CN201014976Y - Infrared source signal generation testing apparatus - Google Patents
Infrared source signal generation testing apparatus Download PDFInfo
- Publication number
- CN201014976Y CN201014976Y CNU2007200339124U CN200720033912U CN201014976Y CN 201014976 Y CN201014976 Y CN 201014976Y CN U2007200339124 U CNU2007200339124 U CN U2007200339124U CN 200720033912 U CN200720033912 U CN 200720033912U CN 201014976 Y CN201014976 Y CN 201014976Y
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- CN
- China
- Prior art keywords
- electric furnace
- heating wire
- furnace heating
- signal generation
- infrared 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.)
- Expired - Fee Related
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses an infrared light supply signal generating detector. The heating element used by the signal generating part of the detector is an electric furnace heating wire which is wrapped with a pottery clay layer. One end of the electric furnace heating wire is provided with an optical lens, and the other end is equipped with a reflecting mirror. Besides, the supply voltage for the electric furnace heating wire is a high-stability direct-current low voltage. The utility model is applicable to an instrument used to test the oil content in water with the non-dispersive infrared method in laboratories. With the highly stable strength of pyroelectrical signals, the utility model directly improves the effect of measuring the oil content in the water sample effectively.
Description
Technical field
The utility model relates to a kind of infrared light supply signal generation pick-up unit that is used in the oily instrument of laboratory employing undispersed infrared method mensuration water.
Background technology
In daily production or life, the contamination accident of destroying environment happens occasionally, and especially the pollution of drinking water body environment is directly affected the healthy of people.Wherein, estimate the water body environment mg/L value whether contaminated a kind of important indicator is exactly a mineral oil in water, the mg/L value of measuring mineral oil in water has many kinds of methods, and it is exactly one of laboratory method relatively more commonly used that undispersed infrared method is measured mineral oil in water.Its principle is to utilize the methyl of petroleum substance (CH3), (characteristic absorption of (3.4 μ m) CH2-) in the near-infrared region is as the basis of measuring oil content in the water sample for methylene.And one of subject matter that utilization undispersed infrared method mensuration mineral oil in water will solve is the stability of infrared light supply signal.
At present, infrared light supply signal generation pick-up unit commonly used is mainly divided by signal generation and the test section constitutes, at the signal generation branch, because heater element--electric furnace heating wire is constantly producing microdeformation in the heating process, time has been grown also can oxidation and rusting, and the intensity that causes heat to release infrared signal changes, and electric furnace heating wire powers on to press and fluctuation takes place sometimes changes in addition, aggravate heat and released the instability of infrared signal intensity, thereby directly influenced the mensuration effect of oil content in the water sample.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art part, and the effective infrared light supply signal generation pick-up unit of oil content mensuration in a kind of infrared signal intensity stabilization, the water sample is provided.
The technical solution of the utility model is: infrared light supply signal generation pick-up unit, comprise that signal generation divides and the test section, described signal generation is arranged with pedestal, the pedestal inner chamber is provided with the spiral fashion electric furnace heating wire, electric furnace heating wire is provided with optical lens towards an end of test section, improvements be described electric furnace heating wire around be provided with the potter's clay clad, the two ends of electric furnace heating wire are provided with the optical lens except an end, the other end is provided with catoptron, described catoptron, electric furnace heating wire, the center line of optical lens is same axis, and with the center line of described test section on same straight line.
Described catoptron is fixed on the lumen port place of pedestal, and there is gland in its outside; The two ends of described electric furnace heating wire link to each other with the high stability Dc low voltage power supply.
Adopt technique scheme, owing to use the potter's clay package curing around electric furnace heating wire, make electric furnace heating wire in the process of constantly heating, can not produce microdeformation, long-term use also not can oxidation and rusting, and this has just guaranteed the hot stability of releasing the infrared light supply signal.Simultaneously, increased catoptron at the end relative with optical lens of electric furnace heating wire, and the center line of catoptron, electric furnace heating wire, optical lens is same axis, reverberation is released infrared signal to greatest extent, the intensity of enhancing signal and stability.In addition, electric furnace heating wire two ends institute making alive is the high stability dc low-voltage, avoids voltage fluctuation, further improves the stability of infrared signal.Solve the stability problem of infrared light supply signal, just can directly improve the mensuration effect of oil content in the water sample effectively.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
Referring to accompanying drawing, the utility model is mainly divided by signal generation and the test section is formed, signal generation is arranged with pedestal 1, the pedestal inner chamber is provided with spiral fashion electric furnace heating wire 11, around the electric furnace heating wire potter's clay clad 10 is arranged, electric furnace heating wire one end has optical lens 2, and the other end has catoptron 13, catoptron is fixed on the pedestal lumen port, and there is gland 12 in the outside.Catoptron, electric furnace heating wire, optical lens coaxial cable, and with the test section center line on same straight line, this straight line becomes 20 ° of inclination angles with surface level.The course of work is: water sample enters sample cell 3 inner chambers from import mouth 7, until overflowing from overflow vent 4, and intact side by side bubble; Electric furnace heating wire generates heat under the effect of high stability Dc low voltage power supply, sending infrared light penetrates from optical lens after mirror reflects is strengthened, cut mating plate 8 rotation under motor 9 drives, infrared light is treated to infrared square-wave signal, this signal penetrates sample after 3.4 μ m optical filters 5 absorb, by the size of infrared signal detecting device 6 its signal intensities of detection, handle through special-purpose amplifier circuit again, can calibrate the mg/l value of oil content in the water sample.
Claims (3)
1. infrared light supply signal generation pick-up unit, comprise that signal generation divides and the test section, described signal generation is arranged with pedestal, the pedestal inner chamber is provided with the spiral fashion electric furnace heating wire, electric furnace heating wire is provided with optical lens towards an end of test section, it is characterized in that described electric furnace heating wire around be provided with the potter's clay clad, the two ends of electric furnace heating wire are provided with the optical lens except an end, the other end is provided with catoptron, the center line of described catoptron, electric furnace heating wire, optical lens is same axis, and with the center line of described test section on same straight line.
2. by the described infrared light supply signal of claim 1 generation pick-up unit, it is characterized in that described catoptron is fixed on the lumen port place of pedestal, there is gland in its outside.
3. by the described infrared light supply signal of claim 1 generation pick-up unit, it is characterized in that the two ends of described electric furnace heating wire link to each other with the high stability Dc low voltage power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200339124U CN201014976Y (en) | 2007-01-29 | 2007-01-29 | Infrared source signal generation testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200339124U CN201014976Y (en) | 2007-01-29 | 2007-01-29 | Infrared source signal generation testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201014976Y true CN201014976Y (en) | 2008-01-30 |
Family
ID=39026776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200339124U Expired - Fee Related CN201014976Y (en) | 2007-01-29 | 2007-01-29 | Infrared source signal generation testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201014976Y (en) |
-
2007
- 2007-01-29 CN CNU2007200339124U patent/CN201014976Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20140129 |