值得注意的是,TVB6002-1/IMC 1308-644857-12 TEL模块特点:半导体模块工作原理是激励方式,利用半导体物质(既利用电子)在能带间跃迁发光,用半导体晶体的解理面形成两个平行反射镜面作为反射镜,组成谐振腔,使光振荡、反馈、产生光的辐射放大,输出激光。半导体模块激光器优点是体积小,重量轻,运转可靠,耗电少,效率高等特点。半导体主要具有:热敏特性半导体的电阻率随温度变化会发生明显地改变。例如纯锗,湿度每升高10度,它的电阻率就要减小到原来的1/2。温度的细微变化,能从半导体电阻率的明显变化上反映出来。利用半导体的热敏特性,可以制作感温元件——热敏电阻,用于温度测量和控制系统各种半导体器件都因存在着热敏特性,在环境温度变化时影响其工作的稳定性。
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TVB6002-1IMC
光敏特性半导体的电阻率对光的变化十分敏感。有光照时、电阻率很小;无光照时,电阻率很大。例如,常用的硫化镉光敏电阻,在没有光照时,电阻高达几十兆欧姆,受到光照时。电阻一下子降到几十千欧姆,电阻值改变了上千倍。利用半导体的光敏特性,制作出多种类型的光电器件,如光电二极管、光电三极管及硅光电池等。广泛应用在自动控制和无线电技术中。掺杂特性在纯净的半导体中,掺人极微量的杂质元素,就会使它的电阻率发生极大的变化。例如。在纯硅中掺人。百万分之—的硼元素,其电阻率就会从214000Ω·cm一下于减小到0.4Ω·cm,也就是硅的导电能为提高了50多万倍。人们正是通过掺入某些特定的杂质元素,人为地精确地控制半导体的导电能力,制造成不同类型的半导体器件。可以毫不夸张地说,几乎所有的半导体器件,都是用掺有特定杂质的半导体材料制成的。
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TVB6002-1IMC
It is worth noting that the characteristics of the TVB6002-1/IMC 1308-644857-12 TEL module are: the working principle of the semiconductor module is an excitation method, which uses semiconductor materials (i.e. electrons) to transition between energy bands and emit light. Two parallel reflective mirrors are formed using the cleavage surface of the semiconductor crystal as reflecting mirrors, forming a resonant cavity to oscillate, feedback, and amplify the radiation of the generated light, and output laser. The advantages of semiconductor module lasers are small size, light weight, reliable operation, low power consumption, and high efficiency. Semiconductors mainly have the following characteristics: thermal sensitivity. The resistivity of semiconductors changes significantly with temperature. For example, pure germanium, with every 10 degrees increase in humidity, its resistivity decreases to 1/2 of its original value. The subtle changes in temperature can be reflected in the significant changes in semiconductor resistivity. By utilizing the thermal sensitive characteristics of semiconductors, temperature sensing components – thermistors – can be made for temperature measurement and control systems. Various semiconductor devices have thermal sensitive characteristics that affect their stability when environmental temperature changes.
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TVB6002-1IMC
The resistivity of a semiconductor with photosensitive characteristics is very sensitive to changes in light. When there is light, the resistivity is very low; When there is no light, the resistivity is high. For example, the commonly used cadmium sulfide photoresistor has a resistance of up to tens of megaohms when not illuminated, and when exposed to light. The resistance suddenly dropped to tens of thousands of ohms, and the resistance value changed thousands of times. By utilizing the photosensitive properties of semiconductors, various types of optoelectronic devices are produced, such as photodiodes, phototransistors, and silicon photocells. Widely used in automatic control and radio technology. Doping characteristics: In pure semiconductors, doping with extremely small amounts of impurity elements can cause significant changes in their electrical resistivity. For example. Incorporating humans into pure silicon. The resistivity of boron element in parts per million will decrease from below 214000 Ω· cm to 0.4 Ω· cm, which means that the conductivity of silicon has increased by more than 500000 times. People precisely control the conductivity of semiconductors by doping certain specific impurity elements, and manufacture different types of semiconductor devices. It is no exaggeration to say that almost all semiconductor devices are made of semiconductor materials doped with specific impurities.
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TVB6002-1IMC
PLC内的I/O模板,除一般的DI/DO、AD/DA模板外,还发展了一系列特殊功能的I/O模板,这为PLC用于各行各业打开了出路,如用于条形码识别的ASCII/BASIC模板,用于反馈控制的PID模板,用于运行控制、机械加工的高速计数模板、单轴位置控制模板、双轴位置控制模板、凸轮定位器模板、射频识别接口模板等,这在以后还会有很大发展。另外在输入、输出的相关元件、强干扰场合的输入、输出电隔离、地隔离等方面也会更加完善。
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TVB6002-1IMC
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