![]() |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: I think you must be confusing me with someone else. I just went back to look at the messages I sent over the past three months. I could not find a single case where I called you any name at all, much less every name in the book. Here are some of your strictly technical terms for me from just the past couple of weeks: "Fractured Fairytale Physics" "complete nonsense" "truly sad" "hoodwinked by the nonsense" "trying to pull a fast one" "such magic" "no technical value" "truly bizarre" "utter nonsense" "utter lie" "baloney" "sadly amusing" "your tricks" Not a single one of these is "name calling". I never once called you a "guru" or "spoiled brat" or anything else. As someone so accustomed to nit-picking, (oops, excuse me, I should have said so accustomed to examining the fine details) I am sure you readily understand the difference. 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
Cecil Moore wrote: "Fractured Fairytale Physics" "complete nonsense" "truly sad" "hoodwinked by the nonsense" "trying to pull a fast one" "such magic" "no technical value" "truly bizarre" "utter nonsense" "utter lie" "baloney" "sadly amusing" "your tricks" Not a single one of these is "name calling". :-) You are a piece of work, Gene. According to you, I am a nonsense peddler, a sad person, a hoodwinker, a puller of fast ones, a peddler of magic, a liar, and a tricky person. That sure sounds like name-calling to me. -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: There is little mystery about what happens *outside* the discontinuity. There is no "inside" to an impedance discontinuity. The plane is two dimensional. Everything that happens at an impedance discontinuity is "outside" of that plane. There is no place to hide the technical facts. The irradiance equations work fine for detailing the external effects, but they don't give any hint of what happens inside the interface. There is no "inside" to a plane. There is no black box into which you can sweep the technical facts. Cecil, You got it right. There is no "inside" to a plane. There is also nothing that happens exactly in that "plane". The real world does not exist in a "plane". You continue to use ordinary external models to try to determine how the "in-plane" action really occurs. Waves go into the interface (plane, discontinuity, whatever) and they come back out. There is nothing in these ordinary wave models, including the optical irradiance models, that tells exactly what goes on inside the interface. Even the vaunted s-parameters don't say anything about what happens to cause reflections or other properties. They only say what one would find from measurements made external to the "black box". (Yes, that is a term used by H-P in AN 95-1.) Of course those external measurements are exactly what most people would care about, and that is the main reason for creating s-parameter formulation in the first place. What do you suppose your ol' pal Occam would say about a model that requires waves to be created and then immediately canceled? 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: Cecil Moore wrote: "Fractured Fairytale Physics" "complete nonsense" "truly sad" "hoodwinked by the nonsense" "trying to pull a fast one" "such magic" "no technical value" "truly bizarre" "utter nonsense" "utter lie" "baloney" "sadly amusing" "your tricks" Not a single one of these is "name calling". :-) You are a piece of work, Gene. According to you, I am a nonsense peddler, a sad person, a hoodwinker, a puller of fast ones, a peddler of magic, a liar, and a tricky person. That sure sounds like name-calling to me. Did you ever get subjected to sensitivity training at work? I was taught to criticize the idea, never the person. "That is a poor idea", not, "You are an idiot". Did you note that every one of your counter examples required additional words not used by me? 8-) 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
You got it right. There is no "inside" to a plane. There is also nothing that happens exactly in that "plane". Conceptually, it happens exactly *at* that plane. For instance, in the following example, a plane is drawn through the connection points which can be made as physically small as needed - certainly small enough that nothing needs to be hidden inside a black box in order to obfuscate the technical facts. Plane | -----Z01-----+-----Z02----- -----Z01-----+-----Z02----- | This is an example of a primitive one-dimensional interferometer. What do you suppose your ol' pal Occam would say about a model that requires waves to be created and then immediately canceled? He would ask you: "How can waves be canceled if they don't exist in the first place? If they don't exist in the first place, why are anti-reflective thin-film coatings ever required?" Optical physicists go to great lengths with expensive interferometer equipment to cause the steady-state creation and immediate cancellation of wavefronts. It happens all the time as in the following example. The following web page describes an interferometer that creates wavefronts only to have them immediately canceled at the standard output. It even captures the energy reflected from those canceled wavefronts and routes it to the non-standard output. http://www.teachspin.com/instruments...eriments.shtml "Using Dielectric Beamsplitters to find the "missing energy" in destructive interference" "Where is the energy of the light going in an interferometer adjusted for destructive interference? Below is a schematic diagram showing a way to detect the non-standard output of a Michelson interferometer—the *light heading back* toward the laser source. ... Quantitative detection demonstrates that the standard and non-standard outputs of the interferometer are complementary. That is, when interference is destructive at the standard output, it is constructive at the non-standard output." What is it about interferometers that you don't understand? -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
Did you ever get subjected to sensitivity training at work? I was taught to criticize the idea, never the person. If you assert that a statement by a person is a lie, you are calling that person a liar. Most likely, he is not a liar but is merely mistaken. I have been and will be mistaken again. The fact that your "sensitivity training" taught you a more politically correct method of calling a person a liar is just one more way to create a diversion from the technical subject matter. I can just see you drinking at a bar in the old wild west and trying to explain to an armed and angry cowpoke that when you said what he uttered was a lie, you weren't calling him a liar. :-) I treat people the way they treat me, Gene. Cool your ad hominem attacks and I won't have to retaliate. -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
"Waves go into the interface (plane, discontinuity, whatever) and come back out." A conductive plane produces a reflection and a phase reversal. Terman writes in his 1955 opus on page 92: "(Transmission Line with Short-circuited load.) However, the reflection now takes place with reversal in phase of the voltage without change in the phase of the current. The result is that the current in each wave at the load is half the load current, while the voltages in the two waves add up at the load to a resultant of zero voltage as obviously required across a short circuit." Best regards, Richard Harrison, KB5WZI |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
What is it about interferometers that you don't understand? Nothing at all. 8-) 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: Did you ever get subjected to sensitivity training at work? I was taught to criticize the idea, never the person. If you assert that a statement by a person is a lie, you are calling that person a liar. Most likely, he is not a liar but is merely mistaken. I have been and will be mistaken again. The fact that your "sensitivity training" taught you a more politically correct method of calling a person a liar is just one more way to create a diversion from the technical subject matter. I can just see you drinking at a bar in the old wild west and trying to explain to an armed and angry cowpoke that when you said what he uttered was a lie, you weren't calling him a liar. :-) I treat people the way they treat me, Gene. Cool your ad hominem attacks and I won't have to retaliate. Wanna count up who has called someone a liar more often in the past year? I believe I have seen a couple from you just in the past 24 hours. 8-) 73 Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: You got it right. There is no "inside" to a plane. There is also nothing that happens exactly in that "plane". Conceptually, it happens exactly *at* that plane. For instance, in the following example, a plane is drawn through the connection points which can be made as physically small as needed - certainly small enough that nothing needs to be hidden inside a black box in order to obfuscate the technical facts. I highly recommend the lengthy message just posted by Richard Clark. It captures quite nicely what I have been merely hinting at. In summary, "conceptually" simply doesn't cut it for resolving the fine details of reflections. Nothing happens exactly *at* a plane in the real world. And this is not just a "dx" or "dt" type issue. Real things happen over real distances. 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Richard Harrison wrote:
Gene Fuller wrote: "Waves go into the interface (plane, discontinuity, whatever) and come back out." A conductive plane produces a reflection and a phase reversal. A plane drawn through the junction of two different Z0 feedlines also produces a partial reflection. The reflection coefficient at an impedance discontinuity is (Z02-Z01)/(Z02+Z01). -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
Cecil Moore wrote: What is it about interferometers that you don't understand? Nothing at all. Well then, please explain why, in the interferometer example, the energy rejected by the standard output due to destructive interference, is intercepted on its way back to the source and made available as constructive interference at the non-standard output. -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
Wanna count up who has called someone a liar more often in the past year? I believe I have seen a couple from you just in the past 24 hours. A rose by any other name ... Someone said I believe in conservation of power when he knows I don't. That makes him a liar. -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
I highly recommend the lengthy message just posted by Richard Clark. Do you also agree with Richard C's earlier posting where he asserted that the reflections from an anti-reflective thin-film coating are brighter than the surface of the sun? Do you believe the proof he presented in which he blatantly superposed powers? -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: Cecil Moore wrote: What is it about interferometers that you don't understand? Nothing at all. Well then, please explain why, in the interferometer example, the energy rejected by the standard output due to destructive interference, is intercepted on its way back to the source and made available as constructive interference at the non-standard output. I presume by "interferometer example" you mean the experiment outlined on the following web page. http://www.teachspin.com/instruments...eriments.shtml Is there some mystery here? The explanation is very straightforward. No need for any philosophy, magic energy incantations, counter-balanced construction and destruction, or special short-lived created and immediately canceled waves. You can probably add as many of those elements as you like, but Occam says it isn't necessary, and they add nothing of substance. Look carefully at the primary beam splitter in the center of the sketch. Suppose that the "standard output" is at a constructive maximum. Part of the light returning from MA1 is turned by the beam splitter toward the standard output. That light does not undergo any phase shift at the beam splitter, since in the configuration shown the reflection is internal at the "far side" of the beam splitter. Part of the light returning from MB1 travels directly through the beam splitter, and there is no phase shift. The two light beams are in phase as they leave the beam splitter heading toward the standard output. Constructive interference happens. (The mirror positions are adjusted as needed to achieve the maximum.) What then happens to the portion of the light that heads back toward auxiliary beam splitter near the source? (Remember, these are beam *splitters*. I hope there is no question about why light might travel back toward the source.) In this case part of the light returning from MA1 travels directly through the primary beam splitter and it undergoes no phase shift. Part of the light from MB1 is turned by the beam splitter, and in this case there is a phase shift due to the external reflection. In general this phase shift would be around 180 degrees. As the web page points out, other shifts are possible, depending on the exact details of the beam splitter. In any case, we now find two beams that are out of phase heading back toward the source. This of course leads to destructive interference and darkness. Obviously everything shifts depending on the position of the mirrors and the length of the interferometer paths. As mirror MA1 is moved the standard output becomes dark while the auxiliary output becomes bright. I hope there is no question about that part. As I said a day or so ago, there is nothing at all on this web page that is even remotely surprising or controversial. This is all very straightforward and well understood. Is there something else you had in mind when you asked the question? 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: Wanna count up who has called someone a liar more often in the past year? I believe I have seen a couple from you just in the past 24 hours. A rose by any other name ... Someone said I believe in conservation of power when he knows I don't. That makes him a liar. Wow! Must be a rough day. I am going to need to remove my shoes to keep count if you call any more people liars. 8-) 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
Is there some mystery here? The explanation is very straightforward. No need for ... counter-balanced construction and destruction, ... On the contrary, energy cannot be created or destroyed. The "missing energy" from the destructive interference at the standard output appears as constructive interference at the non-standard output. Your assertion above violates the conservation of energy principle. Suppose that the "standard output" is at a constructive maximum. Contrary to what you say above, that cannot happen without destructive interference occurring somewhere else. That constructive maximum is going to exhibit more joules/sec than the laser beam source. Where does the extra energy come from? -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: Is there some mystery here? The explanation is very straightforward. No need for ... counter-balanced construction and destruction, ... On the contrary, energy cannot be created or destroyed. The "missing energy" from the destructive interference at the standard output appears as constructive interference at the non-standard output. Your assertion above violates the conservation of energy principle. Suppose that the "standard output" is at a constructive maximum. Contrary to what you say above, that cannot happen without destructive interference occurring somewhere else. That constructive maximum is going to exhibit more joules/sec than the laser beam source. Where does the extra energy come from? Cecil, I never said that energy could be created or destroyed. I never said anything about the requirements for balancing constructive and destructive interference. I never said anything about "missing energy". Those are simply your strawmen. They add absolutely nothing to the solution. I believe my explanation is correct, and it made no use of those concepts of yours. I suspect you wanted me to stumble all over myself and end up sneaking in something about energy or constructive / destructive. Again, as I have said many times, those concepts are simply not needed beyond the realm of simple-minded hand-waving explanations. If you want to critique my actual explanation, go right ahead. What did I say that was incorrect? Did I fail to account for all of the observables? I have no doubt that I failed to account for all of your strawmen, but that is your problem, not mine. 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
I am going to need to remove my shoes to keep count if you call any more people liars. In your sensitivity training, Gene, surely they taught you how to avoid lying. -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
What did I say that was incorrect? Suppose that the "standard output" is at a constructive maximum. That supposition is incorrect because it supposes that the standard output can contain more energy than the source is supplying. That supposition violates the conservation of energy principle. ... those concepts are simply not needed ... Of course, you could say that God can create energy and destroy energy any time He choses. No other concepts are needed. -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: What did I say that was incorrect? Suppose that the "standard output" is at a constructive maximum. That supposition is incorrect because it supposes that the standard output can contain more energy than the source is supplying. That supposition violates the conservation of energy principle. Why would anyone make such a supposition that violates conservation of energy? I certainly did not. I merely said the output was at a maximum. Do you think that "maximum" is an illegal concept? Does "maximum" imply some specific numerical value? Frankly, I have no idea what your objection is, and I have even less interest. I gave a standard textbook solution in a straightforward manner that gives the correct result, violates nothing, and is not complicated by all sorts of artificial constraints. If you want something more, have at it. 73 Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
Why would anyone make such a supposition that violates conservation of energy? I certainly did not. I merely said the output was at a maximum. No, you didn't. Here's what you said: Suppose that the "standard output" is at a *constructive maximum*. Now do you remember what you said? You implied that constructive interference is present. Do you think that "maximum" is an illegal concept? Does "maximum" imply some specific numerical value? Sorry, you did NOT say "maximum". You said "constructive maximum". A "constructive maximum" is greater than the average output of the source, by definition. If you just said "maximum", it would have been OK. When you added "constructive" it means that, by definition, the output is greater than the average source power. -- 73, Cecil http://www.w5dxp.com |
Standing-Wave Current vs Traveling-Wave Current
Cecil Moore wrote:
Gene Fuller wrote: Why would anyone make such a supposition that violates conservation of energy? I certainly did not. I merely said the output was at a maximum. No, you didn't. Here's what you said: Suppose that the "standard output" is at a *constructive maximum*. Now do you remember what you said? You implied that constructive interference is present. Do you think that "maximum" is an illegal concept? Does "maximum" imply some specific numerical value? Sorry, you did NOT say "maximum". You said "constructive maximum". A "constructive maximum" is greater than the average output of the source, by definition. If you just said "maximum", it would have been OK. When you added "constructive" it means that, by definition, the output is greater than the average source power. OK, remove the word "constructive" and simply leave "maximum". The same description still holds. Feel better now? Since you are reduced to nit-picking the exact choice of words, it appears you have nothing constructive to add (pun intended). I gotta get one of the special dictionaries you have. The one that contains all of those "by definition" statements you like to use. 73, Gene W4SZ |
Standing-Wave Current vs Traveling-Wave Current
Gene Fuller wrote:
OK, remove the word "constructive" and simply leave "maximum". Feel better now? Correcting conceptual violations of the conservation of energy principle always makes me feel better. Thank you for your rational response. -- 73, Cecil http://www.w5dxp.com |
All times are GMT +1. The time now is 04:56 PM. |
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com