CN2663956Y - Thermoelectric refrigeration type infrared detector assembly - Google Patents
Thermoelectric refrigeration type infrared detector assembly Download PDFInfo
- Publication number
- CN2663956Y CN2663956Y CN 200320122771 CN200320122771U CN2663956Y CN 2663956 Y CN2663956 Y CN 2663956Y CN 200320122771 CN200320122771 CN 200320122771 CN 200320122771 U CN200320122771 U CN 200320122771U CN 2663956 Y CN2663956 Y CN 2663956Y
- Authority
- CN
- China
- Prior art keywords
- thermoelectric cooling
- infrared
- temperature controller
- detector
- infrared eye
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A thermoelectric refrigeration type infrared detector assembly comprises an assembly outer casing, an infrared detector, a lens, an optical filter, a temperature controller and a preamplifier. The utility model is characterized in that: the components are all integrated inside an assembly casing; meanwhile, the utility model integrates the functions such as wave band selection, temperature control and signal amplification. The infrared detector outputs weak voltage signal and the low noise preamplifier and detector are of short distance connection and are arranged inside a metal cylindrical casing, thereby reducing various external influences on the detector and increasing detecting efficiency; moreover, temperature control circuit is designed as continuous control mode, thereby having no switching noise and less current fluctuation and substantially reducing interference on detector; in addition, the utility model brings convenience to development of various infrared instruments, thereby being a practical infrared head assembly.
Description
Technical field
The utility model relates to infrared detective, specifically is meant to have band selection, and temperature control, functions such as weak signal amplification are in the thermoelectric cooling type infrared detector module of one.
Background technology
Unit of Xiao Shouing or multielement infrared detector are mostly by detector chip and avoid the infrared window of other interference of stray light to form in the market.And when reality was used, infrared eye often need be worked under certain temperature condition, also will mix suitable optics, also the weak signal that records will be amplified etc.These generally are equipped with by user oneself, bring inconvenience to the user like this.
Summary of the invention
Based on the inconvenience that existing infrared eye existence is used, the purpose of this utility model provides a kind of thermoelectric cooling type infrared detector module that integrates functions such as band selection, temperature control and signal amplification.
Infrared detector module of the present utility model comprises package shell, infrared eye, lens, optical filter, temperature controller and prime amplifier.The package shell head has the lens drum of adjustable lens focal length of band lens, and the infrared eye of a band wave band optical filter window is arranged below the lens drum, and lens drum and infrared eye are put on same axle.Infrared eye is put on the huyashi-chuuka (cold chinese-style noodles) of thermoelectric cooling module, measures the thermistor of infrared eye working temperature on the huyashi-chuuka (cold chinese-style noodles) in addition.Thermoelectric cooling module is put on heating radiator, and the hot side of thermoelectric cooling module contacts with radiator heat.Prime amplifier and temperature controller are arranged below heating radiator.Infrared eye, thermoelectric cooling module, heating radiator, prime amplifier and temperature controller are fixed in the assembly housing successively.The signal of infrared eye is imported prime amplifier by lead, and thermistor connects with temperature controller by lead.The package shell afterbody has one to be used for the multi-pin connector of output of prime amplifier signal and the input of temperature controller power supply, thereby constitutes integrated infrared detector module.
The beneficial effects of the utility model are: light, mechanical, electrical incorporate infrared detector module has multi-functional, miniaturization.Because infrared eye output is a kind of weak voltage signal, low-noise preamplifier closely is connected with detector, and in same metallic cylinder housing, has reduced the influence of outside various interference to detector, has improved detection efficiency.In addition, this temperature control circuit is designed to the stepless control mode, no switching noise, and electrical current fluctuations is less, and to the also obviously minimizing of interference of detector, this detector assembly provides convenience for all kinds of infrared gears of development, is the infrared head assembly of a practicality.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a temperature controller electrical schematic diagram of the present utility model;
Fig. 3 is a prime amplifier electrical schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
See Fig. 1, infrared detector module comprises: package shell 1, infrared eye 2, lens drum 3, optical filter 4, temperature controller 5 and prime amplifier 6.Package shell 1 head has the lens drum 3 of the adjustable lens focal length of band lens 301, and the purpose of focusing lens tube 3 is convenient in order to adorn the school assembly, and incident optical energy is focused on the chip of detector.The infrared eye 2 that one band wave band optical filter 4 is arranged below the lens drum, lens drum, wave band optical filter 4 and infrared eye must be on same axles.Infrared eye is put on the huyashi-chuuka (cold chinese-style noodles) 701 of thermoelectric cooling module 7, measures the thermistor 8 of infrared eye working temperature on the huyashi-chuuka (cold chinese-style noodles) in addition.Thermoelectric cooling module is put on heating radiator 9, the hot side 702 and heating radiator 9 thermo-contacts of thermoelectric cooling module.Prime amplifier 6 and temperature controller 5 are arranged below heating radiator.The signal of infrared eye 2 is by lead input prime amplifier 6, and thermistor 8 connects with temperature controller 5 by lead.Package shell 1 afterbody has one to be used for the multi-pin connector 10 that the prime amplifier signal is exported and the temperature controller power supply is imported.
Said temperature controller 5 is a temperature control circuit board, see Fig. 2, by R1, R2, Rt, Rw forms a resistance bridge, resistance R 1, Rw constitutes an arm of bridge circuit, R2, Rt constitutes another arm of bridge circuit, wherein Rt is the thermistor 8 that places on the refrigerator huyashi-chuuka (cold chinese-style noodles), and Rw is a temperature setting resistor, two arm voltages of bridge circuit input to operational amplifier A-, + input end, Rf is the feedback resistance of amplifier, select the size of feedback resistance, be used to reduce the switching effect of electric current, electric current is maintained near the temperature control point, avoided the interference of temperature control current to infrared small-signal, amplifier output meets transistor Q, and refrigerator is serially connected on the emitter of transistor Q, and RL is a current-limiting resistance.This temperature control circuit is designed to the stepless control mode, no switching noise, semiconductor cooler is a kind of current-mode control device, when not reaching temperature spot, Control current increases gradually, near temperature spot the time, electric current reduces gradually, until a basic controlling electric current is arranged near temperature control point, electrical current fluctuations is less, to the also obviously minimizing of interference of detector.
Said prime amplifier 6 is the pre-amplification circuit plate, sees Fig. 3, and wherein A1, A2 are operational amplifier, A1 (LT1028) and R2, R3, R4, C2, C3 constitute the input stage of prime amplifier, wherein, gain is by the decision of R3/R4 ratio, and high and low end frequency is determined by C2, C3 respectively.Half of double operational A2 (TL082) amplified in the middle of doing, and its gain is by (R5+R6)/R7 decision, and second half follows output.Resistance R 1, R*, C1 form the bias current of current source for detector, and R* should be greater than 3 times of detector resistance here.
Claims (2)
1. a thermoelectric cooling type infrared detector module comprises: package shell (1), infrared eye (2), lens drum (3), wave band optical filter (4), temperature controller (5) and prime amplifier (6); It is characterized in that:
Package shell (1) head has the lens drum (3) of the adjustable lens focal length of band lens (301), the infrared eye (2) that one band wave band optical filter (4) is arranged below the lens drum, lens drum (3), wave band optical filter (4) and infrared eye (2) are on same axle; Infrared eye is put on the huyashi-chuuka (cold chinese-style noodles) of thermoelectric cooling module (7) (701), measures the thermistor (8) of infrared eye working temperature on the huyashi-chuuka (cold chinese-style noodles) in addition; Thermoelectric cooling module (7) is put on heating radiator (9), hot side of thermoelectric cooling module (702) and heating radiator (9) thermo-contact; Prime amplifier (6) and temperature controller (5) are arranged below heating radiator; Infrared eye (2), thermoelectric cooling module (7), heating radiator (9), prime amplifier (6) and temperature controller (5) are fixed in the assembly housing (1) successively; The output signal of infrared eye (2) is imported prime amplifier (6) by lead, and thermistor (8) connects with temperature controller (5) by lead; Package shell (1) afterbody has one to be used for the multi-pin connector (10) that the prime amplifier signal is exported and the temperature controller power supply is imported.
2. according to a kind of thermoelectric cooling type infrared detector module of claim 1, it is characterized in that: said temperature controller (5) is temperature control circuit board, it is by R1, R2, Rt, Rw forms a resistance bridge, resistance R 1, Rw constitutes an arm of bridge circuit, R2, Rt constitutes another arm of bridge circuit, wherein Rt is the thermistor (8) that places on the thermoelectric cooling module huyashi-chuuka (cold chinese-style noodles), Rw is a temperature setting resistor, two arm voltages of bridge circuit input to operational amplifier A-, + input end, Rf is the feedback resistance of amplifier, amplifier output meets transistor Q, and thermoelectric cooling module is serially connected on the emitter of transistor Q, and RL is a current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122771 CN2663956Y (en) | 2003-12-24 | 2003-12-24 | Thermoelectric refrigeration type infrared detector assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122771 CN2663956Y (en) | 2003-12-24 | 2003-12-24 | Thermoelectric refrigeration type infrared detector assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663956Y true CN2663956Y (en) | 2004-12-15 |
Family
ID=34348697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320122771 Expired - Fee Related CN2663956Y (en) | 2003-12-24 | 2003-12-24 | Thermoelectric refrigeration type infrared detector assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663956Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103205A (en) * | 2011-01-27 | 2011-06-22 | 王小刚 | Receiving device in-built with integrated long range and short range infrared anticollision radar system |
| CN102661801A (en) * | 2012-06-06 | 2012-09-12 | 华中科技大学 | Super-resolution thermal infrared imager and method for acquiring high-resolution infrared image |
| CN109238471A (en) * | 2018-11-28 | 2019-01-18 | 北京遥感设备研究所 | A kind of veiling glare removing method of uncooled ir system |
| CN109374138A (en) * | 2018-09-18 | 2019-02-22 | 北京遥感设备研究所 | A kind of infrared imaging circuit and noise-reduction method |
| CN111486959A (en) * | 2020-03-27 | 2020-08-04 | 安徽西玛科光电科技有限公司 | High-precision infrared thermometer |
-
2003
- 2003-12-24 CN CN 200320122771 patent/CN2663956Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103205A (en) * | 2011-01-27 | 2011-06-22 | 王小刚 | Receiving device in-built with integrated long range and short range infrared anticollision radar system |
| CN102661801A (en) * | 2012-06-06 | 2012-09-12 | 华中科技大学 | Super-resolution thermal infrared imager and method for acquiring high-resolution infrared image |
| CN109374138A (en) * | 2018-09-18 | 2019-02-22 | 北京遥感设备研究所 | A kind of infrared imaging circuit and noise-reduction method |
| CN109238471A (en) * | 2018-11-28 | 2019-01-18 | 北京遥感设备研究所 | A kind of veiling glare removing method of uncooled ir system |
| CN111486959A (en) * | 2020-03-27 | 2020-08-04 | 安徽西玛科光电科技有限公司 | High-precision infrared thermometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2663956Y (en) | Thermoelectric refrigeration type infrared detector assembly | |
| CN109373630B (en) | Large-temperature-difference small-sized refrigerating device for image detector | |
| US20110160931A1 (en) | Temperature control circuit | |
| KR19990028179A (en) | Super-type infrared detector | |
| CN102778906A (en) | Dual-stage thermostatical control semiconductor laser | |
| CN101465113A (en) | Eyesight protecting device | |
| CN105786047A (en) | Semiconductor laser temperature control system based on TEC | |
| CN204808071U (en) | No surge semiconductor laser temperature control system based on H bridge circuit | |
| CN107484293B (en) | Great power LED attenuation compensation integrated circuit | |
| CN212112252U (en) | Laser temperature control circuit based on nationwide production device | |
| JP2004207666A (en) | Laser-diode module, laser-diode apparatus, and optical transmitter | |
| CN209147490U (en) | A kind of high-voltage driving circuit of semiconductor cooler | |
| CN108287020B (en) | Photoelectric detection module based on avalanche photodetector | |
| CN205665597U (en) | Semiconductor laser temperature control system based on TEC | |
| CN216796502U (en) | Electronic cigarette integrated circuit with temperature control function | |
| CN217936030U (en) | Low-power feedback type light source control module | |
| US7443151B2 (en) | Fan speed controlling circuit | |
| CN114264646B (en) | Device and method for detecting NO by using photodiode with temperature compensation | |
| CN105630060A (en) | LED driving chip and over-temperature protection point adjusting unit thereof | |
| CN111679704B (en) | Temperature control method based on TEC | |
| CN113805288A (en) | Light receiving TO with light amplification function | |
| CN210298137U (en) | LED lamp control system | |
| CN208984223U (en) | A kind of Dim light measurement device | |
| CN106875666A (en) | A kind of infrared signal detects circuit | |
| CN102394609A (en) | Spike pulse voltage amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |