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#41
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High SPL Treble
Peter Larsen wrote in message ...
snip ionophone design snip Where can I find ionophones? |
#42
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High SPL Treble
Peter Larsen wrote in message ...
snip ionophone design snip Where can I find ionophones? |
#43
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High SPL Treble
Peter Larsen wrote in message ...
snip ionophone design snip Where can I find ionophones? |
#44
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High SPL Treble
Peter Larsen wrote in message ...
snip ionophone design snip Where can I find ionophones? |
#45
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High SPL Treble
Curious wrote:
Peter Larsen wrote in message ... snip ionophone design snip Where can I find ionophones? You can't. Someone seems to reinvent them every 12 years and promptly go bankrupt. The idea is interesting but has all kinds of practical problems, including usually some aspect of ozone related health hazard. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#46
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High SPL Treble
Curious wrote:
Peter Larsen wrote in message ... snip ionophone design snip Where can I find ionophones? You can't. Someone seems to reinvent them every 12 years and promptly go bankrupt. The idea is interesting but has all kinds of practical problems, including usually some aspect of ozone related health hazard. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#47
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High SPL Treble
Curious wrote:
Peter Larsen wrote in message ... snip ionophone design snip Where can I find ionophones? You can't. Someone seems to reinvent them every 12 years and promptly go bankrupt. The idea is interesting but has all kinds of practical problems, including usually some aspect of ozone related health hazard. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#48
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High SPL Treble
Curious wrote:
Peter Larsen wrote in message ... snip ionophone design snip Where can I find ionophones? You can't. Someone seems to reinvent them every 12 years and promptly go bankrupt. The idea is interesting but has all kinds of practical problems, including usually some aspect of ozone related health hazard. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#49
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High SPL Treble
Peter Larsen wrote in message ...
The idea is interesting but has all kinds of practical problems, including usually some aspect of ozone related health hazard. Then why can't they use IR lasers to heat the air and produce sound? This would kill the ozone problem. |
#50
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High SPL Treble
Peter Larsen wrote in message ...
The idea is interesting but has all kinds of practical problems, including usually some aspect of ozone related health hazard. Then why can't they use IR lasers to heat the air and produce sound? This would kill the ozone problem. |
#51
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High SPL Treble
Peter Larsen wrote in message ...
The idea is interesting but has all kinds of practical problems, including usually some aspect of ozone related health hazard. Then why can't they use IR lasers to heat the air and produce sound? This would kill the ozone problem. |
#52
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High SPL Treble
Peter Larsen wrote in message ...
The idea is interesting but has all kinds of practical problems, including usually some aspect of ozone related health hazard. Then why can't they use IR lasers to heat the air and produce sound? This would kill the ozone problem. |
#53
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#54
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#56
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#57
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High SPL Treble
Electromagnet wrote:
[probably quoting radium troll] Then why can't they use IR lasers to heat the air and produce sound? This would kill the ozone problem. No. Read up on the ionophone prior to asking how to circumvent what makes it fail miserably in the marketplace. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#58
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High SPL Treble
Electromagnet wrote:
[probably quoting radium troll] Then why can't they use IR lasers to heat the air and produce sound? This would kill the ozone problem. No. Read up on the ionophone prior to asking how to circumvent what makes it fail miserably in the marketplace. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#59
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High SPL Treble
Electromagnet wrote:
[probably quoting radium troll] Then why can't they use IR lasers to heat the air and produce sound? This would kill the ozone problem. No. Read up on the ionophone prior to asking how to circumvent what makes it fail miserably in the marketplace. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#60
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High SPL Treble
Electromagnet wrote:
[probably quoting radium troll] Then why can't they use IR lasers to heat the air and produce sound? This would kill the ozone problem. No. Read up on the ionophone prior to asking how to circumvent what makes it fail miserably in the marketplace. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#61
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#62
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#63
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#64
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#66
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#67
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#69
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High SPL Treble
(Curious) wrote in message . com...
(Dick Pierce) wrote in message . com... Further, an IR laser won't do it. You need something of sufficient energy, and something of IR wavelengths is somy not energetic enough (even a megawatt IR laser won't do: it's an issue of wavelength, not intensity). Oh. I thought any thermal expansion and contraction of the air would do the job. And precisely why is the air going to expand and contract? What do we think the absorbtion of air is at these sorts of wavelengths over a region small enough to make high-frequency output possible. If you're talking 20 kHz, you better have pretty much all of your work don in a region that's smaller than 1/2". How are you going to make the air contract below ambient atmospheric pressure, which is trivially done with ordinary, mundane mechanical means? IR heats the air and the "speaker" could rely on that heat to expand the air and subsequently contract it thus producing sound waves. Right? In the near infrared, the air is pretty much transparent. And certainly, over a region extending 1/2" it's VERY transparent. So no power is going to be transferred to the air. BTW Would 340 nm light have enough energy for this? 340 nm is approaching ultraviolet. Where are you going to get a source of that wavelength of sufficient power? What's the absorbtion of air over 1/2"? Precisely WHAT problem are you trying to solve? If it's high-amplitude linear REproduction of high-frequency acoustical energy in a highly linear fashion such that it can be used as a transducer covering a fairly wide bandwidth, all this nonsense about ionophones and IR heating of the air is a really bad idea. |
#70
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High SPL Treble
(Curious) wrote in message . com...
(Dick Pierce) wrote in message . com... Further, an IR laser won't do it. You need something of sufficient energy, and something of IR wavelengths is somy not energetic enough (even a megawatt IR laser won't do: it's an issue of wavelength, not intensity). Oh. I thought any thermal expansion and contraction of the air would do the job. And precisely why is the air going to expand and contract? What do we think the absorbtion of air is at these sorts of wavelengths over a region small enough to make high-frequency output possible. If you're talking 20 kHz, you better have pretty much all of your work don in a region that's smaller than 1/2". How are you going to make the air contract below ambient atmospheric pressure, which is trivially done with ordinary, mundane mechanical means? IR heats the air and the "speaker" could rely on that heat to expand the air and subsequently contract it thus producing sound waves. Right? In the near infrared, the air is pretty much transparent. And certainly, over a region extending 1/2" it's VERY transparent. So no power is going to be transferred to the air. BTW Would 340 nm light have enough energy for this? 340 nm is approaching ultraviolet. Where are you going to get a source of that wavelength of sufficient power? What's the absorbtion of air over 1/2"? Precisely WHAT problem are you trying to solve? If it's high-amplitude linear REproduction of high-frequency acoustical energy in a highly linear fashion such that it can be used as a transducer covering a fairly wide bandwidth, all this nonsense about ionophones and IR heating of the air is a really bad idea. |
#71
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High SPL Treble
Dick Pierce wrote:
In the near infrared, the air is pretty much transparent. And certainly, over a region extending 1/2" it's VERY transparent. So no power is going to be transferred to the air. And even if there was there is the issue of cooling it fast enough for it to contract as suggested by our questionee who has a remarkable resemblance to radium's style. If nothing else breaks the concept, this does. It is of course most interesting to read all the other ways it also breaks in, thank you for carefully explaining this. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#72
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High SPL Treble
Dick Pierce wrote:
In the near infrared, the air is pretty much transparent. And certainly, over a region extending 1/2" it's VERY transparent. So no power is going to be transferred to the air. And even if there was there is the issue of cooling it fast enough for it to contract as suggested by our questionee who has a remarkable resemblance to radium's style. If nothing else breaks the concept, this does. It is of course most interesting to read all the other ways it also breaks in, thank you for carefully explaining this. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
#73
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High SPL Treble
Dick Pierce wrote:
In the near infrared, the air is pretty much transparent. And certainly, over a region extending 1/2" it's VERY transparent. So no power is going to be transferred to the air. And even if there was there is the issue of cooling it fast enough for it to contract as suggested by our questionee who has a remarkable resemblance to radium's style. If nothing else breaks the concept, this does. It is of course most interesting to read all the other ways it also breaks in, thank you for carefully explaining this. Kind regards Peter Larsen -- ******************************************* * My site is at: http://www.muyiovatki.dk * ******************************************* |
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