Radio frequency identification devices

Small amounts of silver are used in a variety of other products. For example, it is used in dental amalgams. An amalgam is an alloy in which mercury is one of the metals used. Silver amalgams work well for filling decayed teeth. They are non-toxic and do not break down or react with other materials very readily. Silver is also used in specialized batteries, cell phone covers, circuit boards, and Radio Frequency Identification Devices (RFIDs). 

An example of these 2D bar codes scanned from a flatbed scanner can be seen in Figure 18.2. Reliable and cost-efficient radio-frequency identification devices (RFID) are used in highly industrialized processes and have potential application in pharmaceutical laboratories [15],... 

Magnetic Induction-Based Sensors Magnetoelasticity for Biosensing Radio Frequency Identification Devices Inductive-Capacitive Resonant Circuit Sensors Conclusion References... 

Moore B. 2009. The potential use of radio frequency identification devices for active monitoring of blood glucose levels. Journal of Diabetes Science and Technology 3(1) 180-183. 

Weis, S.A. (2003). Security and privacy in radio-frequency identification devices. Boston Massachusetts Institute of Technology. 

Whereas microsystems can be run off of a small watch battery, for further miniaturization an on-chip energy source is required. Microbatteries and microcapacitors are also envisaged to be useful power sources for memory backup, active cables (battery is embedded in the cable), and radio frequency identification devices [152,153]. 

Packaging technology has become extremely complex with many criteria to be met, especially in food, pharmaceutical, medical and electronic packaging. Intelligent packaging is becoming more important. Plastic electronic circuits are likely to play an important part in radio frequency identification devices that could become cheap enough to replace barcodes. 

It is recognized that the recycling of textiles is an important factor and the introduction of electronics will present some challenges. Kohler and Som (2013) have pointed out that electronic textiles may result in adverse side effects during the life cycle of products. Conversely, the introduction of radio frequency identification devices into textile structures would aid identification of constituent fibre types and, after removal, lead to more accurate and efficient recycling procedures. 

Speedpass is a small radio-frequency identification device the driver uses by holding it close to a receiver built into the gasoline pump. The driver transmits credit card information and customer ID to ExxonMobil s information network. The transaction is approved and the customer begins... 

Raw material suppliers respond to demand signals via phone, fax or e-mail. Raw cotton is compressed into bales, and fitted with radio frequency identification device (RFID) tags (see section 8.2.3) to specify source and type. 

Kymissis et al. have examined the possibility of generation of electrical power parasitically from devices built in a shoe, a wearable subsystem for the soldier. Merits of three different types of piezoelectric devices are compared. They are a unimorph strip piezoceramic composite, a stave of multilayer laminate of PVDF foil, and a shoe-mounted rotary magnetic generator as a part of technology demonstration a piezoelectric embedded shoe has also been postulated to periodically broadcast a digital radio frequency identification (RFID) signal as the wearer walks. 

It can be expected that, in the future, other organic electronic devices and circuits, such as sensors [72], radio-frequency identification tags (RFIDs) [73], and ring oscillators [74] may be fabricated using dissipative structures. 

UV curable flexo ink for RFID antennas Radio frequency identification (RFID) devices and contactless smart cards are capable of uniquely identifying an individual or object when they are interrogated by an external radio frequency signal. Recently, a process of printing with the use of UV curable conductive flexo inks has been introduced. The inks are based on polyfunctional acrylates with silver flakes added for the electrical conductivity. The advantages of these inks are ... 

Radio-Frequency Identification (RFID) Sensors RFID is a technology capable of providing wireless identification of objects. Figure 8 shows a typical RFID system that consists of a transponder (a tag) including an integrated circuit containing an RF circuitry and information to be transmitted, with a transceiver to read the radio frequency and transfer the information to a processing device. 

In addition to applications as functional materials in OLEDs and OSCs, semiconducting polymers are needed for other (opto)electronic devices as well. With regard to displays, sensors, and radio-frequency identification tags (RFIDs) for example, it is a challenge to create polymer-based organic transistors (thin-film transistors, OTFT field-effect transistors, OFETs). Figure 6.7 sketches an optional OFET design, and additionally shows schematically its principle of operation. 

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