Atmospheric Optical Communication Systems.

Kennedy, Robert S.

doi:10.21236/ada097673

Cited by 4 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The inside block can include sensors whose data are transmitted to the outside block; all energy used in this block comes exclusively from the outside block. This technique allows instruments to be installed in hard-to-reach locations, enabling monitoring of environments where the direct supply of energy or even the replacement of batteries, as a source of energy, would be unfeasible [32][33][34]. The schematic diagram of the ultrasonic transception system is shown in Figure 1.…”

Section: Ultrasonic Energy and Data Transmission System Based On Freq...mentioning

confidence: 99%

Ultrasonic Energy and Data Transfer through a Metal—Liquid Multi-Layer Channel Enhanced by Automatic Gain and Carrier Control

Pereira

Braga

Kubrusly

2023

Sensors

View full text Add to dashboard Cite

Ultrasonic communication and power transfer are attractive solutions when conventional electromagnetic-based or wired connections are unfeasible. Most ultrasonic communication applications concern a single-solid barrier. Nevertheless, some relevant scenarios can be composed of several fluid—solid media, through which communication and power transfer are intended. Due to its multi-layer nature, insertion loss and, consequently, the system efficiency considerably decrease. This paper presents an ultrasonic system capable of simultaneously power transferring and transmitting data through a set of two flat steel plates separated by a fluid layer using a pair of co-axially aligned piezoelectric transducers on opposite sides of the barrier. The system is based on frequency modulation and adopts a novel technique for automatic gain and automatic carrier control. The modems used herein were developed specifically for this application, rendering the system able to transfer data at a rate of 19,200 bps, using the frequency shift keying (FSK) modulation scheme and simultaneously transferring 66 mW of power through two flat steel plates (5 mm) separated by a fluid layer (100 mm), which completely supplied a pressure and temperature sensor. The proposed automatic gain control allowed a higher data transmission rate and the automatic carrier control reduced power consumption. The former reduced the transmission error from 12% to 5%, while the latter reduced the global power consumption from 2.6 W to 1.2 W. The proposed system is promising for monitoring applications such as oil wellbore structural health monitoring systems.

show abstract

Section: Ultrasonic Energy and Data Transmission System Based On Freq...mentioning

confidence: 99%

Ultrasonic Energy and Data Transfer through a Metal—Liquid Multi-Layer Channel Enhanced by Automatic Gain and Carrier Control

Pereira

Braga

Kubrusly

2023

Sensors

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4] In general, ICT goals in Africa are; to establish an environment that encourages networking of services and applications, promoting internet access to exchange and access digital content, promoting e-education and online services, facilitating e-health, e-commerce and promoting programmes for goods and services, establishing e-government, strengthening network security, building and developing e-society and ICT human resources. [5][6][7][8] Sustainable Development is a global crusade movement, a process rather than an end goal. To achieve and sustain development (sustainable development), revolutionary efficient, reliable and potential tools must be employed.…”

Section: Introductionmentioning

confidence: 99%

Promoting Sustainable Development in Nigeria through Information and Communication Technology (Ict)

F.I¹

2012

IOSRJECE

View full text Add to dashboard Cite

Stratospheric temperature profile from balloon-borne measurements of the 10.4-μm band of CO2

Rinsland

Goldman

Murcray

et al. 1983

Journal of Quantitative Spectroscopy and Radiative Transfer

View full text Add to dashboard Cite

Atmospheric Optical Communication Systems.

Cited by 4 publications

References 6 publications

Ultrasonic Energy and Data Transfer through a Metal—Liquid Multi-Layer Channel Enhanced by Automatic Gain and Carrier Control

Ultrasonic Energy and Data Transfer through a Metal—Liquid Multi-Layer Channel Enhanced by Automatic Gain and Carrier Control

Promoting Sustainable Development in Nigeria through Information and Communication Technology (Ict)

Stratospheric temperature profile from balloon-borne measurements of the 10.4-μm band of CO2

Contact Info

Product

Resources

About