CN2876739Y - Scanning type infrared temp. measurer - Google Patents
Scanning type infrared temp. measurer Download PDFInfo
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- CN2876739Y CN2876739Y CN 200620028134 CN200620028134U CN2876739Y CN 2876739 Y CN2876739 Y CN 2876739Y CN 200620028134 CN200620028134 CN 200620028134 CN 200620028134 U CN200620028134 U CN 200620028134U CN 2876739 Y CN2876739 Y CN 2876739Y
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- infrared
- temperature
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- input end
- totalizer
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Abstract
A scanning type infrared temp. measurer relates to the application of infra-red art. The technological puzzle to be resolved is to provide a scanner infrared radiation thermometer. Technological plans include a rotatory polyhedral reflector, a driving motor, an infrared optical collector, a photo-detector, a preamplifier, a band-pass filter, a main amplifier, a temperature sensor, an adder, a linear quantizer, a transition card and a computer. The shafts of the driving motor pass the center of the rotatory polyhedral reflector, with strength joint. The optic axis of the infrared optical collector passes the center of the reflecting surface of the rotatory polyhedral reflector. The receiving surface of the photo-detector is placed on the focal surface of the infrared optical collector. After receiving optical signal, optical signal is changed into electric signal, which is displayed by computer after its subsequent circuit treatment. Scanning optics widens the whole field of view of detection, which can realize continuous temperature surveillance of the measuring subject from edge to edge, with high noise-signal ratio, and which can display the distribution of whole temperature of the measuring object.
Description
One, technical field
The utility model belongs to a kind of scan-type infrared thermometer that relates in the infrared technique application.
Two, technical background
In commercial production, usually need the temperature of some object is measured monitoring, so that intact implementing process flow process guarantees product quality.For example: in the optical glass fusion process, need measure monitoring to temperature of smelting furnace, optical glass for a certain trade mark, by technological process, temperature of smelting furnace rises to the temperature range of regulation, and keeps the regular hour, it just can eliminate the bubble in the melting glass, eliminate stress, homogeneity improves, so that cast.And for example: the blast furnace of smelting metal, also need the temperature of smelting furnace is measured monitoring, when certain metal of melting, need only the temperature range that temperature of smelting furnace rises to regulation by technological process, in the liquid of smelting metal and filling material thereof, various chemical elements just can reach intact chemical bond, could guarantee the quality of product after the casting, and the physical and chemical performance of metal could satisfy industrial application requirements.For another example: in the cement baking process, the surface temperature of converter is uneven permanent, or too high, causes the fracture of converter housing easily, and therefore, the converter temperature to cement baking also needs to measure monitoring.In a word, in industrial processes,, a lot of technical fields is arranged, relevant object is all needed thermometric or real-time temperature monitoring in order to ensure product quality and production safety.Here it is develops the purpose of object temperature measurer.
In existing temperature measurer, majority is a temperature measurer, the temperature of demarcating object by the temperature of certain point of Measuring Object, its theory structure is as shown in Figure 1: comprise infrared condenser 1, photodetector 2, prime amplifier 3, bandpass filter 4, temperature detector 5, main amplifier 6, totalizer 7, linearizer 8, A/D converter 9, digital indicator 10.
The subject matter that this temperature measurer exists is: be subjected to the restriction of infrared condenser and photodetector, it is smaller to receive testee radiation field angle, the temperature that can only demarcate object by certain any temperature on the testee, the temperature value that obtains can not embody the Temperature Distribution of object, the signal to noise ratio (S/N ratio) of temperature measurer is low, poor anti jamming capability.
Three, summary of the invention
In order to overcome the defective that prior art exists, the purpose of this utility model is to enlarge the field range that temperature measurer receives, to the whole continuous sweep of testee realization edge-to-edge, embody the Temperature Distribution of whole testee, a kind of scan-type infrared thermometer of ad hoc meter.
The technical problems to be solved in the utility model is: a kind of scan-type infrared thermometer is provided.The technical scheme of technical solution problem is as shown in Figure 2: comprise reflecting rotating multisurface mirror 11, drive motor 12, infrared condenser 13, photodetector 14., prime amplifier 15, bandpass filter 16, main amplifier 17, temperature detector 18, totalizer 19, linearizer 20, transition card 21, computing machine 22.
The axle of drive motor 12 is by the center of rotating multisurface body catoptron 11, both are connected, 11 rotations of drive motor 12 driven rotary facetted mirrors mirrors, the reflecting surface of rotating multisurface body catoptron 11 is towards testee, the optical axis of infrared condenser 13 is by the reflecting surface center of rotating multisurface body catoptron 11, the receiving plane of photodetector 14 places on the focal plane of infrared condenser 13, the output terminal of photodetector 14 is connected with the input end of prime amplifier 15, the output terminal of prime amplifier 15 is connected with the input end of bandpass filter 16, the output terminal of bandpass filter 16 is connected with the input end of main amplifier 17, and the output terminal of main amplifier 17 is connected with the input end of totalizer 19; Photodetector 14 receives infrared signal that infrared condenser 13 focuses on to be changed electric signal later on into and sends prime amplifier 15 to and be amplified to certain spoke value, flow to bandpass filter 16 and carry out flowing to main amplifier 17 behind the filtering and noise reduction and amplify, amplifying signal is flowed to totalizer 19; Meanwhile, the output terminal of temperature detector 18 is connected with the input end of totalizer 19; Temperature detector 18 is sensed environment temperature, and is transferred to totalizer 19 as temperature compensation signal after converting electric signal to; The output terminal of totalizer 19 links to each other with the input end of linearizer 20, and the output terminal of linearizer 20 is connected with the input end of transition card 21, and the output terminal of transition card 21 is connected with computing machine 22.Pass to linearizer 20 behind the signal plus of totalizer 19 with main amplifier 17 and temperature detector 18 and carry out linearization process, send transition card 21 again to and convert digital signal to and send Computer Processing to, show.
The principle of work explanation: this temperature measurer is a kind of passive type infrared detection system, and the infrared radiation that its reception testee is constantly launched records temperature.The heat radiation theory points out, any object is not as long as its temperature is an absolute zero, emitting infrared radiations constantly all, and the radiation power that emits is by formula: W=ε σ T
4Expression, ε is the emissivity of object in the formula, and σ is this special fence constant, and T is the absolute temperature of object.Radiation power is by the decision of the temperature of object, and the heat radiation power of object is surveyed by the reception to object radiation power because of the difference of its temperature difference to some extent, just can obtain the absolute temperature T of object.
The field angle of scanning optics is big, sweep limit is wide, in the scanning process can with testee from edge-to-edge each moment the visual field infrared radiation receive, be transferred to infrared photoelectric detector, infrared photoelectric detector is exported the electric signal that the infrared radiation signal that receives converts easy measurement to, and through amplifying, filtering and noise reduction is given computing machine, machine is handled the temperature calculate each visual field moment as calculated, thereby has realized the temperature survey of whole testee is followed the tracks of.
Good effect of the present utility model: scanning optics is widened whole detection viewing field, can realize that the signal to noise ratio (S/N ratio) height embodies testee bulk temperature distribution situation, the reliability height to the continuous temperature supervision of Measuring Object from edge-to-edge.
Four, description of drawings
Fig. 1 is the structural principle synoptic diagram of prior art point temperature measurer
Fig. 2 is the structural representation of the utility model scan-type infrared thermometer.
Five, embodiment
The utility model is implemented by structure shown in Figure 2, and wherein, rotating multisurface body catoptron 12 adopts optical glass to make, and regular hexagon cylinder body, each cylinder reflecting surface can carry out the high reflectance reflection to infrared radiation all through polishing plating high reflection film.
Drive motor 12 adopts SUNON DP201AT model motor, optical glass is adopted in the substrate of infrared condenser 13, the polishing final vacuum is coated with the film of infrared ray high permeability etc., photodetector 14 adopts infrared radiation is received responsive PbS phototriode, prime amplifier 15 adopts LI-75A electric current input prime amplifier, bandpass filter 16 adopts Datong District special steel company to produce small-sized UWB bandpass filter, main amplifier 17 employing models are 7008 linear power amplifier, temperature detector 18 adopts the LM35DT temperature sensor, totalizer 19 adopts the embedded adder circuit of Stratix II, linearizer 20 adopts bridge-type excitation linear circuit PGA309, transition card 21 adopts USB A/D transition card, and computing machine 22 adopts the computing machine of Pentium 4 processor.
Claims (1)
1, a kind of scan-type infrared thermometer, comprise: infrared condenser, photodetector, prime amplifier, bandpass filter, temperature detector, totalizer, linearizer is characterized in that also comprising: rotating multisurface body catoptron (11), drive motor (12), main amplifier (17), transition card (21), computing machine (22); The axle of drive motor (12) is by the center of rotating multisurface body catoptron (11), both are connected, the reflecting surface of rotating multisurface body catoptron (11) is towards testee, the optical axis of infrared condenser (13) is by the reflecting surface center of rotating multisurface body catoptron (11), the receiving plane of photodetector (14) places on the focal plane of infrared condenser (13), the output terminal of photodetector (14) is connected with the input end of prime amplifier (15), the output terminal of prime amplifier (15) is connected with the input end of bandpass filter (16), the output terminal of bandpass filter (16) is connected with the input end of main amplifier (17), and the output terminal of main amplifier (17) is connected with the input end of totalizer (19); Meanwhile, the output terminal of temperature detector (18) is connected with the input end of totalizer (19); The output terminal of totalizer (19) links to each other with the input end of linearizer (20), and the output terminal of linearizer (20) is connected with the input end of transition card (21), and the output terminal of transition card (21) is connected with computing machine (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620028134 CN2876739Y (en) | 2006-01-12 | 2006-01-12 | Scanning type infrared temp. measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620028134 CN2876739Y (en) | 2006-01-12 | 2006-01-12 | Scanning type infrared temp. measurer |
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| Publication Number | Publication Date |
|---|---|
| CN2876739Y true CN2876739Y (en) | 2007-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620028134 Expired - Fee Related CN2876739Y (en) | 2006-01-12 | 2006-01-12 | Scanning type infrared temp. measurer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338875A (en) * | 2010-07-16 | 2012-02-01 | 李少勤 | Multi-spectral scanning foresight anti-collision laser radar device and application thereof |
| CN102890069A (en) * | 2011-07-18 | 2013-01-23 | 通用电气公司 | Gas sensor, analyzer and method for measuring oxygen concentration of a respiratory gas |
| CN105241579A (en) * | 2015-08-18 | 2016-01-13 | 中国人民解放军装甲兵工程学院 | Anti-recoil device temperature automatic measuring instrument and control method thereof |
| CN108226952A (en) * | 2017-12-13 | 2018-06-29 | 宁波傲视智绘光电科技有限公司 | A kind of laser scanning imaging system |
| CN111854969A (en) * | 2020-08-03 | 2020-10-30 | 洛阳万基铝加工有限公司 | Double-emissivity infrared thermometer and temperature measurement implementation method |
-
2006
- 2006-01-12 CN CN 200620028134 patent/CN2876739Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338875A (en) * | 2010-07-16 | 2012-02-01 | 李少勤 | Multi-spectral scanning foresight anti-collision laser radar device and application thereof |
| CN102338875B (en) * | 2010-07-16 | 2013-12-04 | 李少勤 | Multi-spectral scanning foresight anti-collision laser radar device and application thereof |
| CN102890069A (en) * | 2011-07-18 | 2013-01-23 | 通用电气公司 | Gas sensor, analyzer and method for measuring oxygen concentration of a respiratory gas |
| CN105241579A (en) * | 2015-08-18 | 2016-01-13 | 中国人民解放军装甲兵工程学院 | Anti-recoil device temperature automatic measuring instrument and control method thereof |
| CN105241579B (en) * | 2015-08-18 | 2017-09-29 | 中国人民解放军装甲兵工程学院 | A kind of recoil mechanism temperature automatic measuring instrument and its control method |
| CN108226952A (en) * | 2017-12-13 | 2018-06-29 | 宁波傲视智绘光电科技有限公司 | A kind of laser scanning imaging system |
| CN111854969A (en) * | 2020-08-03 | 2020-10-30 | 洛阳万基铝加工有限公司 | Double-emissivity infrared thermometer and temperature measurement implementation method |
| CN111854969B (en) * | 2020-08-03 | 2023-12-15 | 洛阳万基铝加工有限公司 | Dual-emissivity infrared thermometer and temperature measurement implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070307 |