Optical devices

Li-fi removes these limitations. 1.) Capacity: Insufficient Radio spectrum cannot cope up with the demands of the everyday data usage. But optical light spectrum has a huge advantage in terms of the range. Higher data transmission rates of around 10Gbps. 2.) Efficiency: There are about 1.5 billion base stations globally. A huge amount of energy is consumed by these base stations, especially

Laser scanning devices These are single devices which function by the use of a scanning laser beam to view and map an area. This works by use of a two-dimensional sensing zone, this zone is programmable thus enabling it to recognise any stationary equipment within the scanning zone

Internet of Things (IoT) devices ranging from in-home DVRs to simple webcams used for teleconferencing and home monitoring (Antonakakis, April, & Bailey, 2005). With a recruited army reaching over 600,000 devices, the infected devices spread across the globe ultimately crippled the Domain

Billed as a all in one STEM lab, these devices that look like giant hockey pucks have up to 14 different built in sensors that can measure everything sound and light levels, to PH level, voltage, GPS and humidity which can be as easy to set up as a walk in the park. HOW IT WORKS That is just it- it just works! I met with my AP Environmental Science teacher and while I wouldn’t say the start guide/online information is intuitive, it is workable. In a short amount of time we had it connected via

Optical communication is a form of telecommunication system in which light is used as the mode of transmission. An optical communication system consists of transmitter, receiver and channel. The transmitter basically works as an encoder, it encodes the message as an optical signal, the channel helps the signal to propagate and the receiver will work to decode the optical signal and get the message. [1] If we roll back early we will find that people used different types of body languages and sign

angle or mode. Such bandgap effect could be understood by investigating the optical performance of photonic crystals. In this paper, photonic bandgap calculations are performed for two dimensional photonic crystals using matlab. Plane wave expansion method is used to solve Maxwell’s equations. The effect of lattice constant and refractive index is investigated. Introduction Photonic crystals are special class of optical media with periodic modulation of refractive index by arrangement of dielectric

Application of Sensor in Petroleum Industry INTRODUCTION Sensor is an electronic device that detects a change in physical stimulus and turns it into a signal which can be measured or recorded. There are various sensors such as flows sensor, temperature sensor, pressure sensor and so forth. Each type of sensors has their own characteristics. Petroleum industry utilized many types of sensor, some of that are temperature sensor, pressure sensor, liquid level sensor and liquid leakage sensor

twisted pair or fiber optic cabling, both of which use separate conductors for sending and receiving data. In this type of environment, Ethernet stations can forgo the collision detection process and transmit at will, since they are the only potential devices that can access the medium. This allows end stations to transmit to the switch at the same time that the switch transmits to them, achieving a collision-free environment. (Pidgeon, 2011) The 24

vasculature and the reflective light coming back towards the source can determine the blood flow’s velocity. [B] This non-destructive way to assess microcirculatory function has been around for approximately 40 years now in its realised state. The proposed device became experimentally plausible in 1972 when Riva used LDF for measuring retina vessels in rabbits. [D] Around 1980 another

Second, there is a physical device that connects the computer to the network of lines he is communicating over. It could be a modem, a network card, a radio transmitter, or a router. Third, there is a set of software that allows the computer to send data across this network. There are a lot of layers to this software. At the top level, the computer sends some type of "packet" of data to the device and across the network. Typically, this is a TCP/IP packet. This