CN201523367U - Optical fiber switch - Google Patents
Optical fiber switch Download PDFInfo
- Publication number
- CN201523367U CN201523367U CN2009201962357U CN200920196235U CN201523367U CN 201523367 U CN201523367 U CN 201523367U CN 2009201962357 U CN2009201962357 U CN 2009201962357U CN 200920196235 U CN200920196235 U CN 200920196235U CN 201523367 U CN201523367 U CN 201523367U
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- CN
- China
- Prior art keywords
- optical fiber
- light
- luminous tube
- detector
- switch
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- 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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Abstract
The utility model discloses an optical fiber switch, which consists of a luminous tube, a probe, an optical detector, an amplifier and an output indicator lamp. The probe consists of a transmitting optical fiber and a receiving optical fiber, one end of the transmitting optical fiber and one end of the receiving optical fiber are respectively located on one side of the luminous tube and one side of the detector, an other ends of the transmitting optical fiber and the receiving optical fiber which are separated via a certain detection space are concentrically opposite. Light emitted from the luminous tube is transmitted to the detection space via the transmitting optical fiber, if the detection space has a light shading object, the light is cut off, if not, the light can pass through the detection space, is emitted into the receiving optical fiber and then is transmitted to the optical detector via the receiving optical fiber, and the optical detector emitted by the light can generate corresponding signal current which is outputted after being amplified by the amplifier. The optical fiber switch has the advantages that the optical fiber switch is strong in anti-inference capacity, wide in application and the like, and can be utilized as a non-contact type circuit switch in various devices.
Description
Technical field
The utility model relates to a kind of optoelectronic switch of non-contact type, particularly utilizes the fiber switch of fiber optic conduction.
Background technology
Existing open flume type optoelectronic switch is made up of luminescent device, light-sensitive device and amplifying circuit, is provided with the detection groove between luminescent device and light-sensitive device, by the switching of light, fax sense, plays on-off action.As the non-contact type contactor, it has advantages such as the fast and good reproducibility of highly sensitive, response speed, but because the restriction of its structure, have following weak point: (1) poor anti jamming capability is not suitable for disturbing big occasion to use at temperature height, high humidity, high vibration or external electromagnetic field; (2) because the volume of optoelectronic switch own is bigger, the size of the fluting gap and the degree of depth is limited, causes detection range limited, and some special occasions can't play a role.
Summary of the invention
At the shortcoming of prior art, the utility model provides a kind of novel fiber switch.
To achieve these goals, the measure taked of the utility model:
A kind of fiber switch, form by luminous tube, probe, photo-detector, amplifier and output indicator, described probe is formed by sending optical fiber and receiving optical fiber, probe is positioned at luminous tube and photo-detector both sides, the other end of luminous tube and photo-detector sends optical fiber or receives optical fiber and be provided with the concentric condenser lens of optical fiber with one heart in opposite directions;
It can be circular, annular, rectangle that transmission optical fiber or reception optical fiber are positioned at the end surface shape that detects the space;
Series connection light source adjuster on the luminous tube.
The light that spontaneous light pipe sends, be sent to the detection space by sending optical fiber, this detects the space and exists if any the shading object, light path just is cut off, and exists as no shading object, and light promptly passes through, and inject reception optical fiber, be sent to photo-detector through receiving optical fiber, photo-detector is subjected to illumination and produces corresponding signal code, output after amplifier amplifies.So just can utilize moving shading object to make light path be " leading to ", " breaking " two states,, form the signal of telecommunication of high and low two kinds of level accordingly, realize the contactor effect at circuit output end through opto-electronic conversion.
The beneficial effects of the utility model: antijamming capability is strong, is suitable for characteristics such as wide, can be as the non-contact type contactor in various device.
Description of drawings
Fig. 1, overall structure schematic diagram of the present utility model.
Embodiment
The utility model fiber switch is made up of luminous tube 1, transmission optical fiber 2, reception optical fiber 3, photo-detector 4, amplifier 5 and output indicator 6.An end that sends optical fiber and reception optical fiber lays respectively at a side of luminous tube and photo-detector, and the other end across certain detection space 7 with one heart in opposite directions.When detecting space length when big, can be positioned at the end of detecting the space convergent lens 8,9 concentric with optical fiber is set sending optical fiber or receive the space, so that send the light reception optical fiber of injecting as much as possible of optical fiber ejaculation.It can be circle, annular, elongated rectangular or other geometry of selecting that transmission optical fiber or reception optical fiber are positioned at the end surface shape that detects the space, and which kind of concrete end surface shape the space adopts, and decides on different needs.The optical fiber that uses can be the light guide bundles that silica fiber, glass optical fiber, plastic fiber and their boundlings are formed.Luminous tube adopts fixedly light-emitting diode, finds visible or infrared light.Series connection light source adjuster 10 on luminous tube, it is suitable to regulate the luminous intensity that this light source adjuster 10 sends luminous tube, to guarantee the optimum Working of fiber switch.The light source adjuster can adopt the adjustable potentiometer or the adjustable pulse power.As output indicator 6, when fiber switch had output, this indicator light was bright with green luminotron.
Those skilled in the art's simple change and replacement all are within the protection range of the present utility model in this area.
Claims (3)
1. fiber switch, it is characterized in that: form by luminous tube, probe, photo-detector, amplifier and output indicator, described probe is formed by sending optical fiber and receiving optical fiber, probe is positioned at luminous tube and photo-detector both sides, the other end of luminous tube and photo-detector sends optical fiber or receives optical fiber and be provided with the concentric condenser lens of optical fiber with one heart in opposite directions.
2. fiber switch according to claim 1 is characterized in that, it can be circular, annular, rectangle that transmission optical fiber or reception optical fiber are positioned at the end surface shape that detects the space.
3. fiber switch according to claim 1 is characterized in that: series connection light source adjuster on the luminous tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201962357U CN201523367U (en) | 2009-09-17 | 2009-09-17 | Optical fiber switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201962357U CN201523367U (en) | 2009-09-17 | 2009-09-17 | Optical fiber switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201523367U true CN201523367U (en) | 2010-07-07 |
Family
ID=42509543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201962357U Expired - Fee Related CN201523367U (en) | 2009-09-17 | 2009-09-17 | Optical fiber switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201523367U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267537A (en) * | 2013-05-13 | 2013-08-28 | 东莞市嘉准电子科技有限公司 | Four-face light-emitting window exterior optical fiber tube |
| CN104076452A (en) * | 2013-03-29 | 2014-10-01 | 曹晨 | Optical fiber controller |
| CN106817116A (en) * | 2017-03-24 | 2017-06-09 | 重庆市光利医疗科技有限公司 | A kind of optical fiber for lighting switching system |
-
2009
- 2009-09-17 CN CN2009201962357U patent/CN201523367U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076452A (en) * | 2013-03-29 | 2014-10-01 | 曹晨 | Optical fiber controller |
| CN103267537A (en) * | 2013-05-13 | 2013-08-28 | 东莞市嘉准电子科技有限公司 | Four-face light-emitting window exterior optical fiber tube |
| CN106817116A (en) * | 2017-03-24 | 2017-06-09 | 重庆市光利医疗科技有限公司 | A kind of optical fiber for lighting switching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |