CN106969842A - A kind of photoelectric sensor and infrared radiation thermometer - Google Patents
A kind of photoelectric sensor and infrared radiation thermometer Download PDFInfo
- Publication number
- CN106969842A CN106969842A CN201710249341.6A CN201710249341A CN106969842A CN 106969842 A CN106969842 A CN 106969842A CN 201710249341 A CN201710249341 A CN 201710249341A CN 106969842 A CN106969842 A CN 106969842A
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- photoelectric sensor
- sensitive chip
- light source
- infrared
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- 230000005855 radiation Effects 0.000 title claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 22
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 15
- 230000008859 change Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The present invention relates to a kind of photoelectric sensor and infrared radiation thermometer, this photoelectric sensor is symmetrically arranged with multiple visible light sources centered on infrared sensitive chip, and the photosurface of infrared sensitive chip and the light-emitting area of visible light source are coplanar；This photoelectric sensor is coordinated into condenser lens and detection circuit composition infrared radiation thermometer, thermometric object noncontact is treated in realization, during remote temperature measurement, when the hot spot of each visible light source is when thermometric body surface is focused on, according to the invertibity of light, treat that thermometric body surface is located at the infrared light given off at each spot center position and transmitted just to the photosurface of infrared sensitive chip, this optical signal is converted to electric signal by infrared sensitive chip, this electric signal passes through the detection circuit conversion electrically connected with this photoelectric sensor and exported for temperature signal, thermometric object noncontact is treated so as to realize, remote temperature measurement, its temperature measuring point accurate positioning, the temperature survey less than the trickle target in the range of 0.1mm can be achieved.
Description
Technical field
The present invention relates to sensor technical field, more particularly to a kind of photoelectric sensor and infrared radiation thermometer.
Background technology
Temperature is a physical quantity, represents the cold and hot degree of object, is a commonplace parameter value in thermal process；Very
The production process of conglomerate needs to carry out temperature strict monitoring and control, and temperature controlled quality is directly connected to production
Quality and performance.Various required with the mankind with the development of science and technology, traditional contact temperature-measuring mode can not
The thermometric demand of some modern special dimensions is met, the demand to noncontact, remote temperature measurement technology is increasing.But it is existing
Temperature sensor can not be met for contactless temperature-measuring, trickle target, too high/low problem of temperature.
The content of the invention
It is an object of the present invention to provide a kind of photoelectric sensor and infrared radiation thermometer, above-mentioned present in prior art ask is solved
Topic.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
It is provided with circuit substrate, the circuit substrate and is provided with a kind of photoelectric sensor, including base, the base
Multiple visible ray light are also symmetrically arranged with infrared sensitive chip, the circuit substrate centered on the infrared sensitive chip
Source, and the light-emitting area of the photosurface and the visible light source of the infrared sensitive chip is coplanar, the base is in the circuit
Also extended through around substrate and be provided with multiple pins, the pin is electrically connected with the circuit substrate, the circuit substrate respectively with
Infrared sensitive chip and the visible light source electrical connection；Also include the pipe cap that cover is connected on the base, and the pipe
Permission infrared light is provided with the position of the crown portion correspondence infrared sensitive chip and the visible light source and described visible
The light transmissive optical window of transmitting of radiant.
The beneficial effects of the invention are as follows：This photoelectric sensor is symmetrically arranged with multiple visible centered on infrared sensitive chip
Radiant, and the photosurface of infrared sensitive chip and the light-emitting area of visible light source are coplanar；This photoelectric sensor is coordinated and focused on
When lens and detection circuit realiration treat the noncontact of thermometric object, remote temperature measurement, regulation photoelectric sensor is with treating thermometric object
The distance between and/or with condenser lens, or change the focal length of condenser lens, when the hot spot of each visible light source is treating thermometric thing
When body surface face is focused on, according to the invertibity of light, treat that thermometric body surface is located at the infrared light given off at each spot center position
Just transmit to the photosurface of infrared sensitive chip, this optical signal is converted to electric signal by infrared sensitive chip, this electric signal warp
The detection circuit conversion electrically connected with this photoelectric sensor is temperature signal output, thus realize treat the noncontact of thermometric object, it is remote
Apart from thermometric, the temperature survey less than the trickle target in the range of 0.1mm can be achieved in its temperature measuring point accurate positioning.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the visible light source is LED/light source.
Beneficial effect using above-mentioned further scheme is：LED/light source small volume, is treating thermometric body surface focal beam spot
It is small；And LED/light source can meet different-waveband visible ray demand, different colours are treated with thermometric object selects different-waveband LED/light source,
Improve hot spot color and treat thermometric object color contrast；And then beneficial to the precise positioning for treating thermometric body surface temperature measuring point.
Further, the LED/light source is RGBLED light sources.
Beneficial effect using above-mentioned further scheme is：RGBLED light sources can launch various according to the principle of three primary colours
Different colours are treated thermometric object by color visible, it is only necessary to which required face can be launched by adjusting the driving power supply of RGBLED light sources
Color visible ray, without changing visible light source, and then improves this photoelectric sensor applicability.
Further, the infrared sensitive chip is the infrared sensitive chips of InGaAs.
Beneficial effect using above-mentioned further scheme is：The infrared sensitive chips of InGaAs are beneficial to realize this photoelectric sensor
Minimize, low cost and high reliability, it is adaptable to infrared thermography.
Further, the circuit substrate is ceramic circuit board.
Beneficial effect using above-mentioned further scheme is：Ceramic circuit board has good electrical insulation performance, and height is led
Thermal characteristics, beneficial to the radiating of visible light source and infrared sensitive chip.
Further, the optical window is the parallel flat of glass material.
Beneficial effect using above-mentioned further scheme is：Glass material can realize the various required ripples of transmission by plated film
Section, and light through parallel flat rear to constant, simplify light path, beneficial to from and the focusing that uses cooperatively of photoelectric sensor it is saturating
Mirror.
Further, the pin is run through by the insulating ceramics circle being embedded on the base and is arranged on the base.
Beneficial effect using above-mentioned further scheme is：Improving pin sets stability, and pipe cap to be formed with base
Accommodating cavity sealing.
Further, in addition to environment temperature sensor, the environment temperature sensor is arranged on the pipe cap and the pipe
Inside the accommodating cavity formed between seat.
Beneficial effect using above-mentioned further scheme is：Environment temperature sensor can be monitored around infrared sensitive chip
Environment temperature, it is ensured that at infrared sensitive chip and control environment, prevent environment temperature is too high or too low from damaging infrared photosensitive core
Piece.
Further, the environment temperature sensor is arranged on the base.
Beneficial effect using above-mentioned further scheme is：Infrared sensitive chip is more nearly, beneficial to monitoring；And avoid ring
The transmitting light of border temperature sensor influence visible light source and infrared sensitive chip pre-receiving treat the red of thermometric object radiation
The transmission of outer light.
Another technical scheme of the present invention is as follows：
A kind of infrared radiation thermometer, including sleeve, one end of the sleeve are provided with any described one kind of claim 1 to 9
Photoelectric sensor, the other end is provided with condenser lens；Also include detection circuit, the detection circuit and photoelectric sensor electricity
Connection.
The beneficial effects of the invention are as follows：Regulation photoelectric sensor and treat thermometric object and/or between condenser lens away from
From, or change the focal length of condenser lens, when the hot spot of each visible light source is when thermometric body surface is focused on, according to light can
Inverse property, treats that thermometric body surface is located at the infrared light given off at each spot center position and transmitted just to infrared sensitive chip
This optical signal is converted to electric signal by photosurface, infrared sensitive chip, and circuit conversion is that temperature signal is defeated to this electric signal after testing
Go out, the noncontact of thermometric object, remote temperature measurement are treated so as to realize, its temperature measuring point accurate positioning can be achieved to be less than in the range of 0.1mm
Trickle target temperature survey.
Brief description of the drawings
Fig. 1 is that a kind of photoelectric sensor of the invention has two visible light sources and uncapped top view；
Fig. 2 is that a kind of photoelectric sensor of the invention has four visible light sources and uncapped top view；
Fig. 3 is a kind of photoelectric sensor Fig. 1 or Fig. 2 A-A sectional views of the invention；
Fig. 4 is a kind of fundamental diagram of infrared radiation thermometer of the invention；
The enlarged drawing that Fig. 5 is A in a kind of infrared radiation thermometer Fig. 4 of the invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, photoelectric sensor, 11, base, 111, circuit substrate, 1111, infrared sensitive chip, 11111, photosurface,
1112nd, visible light source, 11121, light-emitting area, 112, pin, 113, insulating ceramics circle, 114, environment temperature sensor, 12, pipe
Cap, 121, optical window, 2, sleeve, 3, condenser lens, 4, index point, 5, target point.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figures 1 to 3, on a kind of photoelectric sensor described in the embodiment of the present invention 1, including base 11, the base 11
Be provided with circuit substrate 111, the circuit substrate 111 and be provided with infrared sensitive chip 1111, on the circuit substrate 111 with
Multiple visible light sources 1112 are also symmetrically arranged with centered on the infrared sensitive chip 1111, for example, as depicted in figs. 1 and 2,
Have two and four visible light sources 1112 respectively, and the photosurface 11111 of the infrared sensitive chip 1111 with it is described
The light-emitting area 11121 of visible light source 1112 is coplanar, the base 11 also extended through around the circuit substrate 111 be provided with it is many
Individual pin 112, the pin 112 is electrically connected with the circuit substrate 111, the circuit substrate 111 respectively with the infrared sense
Optical chip 1111 and the visible light source 1112 are electrically connected；Also include the pipe cap 12 that cover is connected on the base 11, and it is described
It is infrared that permission is provided with the position of the top of pipe cap 12 the correspondence infrared sensitive chip 1111 and the visible light source 1112
The light transmissive optical window 121 of transmitting of light and the visible light source 1112；In order to avoid external environment is to the dry of photoelectric sensor 1
Disturb, the material of the pipe cap 12 and base 11, which can be used, can cut down metal, and pipe cap 12 and base 11 are tightly connected, the optical window
121 seal with pipe cap 12.
A kind of photoelectric sensor described in the embodiment of the present invention 2, on the basis of embodiment 1, the visible light source 1112
For LED/light source.
A kind of photoelectric sensor described in the embodiment of the present invention 3, on the basis of embodiment 2, the LED/light source is RGBLED
Light source.
A kind of photoelectric sensor described in the embodiment of the present invention 4, it is described red on the basis of any embodiment of embodiment 1 to 3
Outer sensitive chip 1111 is the infrared sensitive chips of InGaAs.
A kind of photoelectric sensor described in the embodiment of the present invention 5, on the basis of any embodiment of embodiment 1 to 4, the electricity
Base board 111 is ceramic circuit board.
A kind of photoelectric sensor described in the embodiment of the present invention 6, on the basis of any embodiment of embodiment 1 to 5, the light
Window 121 is the parallel flat of glass material.
A kind of photoelectric sensor described in the embodiment of the present invention 7, it is described to draw on the basis of any embodiment of embodiment 1 to 6
Pin 112 is run through by the insulating ceramics circle 113 being embedded on the base 11 to be arranged on the base 11.
A kind of photoelectric sensor described in the embodiment of the present invention 8, on the basis of any embodiment of embodiment 1 to 7, in addition to
Environment temperature sensor 114, the environment temperature sensor 114 is arranged between the pipe cap 11 and the base 12 and formed
Accommodating cavity inside.
A kind of photoelectric sensor described in the embodiment of the present invention 9, on the basis of embodiment 8, the environment temperature sensor 114
It is arranged on the base 11.
As shown in Fig. 4 to 5, a kind of infrared radiation thermometer described in the embodiment of the present invention 10, including sleeve 2, the one of the sleeve 2
End is provided with a kind of any photoelectric sensor 1 of embodiment 1 to 9, and the other end is provided with condenser lens 3；Also include detection electricity
Road, not shown in figure, the detection circuit is electrically connected with the photoelectric sensor 1.In order to improve each visible light source 1112
Hot spot is treating the focusing effect of thermometric body surface, and the infrared sensitive chip 1111 of the photoelectric sensor 1 is centrally located at institute
On the optical axis for stating condenser lens 3, so that each visible light source 1112 is symmetrical with this optical axis.Can respectively it see for the ease of realizing
The hot spot of radiant 1112 is treating the focusing of thermometric body surface；This sleeve 2 may be designed as telescopic sleeve, so as to adjust photoelectric transfer
The distance between sensor 1 and condenser lens 3, realize focusing；It is of course also possible to use varifocal condenser lens 3, such as multiple
Microscope group, by changing the distance between each lens, realizes zoom into the condenser lens 3 of lens group form.
In use, regulation photoelectric sensor 1 and treating thermometric object and/or the distance between with condenser lens 3, or change poly-
The focal length of focus lens 3, when the hot spot of each visible light source 1112 is when thermometric body surface is focused on, according to the invertibity of light,
Treat that thermometric body surface is located at the infrared light given off at each spot center position and transmitted just to infrared sensitive chip 1111
Photosurface 11111, for example, as shown in figure 5, when hot spot is when whne the focusing of index point 4 of thermometric body surface, treating thermometric object table
The infrared light that the target point 5 in face gives off is transmitted to infrared sensitive chip 1111 just, and infrared sensitive chip 1111 believes this light
Number electric signal is converted to, circuit conversion is temperature signal output to this electric signal after testing, and thermometric body surface mesh is treated so as to realize
Noncontact, remote temperature measurement at punctuate 5.
This infrared radiation thermometer treats the temperature survey of thermometric object by contactless realize, its photoelectric sensor 1 with it is to be measured
Warm object without directly contacting, be prevented effectively from photoelectric sensor 1 by treat thermometric object rub, corrode or adhere to etc. factor influenceed and
Shorten the life-span；And the integrated level of this photoelectric sensor 1 is high, production cost reduction；It is simple in construction, small volume, not by measurement space
Influence；Carry environment temperature sensor, protect infrared sensitive chip 1111, not by treating that thermometric object and surrounding enviroment are influenceed,
Thermometric is accurate；Response time is fast, and temperature resolution is high；Strong antijamming capability, adapts to high temperature and rugged environment.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. it is provided with circuit substrate on a kind of photoelectric sensor, it is characterised in that including base (11), the base (11)
(111), it is provided with the circuit substrate (111) on infrared sensitive chip (1111), the circuit substrate (111) with described red
Multiple visible light sources (1112), and the infrared sensitive chip are also symmetrically arranged with centered on outer sensitive chip (1111)
(1111) light-emitting area (11121) of photosurface (11111) and the visible light source (1112) is coplanar, and the base (11) exists
Also extended through around the circuit substrate (111) and be provided with multiple pins (112), the pin (112) and the circuit substrate
(111) electrically connect, the circuit substrate (111) respectively with the infrared sensitive chip (1111) and the visible light source
(1112) electrically connect；Also include correspondence at the top of the pipe cap (12) that cover is connected on the base (11), and the pipe cap (12) described
Permission infrared light and the visible ray are provided with the position of infrared sensitive chip (1111) and the visible light source (1112)
The light transmissive optical window of transmitting (121) of light source (1112).
2. a kind of photoelectric sensor according to claim 1, it is characterised in that the visible light source (1112) is LED light
Source.
3. a kind of photoelectric sensor according to claim 2, it is characterised in that the LED/light source is RGBLED light sources.
4. a kind of photoelectric sensor according to claim 1, it is characterised in that the infrared sensitive chip (1111) is
The infrared sensitive chips of InGaAs.
5. a kind of photoelectric sensor according to claim 1, it is characterised in that the circuit substrate (111) is ceramic circuit
Substrate.
6. a kind of photoelectric sensor according to claim 1, it is characterised in that the optical window (121) is the flat of glass material
Row flat board.
7. a kind of photoelectric sensor according to claim 1, it is characterised in that the pin (112) is described by being embedded in
Insulating ceramics circle (113) on base (11), which runs through, to be arranged on the base (11).
8. according to a kind of any photoelectric sensor of claim 1 to 7, it is characterised in that also including environment temperature sensor
(114), the environment temperature sensor (114) is arranged on formed between the pipe cap (12) and the base (11) accommodating
Intracavitary portion.
9. a kind of photoelectric sensor according to claim 8, it is characterised in that the environment temperature sensor (114) is set
On the base (11).
10. a kind of infrared radiation thermometer, it is characterised in that including sleeve (2), one end of the sleeve (2) is provided with claim 1
To a kind of 9 any photoelectric sensors (1), the other end is provided with condenser lens (3)；Also include detection circuit, the detection
Circuit is electrically connected with the photoelectric sensor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249341.6A CN106969842A (en) | 2017-04-17 | 2017-04-17 | A kind of photoelectric sensor and infrared radiation thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249341.6A CN106969842A (en) | 2017-04-17 | 2017-04-17 | A kind of photoelectric sensor and infrared radiation thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106969842A true CN106969842A (en) | 2017-07-21 |
Family
ID=59332200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710249341.6A Pending CN106969842A (en) | 2017-04-17 | 2017-04-17 | A kind of photoelectric sensor and infrared radiation thermometer |
Country Status (1)
| Country | Link |
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| CN (1) | CN106969842A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682479A (en) * | 2018-12-25 | 2019-04-26 | 北京双竞科技有限公司 | A kind of edible oil oil temperature real-time detecting system |
| CN113874690A (en) * | 2019-04-02 | 2021-12-31 | 印象科技有限公司 | Non-contact temperature sensor |
| CN114112045A (en) * | 2020-08-28 | 2022-03-01 | 宁波舜宇光电信息有限公司 | Infrared temperature measurement module, terminal equipment and temperature measurement method |
| CN115763577A (en) * | 2022-11-29 | 2023-03-07 | 山东中科际联光电集成技术研究院有限公司 | Temperature control anti-overload optical assembly |
| WO2023248575A1 (en) * | 2022-06-24 | 2023-12-28 | 浜松ホトニクス株式会社 | Infrared detector |
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Effective date of registration: 20171213 Address after: 430000 East Lake Development Zone, Wuhan City, Hubei Province, hi-tech four Gezhouba Dam Sun City 2-601 Applicant after: Li Jun Address before: 430200 East Lake Development Zone, Wuhan City, Hubei Province, hi-tech four Gezhouba Dam Sun City 2-601 Applicant before: WUHAN LEGEND TECHNOLOGY CO.,LTD. |
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Application publication date: 20170721 |