High Energy Dye Laser Power Supply

Рет қаралды 10,776

7 жыл бұрын

High energy dye laser - part 2. An in depth description of the high voltage, capacitor charging system for flash lamp pumped lasers.

Пікірлер: 46

@jurskas7965 7 жыл бұрын

Very nice. KZfaq needs more experts willing to share like this. Wonderful

@sunnygupta1136 4 жыл бұрын

One of the best videos. Zero fluff. Humble presenter. Learning heaps!

@Electronics61 3 жыл бұрын

Many thanks for Great advice on fast high voltage capacitors and safety of related high voltage.

@miklov 5 жыл бұрын

Your lab is so neat and tidy but still so capable.

@markyo99 7 жыл бұрын

Thank you so much for freely sharing the details of your dye laser.

@Dgerma1 7 жыл бұрын

Brilliant use of........ everything! Thanks for sharing!

@Doctorbasss 7 жыл бұрын

Again... just WOW!.. awsome work. your lab is very nice btw

@David.C.Velasquez 7 жыл бұрын

Beautiful work

@thesmallestatom 7 жыл бұрын

nice multi rotor. you're the best.

@TomKappeln 4 жыл бұрын

My first Laser was a 1 meter HeNe Laser from Spectra Physics, in the end 70's ... I was something arround 15 years old ... :-) Thinking of this monster makes me smile every time. A Laser this strong was not common these times, for a normal child. It was a present from Spectra Physics Germany. Had him on some days, police was showing up, someone in the town 5 miles away called them. lol Good old times ! All hail to Mr. Charles Hard Townes (and Theodore Maiman) !

@TechIngredients 4 жыл бұрын

I met him... impressive.

@TomKappeln 4 жыл бұрын

@@TechIngredients Just wow !

@TomKappeln 4 жыл бұрын

@@TechIngredients The only guy i met, was Leonard Nimoy in 2006 ... To funny for him, that i called him 2 times "Mr. Spock" ... Gave him giggles. lol Could hang arround with him for some hours, here in Germany. Also impressive !

@Electronics61 3 жыл бұрын

Very great video.

@YodaWhat 5 жыл бұрын

+Tech Ingredients -- Yes siree, you da man on the high voltage equipment and dangers! :) IF I had the kind of power supply you have for your laser, I would be doing research on pulsed fusion, where I've had a rather interesting insight.

@rogeronslow1498 6 жыл бұрын

Excellent video. Thank you.

@TechIngredients 6 жыл бұрын

You're welcome!

@JlerchTampa 6 жыл бұрын

I built a 600mm vacuum chamber for optical coating telescope mirrors mostly because I was told it was 'impossible' and would never work. I have to ask, were you told similar thoughts about building a Dye laser? Also, using solenoids to trigger the pulse by controlling the pressure is brilliant and 'obvious' once understood. (obvious in quotes as most ingenious solutions are only obvious after seeing it work and understanding why it does! ) Inspiring craftsmanship, thank you for sharing!

@TechIngredients 6 жыл бұрын

No. Back when I was 15, my parents thought my first attempt to construct a laser was quirky, but when I succeeded they made it clear that the sky's the limit and I never looked back. I make an effort to encourage everyone I work with to shoot high (but not wildly). Their success when they do well is very rewarding.

@dannyboy21169 6 жыл бұрын

this is danny here at fenix technology thanks for the good word about our flash lamps

@TechIngredients 6 жыл бұрын

You're welcome. How did you here about that?

@dannyboy21169 6 жыл бұрын

i just happened to come across it by luck. by the way great video

@FraLin 3 жыл бұрын

@@TechIngredients" hear about that" isn't it? I am German....

@fjs1111 2 жыл бұрын

@@TechIngredients He doesn't work at fenix, he is looking for attention. KZfaq morons out there :-)

@nicktohzyu 6 жыл бұрын

can't find on google how these capacitors are designed, can you explain the key ideas to overcome the problems mentioned?

@nicktohzyu 6 жыл бұрын

what about having a controllable input DC supply (~300v) through a h-bridge into the transformer?

@mohammadadankhan8053 Жыл бұрын

So much instrumental project.plz made some short instrument and get very powerfull laser puls.afterall nice video

@rjk7104 6 жыл бұрын

What solenoids are you using on the vacuum side? I sure could use some good vacuum-rated, high flow solenoids!

@TechIngredients 6 жыл бұрын

I'll take a look and put that up. I can't remember offhand.

@thethoughtmaster 5 жыл бұрын

Graet work. You might know the answer to a question I asked from Quora, Do Capacitors make a ticking noise when charging, is it caused when the inside is expanding? Is that how they should sound at half way through?

@TechIngredients 5 жыл бұрын

Any sound produced when charging a capacitor is a bad thing. Either micro discharges are occurring that will eventually ruin the capacitor or there is movement of the plates that will be far more violent during discharging and that will also ruin the capacitor.

@thethoughtmaster 5 жыл бұрын

@@TechIngredients Thanks for answering. So either these are faulty or I am charging them wrong, what one? I was charging them with the recommended resistor 1Kohm 0.25 Watt +/-5%, that was too slow for the 1 Farad capacitor and it was making a ticking noise, then I tried 1Kohm 1 Watt +/-5% and the same problem, it gets half way and stops then starts making a noise. Should I charge them faster or am I setting up the Capacitor wrong with the wiring. I have wasted £110 on these Nakamichi caps and put them in storage for a year.

@TechIngredients 5 жыл бұрын

I can't say.

@TheMightyZwom 4 жыл бұрын

@@thethoughtmaster "it gets half way and stops then starts making a noise" That doesn't sound good... So I'd assume they have a leakage resistance of 1kOhms as well, which isn't normal (far too low). Without actually doing tests on the capacitors, my first guess would be that they are acutally damaged / broken...

@thethoughtmaster 4 жыл бұрын

@@TheMightyZwom Thanks, I think the seller was a scammer or received them damaged. The seller did not answer me.

@movax20h 5 жыл бұрын

Not to dismiss a lot of work and the impressie setup, but paralleling two 40A relays doesnt realy produce 80A relay. Please be careful about that. You can make microcontroller measure the voltage via high voltage resistive network to make charging more accurate and not relay much on time integration. The trick with shaded transformer to limit inrush current is nice. Using welding transformer would also work well.

@TechIngredients 5 жыл бұрын

Your right about the limits regarding the contacts, but the average thermal load can be shared.

@movax20h 5 жыл бұрын

Tech Ingredients Yes. They will last shorter because during switching they will arc much more, as there will be moment when only one relay conducts. It is not big issue with AC, but could be a concer with DC. In fact with DC they might never open, depending on a voltage. I do not doubt you know what you are doing. The bleading resistor bank to discharge capacitor is also interesting. Great fail safe mechanism with spring loaded normally closed switch with big air gap.

@TechIngredients 5 жыл бұрын

The rep rate is only a few pulses per minute. We can afford to be pretty cruel especially with AC.

@thorstendressler6430 3 жыл бұрын

Safe the Argon-Botle!

@davegeorge7094 7 жыл бұрын

What's the model and QTY OF your HV diodes? Man 4 of the caps = 100KW for 1 sec. The coax HV delivery design is dead nuts.. Why not use krypton gas. It gives lots of 780nm light? What type of lens did you choose? Thanks

@TechIngredients 7 жыл бұрын

Once the lamps are driven hard enough, they essentially operate as thermal emitters and the gas type becomes progressively less important. At the highest power that they will survive, the gas type becomes irrelevant. Krypton is also FAR more expensive and that adds up in a flowing gas system..

@BurstNibbler 7 жыл бұрын

genius

@rizdalegend 5 жыл бұрын

You make it seem like common sense, all while completely confusing me

@TechIngredients 5 жыл бұрын

Completely? Is there something specific that you would like to know more about?

@multiforc271 Жыл бұрын

horrible horrrible horrible horrible camera movement ! not only gave me headache, but also distracted me so much from your voie and what u were saying, assuming there is something imporant that the camera is moving and giving close up and zooms.... but thank you for the knowledge, if there was a decent video, it could actually be a nice video over all, but camera movement actually damaged the amount of information that video has deliveed.