Results 21 to 30 of about 15,243 (254)
OPTIMIZATION OF A SUN VECTOR DETERMINATION FOR PINHOLE TYPE SUN SENSOR
International Journal of Research -GRANTHAALAYAH, 2017 The sun vector is commonly used for defining a satellite attitude and many types of sensors exist for its determination. An attitude determination system is designed for each satellite project based on missions’ requirements. A fine pinhole sun sensor type was chosen and designed for HORYU-IV nanosatellite of Kyushu Institute of Technology. This sensor
Faizullin, Dmytro +3 more
openaire +3 more sources
Sensors, 2016 Micro-needle electrodes (MEs) have attracted more and more attention for monitoring physiological electrical signals, including electrode-skin interface impedance (EII), electromyography (EMG) and electrocardiography (ECG) recording.
Keyun Chen +5 more
doaj +1 more source
A sun sensor implemented with an asynchronous luminance vision sensor
ESSCIRC 2017 - 43rd IEEE European Solid State Circuits Conference, 2017 A sun sensor implemented with a spiking pixel matrix is reported. It is the very first one based on an asynchronous event-based pixel array. A paradigm associated to classic digital sun sensors is solved with this approach. Only pixels illuminated by the sun light are readout. Hence, the output data flow is quite reduced.
Juan A. Leñero-Bardallo +4 more
openaire +4 more sources
BepiColombo fine sun sensor [PDF]
International Conference on Space Optics — ICSO 2012, 2017 Design, development and verification of the passive Fine Sun Sensor (FSS) for the BepiColombo spacecraft is described. Major challenge in the design is to keep the detector at acceptable temperature levels while exposed to a solar flux intensity exceeding 10 times what is experienced in Earth orbit. A mesh type Heat Rejection Filter has been developed.
Boslooper, E.C. +5 more
openaire +2 more sources
Fish Capsules: A System for High‐Throughput Screening of Combinatorial Drugs
Advanced Science, 2022 Large‐scale screening of molecules heavily relies on phenotyping of small living organisms during preclinical development. However, deep profiling candidate therapeutics on whole animals typically requires laborious manipulations and anesthetic treatment
Minghui Tang +10 more
doaj +1 more source
Space Radiation Effect on Si Solar Cells [PDF]
Journal of Astronomy and Space Sciences, 2008 High energy charged particles are trapped by geomagnetic field in the region named Van Allen Belt. These particles can move to low altitude along magnetic field and threaten even low altitude spacecraft.
Jae-Jin Lee +10 more
doaj +1 more source
Sensors, 2021 This paper presents the development of the UPMSat-2 sun sensor, from the design to on-orbit operation. It also includes the testing of the instrument, one of the most important tasks that needs to be performed to operate a sensor with precision.
Angel Porras-Hermoso +6 more
doaj +1 more source
On-orbit calibration of sun sensor’s central point error for triad
European Journal of Remote Sensing, 2020 In this paper, a novel sun sensor which has been applied on orbit since 2018 is introduced. The remote data transmitted from the satellite is analyzed to show its performance.
Xia Mu +3 more
doaj +1 more source
Error Compensation for Area Digital Sun Sensor [PDF]
Sensors, 2012 Compared to the error factors of the Linear Array Digital Sun Sensor (DSS), those of the Area Array DSS are complicated and methods used for error compensation are not valid or simple enough. This paper presents the main error factors of the Area Array DSS and proposes an effective method to compensate them.
Wen-Yang Li +3 more
openaire +2 more sources
Automatic application object migration in sensor networks
, 2010 Object migration in wireless sensor networks has the potential to reduce energy consumption for a wireless sensor network mesh. Automated migration reduces the need for the programmer to perform manual static analysis to find an efficient layout solution.
McGregor, Anthony James, Hunkin, Paul
core +1 more source