CN205538679U - High sensitivity oscillating field optical wave conduction sensilla - Google Patents
High sensitivity oscillating field optical wave conduction sensilla Download PDFInfo
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- CN205538679U CN205538679U CN201620065201.4U CN201620065201U CN205538679U CN 205538679 U CN205538679 U CN 205538679U CN 201620065201 U CN201620065201 U CN 201620065201U CN 205538679 U CN205538679 U CN 205538679U
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Abstract
The utility model discloses a high sensitivity oscillating field optical wave conduction sensilla. Include incident layer, substrate layer and locate guided wave layer between incident layer and the substrate layer, incident layer and substrate layer are respectively including attaching to corresponding incident glass and your metallic film on the substrate glass, characterized by the guided wave layer includes a cavity, the cavity includes to be located the body is enclosed to a rigidity between incident layer and substrate layer or its your metallic film. This high sensitivity oscillating field optical wave conduction sensilla simple structure, science, equitable need not to carry on the regulation of the depth of parallelism, and ten fens simple, convenience of detect operation can select to detect the higher order mode, and detectivity is high, the precision is high, and stability is high, and the detection range is wide, and the suitability is strong.
Description
Technical field
The utility model relates to a kind of detecting instrument.A kind of high sensitivity oscillating field optical waveguide sensor particularly for the detecting instrument that gas or fluid sample detect.
Background technology
nullGenerally the cavity of the ducting layer of oscillating field oscillating Wave Sensors of Optical Waveguide is all by two optical glass up and down being provided with corresponding metallic diaphragm、With the body all around being located between two optical glass is formed，Existing oscillating Wave Sensors of Optical Waveguide its constitute ducting layer cavity containment body without exception be all to use one block of common rubber or plastic base plate to constitute，Due to in the detection technique of light wave induced oscillation field，The degree of being parallel to each other of its two metallic film i.e. regulates the depth of parallelism of the ducting layer sensitivity to detection in sensor、Reliability、Simple and convenience has the impact of extremely critical property，Sample cavity (i.e. ducting layer) is formed by arranging a cushion block between its two parts of metal films of existing oscillating Wave Sensors of Optical Waveguide，This sample cavity structure must arrange a special parallelism adjusting device by being manually adjusted，The work of this leveling degree is an extremely difficult thing in practice，Its depth of parallelism is difficult to meet testing requirement.Its concrete regulation process is: first, the 650nm visible red using collimation good incides prism bases from a waist of couple prism after TE polaroid, when the depth of parallelism of two metallic films is poor, incident illumination can't form guided mode, but form flare through multiple reflections, referred to as trail hot spot.At this moment, need to be moved three adjusting knobs of flat board by carefully regulation multidimensional fine setting optical bracket, first the center of circle of this optical crosstalk speckle being adjusted in the same horizontal line, the plane of incidence of this meaning sensor has kept the plane of incidence of vertical state, i.e. sensor the most vertical with glancing incidence laser.But these three adjusting knobs moving flat board by carefully regulation multidimensional fine setting optical bracket are long-standing processes that repeatedly regulates, and need to take a long time and energy.The such as publication number of Shanghai Communications University's application is respectively CN1645040A, the patent application of the planar light waveguide measuring apparatus of entitled micrometric displacement, and notification number is CN100401041C, entitled light waveguide absorption type gas sensor and the system of measurement, it is necessary for setting and includes support, back-moving spring, many parts such as multiple fialar micrometers are constituted, it is specifically designed to the tune depth of parallelism device of regulation prism bases and the depth of parallelism of optical glass sheet, it not only simply brings the complexity in structure to sensor and detection device, the more important thing is that the regulation of its depth of parallelism is difficult to meet requirement, need to spend substantial amounts of energy and time.
Utility model content
The purpose of this utility model is the deficiency existed for above-mentioned prior art, it is provided that a kind of high sensitivity oscillating field optical waveguide sensor.This high sensitivity oscillating field optical waveguide sensor simple in construction, science, rationally, it is not necessary to carrying out the regulation of the depth of parallelism, detection operation is very simple, convenient, can select to detect high-order mode, detection sensitivity is high, precision is high, and stability is high, detection range width, the suitability is strong.
The technical scheme of high sensitivity oscillating field optical waveguide sensor of the present utility model includes incident layer, substrate layer and is located at the ducting layer between described incident layer and substrate layer, described incident layer and substrate layer include the noble metal film being attached on corresponding incident glass and substrate glass respectively, it is characterized in that described ducting layer includes that a cavity, described cavity include the rigidity containment body being located between described incident layer and substrate layer or its noble metal film.
The opposite end end face of described rigidity containment body is parallel to each other.
Described rigidity containment body is the glass plate that its wooden partition is provided with corresponding cavity, and the relative two plate faces of this glass plate are parallel to each other (utility model delete answer one add when leading to), and the respective side walls of the cavity of this glass plate offers the import and export of cavity.
Described rigidity containment body is cut into two halves part by a glass plate being provided with cavity in the middle of it and constitutes, and the relative two plate faces of this glass plate are parallel to each other, the space that the two halves part of the glass plate being provided with cavity in the middle of this is spaced form the import and export of cavity.
Described noble metal film is respectively arranged at the external table wall by cavity of its incident glass and substrate glass.
Described substrate glass is optical glass sheet, and described incident glass is prism or optical glass sheet.
Described noble metal film is gold or Ag films.
Described rigidity containment body is made up of optical flat.
High sensitivity oscillating field optical waveguide sensor of the present utility model do not have any regulation depth of parallelism device or other stand or movable member, structure is extremely simple, and its accuracy of detection is high, its sensitivity at least than traditional high 2 orders of magnitude of spr sensor more than.This sensor has outside the plurality of advantages such as highly sensitive, cavity easily rinses, repeatedly use, and also can realize on-line checking simply and easily, stable performance and the advantage such as cheap.Particularly it is easier to develop into a kind of miniaturization, portable low price detection analyser.At present, the vast rural area of China commonly uses well water and subsoil water, and this instrument can play an important role in township, village's measuring station, even farmers' family's water, has wide market prospect.Believe that the exploitation of this new instrument detection not only to our province drinking water plays a significant role, and extremely important impact will be produced in fields such as the environmental conservation of China and food safetys.
Accompanying drawing explanation
Fig. 1 is this utility model high sensitivity oscillating field optical waveguide sensor one embodiment theory structure schematic diagram；Fig. 2 is the high sensitivity oscillating field optical waveguide sensor perspective view of Fig. 1 embodiment；Fig. 3 is another example structure schematic diagram of this utility model.
Detailed description of the invention
Now by embodiment and combine accompanying drawing the utility model is described in further detail.Rigidity containment body that the cavity 4 of this utility model high sensitivity oscillating field its ducting layer of optical waveguide sensor makes of rigid material (material that the most incompressible or hardness is relatively large) and formed, and, the end face of opposite end up and down making this rigidity containment body is parallel to each other, the i.e. cavity of its ducting layer uses rigidity containment body that rigid material makes, that its opposite end end face is parallel to each other to constitute, and makes incident layer and substrate layer (or being attached respectively to the noble metal film layer on its corresponding wall) be parallel to each other with the opposite end end face of this rigidity containment body.Further, the precious metal film layer of incident layer and substrate layer is deposited respectively (attachment) on the surface wall of the outside of the cavity inner chamber by ducting layer.This rigidity containment body can be made up of optical flat, the simple glass plate that also or had the highest flatness and/or relative two wooden partition faces to be parallel to each other by its relative two wooden partition masks.
Its concrete structure is as shown in Figure 1, the present embodiment high sensitivity oscillating field optical waveguide sensor incident layer, substrate layer and the ducting layer being located between incident layer and substrate layer, incident layer and substrate layer include being attached to the gold on upper strata beam incident optical sheet glass 1a and underlying substrate optical glass sheet 1b or Ag films 2 respectively, its ducting layer includes a cavity 4, and cavity 4 is made up of a rigidity containment body being connected between incident layer and substrate layer (i.e. beam incident optical sheet glass 1a and substrate optical glass sheet 1b).Its rigidity containment body is made up of the glass plate 3 being drilled with corresponding through hole in the middle of its plate face, the cavity 4 of ducting layer it is made up of this through hole, two pod apertures 5 it are drilled with on the opposite sides sidewall of the cavity of glass plate 3, being constituted the detected gas of cavity 4 or the import and export of fluid sample by this two pod apertures, the upper face wall 3a and lower face wall 3b of this glass plate 3 are parallel to each other.
Described noble metal film of the present utility model is respectively arranged at the external table wall by cavity of its incident glass and substrate glass.In this example, gold or the Ag films of its incident layer are arranged at the upper wall surface of (being attached to) beam incident optical sheet glass 1a, and gold or the Ag films of substrate layer is arranged at the lower wall surface of (being attached to) substrate optical glass sheet 1b.It can be prevented effectively from measured matter and produce gold or Ag films corrosion function and have a strong impact on its detection sensitivity and precision.
Glass plate 3 passes through the upper wall surface of the lower wall surface of its upper face wall 3a beam incident optical sheet glass 1a with incident layer corresponding with lower face wall 3b and the substrate optical glass sheet 1b of substrate layer respectively and is connected.Glass plate 3 is i.e. formed after being connected with beam incident optical sheet glass 1a and substrate optical glass sheet 1b and is parallel to each other.
During work, it is passed through tested gas or liquid substance from a pod apertures of glass plate, the light that the excitation light source device of corresponding detecting instrument sends is irradiated in gold or the Ag films of beam incident optical sheet glass, this high sensitivity oscillating field optical waveguide sensor will be acted on by excitation source, the optical signal detection of recycling detecting instrument receives the gold of beam incident optical sheet glass of this high sensitivity oscillating field optical waveguide sensor with processing means or the reflection light of Ag films carries out corresponding process, can obtain content or the concentration of a certain component accordingly in sample.Concentration such as the Cr (VI) in drinking water.
In another embodiment of the present utility model, its rigidity containment body is cut into two halves part by a middle glass plate being drilled with through hole and constitutes, the spaced spacing of its two halves part arranges and is connected between incidence and substrate optical flat, is made up of the import and export of the cavity of ducting layer the space formed that the two halves part of this glass plate is spaced.Remaining corresponding construction of this example or set-up mode method can be similar with above-described embodiment.
In another embodiment of the present utility model, the beam incident optical glass of its incident layer can be prism.Its corresponding gold or Ag films are attached on the corresponding wall surface of prism.The stainless steel tube composition that its section of rigidity containment body can use opposite end surface to be parallel to each other.Remaining corresponding construction of this example or set-up mode method can be similar with any of the above-described embodiment.
Claims (8)
1. a high sensitivity oscillating field optical waveguide sensor, including incident layer, substrate layer and be located at the ducting layer between described incident layer and substrate layer, described incident layer and substrate layer include the noble metal film being attached on corresponding incident glass and substrate glass respectively, it is characterized in that described ducting layer includes that a cavity, described cavity include the rigidity containment body being located between described incident layer and substrate layer or its noble metal film.
The most according to claim 1, high sensitivity oscillating field optical waveguide sensor, is characterized in that the opposite end end face of described rigidity containment body is parallel to each other.
High sensitivity oscillating field optical waveguide sensor the most according to claim 1 or claim 2, it is characterized in that described rigidity containment body is the glass plate that its wooden partition is provided with corresponding cavity, the relative two plate faces of this glass plate are parallel to each other (invention deletion is answered one and added when leading to), and the respective side walls of the cavity of this glass plate offers the import and export of cavity.
High sensitivity oscillating field optical waveguide sensor the most according to claim 1 or claim 2, it is characterized in that described rigidity containment body is cut into two halves part by a glass plate being provided with cavity in the middle of it and constitutes, the relative two plate faces of this glass plate are parallel to each other, the space that the two halves part of the glass plate being provided with cavity in the middle of this is spaced form the import and export of cavity.
The most according to claim 1, high sensitivity oscillating field optical waveguide sensor, is characterized in that described noble metal film is respectively arranged at the external table wall by cavity of its incident glass and substrate glass.
6. according to high sensitivity oscillating field optical waveguide sensor described in claim 1 or 5, it is characterized in that described substrate glass is optical glass sheet, described incident glass is prism or optical glass sheet.
7., according to high sensitivity oscillating field optical waveguide sensor described in claim 1 or 5, it is characterized in that described noble metal film is for gold or Ag films.
High sensitivity oscillating field optical waveguide sensor the most according to claim 1 or claim 2, is characterized in that described rigidity containment body is made up of optical flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065201.4U CN205538679U (en) | 2016-01-23 | 2016-01-23 | High sensitivity oscillating field optical wave conduction sensilla |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065201.4U CN205538679U (en) | 2016-01-23 | 2016-01-23 | High sensitivity oscillating field optical wave conduction sensilla |
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| CN205538679U true CN205538679U (en) | 2016-08-31 |
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| CN201620065201.4U Expired - Fee Related CN205538679U (en) | 2016-01-23 | 2016-01-23 | High sensitivity oscillating field optical wave conduction sensilla |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548093A (en) * | 2016-01-23 | 2016-05-04 | 宜春学院 | High-sensitivity oscillating field optical waveguide sensor |
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- 2016-01-23 CN CN201620065201.4U patent/CN205538679U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548093A (en) * | 2016-01-23 | 2016-05-04 | 宜春学院 | High-sensitivity oscillating field optical waveguide sensor |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |