TeTechs光纤耦合太赫兹测量套件是TeTechs公司为大学等科研机构量身定制的教学套件，非常适合给学生演示太赫兹的测量效果。学生可进行动手实验，并可以直观的观察
2016-08-10 16:17
（脑控技术丛书）太赫兹科学技术和应用
2020-03-06 08:02
（脑控技术丛书）太赫兹科学技术和应用
2020-03-03 13:21
http://gelimokuai.taobao.com/电源模块厂家直销，质量有保证。方便各位工程师小批量样品的购买 优惠现货促销B0505S-1W可OEM
2012-05-31 14:14
一级代理OCX系列产品：OC5011 OC5021 OC5010 OC5020 OC5028 OC5022 OC5200 OC5331 OC5351 OC4001 OC6700 OC6701 OC6702 OC5806 OC6801 OC5800 OC5801 OC7135 OC7130 OC7131 等更多型号，欢迎来电咨询：158 8954 3533 潘先生 。OC5331/5351/5330/5350是一款集成三/五功能的开关降压型LED恒流驱动器。通过电源的接通与关段可实现功能之间的切换。OC5331/OC5330为三功能：全亮（100%）--暗亮（25%）--爆闪。OC5351/OC5350为五功能：全亮100%--半亮50%--暗亮25%--爆闪-SOS。OC5331/5351/5330/5350采用固定关段时间的控制方式，关断时间可通过外部电容进行调节，因此工作频率可根据用户要求而设置。OC5331/5351/5330/5350内部还集成了VDD稳压管，濄温保护电路等，减少外围元件并提高了系统可靠性。OC5331/5351外置MOS，采用SOT23-6封装。OC5330/0C5350内置MOS，采用ESOP8封装。特点：内置三功能：100%-25%-爆闪内置五功能：全亮100%--半亮50%--暗亮25%--爆闪--SOS宽输入电压范围：3.2V-100V高效率：可高达93%关断时间可调内置濄温调节内置VDD稳压管低压差工作输出电流稳定应用范围：自行车,电动车灯,摩托车灯LED手电筒大功率LED照明 欧创芯的一些主要产品型号IC系列：升压恒流:OC6701 3.2～100V 大于输入电压2V以上即可3A以内OC6700 3.2～60V 大于输入电压2V以上即可 2A以内OC6702 3.2～100V 大于输入电压2V以上即可 1A以内降压恒流:OC5021 3.2～100V最少低于输出电压1V以上就可以正常工作5A以内OC5020 3.2～100V最少低于输出电压1V以上就可以正常工作 2A以内OC5022 3.2～60V 最少低于输出电压1V以上就可以正常工作 3A以内OC5028 3.2～100V 最少低于输出电压1V以上就可以正常工作1.5A以内OC5011 5～40V 最少低于输出电压1V以上就可以正常工作5A以内OC5010 5～40V 最少低于输出电压1V以上就可以正常工作2A以内LED DRIVER DC-DC升降压恒流OC4001 5～100V 3.2～100V 3ALED DRIVER DC-DC线性降压恒流OC7135 2.5-7V 低于等于输入电压即可固定
2019-09-16 17:00
文章中，一个国际研究小组报告称，通过太赫兹复用器首次成功地传输了两个实时视频信号，总数据速率为50 Gb/s，比蜂窝通信网络大约快100倍。随着对无线数据传输速度和容量的需求越来越高，微波信号的传输
2018-08-31 15:58
Several industrial inspection techniques like X-ray scanning and microwave detection have been successfully used in various security applications over the last few decades. For instance, until recently X-ray scanning dominated nondestructive testing (NDT) methods in security screening applications. However, the hazards of ionization radiation combined with relatively high costs have limited widespread use of X-ray scanners in many applications where human health must not be jeopardized. The postal industry is no exception. Unmediated on-the-spot inspections by postal inspectors remain the most common and effective way to check parcels and envelopes. Quite often such inspection is carried out manually without any modern, automated equipment or computer-aided support.TeraSense Group, Inc has developed a brand-new solution for improving the safety at postal offices and eliminating health hazards for clients and postal workers. We offer the Terahertz High-Speed Imaging Scanner, which is based on our key innovative component: our Ultrafast Terahertz Imaging Camera with image acquisition rates up to 5,000 lines per second. Thanks to its highly sensitive sensor array, we can now bring health and safety measurements in the postal industry to a new level.TeraSense THz scanners have relatively low costs and offer extremely high operating speeds compared with X-ray and microwave techniques. That makes Terahertz waves a suitable and effective security screening solution for use in the postal industry.KEY SPECIFICATIONSTERAHERTZ IMAGINGFOR MAIL AND PARCEL SCREENINGADVANTAGES OF THE THz IMAGING SYSTEM• Powerful tool for prevention of terrorist attacks• Effective tool for revealing drug traffickers • Ability to detect undeclared items in a parcel or envelope• Extremely high throughput capacity due to high imaging speeds• Nondestructive and hazard-free inspection• Low-cost solutionTHz IMAGING CAMERA• Operating frequency: 100 GHz• Image acquisition rate: up to 5000 lines per second• Number of pixels (scalable): 256 x 1 • Field of view (coverage area): 384 x 3 mm2 • Pixel size: 1.5 x 3 mm• Spatial resolution: 3 mm• Fits conveyor belt running speed up to 15 m/s• Original software: TeraFast®Viewer • Interface: mini-USB• Power supply: 24V/20WTHz SOURCE: • Operating frequency: 100 GHz• Power per pixel: 140 µW• Reflection beam-forming optics• Protective isolator for enhanced stabilityHight Speed LinearTerahertz Scannerwith Type II THz SourceSystem set upAnother important application of the Terahertz Scanner is the detection of items that terrorists might send by mail, for example: Traffickers deliver drugs using ordinary mail services, and they often get away with it. Such “supply chains” may stay unrevealed for years because security inspection in postal facilities is performed manually and relies on the professionalism of postal inspectors. Unfortunately, manual inspection is often not enough.This situation can be changed entirely thanks to our Terahertz High-Speed Imaging Scanner — our new security screening system for postal offices. Now it is possible to check envelopes and parcels at industrial conveyor rates (up to 15m/s) and detect substances like the ones listed below: • Marijuana and similar plants• Cocaine• Liquid substancesPostal inspectors can detect such items in real time and on the spot while the conveyor belt is running. It works even if the amount of drugsin a parcel is just a few grams.It is essential that our scanner can detect various types of items inside parcels and envelopes without disturbing their integrity. It is important for postal inspectors to check if the content of the parcel matches the customs declaration. Our Terahertz Scanneris an optimal solution for this application. Terahertz waves are harmless not only to the human body but also to technology. This property will safely allow postal staff to ignore warning labels like “Caution, do not X-ray” and check such parcels like any others.The Terahertz High-Speed Imaging Scanner can be deployed in minutes and does not require any special qualifications to operate. In addition, our scanner is estimated to be cheaper than existing solutions on the market.THz images of sachets of tobacco (5 g, 3 g, 1 g) in envelopes5 g 3 g 1 gA dummy bomb in a boxTHz image of a sachetof flour in an envelopeDETECTION OF UNDECLARED ITEMS• Explosives and their components • Poison• Biological weapons (anthrax and others)TERRORISM PREVENTIONMAIL SCREENING FOR DRUG DETECTIONA sachet of tobacco (3 g)A sachet of flourSome of the most suitable applications of TeraSense THz scanners are listed below.THz image of a dummy bombin a box
2019-10-18 14:00
电阻：1,000mΩ MIN绝缘强度：1,000Vrms min@sea level颖鑫电子厂家的钮子开关批发价格：0.5~2元/个用途：航模，通讯，家电类，电源及其他一些电子设备钮子开...
2021-10-29 06:50
周期与频率的关系：f=1/T。(其中f为频率，T为周期)。 物质在1s内完成周期性变化的次数叫做频率，常用f表示。为了纪念德国物理学家赫兹的贡献，人们把频率的单位命名为赫兹，简称“赫”，符号为Hz
2021-07-06 07:37
资料批发啊 、、、翘起哦
2012-06-26 14:14
