Nice job btw, how steady is the fan? Can you set the strobe to a constant rate and consistently get the effect or are you controlling the strobe rate from the fan's RPM signal?
He's strobing a light so that you only see the fan at given intervals. It makes the fan appear to be spinning very slowly even though it's going full speed.
@36mauro36 no whats happening is that the camera's shutter speed is at such that it nearly matches the fans spinning speed so it appears slow. its the same effect like on TV when a car's wheel appears to be spinning backwards even though the car is moving forwards.
@TheGuitardude789 Normally, that would be correct. However, in this particular video, what is actually happening is a light (hence 'stroboscope' (as in strobe)) is being flickered on and off very fast to give the same effect that you described. Stroboscopes work with the human eye, though. They're intended for use by engineers and such to allow them to inspect things such as aircraft engines whilst they're running.
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I gave you a thumbs up because of all the people who don't know what a stroboscope is.
TheAdmiralPancake 4 months ago
pfff thats a terrible demo of something pretty cool, you should show the equipment!
pr4wn5tar 8 months ago
when i saw this i knew it was that frames per second trick :D
ComputerTutorialPro 8 months ago
Nice job btw, how steady is the fan? Can you set the strobe to a constant rate and consistently get the effect or are you controlling the strobe rate from the fan's RPM signal?
typodaemon 9 months ago
He's strobing a light so that you only see the fan at given intervals. It makes the fan appear to be spinning very slowly even though it's going full speed.
typodaemon 9 months ago
I really dont get it.... is supposed you use a microcontroller PIC to drive the speed of fan with PWM??
36mauro36 10 months ago
@36mauro36 no whats happening is that the camera's shutter speed is at such that it nearly matches the fans spinning speed so it appears slow. its the same effect like on TV when a car's wheel appears to be spinning backwards even though the car is moving forwards.
TheGuitardude789 9 months ago
@TheGuitardude789 Normally, that would be correct. However, in this particular video, what is actually happening is a light (hence 'stroboscope' (as in strobe)) is being flickered on and off very fast to give the same effect that you described. Stroboscopes work with the human eye, though. They're intended for use by engineers and such to allow them to inspect things such as aircraft engines whilst they're running.
Kookas 7 months ago
Does that have a four pin female connecter?
Unasigad 1 year ago
it's not work i have so fan on my pc and now is new pc fan
berkantschool 1 year ago
I finally get how this works.... 5*, I'm gonna go test the PWM on my nicer flashlights.
ossumguywill 2 years ago
What a nice
TheHalflife123 2 years ago
haha, nice
Splooshiba 2 years ago
wtf?
xXxmidgexXx 2 years ago
@xXxmidgexXx lol
Evrythn1outof8infnty 1 year ago