### Author Topic: Impedance matchings  (Read 6614 times)

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##### Impedance matchings
« on: August 20, 2009, 17:38:25 pm »
In here I will discuss impedance matching .

Everybody should learn this from allaboutcircuits.com , anybody is able to learn this ,

Its time to learn these things and to use them , those that stay ignorant and refuse to evolve their way of thinking should find a new hobby .

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##### Re: Impedance matchings
« Reply #1 on: August 21, 2009, 20:38:57 pm »
In here I will discuss impedance matching .

Everybody should learn this from allaboutcircuits.com , anybody is able to learn this ,

Its time to learn these things and to use them , those that stay ignorant and refuse to evolve their way of thinking should find a new hobby .

Ok, Dankie.

So what is the impedance we are looking for?

Steve

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##### Re: Impedance matchings
« Reply #2 on: August 22, 2009, 05:20:06 am »
In here I will discuss impedance matching .

Everybody should learn this from allaboutcircuits.com , anybody is able to learn this ,

Its time to learn these things and to use them , those that stay ignorant and refuse to evolve their way of thinking should find a new hobby .

Ok, Dankie.

So what is the impedance we are looking for?

Steve

First of all , nothing , just learn the basic math and prepare .

This is like the simplest  thing , you need to know the circle thing with angular speed and trigonometrie with triangles .

I still did not learn this at school , I will this year tho . But I did learn from all about circuits .

Those that have problems understandg the impedance and reactive stuff come here and ask your questipn . I have difficulty at first but once u get gooin you oly get better

You should make a math section Stevie ,so the ppl that have difficulty can ask questions .

Also , the Euler number needs to be covered and the Tau constant .

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##### Re: Impedance matchings
« Reply #3 on: October 13, 2009, 22:44:34 pm »
It has become clear to me that there is some algebra involved here , and the tubes ARE mechanically vibrating , theres our first parameter .

There is 2 parameters here that must be matched from these sentences .

I just love how its all spelled out very clearly .
« Last Edit: October 13, 2009, 23:54:13 pm by Dankie »

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##### Re: Impedance matchings
« Reply #4 on: October 19, 2009, 01:37:00 am »
http://waterfuelcell.org/phpBB2/viewtopic.php?t=1309

I will investigate what is known as''sound'' with some new modern equipment on the low budget tho, since there is alternating Q charge from those triplen tubes from inner to outer , the middle tube is in the best condition possible to start oscillating .

If it oscillates , it will create changing ''water pressure'' aka ''sound'' .  This will also correspond to maximum ''physical movement'' . There is also mention of how hitting the cell in the puharich papers can make the process run good again , this may be revealing .

Because thats what music is really , an digital recording of voltage levels being converterd to move a magnet that moves the cone up and down , wich changes air pressure and your ear piking those up as sound for your brain to decipher , it works in air just like it works in water .

I wont be ''trying my luck'' with stuff that is ''unworking''  , nothing can be copied , it must be understood first then matched , with 'efficiency' , not some 1000 watt powerhog just to excite a resonance .

« Last Edit: October 19, 2009, 04:28:45 am by Dankie »

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##### Re: Impedance matchings : hydrophones
« Reply #5 on: October 19, 2009, 04:27:19 am »
http://shop.ebay.ca/?_from=R40&_trksid=p3907.m38.l1313&_nkw=hydrophone&_sacat=See-All-Categories

A Hydrohphone is what they are called , you need this to perform the bbreaking glass experiment with a tube in water , calculating it and tuning it will be impossible .

http://shop.ebay.ca/?_from=R40&_trksid=p3907.m38.l1313&_nkw=hydrophone&_sacat=See-All-Categories

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##### Re: Impedance matchings
« Reply #6 on: October 21, 2009, 04:03:44 am »
feature=player_profilepage

I asked this guy if the Hydrophone saturates immediatly w/e the frequency or if it is sensitive enough to give me a good plot of whats going on with the acoustics of my tubes .

I have my fingers crossed .

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##### Re: Impedance matchings
« Reply #7 on: October 21, 2009, 18:11:12 pm »

codewizstw
...

Re: Hey dude
...
Re: Hey dude
Aquarian Audio products does not sell the same one I used anymore. The newer one that is roughly equivalent is about twice as expensive. Even still it is about 10x cheaper than serious instrument quality hydrophones. It is possible to make your own hydrophone much more cheaply according to tutorials online, but I never tried it myself.

The frequency and amplitude of the electrical signal will both depend on the frequency and power of the sound in the water that you are measuring. The best think you can do is get a datasheet on the part direct from the company selling it.

I may have used a small amplifier in the videos I posted showing the oscilloscope. I don't remember exactly. I seem to recall that I could hook up the hydrophone directly to the oscilloscope with some success, but if the sound you are measuring is not very loud you will probably need some amplifier circuits.

good luck and have fun.