|Quoting CdfMxTech (Reply 3):|
i believe simultaneous strobes are merely coincidence on those boeing airplanes u mentioned. some planes like the dc10 had a sync circuit to make sure the flash in unison.
Yes, the old sync circuits....I never saw a DC-10 unplugged, but I can just imagine as many a lighting system used them. The number of steps to follow in stepping up the power for the light and down for the control circuit was mind-boggling. Too many moving parts, too...
With the newer LEDs the circuit will have just a low-voltage logic chip to send a low voltage "trigger" signal -- a step up from the logic circuits triggering the high-voltage rapid discharge flash...But neither one should go "out of sync"- timing circuits are inherent. Assuming more than one signal box on a power supply circuit (or even 2 differenct circuits), they might power up slightly off. But they will never flash at a different rate, unless at extremely
Now the old rotating beacons.. Sure, they went out of sync...again, too many moving parts. But they worked good for many years...
And I must say, I got quite a kick out of the variant terminology dialogue... function vs. operation!!!
I love seeing the differences in language.
Yeah, Mel, I call the anti-cols beacon's too...I guess that's old mariner's terminology. To me, if it's a navigation warning in a horizontal plane it's a beacon, if it's flashing for some other reason it's (usually) a strobe. I don't try to distinguish by operation, not enough people know the difference between a beacon and a strobe, and if you say LED
most people think of a digital clock...But everyone seems to know that the light in a lighthouse is a beacon, and it tells you where (not) to go. But among other elec techs I guess I just say lamp...unless it's an LED
Peace & Language,