CN101581605A - Thermal reactor type infrared detector - Google Patents

Thermal reactor type infrared detector Download PDF

Info

Publication number
CN101581605A
CN101581605A CNA2008101795674A CN200810179567A CN101581605A CN 101581605 A CN101581605 A CN 101581605A CN A2008101795674 A CNA2008101795674 A CN A2008101795674A CN 200810179567 A CN200810179567 A CN 200810179567A CN 101581605 A CN101581605 A CN 101581605A
Authority
CN
China
Prior art keywords
thermal reactor
infrared detector
reactor type
type infrared
optical filter
Prior art date
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.)
Pending
Application number
CNA2008101795674A
Other languages
Chinese (zh)
Inventor
川口浩二
木村亲吾
田中基树
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON CERAMICS CO Ltd
Original Assignee
NIPPON CERAMICS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON CERAMICS CO Ltd filed Critical NIPPON CERAMICS CO Ltd
Publication of CN101581605A publication Critical patent/CN101581605A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02Constructional details
    • G01J5/027Constructional details making use of sensor-related data, e.g. for identification of sensor parts or optical elements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/688Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
    • G01F1/6888Thermoelectric elements, e.g. thermocouples, thermopiles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02Constructional details
    • G01J5/08Optical arrangements
    • G01J5/0806Focusing or collimating elements, e.g. lenses or concave mirrors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/12Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/12Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
    • G01J2005/123Thermoelectric array

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Fluid Mechanics (AREA)
  • Radiation Pyrometers (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

In a thermal reactor type infrared detector, the causes for the cost increase of the thermal reactor type detector are as follows: a heat radiator is provided on the thermal reactor type infrared detector for increasing the temperature detecting precision when the ambient temperature is changed; the materials of aluminium or copper with high heat conductivity are used for increasing the heat capacity; the infrared detector is processed according to a target shape; and the operability for mounting the articles equipped on the thermal reactor type infrared detector. The thermal reactor type infrared detector of the invention is characterized in that a planar silicon optical filter with low infrared absorptivity is provided at the front position of the thermal reactor type infrared detector through the casing which is made of resin or metal for storing the thermal reactor type infrared detector and a front casing opening of the visual field range of a thermal reactor sensor of the cover. Furthermore the temperature detection precision in temperature changing is increased by the heat insulation caused by the air layer.

Description

Thermal reactor type infrared detector
Technical field
The present invention relates to have the thermal reactor type infrared detector of silicon optical filter or silicon lens.
Background technology
The detected temperatures precision of employed in the past general thermal reactor type infrared detector during for the variation of ambient temperature around improving, by making thermal reactor type infrared detector possess the thermal capacitance that the heating radiator that is made of aluminium, copper etc. increases thermal reactor type infrared detector, for variation of ambient temperature on every side, improve the detected temperatures precision by the temperature variation that suppresses thermal reactor type infrared detector.
In addition, be characterised in that as additive method, possess lid or optical filter that the high density polyethylene by infrared transmitting constitutes in the front of thermal reactor type infrared detector, the insulation effect that utilization is caused by the inner air layer of lid suppresses the temperature variation of thermal reactor type infrared detector, contact with lid that constitutes by high density polyethylene or optical filter by the thermistor that the thermistor used with self the temperature thermometric that carries is possessed in addition and to carry out thermometric, the detected temperatures of thermal reactor type infrared detector is revised.
In the prior art, owing to using metal materials such as the high material of heat conductance, aluminium or copper with the purpose of the thermal capacitance that increases thermal reactor type infrared detector and possess, therefore become the main cause that the cost of thermal reactor type infrared detector rises as heating radiator.
Fig. 3 represents the existing stravismus direction skeleton diagram that possesses the thermal reactor type infrared detector of the heating radiator that is made of aluminium etc.For installing component,, omits in figure owing to becoming miscellaneous.Fig. 4 represents internal cross section structure skeleton diagram.
Detected temperatures precision when improving the variation of ambient temperature around the thermal reactor type infrared detector, the metal heating radiator that is made of aluminium or copper that utilizes thermal reactor type infrared detector to possess increases thermal capacitance, use the high metal material of heat conductance, thereby the temperature variation that suppresses thermal reactor type infrared detector self, and the temperature inequality of inhibition thermal reactor type infrared detector self, carry out as countermeasure with this.
Yet, the metal heating radiator that constitutes by aluminium or copper since material from high as heat conductance and have scarcity value metal, need implement to process and will append the operability of packing into that is used to carry at thermal reactor type infrared detector according to the purpose shape, therefore cause the cost of thermal reactor type infrared detector self to rise.
On the other hand, Fig. 5 represents existing high density polyethylene system lid and the thermometric skeleton diagram of the thermal reactor type infrared detector of thermistor mounting type.
In this technology,, therefore also cause the cost rising of thermal reactor type infrared detector self owing to thermometric need be set in addition with thermistor and will append the operability of packing into that is used to be arranged on thermal reactor type infrared detector.
Summary of the invention
The detected temperatures precision of the present invention when improving the variation of ambient temperature around the thermal reactor type infrared detector, abolished the thermometric structure in the thermistor of the setting of the metal heating radiator that constitutes by aluminium or copper and lid that constitutes by the high density polyethylene of infrared transmitting or optical filter, and it is characterized in that, store by thermal reactor type infrared detector being used in shell that constitutes by resin or metal and the cover that peristome possesses the silicon optical filter, with the variation of ambient temperature influence of air layer lagging casing outside.And, it is characterized in that the silicon optical filter not only can use and do not have apply the planar silicon optical filter, can also use and append 5 μ m cutting and apply that characteristic, 8~14 μ m band are logical to apply the silicon optical filter that evaporation that characteristic or antireflection evaporation apply characteristic etc. applies characteristic.
The present invention has following effect.
The present invention is in thermal reactor type infrared detector, by possessing the shell and the cover that constitute by resin or metal of storage thermal reactor type infrared detector, and possesses the silicon optical filter in shell aperture portion, the detected temperatures precision in the time of can improving the variation of ambient temperature around the thermal reactor type infrared detector.
And, having appended the silicon optical filter that evaporation applies characteristic by use, in the extraneous interference of the strong visible light energy of upset light, headlight etc. such as sunshine etc., can block.
In addition,, perhaps can eliminate high density polyethylene system lid and thermometric thermistor, can reduce cost by eliminating the metal heating radiator that constitutes by aluminium or copper.
Description of drawings
Fig. 1 is that the front shell aperture portion inboard in the thermal reactor sensor field of view scope of the shell that is made of resin of storage thermal reactor sensor type infra-red ray detection device and cover as the most basic embodiment of the present invention possesses the stravismus direction skeleton diagram that does not have the mode that applies the planar silicon optical filter.
Fig. 2 is the internal structure cut-open view of Fig. 1.
Fig. 3 is the stravismus direction skeleton diagram of the thermal reactor sensor type infra-red ray detection device of existing heating radiator mounting type.
Fig. 4 is the internal structure cut-open view of Fig. 3.
Fig. 5 is the existing stravismus direction skeleton diagram that possesses the thermal reactor sensor type infra-red ray detection device of high density polyethylene system lid and thermometric usefulness thermistor.
Fig. 6 is the stravismus direction skeleton diagram that possesses the mode of not having coating planar silicon optical filter in the shell aperture portion outside as other embodiment of the present invention.
Fig. 7 is the internal structure skeleton diagram of Fig. 6.
Fig. 8 is the pattern skeleton diagram that the surveyed area of the institute's projection in the thermal-stacking infrared monitor distributes.
Fig. 9 possesses the caused infrared ray refraction of optically flat filter skeleton diagram.
Temperature when Figure 10 is variation of ambient temperature is followed the tracks of and is confirmed curve.
Among the figure:
The 1-resin enclosure, 2-resin cover, 3-resin enclosure peristome, 4-does not have the planar silicon of coating optical filter, and the 5-epoxy is a bonding agent, and 6-does not have the plano-convex of coating silicon lens, 7-metal CAN shell, the 8-end plate, 9-thermal reactor chip, 10-lead-in wire, the 11-PCB substrate, the 12-connector, the heat insulation layer that 13-is formed by air, 14-metallic heating radiator, 15-high density polyethylene system lid, 16-thermometric thermistor, the thermal reactor type infrared detector that 17-2 detects in the zone, the surveyed area of 18-institute projection, light when 19-does not have optically flat filter, light when 20-has optically flat filter, the detected temperatures curve of the thermal reactor sensor type infra-red ray detection device that 21-is general, 22-have been implemented the detected temperatures curve of the thermal reactor sensor type infra-red ray detection device of embodiment 1
Embodiment
The present invention is in the thermal reactor type infrared detector that possesses silicon optical filter or silicon plano-convex lens, the thermal reactor type infrared detector of following shape is provided, and promptly the front openings portion in the thermal reactor sensor field of view scope of the shell that is made of resin or metal of storage thermal reactor type infrared detector and cover possesses the silicon optical filter.As thermal reactor type infrared detector, expression stravismus direction skeleton diagram in Fig. 1.Expression internal cross section structure skeleton diagram in Fig. 2.
Embodiment 1
Below utilize embodiment to describe the present invention in detail.Fig. 1 is the most basic embodiment of the present invention, and the front shell aperture portion inboard that is illustrated in the thermal reactor sensor field of view scope of the shell that is made of resin of storage thermal reactor sensor type infra-red ray detection device and cover possesses does not have the mode that applies the planar silicon optical filter.Fig. 2 represents internal cross section structure skeleton diagram.
In the present embodiment, use will utilize object view field to stipulate the optical filter or the plano-convex lens that are made of silicon etc. that guides by optical design to the infrared detection zone of the infrared ray amount of incident of hot core sheet, above-mentioned thermal reactor chip is by accepting the infrared radiation amount that infrared ray can the determination object thing and detecting the temperature of object, by with possess and will have the metallic CAN shell of infrared transmitting window, the front portion of the thermal reactor type infrared detector that the end plate of the lead terminal that the thermal reactor chip is electrically connected constitutes for the thermal reactor sensor of the ordinary construction that prevents to make sealing from the environmental change and the electromagnetism obstacle of outside together, utilizing epoxy is that the bonding agent nothing that the infrared ray absorbing rate is low applies optically flat filter and is adhesively fixed on the resin system shell.
And, use the shell and the cover that constitute by resin in the present embodiment, but also can use for example metals such as aluminium, copper, iron.
In addition, used nothing to apply the planar silicon optical filter in the present embodiment, but also can be that for example 5 μ m cutting evaporation coating planar silicon optical filter, 5.5 μ m cutting evaporation coating planar silicon optical filter, 6.5 μ m cutting evaporation apply the planar silicon optical filter, 8~14 μ m are with logical evaporation coating planar silicon optical filter, antireflection evaporation to apply the planar silicon optical filter.
Also have, in the embodiment in figure 1, there is not the square that is shaped as that applies the planar silicon optical filter, but, also can be circle, rectangle, hexagon as long as this is the planar silicon optical filter that does not hinder the optical design of the silicon plano-convex lens that the infrared detection zone that utilizes object view field regulation guides by optical design.
In pack into the occasion of temperature measurement equipment of thermal reactor type infrared detector, usually according to each purposes in that the angle with the regulation of looking into the distance the object face keeps using from the position of determination object face specified altitude.Fig. 8 carries out the pattern skeleton diagram that the surveyed area of projection distributes with being provided with in certain regulation that the position has the infrared detection zone at two places and being provided with the thermal reactor type infrared detectors that 2 zones of carrying out the thermal reactor chip that optical design arranges detect in the position as the surveyed area of institute's projection at desirable infrared detection area test face.
In addition, as thermal reactor type infrared detector, be not only the thermal reactor chips that above-mentioned 2 zones of infrared radiation amount that can the determination object thing and the temperature that detects object are detected, and at the independent type thermal reactor type infrared detector of infrared ray light accepting part with an element, picture is arranged in the infrared ray light accepting part thermal reactor array infra-red ray detection device of the tandem type of wire, the temperature monitoring that the infrared ray light accepting part is arranged in the thermal reactor matrix form infra-red ray detection device of rectangular matrix type has in the multicomponent type thermal reactor type infrared detector of infrared ray light accepting part of 1~16 element like that, also can similarly in the distribution of each surveyed area of projection, possess the selectivity in infrared transmitting zone with the present invention keeping.
Fig. 9 be possess the occasion that do not have to apply the planar silicon optical filter and do not possess each ray plot of occasion.When utilizing the optical design of object view field regulation, need consider not possess in front the optical design of light and the difference of the light that possesses the refraction of not having the occasion that applies the planar silicon optical filter in front of the occasion of optically flat filter.
Figure 10 is the curve map of the detected temperatures of the ambient temperature of the thermal reactor type infrared detector of the mode used in embodiment 1 when changing.
In the comparison of the detected temperatures curve of the thermal reactor type infrared detector before the detected temperatures curve of the thermal reactor type infrared detector of variation of ambient temperature aircraft pursuit course, the temperature curve that is arranged on the thermal source of thermal reactor type infrared detector front, embodiment 1, the enforcement embodiment 1, confirm the raising that has obtained the detected temperatures performance around.This with the comparison of prior art in also to confirm the detected temperatures performance identical.
Embodiment 2
Fig. 6 has carried the figure that does not have the mode that applies the planar silicon optical filter outside the front shell aperture portion of the thermal reactor sensor field of view scope of the shell that is made of resin of embodiment 1 employed storage thermal reactor sensor type infra-red ray detection device and cover.Fig. 7 represents internal cross section structure skeleton diagram.
Also can obtain the infrared transmitting zone same in the present embodiment, and also the detected temperatures curve with the thermal reactor type infrared detector of the embodiment 1 of Figure 10 is identical also to confirm the detected temperatures performance with Fig. 8 of embodiment 1.

Claims (1)

1. thermal reactor type infrared detector, possess silicon optical filter or silicon plano-convex lens, it is characterized in that possessing the low silicon optical filter of infrared ray absorbing rate in the front shell aperture portion of the thermal reactor sensor field of view scope of the shell that constitutes by resin or metal of storage thermal reactor type infrared detector and cover.
CNA2008101795674A 2008-05-13 2008-12-04 Thermal reactor type infrared detector Pending CN101581605A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008125928A JP2009276126A (en) 2008-05-13 2008-05-13 Thermopile infrared detector
JP2008125928 2008-05-13

Publications (1)

Publication Number Publication Date
CN101581605A true CN101581605A (en) 2009-11-18

Family

ID=41363853

Family Applications (2)

Application Number Title Priority Date Filing Date
CNA2008101795674A Pending CN101581605A (en) 2008-05-13 2008-12-04 Thermal reactor type infrared detector
CN2008201767805U Expired - Fee Related CN201425517Y (en) 2008-05-13 2008-12-04 Thermal reactor infrared detection device

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN2008201767805U Expired - Fee Related CN201425517Y (en) 2008-05-13 2008-12-04 Thermal reactor infrared detection device

Country Status (3)

Country Link
JP (1) JP2009276126A (en)
KR (1) KR20090118810A (en)
CN (2) CN101581605A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103403507A (en) * 2011-03-30 2013-11-20 三菱综合材料株式会社 Infrared sensor
CN103575388A (en) * 2012-08-08 2014-02-12 Nec东金株式会社 Infrared sensor
CN104764534A (en) * 2015-03-13 2015-07-08 东莞捷荣技术股份有限公司 Temperature measurement device and method capable of shortening temperature measurement time
CN104764535A (en) * 2015-03-13 2015-07-08 东莞捷荣技术股份有限公司 Temperature measuring device and intelligent milk bottle sleeve
CN104792422A (en) * 2015-03-13 2015-07-22 东莞捷荣技术股份有限公司 Temperature measurement device and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5404548B2 (en) 2010-07-26 2014-02-05 三菱電機株式会社 Air conditioner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0259447U (en) * 1988-10-24 1990-05-01
JP2005195435A (en) * 2004-01-06 2005-07-21 Nippon Ceramic Co Ltd Noncontact type temperature detector

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103403507A (en) * 2011-03-30 2013-11-20 三菱综合材料株式会社 Infrared sensor
CN103403507B (en) * 2011-03-30 2015-12-23 三菱综合材料株式会社 Infrared ray sensor
CN103575388A (en) * 2012-08-08 2014-02-12 Nec东金株式会社 Infrared sensor
CN104764534A (en) * 2015-03-13 2015-07-08 东莞捷荣技术股份有限公司 Temperature measurement device and method capable of shortening temperature measurement time
CN104764535A (en) * 2015-03-13 2015-07-08 东莞捷荣技术股份有限公司 Temperature measuring device and intelligent milk bottle sleeve
CN104792422A (en) * 2015-03-13 2015-07-22 东莞捷荣技术股份有限公司 Temperature measurement device and method
CN104792422B (en) * 2015-03-13 2019-09-10 康凯 A kind of temperature measuring equipment and method

Also Published As

Publication number Publication date
CN201425517Y (en) 2010-03-17
JP2009276126A (en) 2009-11-26
KR20090118810A (en) 2009-11-18

Similar Documents

Publication Publication Date Title
CN201425517Y (en) Thermal reactor infrared detection device
US8366317B2 (en) Sensor for detecting electromagnetic radiation
CN103797345B (en) Infrared sensor
CN104793324B (en) A kind of common aperture catadioptric imaging system of infrared double-waveband
JP5793679B2 (en) Infrared sensor module
JP2010537177A (en) Sensor cap assembly, sensor, circuit
WO2015011338A1 (en) An apparatus for sensing
CN1985158A (en) Sensor element
CN107709943A (en) PIR motion detectors
KR101737400B1 (en) Temperature sensor with thermopile
CN212320923U (en) Infrared temperature measurement sensor device
US3355589A (en) Constant sensitivity differential radiometer
US5017786A (en) V2 O3 protection for IR detector arrays against intense thermal radiation
JP2009041958A (en) Thermopile infrared detector
JPH0458567B2 (en)
CN212967717U (en) Indium antimonide infrared detector
JP2989203B2 (en) Infrared detector
US6817756B2 (en) Method of measuring ambient temperature and a temperature measurement arrangement
CN211347087U (en) Indium-arsenic-antimony infrared detector
KR101180592B1 (en) Integrated Visible and Long Wavelength Infrared Image Detectors
Hecht Photonic frontiers: Room-temperature IR imaging-microbolometer arrays enable uncooled infrared cameras
KR102003224B1 (en) Apparatus for measuring temperature of glass transmission type and induction range having the same
JP6682357B2 (en) Heat sensor
CN201425518Y (en) Thermopile infrared detecting device
CN213148114U (en) Light absorption cover plate of infrared thermometer and infrared thermometer with light absorption cover plate

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20091118