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1.
中远红外线与人体内的大分子核酸、蛋白质的电子激发态能量的频率较近,产生的生物效应也较短波红外辐射强,因此,常应用于医学和生物学中。中远红外线可由特制的“中远红外辐射元件”产生。在医学和生物学中应用的中远红外仪器主要有两种形式:一种是由电阻丝绕在或嵌在耐火材料、碳化硅等物质制成的棒或圆板上构成;另一一种目前应用比较广的“特定电磁波治疗仪”,简称“TDP”。它是用涂有多种微量金属元素的辐射板而构成,并用电阻丝加  相似文献   

2.
远红外辐射加热技术节能原理与应用   总被引:7,自引:0,他引:7  
胡亚范 《红外技术》2002,24(5):58-59,62
阐述了远红外辐射加热技术的特点,论述了远红外辐射节涂料的使用可以提高受热面辐射率,强化辐射传热,从而可以实现节能目的的原理。结合大庆油田的应用实际,指明了远红外辐射节能涂料的广阔应用前景。  相似文献   

3.
光泵远红外激光器是远红外谱区的重要辐射源。在GaAs肖特基势垒二极管(SBD)外差混频远红外接收实验中,光泵远红外激光器作为信号源或本振源而得到应用。远红外激光与各种接收系统(例如SBD混频接收系统、准光学接收系统)的输入耦合,都与远红外激光辐射的场分布(模式)、输出功率以及偏振等辐射特性有密切关系。因此,远红外激光辐射特性的测量显得十分重要。  相似文献   

4.
全书共分六章,分别阐述红外辐射的基础理论和应用理论、远红外辐射材料和器件、远红外烘炉设计、远红外辐射加热实例,书末附有大量参考数据和光谱图。本书可供从事红外辐射加热的科技人员参考。  相似文献   

5.
题目名称期数页数题目名称期数页数 综述铅盆探测器1红外成象和遥感技术新趋势2英国发展热成象技术的途径2掩CdTe:迅速发展的军用材料2红外热成象啼福汞多元探测器发展现状及我们的对策3热传感仪器4红外光纤发展概况5西方国家热成象术的发展概况4西方国家热成象技术的发展概况(续)5的红外寻的头红外加热讨论,.丹」,翻2nUS比U工勺一b一b远红外干操木材与“正热源”红外技术在酿酒工业上的新应用略谈电热远红外木材烘烤炉设计‘户的几个间题远红外食品烤炉电热元件表面温度与辐射特性的选择用远红外技术供烤玻璃器皿烤花国内红外加热元件生…  相似文献   

6.
远红外加热是辐射加热,但又不是一般的辐射加热,两者区别在于,远红外加热关心的是辐射与吸收间良好的匹配,而一般辐  相似文献   

7.
如何提高远红外元件的辐射强度,且使远红外元件主辐射频率与物体分子的固有频率尽可能相一致,这是应用远红外技术进行热处理的关键。但元件辐射强度与主辐射频率均与元件表面温度有关。电热元件辐射需要一定的能量,这就需要元件具有一定的温度。电热元件辐射的能量与电热元件温度的四次方成正比,即辐射元件表面温度降低一倍,总辐射能量就要减少十六倍。由此可见,电热元件表面温度对远红外炉的作用影响极大。远红外炉在达到预定炉温后断开电源,此时因电热元件温度远高于炉膛温度,元件表面温度将迅速地趋向于  相似文献   

8.
引言众所周知,任何物质,只要温度不是绝对零度,都能发射红外辐射。红外辐射是指波长在0.76~1000微米的热辐射,远红外一般是指波长为40~1000微米的辐射。早在1900年,就已开始了远红外的探索,但在相当长的时期内发展比较缓慢。本世纪六十年代以后,由于低温技术的发展,各种远红外探测器及各种远红外辐射源的发  相似文献   

9.
〔1〕〔2〕〔3〕远红外干燥加热浅谈、远红外简易辐射测试、远红外用转物资烘房、远红外烘布机,上棉十七厂科研室直热式硅钢带红外辐射器元件在消防器材加热工艺上的应用,湖南省长沙消防器材厂,刘洪志直热式硅钢带红外辐射器元件的研究,湖南省长沙消防器材厂,刘洪志低温硅碳棒及其在食品烘烤炉上的应用,洛阳市食品工业公司,樊树德远红外加热技术在油漆干燥中的应用,安阳自行车二厂,赵福林高很远红外辐射涂料在金属热处理电阻炉上的应用,广州光学应用研究所,孙荣凯论红外加热技术,上海硅酸盐研究所,夏继余王正深胡仲寅陈文通远红外辐射加热的…  相似文献   

10.
远红外辐射材料在医学上的应用   总被引:3,自引:0,他引:3  
李波  王宪明 《红外技术》2003,25(6):86-86
当前用于加热目的的远红外辐射材料 (辐射体或涂料 ) ,主要是SiC金属氧化物、硫化物、硼化物和硒化物等构成 ,由于这些材料存在极强的极性振动 ,在远红外光谱区表现为极强的振动吸收峰 (带 ) ,因此决定了远红外辐射材料的高辐射特性。人体是一个天然的辐射源 ,人体的红外吸收受  相似文献   

11.
本文先探究3种材料的远红外辐照特性以及质量、辐照面积以及金属对远红外辐照的影响,再以点状远红外发射源为研究对象,研究了点状远红外发射源的不同影响因素及其功率密度分布规律.结果表明:远红外烧结材料的功率密度最高,陶瓷材料次之,玻璃材料最低,并确定了远红外材料功率密度的影响因素有质量、辐照面积以及金属外罩;点状远红外发射源...  相似文献   

12.
远红外织物的保健作用探析   总被引:6,自引:0,他引:6  
张兴祥  段谨源 《红外技术》1994,16(6):27-30,21
远红外织物是近年来开发出的一种新型保温材料,它不但可以吸收外界能量而使自身的温度升高,而且可以高效发射出远红外线,同时还具有抑菌作用。本文在对红外辐射的理疗作用进行分析的基础上,从理论上讨论了远红外织物的保健作用。  相似文献   

13.
A far-infrared laser cavity designed to favor short-wavelength laser lines was used to generate optically-pumped far-infrared laser radiation. New far-infrared laser lines were discovered in hydrazine, heavy water, ammonia, and several short-wavelength lines previously discovered in methanol were observed. Wavelength, frequency, and relative intensity measurements were performed on laser lines in the wavelength range 42.4 to 253.7 μm. Each far-infrared frequency measurement was obtained by mixing the far-infrared radiation with radiation from two reference CO2 lasers and from a microwave synthesizer in a metal-insulator-metal diode. The pump laser was a high-Q Fabry Perot resonator oscillating on 275 grating-selected laser lines including regular, sequence, and hot band lines.  相似文献   

14.
We report a novel far-infrared radiation induced photoresponse of quasi two-dimensional space-charge layers on GaAs and Si in quantizing magnetic fields. In gated AlAs---GaAs heterojunctions and in metal-oxide-silicon field-effect transistors significant changes of the gate potential are observed around even Landau level filling factors, whenever radiation of a far-infrared molecular laser is absorbed at cyclotron resonance by inversion electrons. The photosignal can be understood as reflecting the difference in the inversion electron chemical potentials at two different electron temperatures. On GaAs with far-infrared laser intensities in the regime below 1mW/cm2 electron temperatures are obtained that exceed the lattice temperature by up to 10K, whereas on Si at comparable conditions changes in the electron temperature are about 2 orders of magnitude smaller.  相似文献   

15.
Generation and coherent electro-optic detection of far-infrared and mid-infrared radiation enable new capabilities compared to photoconductive detection techniques  相似文献   

16.
We have reinvestigated CHD/sub 2/OH and CH/sub 2/DOH methanol isotopomers as sources of far-infrared laser radiation using the optical pumping technique. A new waveguide pulsed CO/sub 2/ laser was used, that delivers high peak powers also in the 10-HP CO/sub 2/ band and has allowed us to observe 19 new far-infrared emissions from CHD/sub 2/OH and 8 new far-infrared emissions from CH/sub 2/DOH. Each of them is characterized in wavelength, pump offset from the center of the exciting CO/sub 2/ line, relative polarization, optimum operating pressure and intensity.  相似文献   

17.
We have used our new pulsed ${hbox {CO}}_{2}$ laser, operating both on regular and hot bands, to excite the $^{13}{hbox {CD}}_{3}{hbox {OH}}$ methanol isotopomer. This has lead to the observation of 13 new high-threshold far-infrared laser emissions (also identified as terahertz laser lines), with frequencies in the range between 24.11 and 102.56 cm$^{-1}$ (0.72–3.07 THz). The absorption transitions leading to these new FIR laser emissions have been located by observing the optoacoustic absorption spectra around the ${hbox {CO}}_{2}$ emissions. Here, we present these new far-infrared laser lines, characterized in wavelength, polarization, offset relative to the center of the pumping ${hbox {CO}}_{2}$ laser transition, relative intensity, and optimum operation pressure.   相似文献   

18.
Characteristics of metal-insulator-metal (MIM) diodes which are used as mixer-generators of far-infrared (FIR) radiation have been investigated for nine different diode base metals. It was found that a W-Fe diode works as effectively as a W-Co diode in generating tunable FIR radiation by mixing two CO2 lasers and microwave radiation. The bias dependences of W-Ni, W-Co, and W-Fe MIM diodes have also been examined. Observed bias results can be predicted by analyzing their current-voltage characteristics  相似文献   

19.
直热式远红外辐射加热器的研究   总被引:1,自引:0,他引:1  
介绍了直热式远红外辐射加热器的制备工艺。测试出这种加热器具有很高的红外辐射效率,且寿命长、表面绝缘性好、用途广,是一种很有魅力的新型红外辐射源。  相似文献   

20.
The paper presents a review of theoretical and experimental studies of generation of stimulated far-infrared radiation due to transitions between exciton (biexciton) subbands in direct-gap semiconductors.  相似文献   

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