CN102538981B - Photoelectric detector - Google Patents
Photoelectric detector Download PDFInfo
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- CN102538981B CN102538981B CN201210029788XA CN201210029788A CN102538981B CN 102538981 B CN102538981 B CN 102538981B CN 201210029788X A CN201210029788X A CN 201210029788XA CN 201210029788 A CN201210029788 A CN 201210029788A CN 102538981 B CN102538981 B CN 102538981B
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- optical fiber
- fixed
- light source
- laser light
- pcb board
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Abstract
The invention relates to a photoelectric detector which comprises a convex PCB (printed circuit board), wherein the middle part of the convex PCB is provided with a square through hole; one side of the square through hole is provided with a support base; the support base is fixed on the top surface of the convex PCB; the top surface of the support base is provided with a fixing block; a laser light source optical fiber and an optical fiber fixing suspending arm are fixed on the fixing block; the laser light source optical fiber is fixed on the optical fiber fixing suspending arm through glue; and two signal test probes are fixed on the bottom surface of the convex PCB. The photoelectric detector provided by the invention has the beneficial effects that after the suspending arm is added, the illumination position can be regulated as long as the suspending arm is regulated, but the suspending arm is plastic, is elastic and can be bent for small extent, and can not restore to the original shape after being bent, thus the position regulation of the suspending arm can be realized easily, also the shaking of a machine can not influence the suspending arm, and the test accuracy is also improved greatly.
Description
Technical field
The present invention relates to a kind of photodetector.
Background technology
Photodetector refers to cause by radiation a kind of physical phenomenon that illuminated material electric conductivity changes.Photodetector has extensive use in the every field of military and national economy.Be mainly used in radionetric survey and detection, industry automatic control, Photometric Measurement etc. at visible light or near-infrared band; Be mainly used in the aspects such as missile guidance, infrared thermal imaging, infrared remote sensing at infrared band.The Another Application of photoconductor is to do the pick-up tube target surface with it.When there is response test in photodetector in the market the selection of light source and fixing mode can't standardization, cause in test process parasitic light for the impact of integrated testability stability, and light source is injected the uppity difficult point of angle.
Summary of the invention
The purpose of this invention is to provide a kind of photodetector, to overcome the currently available technology above shortcomings.
The objective of the invention is to be achieved through the following technical solutions:
a kind of photodetector, comprise the convex shape pcb board, the middle part of described convex shape pcb board is provided with square through hole, one side of this square through hole is provided with bearing, bearing is fixed in the end face of convex shape pcb board, the end face of bearing is provided with fixed block, be fixed with LASER Light Source optical fiber and optical fiber cantilever mounted on fixed block, LASER Light Source optical fiber is fixed on the optical fiber cantilever mounted by glue, the square through hole that one end of LASER Light Source optical fiber and optical fiber cantilever mounted passes convex shape pcb board middle part is suspended in the photodiode top, the bottom surface of convex shape pcb board is fixed with two signal testing probes, the end of signal testing probe is connected with photodiode.
Beneficial effect of the present invention is: after setting up suspension arm, only needing to adjust suspension arm is capable of regulating illumination position, and suspension arm is plastic, flexible and can be by bending by a small margin, can not restore to the original state after being bent, so just be easy to while adjusting position realize, and in test process, rocking of machine can be not influential to suspension arm yet, test accuracy also improves greatly.
Description of drawings
Below with reference to the accompanying drawings the present invention is described in further detail.
Fig. 1 is the front view of the described photodetector of the embodiment of the present invention;
Fig. 2 is the upward view of the described photodetector of the embodiment of the present invention.
In figure:
1, convex shape pcb board; 2, square through hole; 3, bearing; 4, fixed block; 5, LASER Light Source optical fiber; 6, optical fiber cantilever mounted; 7, photodiode; 8, signal testing probe.
Embodiment
as shown in Figure 1-2, the described a kind of photodetector of the embodiment of the present invention, comprise convex shape pcb board 1, the middle part of described convex shape pcb board 1 is provided with square through hole 2, one side of this square through hole 2 is provided with bearing 3, bearing 3 is fixed in the end face of convex shape pcb board 1, the end face of bearing 3 is provided with fixed block 4, be fixed with LASER Light Source optical fiber 5 and optical fiber cantilever mounted 6 on fixed block 4, LASER Light Source optical fiber 5 is fixed on optical fiber cantilever mounted 6 by glue, the square through hole 2 that one end of LASER Light Source optical fiber 5 and optical fiber cantilever mounted 6 passes convex shape pcb board 1 middle part is suspended in photodiode 7 tops, the bottom surface of convex shape pcb board 1 is fixed with two signal testing probes 8, the end of signal testing probe 8 is connected with photodiode 7.
During concrete the use, signal testing probe 8 is fixed on convex shape pcb board 1 by the ring surface welding technology, signal just can be popped one's head in and 8 enter product and test by signal testing when signal testing probe 8 contact product, optical fiber cantilever mounted 6 has intensity and toughness and plastic metal suspension arm concurrently, can be also to be fixed on convex shape pcb board 1 by surface-welding technique equally, LASER Light Source optical fiber 5 be bundled on optical fiber cantilever mounted 6.Can guide LASER Light Source optical fiber 5 according to certain angle and highly make illumination be mapped to the photosensitive region of photodetector by optical fiber cantilever mounted 6, and by the position height angle of adjusting optical fiber cantilever mounted 6, just can adjust the position of illumination, owing to adopting plastic metal material, the setting range height of LASER Light Source optical fiber 5 can 10 microns ~ 2 millimeters, angle can be at 75 degree ~ 85 degree.
Optical fiber itself is softer, is difficult for location, as long as the several microns of displacement just likely can, on the impact of illumination power generation, just can change illumination because of rocking after fixing by suspension arm, thereby greatly improve the accuracy of test
the above, it is only preferred embodiment of the present invention, not the present invention is made any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art are not within breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be for breaking away from the content of technical solution of the present invention, and technical spirit of the present invention any simple modification that above embodiment has been done, equivalent variations and modification, within all still belonging to protection scope of the present invention.
Claims (1)
1. photodetector, comprise convex shape pcb board (1), it is characterized in that: the middle part of described convex shape pcb board (1) is provided with square through hole (2), one side of this square through hole (2) is provided with bearing (3), bearing (3) is fixed in the end face of convex shape pcb board (1), the end face of bearing (3) is provided with fixed block (4), be fixed with LASER Light Source optical fiber (5) and optical fiber cantilever mounted (6) on fixed block (4), LASER Light Source optical fiber (5) is fixed on optical fiber cantilever mounted (6) by glue, the square through hole (2) that one end of LASER Light Source optical fiber (5) and optical fiber cantilever mounted (6) passes convex shape pcb board (1) middle part is suspended in photodiode (7) top, the bottom surface of convex shape pcb board (1) is fixed with two signal testing probes (8), the end of signal testing probe (8) is connected with photodiode (7), optical fiber cantilever mounted (6) is to have intensity and toughness and plastic metal cantilever concurrently, guide LASER Light Source optical fiber (5) according to certain angle and highly make illumination be mapped to the photosensitive region of photodetector by optical fiber cantilever mounted (6), and by the position height angle of adjusting optical fiber cantilever mounted (6), just can adjust the position of illumination, owing to adopting plastic metal material, the setting range height of LASER Light Source optical fiber (5) can 10 microns-2 millimeters, angle can be at 75 degree-85 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029788XA CN102538981B (en) | 2012-02-10 | 2012-02-10 | Photoelectric detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029788XA CN102538981B (en) | 2012-02-10 | 2012-02-10 | Photoelectric detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102538981A CN102538981A (en) | 2012-07-04 |
| CN102538981B true CN102538981B (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210029788XA Active CN102538981B (en) | 2012-02-10 | 2012-02-10 | Photoelectric detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102538981B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5519795A (en) * | 1995-07-10 | 1996-05-21 | Minnesota Mining And Manufacturing Company | Multiple-size optical fiber identifier |
| CN1613437A (en) * | 2004-12-07 | 2005-05-11 | 天津大学 | Optical fibre bending sensor for monitoring artificial cochlea electrode bending implantation and use thereof |
| CN1796989A (en) * | 2004-12-30 | 2006-07-05 | 中国科学院电工研究所 | Method and devices of biochemical detection by using micro semi girder |
| CN101886922A (en) * | 2009-05-15 | 2010-11-17 | 松下电器产业株式会社 | Probe for three-dimensional shape measuring apparatus and 3 d shape testing device |
-
2012
- 2012-02-10 CN CN201210029788XA patent/CN102538981B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5519795A (en) * | 1995-07-10 | 1996-05-21 | Minnesota Mining And Manufacturing Company | Multiple-size optical fiber identifier |
| CN1613437A (en) * | 2004-12-07 | 2005-05-11 | 天津大学 | Optical fibre bending sensor for monitoring artificial cochlea electrode bending implantation and use thereof |
| CN1796989A (en) * | 2004-12-30 | 2006-07-05 | 中国科学院电工研究所 | Method and devices of biochemical detection by using micro semi girder |
| CN101886922A (en) * | 2009-05-15 | 2010-11-17 | 松下电器产业株式会社 | Probe for three-dimensional shape measuring apparatus and 3 d shape testing device |
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| Publication number | Publication date |
|---|---|
| CN102538981A (en) | 2012-07-04 |
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