CN106289538A - Novel pyroelectric infrared sensor - Google Patents
Novel pyroelectric infrared sensor Download PDFInfo
- Publication number
- CN106289538A CN106289538A CN201610728969.XA CN201610728969A CN106289538A CN 106289538 A CN106289538 A CN 106289538A CN 201610728969 A CN201610728969 A CN 201610728969A CN 106289538 A CN106289538 A CN 106289538A
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- Prior art keywords
- sensitive unit
- pipe cap
- unit
- sensitive
- infrared sensor
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- 230000035945 sensitivity Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction 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
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
-
- 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)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a kind of Novel pyroelectric infrared sensor, belong to detecting devices technical field, its structure includes pipe cap, is provided with printed board in pipe cap, and the front of printed board is provided with sensitive unit, and the back side of printed board is provided with pin；Described sensitive unit is arranged in printed board by pillar, and pillar is supported on the center of sensitive unit；Described sensitive unit includes receiving sensitive unit and compensating sensitive unit, and one receives sensitive unit and compensation sensitive unit one compensating unit of composition, is provided with two compensating units in each detector.The sensitive unit of the detector of present invention pillar supports, and reduces temperature stress, improves the anti-overload ability of detector；Receiving sensitive unit and compensate sensitive unit formation double base double compensation, the warning accuracy of detector significantly improves.
Description
Technical field
The present invention relates to detecting devices technical field, specifically a kind of Novel pyroelectric infrared sensor.
Background technology
Infrared Detectors is that the energy that sightless infrared energy is transformed into other form of energy being prone to measure turns
Change device, be mainly used in detection human motion, illegal invasion and report to the police.Under the promotion of correlation technique development, as high-new skill
The infrared detection technique of art will be more extensive in following application, and status is more important.Core as infrared machine system is closed
Key member, the research of Infrared Detectors is the center of Infrared Physics & Technology development all the time.
Pyroelectric infrared detector is the one of Infrared Detectors, has and itself does not sends out radiation, device merit any kind of
Consume the least, good concealment, the advantage such as cheap, but, existing pyroelectric infrared detector is easily by various thermals source, light source
Interference, is additionally, since between sensitive unit and the printed board of existing pyroelectric infrared detector and there is gap, so sensitive unit exists
Under the influence of the factor such as temperature, pressure, stress deformation can be produced, cause the accuracy of detector, wrong report occurs.
Summary of the invention
For above-mentioned deficiency of the prior art, it is an object of the invention to provide a kind of Novel pyroelectric infrared sensing
Device, this detector anti-overload ability is strong, and detectivity is high.
The present invention solves the technical scheme that its technical problem taked: a kind of Novel pyroelectric infrared sensor, including
Pipe cap, an end face of described pipe cap is provided with infrared window, and the other end of pipe cap matches with base；At pipe cap and hub end
Being provided with printed board in the cavity become, the front of printed board is provided with sensitive unit, and the back side of printed board is provided with pin；Described spirit
Quick unit is arranged in printed board by pillar, and pillar is supported on the center of sensitive unit, and described pin extends to pipe through base
The outside of seat.
The sensitive unit of the present invention is arranged in printed board by pillar, and pillar forms central supported to sensitive unit, reduces temperature
Degree stress, and avoid sensitive unit to deform when by ambient pressure, improve the anti-overload ability of detector, improve detection
Sensitivity.
Further technical scheme is: described sensitive unit includes receiving sensitive unit and compensating sensitive unit, and one receives spirit
Quick unit and compensation sensitive unit one compensating unit of composition.Receive sensitive unit and compensate the complementation of sensitive unit, forming complementary type spirit
, when forward moves, there is just → negative signal in quick unit, when opposite direction moves, negative → positive signal occurs, can determine turnover side
To, improve detectivity and accuracy.
Further technical scheme is: described compensating unit is provided with two, constitutes four sensitive units of two compensating units
It is in same level.Two sensitive units are complementary, constitute a unit, and two unit are the most complementary, constitute double base double compensation and visit
Survey device, effectively eliminate external interference, improve detection accuracy.
Further technical scheme is: the sensitivity of the sensitive unit of described reception is not less than the sensitivity compensating sensitive unit.Mend
Repaying the redeeming of sensitive unit, its sensitivity is lower than receiving sensitive unit, on the premise of ensureing Effect on Detecting, permissible
Reduce cost.
Further technical scheme is: form square, structure after the position line successively of four described sensitive units
The sensitive unit of reception and the sensitive unit of compensation that become a compensating unit are positioned on a foursquare diagonal.The benefit of this arrangement
Repaying effective, detection accuracy is high.
Further technical scheme is: described pipe cap is one end closing, the cylindrical grooves of one end open, described infrared
Window is arranged on the end face of pipe cap blind end, and described base coordinates with the opening of pipe cap and by the closure of openings on pipe cap.
Projecting light onto after infrared window filtering clutter in sensitive unit, infrared window is played a supporting role by pipe cap.
For ease of detector installation on other equipment, further technical scheme is: the opening of described pipe cap
Edge is provided with a circle flange.
For ease of detector installation on other equipment, further technical scheme is: the outside of described flange is symmetrical
Be provided with two projections.
The invention has the beneficial effects as follows:
1, the sensitive unit of the present invention is arranged in printed board by pillar, and pillar forms central supported to sensitive unit, reduces
Temperature stress, and avoid sensitive unit to deform when by ambient pressure, improve the anti-overload ability of detector, improve and visit
Survey sensitivity.
2, by pillar, sensitive unit is installed, when sun direct projection, substantially reduces than original structure temperature noise, it is to avoid send out
Raw wrong report.
3, sensitive unit is complementary type, and one receives sensitive unit and the complementation of a compensation sensitive unit, when forward moves, occurs
, when opposite direction moves, there is negative → positive signal, can determine turnover direction, improve detectivity and standard in just → negative signal
Really property.
4, two sensitive units are complementary, constitute a unit, and two unit are the most complementary, constitute double base double compensation detector, have
The elimination external interference of effect, improves detection accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1 infrared window, 2 printed boards, 3 sensitive yuan, 4 pillars, 5 bases.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described:
As it is shown in figure 1, a kind of Novel pyroelectric infrared sensor, including pipe cap, an end face of described pipe cap is provided with
Infrared window 1, the other end of pipe cap matches with base 5；In the cavity that pipe cap and base 5 are formed, it is provided with printed board 2, prints
The front of plate 2 is provided with sensitive unit 3, and the back side of printed board 2 is provided with pin；Described sensitive unit 3 is arranged on print by pillar 4
In making sheet 2, pillar 4 is supported on the center of sensitive unit 3, and described pin extends to the outside of base 5 through base 5.
Described sensitive unit 3 includes that two receive sensitive unit and two sensitive units of compensation, a sensitive unit of reception and one
Compensate sensitive unit one compensating unit of composition, form two compensating units altogether, constitute at four sensitive units of two compensating units
In same level.The sensitivity of the sensitive unit of described reception is not less than the sensitivity compensating sensitive unit.Compensate sensitive unit only to rise
Compensating action, its sensitivity is lower than receiving sensitive unit, on the premise of ensureing Effect on Detecting, can reduce cost.
For the compensation effect reached, improving the precision of detection, the position of four described sensitive units connects successively
Forming square after line, the sensitive unit of reception and the sensitive unit of compensation that constitute a compensating unit are positioned at a foursquare diagonal
On.
Described pipe cap is one end closing, the cylindrical grooves of one end open, and described infrared window 1 is arranged on pipe cap and closes
On the end face of end, described base 5 coordinates with the opening of pipe cap and by the closure of openings on pipe cap.Infrared window 1 filtering clutter
After project light onto in sensitive unit 3, infrared window 1 is played a supporting role by pipe cap.
For ease of detector installation on other equipment, the edge of the opening of described pipe cap is provided with a circle flange,
What the outside of described flange was symmetrical is provided with two projections.
The sensitive unit 3 of the present invention is arranged in printed board 2 by pillar 4, and pillar 4 forms central supported to sensitive unit 3, subtracts
Little temperature stress, and avoid sensitive unit 3 to deform when by ambient pressure, improve the anti-overload ability of detector, carry
High detection sensitivity.
Receive sensitive unit and compensate the complementation of sensitive unit, forming the sensitive unit of complementary type, → negative letter, when forward moves, is just occurring
Number, when opposite direction moves, negative → positive signal occurs, turnover direction can be determined, improve detectivity and accuracy.Two
Sensitive unit is complementary, constitutes a unit, and two unit are the most complementary, constitutes double base double compensation detector, effectively eliminates extraneous dry
Disturb, improve detection accuracy.
The foregoing is only presently preferred embodiments of the present invention, be not whole embodiments of the present invention, not in order to limit
The present invention processed, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in
Within protection scope of the present invention.
In addition to technical characteristic described in description, remaining technical characteristic is all known to a person skilled in the art technology.
Claims (8)
1. a Novel pyroelectric infrared sensor, is characterized in that, including pipe cap, an end face of described pipe cap is provided with infrared
Window, the other end of pipe cap matches with base；It is provided with printed board, the front of printed board in the cavity that pipe cap and base are formed
Being provided with sensitive unit, the back side of printed board is provided with pin；Described sensitive unit is arranged in printed board by pillar, and pillar props up
Support is in the center of sensitive unit, and described pin extends to the outside of base through base.
A kind of Novel pyroelectric infrared sensor the most according to claim 1, is characterized in that, described sensitive unit includes connecing
Receiving sensitive unit and compensate sensitive unit, one receives sensitive unit and compensation sensitive unit one compensating unit of composition.
A kind of Novel pyroelectric infrared sensor the most according to claim 2, is characterized in that, described compensating unit is provided with two
Individual, four the sensitive units constituting two compensating units are in same level.
A kind of Novel pyroelectric infrared sensor the most according to claim 2, is characterized in that, the spirit of the sensitive unit of described reception
Sensitivity is not less than the sensitivity compensating sensitive unit.
A kind of Novel pyroelectric infrared sensor the most according to claim 3, is characterized in that, four described sensitive units
Forming square after position line successively, the sensitive unit of reception and the sensitive unit of compensation that constitute a compensating unit are positioned at pros
On one diagonal of shape.
A kind of Novel pyroelectric infrared sensor the most according to claim 1, is characterized in that, described pipe cap is an end seal
Close, the cylindrical grooves of one end open, described infrared window is arranged on the end face of pipe cap blind end, described base and pipe cap
Opening coordinates and by the closure of openings on pipe cap.
A kind of Novel pyroelectric infrared sensor the most according to claim 6, is characterized in that, the opening of described pipe cap
Edge is provided with a circle flange.
A kind of Novel pyroelectric infrared sensor the most according to claim 7, is characterized in that, the outside of described flange is symmetrical
Be provided with two projections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728969.XA CN106289538B (en) | 2016-08-26 | 2016-08-26 | Pyroelectric infrared sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610728969.XA CN106289538B (en) | 2016-08-26 | 2016-08-26 | Pyroelectric infrared sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106289538A true CN106289538A (en) | 2017-01-04 |
| CN106289538B CN106289538B (en) | 2017-09-15 |
Family
ID=57676551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610728969.XA Active CN106289538B (en) | 2016-08-26 | 2016-08-26 | Pyroelectric infrared sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106289538B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024235A (en) * | 2019-11-22 | 2020-04-17 | 北京空间机电研究所 | Infrared focal plane supporting structure with thermal stress unloading function |
| CN114295220A (en) * | 2021-12-11 | 2022-04-08 | 张蒙 | Pyroelectric infrared sensor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151615A (en) * | 1995-09-18 | 1997-06-11 | 株式会社村田制作所 | Infrared sensor, sensor manufacturing pallet and method of manufacturing infrared sensor |
| CN102359821A (en) * | 2011-08-23 | 2012-02-22 | 郑州炜盛电子科技有限公司 | Pyroelectric infrared-sensitive element and pyroelectric infrared detector |
-
2016
- 2016-08-26 CN CN201610728969.XA patent/CN106289538B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151615A (en) * | 1995-09-18 | 1997-06-11 | 株式会社村田制作所 | Infrared sensor, sensor manufacturing pallet and method of manufacturing infrared sensor |
| CN102359821A (en) * | 2011-08-23 | 2012-02-22 | 郑州炜盛电子科技有限公司 | Pyroelectric infrared-sensitive element and pyroelectric infrared detector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024235A (en) * | 2019-11-22 | 2020-04-17 | 北京空间机电研究所 | Infrared focal plane supporting structure with thermal stress unloading function |
| CN111024235B (en) * | 2019-11-22 | 2021-06-11 | 北京空间机电研究所 | Infrared focal plane supporting structure with thermal stress unloading function |
| CN114295220A (en) * | 2021-12-11 | 2022-04-08 | 张蒙 | Pyroelectric infrared sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106289538B (en) | 2017-09-15 |
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Effective date of registration: 20181119 Address after: 255214 Lunan, Liangzhuang Section, Central Road, Xiajiazhuang Town, Boshan District, Zibo City, Shandong Province (No. 82, Boji Road) Patentee after: Zibo New Sensor Co., Ltd. Address before: 255214 South of Liangzhuang Section of Xiajiazhuang Town Central Road, Boshan District, Zibo City, Shandong Province Patentee before: Boshan Zibo new sensor factory |