Results 221 to 230 of about 1,123,025 (269)

High-Precision Laser Gravimeter

Applied Optics, 1974
A ballistic gravimeter has been constructed using a laser interferometer to measure the vertical distance traversed by a free-falling body and a rubidium frequency standard to measure elapsed time. The error in distance and time measurement are estimated to be less than 2 x 10(-8) and 2 x 10(-11) respectively.
G P, Arnautov, L D, Gik, E N, Kalish, V P, Koronkevitch, I S, Malyshev, Y E, Nesterikhin, Y F, Stus, G G, Tarasov   +7 more
openaire   +2 more sources

High-precision interconnect analysis

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 1998
Integrated circuits have evolved to a stage where interconnections significantly limit their performance and functional complexity. We introduce a set of tools to perform highly accurate three-dimensional capacitance and resistance/thermal calculations of interconnect structures.
Rui Escadas Martins, Wolfgang Pyka, Rainer Sabelka, Siegfried Selberherr   +3 more
openaire   +1 more source

A High-Precision Photoelectric Photometer

Journal of the Optical Society of America, 1961
During work on the primary standard of light a photometer has been developed which possesses desirable qualities. The detector used is a Gillod-Boutry vacuum photocell with cesium-bismuth cathode surface having a basic sensitivity of 25 μA/lu. The photocurrent is measured by a simple circuit, using balanced electrometer tubes, similar to circuits which
Jones, O. C., Sanders, C. L.
openaire   +2 more sources

A high performance precision machine

IEEE Conference on Robotics, Automation and Mechatronics, 2004., 2005
In the area of precision engineering industries, high performance positioning precision machines are increasingly employed to improve the productivity and to lower the manufacturing cost. In many applications such as actuaphotonics or biomedical products, there are increasingly demands for machines that have positioning accuracy of several micrometers.
Kay Soon Low, Meng-Teck Keck
openaire   +1 more source

A high temperature precision amplifier

IEEE Journal of Solid-State Circuits, 1995
A precision operational amplifier has been developed for instrumentation applications in which the circuitry must operate in ambient temperatures as high as 200/spl deg/C. At 200/spl deg/C the amplifier maintains an input offset voltage and current of less than 200 /spl mu/V and 1 nA respectively, a gain bandwidth product of 2.2 MHz, and a slew rate of
Ivars G. Finvers, James W. Haslett, Fred N. Trofimenkoff   +2 more
openaire   +1 more source

High Precision Quantitative Angiography

IEEE Transactions on Medical Imaging, 1987
Statistical considerations on the precision in the determination of blood vessel dimensions from digitized cine angiographic images are described. The resolution requirements related to "point measurements" and segmental diameter curve evaluations are discussed.
T, Sandor, A, D'Adamo, W B, Hanlon, J, Spears   +3 more
openaire   +2 more sources

High precision traffic measurement

IEEE Communications Magazine, 2002
Making passive measurements is a challenging process. A small number of research groups have overcome these difficulties and have made terabytes of captured network traffic available to the Internet community. We have discovered that even when initial hurdles to collecting traces have been overcome, there are potentially many methodological weaknesses ...
John G. Cleary, Ian Graham, Tony McGregor, Murray Pearson, Ilze Ziedins 0001, James Curtis, Stephen Donnelly, Jed Martens, Stele Martin   +8 more
openaire   +1 more source

High speed and high precision parallel mechanism

Proceedings of the 1997 IEEE/RSJ International Conference on Intelligent Robot and Systems. Innovative Robotics for Real-World Applications. IROS '97, 2002
We have established a research collaboration project to develop a precise and high-speed arm applied to assembly process in electrical product and machine industries, supported by the International Robots and Factory Automation Foundation (IROFA). The paper addresses the background of the development, the required specification for the robot arm, and ...
Tatsuo Arai, Hiroaki Funabashi, Yoshihiko Nakamura, Yukio Takeda, Yoshihiko Koseki   +4 more
openaire   +1 more source

High Precision, High Performance FPGA Adders

2019 IEEE 27th Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), 2019
FPGAs are now being commonly used in the datacenter as smart Network Interface Cards (NICs), with cryptography as one of the strategic application areas. Public key cryptography algorithms in particular require arithmetic with thousands of bits of precision.
Martin Langhammer, Bogdan Pasca 0001, Gregg Baeckler   +2 more
openaire   +1 more source

High-Precision Hand Interface

2006
Virtual reality techniques have been introduced to propose the intuitive interface in virtual entertainment environments. We introduce the intuitive and natural interaction interface supporting the high-precision hand operations. In this paper, we describe the novel sensing mechanism of finger tracking with fast refresh rate and high resolution.
Yongwan Kim, Yongseok Jang, Wookho Son, Kyeonghwan Kim   +3 more
openaire   +1 more source