Results 81 to 90 of about 398,617 (211)

Reliable data delivery in low energy ad hoc sensor networks

, 2010
Reliable delivery of data is a classical design goal for reliability-oriented collection routing protocols for ad hoc wireless sensor networks (WSNs). Guaranteed packet delivery performance can be ensured by careful selection of error free links, quick ...
Dixon, M.W., Terry Koziniec, Murray, D., David Murray, Daabaj, K., Khaled Daabaj, Koziniec, T., Mike Dixon   +7 more
core   +1 more source

Magnetoelectric Sensor Operating in d₁₅ Thickness-Shear Mode for High-Frequency Current Detection

Sensors
For the application of high-frequency current detection in power systems, such as very fast transient current, lightning current, partial discharge pulse current, etc., current sensors with a quick response are indispensable.
Fuchao Li, Jingen Wu, Sujie Liu, Jieqiang Gao, Bomin Lin, Jintao Mo, Jiacheng Qiao, Yiwei Xu, Yongjun Du, Xin He, Yifei Zhou, Lan Zeng, Zhongqiang Hu, Ming Liu   +13 more
doaj   +1 more source

FBG-based fibre-optic current sensors for power systems protection : laboratory evaluation

, 2009
Conventional differential current unit protection schemes rely on a pair of electronic protection relays that measure current phasors separately at the boundaries of the protected zone.
Niewczas, Pawel, Dysko, Adam, Booth, Campbell, Orr, P.   +3 more
core  

Current Sensor Fault Diagnosis Based on a Sliding Mode Observer for PMSM Driven Systems

Sensors, 2015
This paper proposes a current sensor fault detection method based on a sliding mode observer for the torque closed-loop control system of interior permanent magnet synchronous motors.
Gang Huang, Yi-Ping Luo, Chang-Fan Zhang, Yi-Shan Huang, Kai-Hui Zhao   +4 more
doaj   +1 more source

Theoretical and experimental studies of a novel cone-jet sensor

, 2001
Modeling of a novel cone-jet sensor using two-dimensional (2-D) finite element analysis was investigated for dimensional measurement. Theoretical and experimental studies demonstrated that a cone-jet sensor supplied with air can be used to accurately ...
Jones, BE, Butler, C, Xie, T, Yang, QP
core   +1 more source

Analysis and Optimization of Noise Response for Low-Noise CMOS Image Sensors [PDF]

, 2012
CMOS image sensors are nowadays widely used in imaging applications and particularly in low light flux applications. This is really possible thanks to a reduction of noise obtained, among others, by the use of pinned photodiode associated with a ...
Molina, Romain, P. Magnan, P. Martin-Gonthier, Cervantes, Paola, R. Molina, P. Cervantes, Magnan, Pierre, Martin-Gonthier, Philippe   +7 more
core   +1 more source

Built-in current sensor for ΔIDDQ testing.

IEEE J. Solid State Circuits, 2004
This paper presents the implementation of a built-in current sensor for ¿IDDQ testing. In contrast to conventional built-in current monitors, this implementation has three distinctive features: 1) built-in self-calibration to the process corner in which the circuit under test was fabricated; 2) digital encoding of the quiescent current of the circuit ...
Vazquez, J.R., Pineda de Gyvez, J.
openaire   +1 more source

A New Mirroring Circuit for Power MOS Current Sensing Highly Immune to EMI

Sensors, 2013
This paper deals with the monitoring of power transistor current subjected to radio-frequency interference. In particular, a new current sensor with no connection to the power transistor drain and with improved performance with respect to the existing ...
Orazio Aiello, Franco Fiori
doaj   +1 more source

Radiation damage in the LHCb vertex locator [PDF]

, 2013
The LHCb Vertex Locator (VELO) is a silicon strip detector designed to reconstruct charged particle trajectories and vertices produced at the LHCb interaction region. During the first two years of data collection, the 84 VELO sensors have been exposed to
Volkov, V., Akiba, K., Bjornstad, PM, Whitehead, M. (Mark), Casse, G., Alexander, M., Artuso, M, Gordon, H, Webber, AD, Harrison, J, Hennessy, K, Alexander, M, Szumlak, T, Moran, D., Jans, E, Dossett, D, John, M., Redford, S, Jans, E., HASH(0x55a67fc201a0), Ali, S, Benton, J., De Capua, S., Bogdanova, G., Bjornstad, P. M., Rinnert, K., Ketel, T., Mous, I, Affolder, A., Webber, A. D., Garofoli, J., Patel, G. D., Bowcock, T. J. V., Buytaert, J, Garofoli, J, Liles, M., Salih, Sabah, Velthuis, J, Zverev, E, Heijne, V., Rodrigues, E, Reid, MM, Webber, A.D., Latham, T, Brown, H., Parkes, C, Parkes, Christopher; id_orcid, Oblakowska-Mucha, A, Velthuis, J., Farinelli, C, Liles, M, Hennessy, K., Bjornstad, P.M., Rodrigues, E., Harrison, J., Akiba, K, Thomas, C., Hutchcroft, D., Schiller, M, Bowcock, TJV, Bogdanova, G, Gersabeck, M, Reid, M.M., Collins, P., Volkov, V, Artuso, M., John, M, De Capua, S, Heijne, V, Reid, Matthew M., Leflat, A., Ali, S., Moran, D, Lafferty, G., Gershon, T. J., Rinnert, K, Affolder, A, Gordon, H., Lafferty, G, Leflat, A, Brown, H, Gersabeck, M., Redford, S., Borghi, S., Casse, G, Mous, I., Bowcock, T. J V, Szumlak, T., BjØrnstad, P. M., Collins, P, van Beuzekom, M., Zverev, E., Parkes, C., Latham, Thomas, Schiller, M., Oblakowska-Mucha, A., Hutchcroft, D, Patel, GD, Farinelli, C., Reid, M. M., Ketel, T, Eklund, L, Dossett, D., Latham, T., Thomas, C, Borghi, S, Benton, J, Gershon, T., Whitehead, M., Gershon, T, Patel, G.D., Eklund, L., Bowcock, T.J.V., Whitehead, M, van Beuzekom, M, Buytaert, J.   +115 more
core   +1 more source

Extending the GMR Current Measurement Range with a Counteracting Magnetic Field

Sensors, 2013
Traditionally, current transformers are often used for current measurement in low voltage (LV) electrical networks. They have a large physical size and are not designed for use with power electronic circuits.
Tin Yan Poon, Ricky Wing Hong Lau, Norman Chung Fai Tse   +2 more
doaj   +1 more source