'Glitch' diaporamas de présentation

Lecture 9 Sensors, A/D, sampling noise and jitter

Lecture 9 Sensors, A/D, sampling noise and jitter. Forrest Brewer. Light Sensors - Photoresistor. voltage divider V signal = (+5V) R R /(R + R R ) Choose R=R R at median of intended measured range Cadmium Sulfide (CdS) Cheap, relatively slow (low current) t RC = C l *(R+R R )

891 views • 63 slides

CSV881: Low-Power Design Gate-Level Power Optimization

CSV881: Low-Power Design Gate-Level Power Optimization. Vishwani D. Agrawal James J. Danaher Professor Dept. of Electrical and Computer Engineering Auburn University, Auburn, AL 36849 vagrawal@eng.auburn.edu http://www.eng.auburn.edu/~vagrawal. Components of Power. Dynamic

753 views • 59 slides

Glitches and precession

Glitches and precession. What is a glitch?. A sudden increase of rotation rate (limits are down to <40 sec in Vela). ATNF catalogue gives >130 normal PSRs with glitches. The most known: Crab and Vela. ?? / ? ~10 -9 - 10 -6.

577 views • 57 slides

Glitches and precession

Glitches and precession. What is a glitch?. A sudden increase of rotation rate. ATNF catalogue gives >130 normal PSRs with glitches. The most known: Crab and Vela. ?? / ? ~10 -9 - 10 -6. Spin-down rate can change after a glitch. Vela is spinning down faster after a glitch.

443 views • 44 slides

Chapter 7

Chapter 7. The Design of Sequential Systems. Continuing Examples ( CE ) CE7. A Mealy system with one input x and one output z such that z = 1 at a clock time iff x is currently 1 and was also 1 at the previous two clock times.

672 views • 40 slides

Pulsar Studies at Urumqi

Pulsar Studies at Urumqi. Na Wang Urumqi Observatory, NAOC. History of Urumqi Observatory. Nov 1957: Founded, Urumqi Satellite Observation Station, Chinese Academy Of Sciences (CAS) Oct 1987: Urumqi Observatory, CAS

506 views • 39 slides

Glitches and precession

Glitches and precession. What is a glitch?. A sudden increase of rotation rate. ATNF catalogue gives ~120 normal PSRs with glitches. The most known: Crab and Vela. ?? / ? ~10 -9 - 10 -6. Spin-down rate can change after a glitch. Vela is spinning down faster after a glitch.

617 views • 37 slides

Glitchology

Glitchology. Lila Warszawski & Andrew Melatos. Penn. State, June 2009. The agenda. Neutron star basics Pulsar glitches, glitch statistics Superfluids and vortices Glitch models Gravitational waves from glitches. Neutron star composition. crust. electrons & ions. inner crust. 0.5 km.

346 views • 34 slides

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????????????. Timing irregularities. Timing noise: random fluctuation in pulse frequency with ? ? / ? ? 10 -9 Glitch: pulse frequency suddenly increases with 10 -9 ? ? ? / ? ? 10 -6. (Lyne et al. 2000). Glitches in the Crab pulsar. ? Small glitch/3yr ? Decay rapidly

563 views • 33 slides

CMPUT329 - Fall 2003

391 views • 27 slides

Data Archiving and IT Issues for PBO

Data Archiving and IT Issues for PBO. Douglas Neuhauser UC Berkeley Seismological Lab Northern California Earthquake Data Center. Plate Boundary Observatory. Measure broadband deformation across the western US. Measure strain rate in 4D.

343 views • 25 slides

Glitches

Glitches. Discussion D2.7 Example 10. Source of Glitches. 1. 1. 1. 1. 0. 0. 1. Source of Glitches. 1. 1. 1. 1. 1. 0. 1. Source of Glitches. 1. 1. 0. 1. 1. 1. 1. Source of Glitches. 1. 0. 0. 1. 1. 1. 1. Source of Glitches. 1. 0. 0. 1. 1. 1. 1.

287 views • 15 slides

Listening to glitches

223 views • 11 slides