-03-05 | 大连海事大学 | Device and method for detecting moisture content of lubricating oil |
-
1994
- 1994-09-06 CN CN 94219446 patent/CN2215116Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616331A (en) * | 2013-11-29 | 2014-03-05 | 大连海事大学 | Device and method for detecting moisture content of lubricating oil |
| CN103616331B (en) * | 2013-11-29 | 2016-07-06 | 大连海事大学 | A kind of water content of lubricating oil amount detecting device and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |