Electronics, Free Full-Text
The world’s oil and gas is transported using a network of steel pipelines most of which lie underground. The length of this network in the US/Canada alone is 3.5 million kilometers. Keeping track of pipes in such a network for pipeline-health monitoring, maintenance, and logistics is an acute problem faced by pipeline-operators. Recently, radio-frequency-identification tags (RFIDs) have been proposed for tracking pipelines and even for monitoring pipeline health with additional built-in sensors. Low-cost RFID tags are wirelessly powered and battery-less. However, RFIDs do not function optimally in the presence of magnetic carbon steel pipes that are prevalent in the industry. High-frequency wireless signals also attenuate rapidly through wet soils. In this research, the use of passive RFID sensor platforms for interrogating buried pipes up to 1.25 m deep in the LF bands is proposed. Using magnetic-induction-based communication, a test-comparison between conventional full/half duplex (FDX/HDX) and sequential (SEQ) RFID schemes is detailed. Wireless measurements in the presence of an industry-standard ASTM A-53 carbon-steel pipe show a SEQ RFID offering better immunity against magnetic proximity effects of the pipe’s wall with an 8.3 dB (x6.8) improvement over a FDX/HDX RFID operating under similar conditions over a distance of 80–125 cm at which pipes are typically buried.
INTERACTIVE WHITEBOARD - Hitachi Solutions Europe
Electronics, Free Full-Text
JOItmC, Free Full-Text, start the dual investment - learn & earn survey
5 Ways to Free Yourself of Electronics All Day
Electronics Recycling - Sandy Springs Education Force
Honeybee Swarms Can Produce as Much Electric Charge as a Storm Cloud, Smart News, Bee
Household Hazardous Waste Collection, Electronics Recycling and
Electronics Free Full-Text Experimental Analysis Of, 47% OFF
Electronics Magazine (1966-10-31) : Free Download, Borrow, and
Cloud-based chip design for national security achieves key
Electronics, Free Full-Text
Electronics Shop Billing Software Service, Free trial & download
Scrolling, scroll, Frame, document, information, paper, rectangle, Scroll Frame
Electronics, Free Full-Text, mod player action optimization