What is Synchronization: Definition and 78 Discussions

Synchronization is the coordination of events to operate a system in unison. For example, the conductor of an orchestra keeps the orchestra synchronized or in time. Systems that operate with all parts in synchrony are said to be synchronous or in sync—and those that are not are asynchronous.
Today, time synchronization can occur between systems around the world through satellite navigation signals.

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  1. M

    Confusion about synchronization

    Hello, Suppose, in moving train Observer O is at middle point M, and two clocks is situated at A(rear) and B(front). O has a clock. I have confusion about time of A and B after synchronization. I have two scenario, please, tell me which one is right. (1) If we assume that one way...
  2. R

    3 GPS Satellites & Receiver Clock Synchronization

    Please help me in removing my mistake, since i see 3 satellite required to locate an place on Earth and synchronization of receiver clock with gps satellite. [ I have assumed at any moment a place on Earth will see certain satellite at a certain distance from it in the sky. That is a...
  3. L

    Synchronization of hydraulic pistons

    Hi, I am planning to build a garage to park my two cars. Since I don't have much space for two vehicles, I am planning to build an underground car parking system with two levels. For this, I need 4 synchronized cylinders for 4 corners. Load will be approx. 6000 lbs. Can anyone of you...
  4. R

    Does gps receiver need synchronization with atomic clock

    with synchronization what the gps receiver does is compute time difference between his current time (synchronized with atomic clock onborad each satellite) and the time tag of a satellite when the signal was sent. This difference gives the travel time of an signal from the satellite and hence...
  5. L

    Is Einstein synchronization trivially true?

    Einstein synchronization, as it is conventionally defined, depends on subtle issues like the one-way speed of light. But the slow transport of clocks produces the same simultaneity convention. And I would think that the slow transport convention is a tautology. After all, if time only changes...
  6. E

    Transitivity condition for Einstein synchronization and the one-way light speed

    1) Consider that one way light speed is anisotropic. 2) Use the Einstein method to synchronize all the watches by the watch located at (x,y,z)=(0,0,0). Now, all the watches are synchronized by the watch at (0,0,0) but they are not necessarily synchronized with each-other (Consider watches...
  7. P

    Synchronization of Earth clocks

    If we have two clocks, one stationary at surface of Earth, and the other one very slowly moved at the surface of Earth, in the direction of Earth rotation, the clock that made the trip should be running ahead of the same stationary clock once it makes a complete circle and stops where it started...
  8. bcrowell

    Synchronization method with possible QG applications

    E. Minguzzi, "Clocks' synchronization without round-trip conditions," http://arxiv.org/abs/1009.3005 abstract: "Poincare-Einstein's synchronization convention is transitive, and thus leads to a e consistent synchronization, only if some form of round-trip property is satisfied. An improved...
  9. X

    Medical Effects of Caffeine on Brainwave Synchronization?

    I know that Caffeine gives a boost in the amount of Beta-Waves in the brain, but what does it do to the Synchronicity of brainwaves between the 2 Hemispheres? It's well known that a brain with higher synchronicity is more efficient than a brain with uneven brainwave synchronicity... Since...
  10. B

    Relativity train and clock synchronization

    I'm trying to understand the relativity train thought experiment. One of the key concepts seems to be that the clocks at the front and back of the train are "synchronized" such that the clock at the front of the train is running slightly behind the clock at the back of the train (as seen by an...
  11. D

    Generator synchronization

    i am BSEE student, my project study is to synchronize the generator of an hospital, it have a one 313KVA standby-power diesel gen.,and three 100kva transformer.The generator system is operated manually and no ATS or UPS. one more new building is being build so the transformer will be upgrade...
  12. S

    Synchronization procedure of alternators

    could you please explain how to synchronize an incoming alternator with running system.I heard about ''dark lamp" or 'bright' method.But what actually the process is?
  13. K

    How do metronomes synchronize?

    Synchronization Phenomena: (Many of you probably have seen this, but it's still quite interesting) So I'm wondering how "exactly" this thing work? I have sort of a vague understanding... but not completely sure. Thanks for commenting & explanations!
  14. B

    External clock synchronization and sbsolute motion

    "External" clock synchronization and sbsolute motion The “external” clock synchronization goes as follows: Consider that the clocks C(x) located at the points M(x) of the OX axis of I inertial reference frame read all zero (t=0) as a result of a standard (Einstein) clock synchronization...
  15. B

    Synchronization Gauge Definition | What is it?

    Please give me a defnition of the concept "synchronization gauge" I find in papers.
  16. B

    Bondi k and everyday clock synchronization

    Dr.Greg has presented on the Forum the Lorentz-Einstein transformations (LET) expressed as a function of k=[(1+v/c)/(1-v/c)]1/2. The important fact is that the LET are clock synchronization independent. Because special relativity is a very flexible chapter of physics, I have tried to express...
  17. B

    Non-standard clock synchronization

    Selleri proposes the following transformation equations x=g(x'-vt') t=t'/g g=gamma. Einstein's clock synchronization requires t(E)=t(e)+x/c t(E) reading of a clock located at a distance x from the origin, t(e) reading of a clock located at the origin when the synchronizing light signal is...
  18. E

    The synchronization procedure

    The idea is that you have a clock at the origin of some frame O. In order to synchronize this clock with 2 other clocks placed at x = -X and x = X (one dimensional) these two clocks are fixed to show the time t = x/c and they start ticking when they receive a light flash from when the clock at...
  19. D

    Non-Linear Control System and Motor synchronization

    Hello, I am currently trying to design a system that will sychronize two propellor motors, and I must design using the following equation: w'*I + (w^2*r^2*p*S*C_d)/(2) = T_t + T_ss w' = Angular acceleration I = moment of inertia w = angular velocity r = radius of blade p = air density...
  20. B

    Clock Synchronization: Teaching Special Relativity

    Please tell me if it is compulsory to start teaching special relativity with describing the clock synchronization procedure? Which is the best way to do it in your opinion? Thanks
  21. B

    Is Clock Synchronization Truly Possible According to Einstein's Theory?

    Consider the clocks C(0)(x=0,y=0) ticking and clock C(x,y=0) stopped and fixed to read t=x/c. Source S(0,0) emits a light signal towards clock C. Arriving at its location the light signal starts clock C and we say that C(0) and C(x,0) are synchronized a la Einstein. Is there something wrong in...
  22. B

    Clock synchronization problem

    Is it possible to realize a situation in which all the synchronized and ticking clocks of a given inertial reference frame read a zero time? Thanks
  23. T

    Why Do Women's Menstrual Cycles Sync Up?

    http://uk.answers.yahoo.com/question/index?qid=20070405141737AAdWhgZ Amazing (if true)!I didn't know that... Please, do comment.
  24. B

    Radar echo and clock synchronization

    Please help me in the folowing problem: It is well known that the radar echo (police radar) establishes a relationship between the period T(e) at which a stationary observer emits successive light signals and the period T(r) at which he receives them back after reflection on an object that...
  25. B

    Is clock synchronization compulsory

    Working with clocks we have to perform an initialization (to ensure that when the origins of the involved inertial reference frames are located at the same point in space theirs clocks read t=t'=0) and a synchronization of the clocks of the same inertial reference frame ensuring that they...
  26. B

    Clock Synchronization: Einstein's Procedure & Others

    is it correct to state that all the clocks of a given inertial reference frame, synchronized in accordance with Einstein's synchronization procedure display the same running time? Do you know other synchronization procedures which lead to the same result? sine ira et studio
  27. A

    Einstein's Clock Synchronization Convention

    Just a friendly reminder, the first postulate of the special theory of relativity, namely that the speed of light c is the same in all inertial frames, only holds true in view of Einstein's clock synchronization convention. There is no experimental basis whatsoever for preferring this convention...
  28. J

    Clock Synchronization: How to Measure Photon Velocity

    Hi, I have been thinking that in order to actually prove Einstein's second postulate of SR about the speed of light (and SR in general) you need to make a one-way measurement of the velocity of individual photons. To do this the clocks at the two ends of the path have to be synchronized. My...
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