小孩攀爬窗台报警器

为了房屋构造的美观，现在的窗台往往设计得较低且很宽，小孩贪玩爬上去，很容易发生意外。为此，我设计了一种报警器。我先将一组红外线发射、接收装置安装在窗台两边，接着将继电器安装在胶木阻燃盒内，闪光报警器安装往胶木阻燃盒边上，     

冰川冷暖谁先知(下)

冰原:陆地上其厚度不足以掩盖冰下地形之起伏的毯状冰体,规模次于大陆冰盖。冰缘:原指冰川边缘地区,现已泛指不被冰川覆盖的气候寒冷地区,大体与多年冻土分布范围相当,所以冰缘地貌又称冻土地貌。     

外语听力考试发射系统介绍

本文主要介绍近年来出现各种听力考试的播放方法，并分析了这些方法的优缺点。     

ZLW—16型智能硫化仪与微机的配合应用

化工部北京橡胶研究设计院开发的 ZLW—16型多点测温仪是一种能实时测量多点温度并计算硫化反应进程的专用仪器.与常用的测温仪器相比,精度基本相同,但操作简单,可靠性高,能够单独完成橡胶类产品硫化工艺的温度测定和硫化反应进程计     

红外传输特性在照明节能上的研究与应用

红外技术在生产生活中的应用是很广泛的.红外线也可以进行数据传输,但是局限性较大.我们转变思路利用红外线对障碍物等干扰的敏感,以其作为探测手段,设计成探测器并应用于节能系统,实现智能节能.     

Application of NIR spectroscopy for firmness evaluation of peaches

The use of near infrared （NIR） spectroscopy was proved to be a useful tool for quality analysis of fruits. A bifurcated fiber type NIR spectrometer, with a detection range of 800-2500 nm by InGaAs detector, was used to evaluate the firmness of peaches. Anisotropy of NIR spectra and firmness of peaches in relation to detecting positions of different parts （including three latitudes and three longitudes） were investigated. Both spectra absorbency and firmness of peach were influenced by longitudes （i, ii, iii） and latitudes （A, B, C）. For modeling, two thirds of the samples were used as the calibration set and the remaining one third were used as the validation or prediction set. Partial least square regression （PLSR） models for different longitude and latitude spectra and for the whole fruit show that collecting several NIR spectra from different longitudes and latitudes of a fruit for NIR calibration modeling can improve the modeling performance. In addition, proper spectra pretreatments like scattering correction or derivative also can enhance the modeling performance. The best results obtained in this study were from the holistic model with multiplicative scattering correction （MSC） pretreatment, with correlation coefficient of cross-validation γcv=0.864, root mean square error of cross-validation RMSECV=6.71 N, correlation coefficient of calibration r=0.948, root mean square error of calibration RMSEC=4.21 N and root mean square error of prediction RMSEP=5.42 N. The results of this study are useful for further research and application that when applying NIR spectroscopy for objectives with anisotropic differences, spectra and quality indices are necessarily measured from several parts of each object to improve the modeling performance.     

红外线测温仪在整芯输送带生产线上的应用

能否解决塑化程度的工艺控制制约着整芯输送带的生产,而改变测温方式则是塑化工艺有效控制、提高效率的关键所在.红外线测温仪可直接反映出带体受热后的温度状态,对生产过程的精确控制起到有效作用,通过这种控制,可以避免带体表面升温不足或过高的现象,从而达到合理配置生产工艺的重要作用.     

基于Adriano控制器的寻线智能车设计

以飞思卡尔模型C车为车载平台,基于Adriano开发环境,采用红外线传感器进行路径检测,设计了一种寻线智能车.该智能车主要包括微控制器(MCU)模块、电机及驱动模块、舵机模块、路径识别模块.通过系统软、硬件的调试,小车能够稳定的沿引导轨迹运行,行驶效果良好,验证了系统设计可行性.     

破解响尾蛇导弹的奥秘

响尾蛇,是一种凶猛的毒蛇。响尾蛇的捕食方法与众不同,它是以特殊的红外感应系统捕食猎物的。红外线是一种电磁波,当物体温度高于绝对零摄氏度时会产生红外线。在电磁光谱中,红外线介于可见光与无线电波和雷达波之间,能透过非金属物质传至外界。响尾蛇一旦发现可疑红外线,就会迅速跟踪,然后迅速作出决断。一旦它觉得是可口的猎物,就会迅速发动袭击。