ProSoundWeb Community
Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => LAB Lounge => Topic started by: David Shriver on February 06, 2014, 02:08:37 PM
-
Hello everyone,
I have a very sharp HS intern. I was trying to explain impedance to her and I quickly discovered that I understand it well enough for myself but not well enough to really explain it or teach it. Can someone point me to some resources for teaching this concept?
-d
-
Hello everyone,
I have a very sharp HS intern. I was trying to explain impedance to her and I quickly discovered that I understand it well enough for myself but not well enough to really explain it or teach it. Can someone point me to some resources for teaching this concept?
-d
It depends on how deep you want to go-but here is a starter.
Resistance is the opposition to the flow of DC current.
Impedance is the opposition to the flow of AC current and has 3 elements-resistance-inductance and capacitance-each which has its own phase aspect.
These 3 will add/subtract together (depending on the phase) to give a final impedance number.
This could be either purely resistive-capacitive or inductive or any combination of them.
-
Hello everyone,
I have a very sharp HS intern. I was trying to explain impedance to her and I quickly discovered that I understand it well enough for myself but not well enough to really explain it or teach it. Can someone point me to some resources for teaching this concept?
-d
Hi David,
This is 28 minutes long and the very best demonstration that I have seen: http://techchannel.att.com/play-video.cfm/2011/3/7/AT&T-Archives-Similarities-of-Wave-Behavior (http://techchannel.att.com/play-video.cfm/2011/3/7/AT&T-Archives-Similarities-of-Wave-Behavior)
To fully understand impedance, one must understand the fundamentals of wave behavior. The video shows this brilliantly.
-
Hello everyone,
I have a very sharp HS intern. I was trying to explain impedance to her and I quickly discovered that I understand it well enough for myself but not well enough to really explain it or teach it. Can someone point me to some resources for teaching this concept?
-d
The "Radio Amateur's Handbook", published by the American Radio Relay League, has about the best treatment I've seen of elementary circuit concepts that does not rely on complex variables (much) or calculus. It hardly matters what edition, they all have the basic circuit stuff.
--Frank
-
Hi David,
This is 28 minutes long and the very best demonstration that I have seen: http://techchannel.att.com/play-video.cfm/2011/3/7/AT&T-Archives-Similarities-of-Wave-Behavior (http://techchannel.att.com/play-video.cfm/2011/3/7/AT&T-Archives-Similarities-of-Wave-Behavior)
To fully understand impedance, one must understand the fundamentals of wave behavior. The video shows this brilliantly.
Great stuff, Jason. Thanks for the link.
-
Jason,
That video was great! Thanks for the link.
-
Thanks Jason!!
Hi David,
This is 28 minutes long and the very best demonstration that I have seen: http://techchannel.att.com/play-video.cfm/2011/3/7/AT&T-Archives-Similarities-of-Wave-Behavior (http://techchannel.att.com/play-video.cfm/2011/3/7/AT&T-Archives-Similarities-of-Wave-Behavior)
To fully understand impedance, one must understand the fundamentals of wave behavior. The video shows this brilliantly.
-
" If you can't explain it simply, then you don't understand it well enough " Albert Einstein...........
Great links for the answer.