传感器技术论文中英文对照资料外文翻译文献无叶风扇控制器
Development of New Sensor Technologies
垃圾气化
Sensors are devices that can convert physical。chemical。logical quantities。etc。into electrical signals。The output signals can take different forms。such as voltage。current。frequency。pulse。etc。and can meet the requirements of n n。processing。recording。display。and control。They are indispensable components in automatic n systems and automatic control systems。If computers are compared to brains。then sensors are like the five senses。Sensors can correctly sense the measured quantity and convert it into a corresponding output。playing a decisive role in the quality of the system。The higher the degree of n。the higher the requirements for sensors。In today's n age。the n industry includes three parts: sensing technology。n technology。and computer technology。Modern computer technology and n technology have been fully developed due to the rapid development of large-scale integrated circuits。They not only require sensors to have high accuracy。reliability。response speed。and n n。but a
lso require them to be low-cost and easy to use。usly。nal sensors are gradually being eliminated due to their ns。characteristics。volume。cost。etc。Many developed countries in the world are accelerating the research and development of new sensor technologies and have made great breakthroughs。Nowadays。the development of new sensor technologies mainly includes the following aspects:
Using physical phenomena。chemical ns。and logical effects as the principles of sensors。it is important to discover new phenomena and effects as the basis for researching and developing new sensors。Sharp n of Japan has successfully developed high-temperature superconducting ic sensors using superconducting technology。which is a major breakthrough in sensor technology。Its sensitivity is second only to superconducting quantum interference devices。Its manufacturing process is much simpler than that of superconducting quantum interference devices。It can be used in ic imaging technology and has broad n value.
可降解塑料检测When antibodies and antigens meet and combine on the surface of an electrode。it can
cause a change in electrode potential。This phenomenon can be used to make immunosensors。Immunological sensors made from these antibodies can check whether a certain antigen exists in a logical organism。For example。using hepatitis virus antibodies can check whether a person has hepatitis。playing a rapid and accurate role。The University of California has developed such sensors.
Sensor materials are an important basis for sensor technology。Due to the progress of material science。us new sensors can be manufactured。For example。temperature sensors can be made using polymer films。optical fibers can be used to make pressure。flow。temperature。displacement。and other sensors。pressure sensors can be made using ceramics。Polymer films can adsorb and release water molecules in n to the relative humidity of the surrounding environment。The dielectric constant of the polymer is small。and water molecules can increase the dielectric constant of the polymer。Making the polymer dielectric into a capacitor and measuring the change in capacitance can obtain the relative humidity。Using this principle。polystyrene films can be made into temperature sensors using plasma n。They have the following characteristi
面袋cs: wide humidity measurement range。wide temperature range。up to -400℃ to +1500℃。fast response speed。less than 1 second。small size。suitable for measuring humidity in small spaces。and small temperature coefficient.
5psi，最高可达1000psi。该传感器采用微机电系统(MEMS)技术，结构简单、可靠性高、响应速度快、功耗低，可广泛应用于汽车、医疗、工业等领域。
陶瓷电容式压力传感器是一种干式压力传感器，采用先进的陶瓷技术和厚膜电子技术，具有技术性能稳定、年漂移量小、温漂小、抗过载强等优点。其测量范围可达60mpa，德国E+H公司和美国Kahlo公司产品处于领先地位。抛丸机除尘
光导纤维传感器利用光纤传输的光波强度、相位、频率、偏振态等变化来测量温度、压力、电场、磁场等物理量的大小，具有灵敏度高、结构简单、体积小、耐腐蚀、电绝缘性好、光路可弯曲、便于实现遥测等特点。日本的IdecIzumi公司和Suns公司处于先进水平，集成光路器件代替原有光学元件和无源光器件，使光纤传感器有高的带宽、低的信号处理电压，可靠性高，成本低。
ingan半导体技术中的加工方法已引进到传感器制造，如利用半导体技术制造出硅微传感器、利用薄膜工艺制造出气敏、湿敏传感器、利用溅射薄膜工艺制压力传感器等。日本横河公司利用各向导性腐蚀技术制成全硅谐振式压力传感器，其测量最高精度可达0.01%FS。美国SiliconMicrostructureInc.(SMI)公司开发的硅微压力传感器采用微机电系统(MEMS)技术，结构简单、可靠性高、响应速度快、功耗低，可广泛应用于汽车、医疗、工业等领域。
硅微传感器是当今传感器发展的前沿技术之一。它以硅材料制成，具有独特的三维结构，经过轻细微机械加工和多次蚀刻制成惠斯登电桥于硅膜片上。当硅片上方受力时，其产生变形，电阻产生压阻效应而失去电桥平衡，输出与压力成比例的电信号。硅微传感器的敏感元件体积为微米量级，是传统传感器的几十、几百分之一。在工业控制、航空航天领域、生物医学等方面有重要的作用，例如在飞机上利用可减轻飞机重量，减少能源。另外，硅微传感器还能敏感微小被测量，可制成血压压力传感器。
CYJ系列溅谢膜压力传感器是由中国航空总公司北京测控技术研究所研制的。它采用离子溅射工艺加工成金属应变计，克服了非金属式应变计易受温度影响的不足。CYJ系列传感器具有高稳定性，适用于各种场合，被测介质范围宽。此外，它还克服了传统粘贴式带来
的精度低、迟滞大、蠕变等缺点，具有精度高、可靠性高、体积小的特点。CYJ系列传感器广泛用于航空、石油、化工、医疗等领域。
