Category:Phase - Revision history

ST: Image:PhaseIn.png

2007-09-20T07:01:06Z

← Older revision		Revision as of 07:01, 20 September 2007
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	[[Image:PhaseIn.png]]		[[Image:PhaseIn.png]]

	~~[[Image:PhaseOut90.png]]~~

	~~[[Image:PhaseOut180.png]]~~

	<!--		<!--

ST: Image:PhaseIn.png Image:PhaseOut90.png Image:PhaseOUt180.png

2007-09-20T07:00:28Z

Image:PhaseIn.png Image:PhaseOut90.png Image:PhaseOUt180.png

← Older revision		Revision as of 07:00, 20 September 2007
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	Running two inputs 180° out-of-phase puts the peaks and valleys of the sine wave so that they null each other out when summed (see the middle picture below). This has a tendency to cancel out both inputs, and is quite pronounced in the "far" field, but negligible in the "near" field. Normally phase cancellation is undesirable, but when you know what you want (and in this case, what you don't want) then you do it deliberately.		Running two inputs 180° out-of-phase puts the peaks and valleys of the sine wave so that they null each other out when summed (see the middle picture below). This has a tendency to cancel out both inputs, and is quite pronounced in the "far" field, but negligible in the "near" field. Normally phase cancellation is undesirable, but when you know what you want (and in this case, what you don't want) then you do it deliberately.

			[[Image:PhaseIn.png]]

			[[Image:PhaseOut90.png]]

			[[Image:PhaseOut180.png]]

			<!--
	<html><br />		<html><br />
	<EMBED src="http://www.sfu.ca/sca/Manuals/ZAAPf/splash/phase_diagram.spl" width=490 height=174		<EMBED src="http://www.sfu.ca/sca/Manuals/ZAAPf/splash/phase_diagram.spl" width=490 height=174
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	[http://www.sfu.ca/sca/Manuals/ZAAPf/p/phase.html Phase at SFU]]		[http://www.sfu.ca/sca/Manuals/ZAAPf/p/phase.html Phase at SFU]]
			-->
	Use this category for articles that reference this concept.		Use this category for articles that reference this concept.

	<nowiki>[[category:phase]]</nowiki>		<nowiki>[[category:phase]]</nowiki>

ST at 15:08, 26 October 2006

2006-10-26T15:08:50Z

← Older revision		Revision as of 15:08, 26 October 2006
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	Running two inputs 180° out-of-phase puts the peaks and valleys of the sine wave so that they null each other out when summed (see the middle picture below). This has a tendency to cancel out both inputs, and is quite pronounced in the "far" field, but negligible in the "near" field. Normally phase cancellation is undesirable, but when you know what you want (and in this case, what you don't want) then you do it deliberately.		Running two inputs 180° out-of-phase puts the peaks and valleys of the sine wave so that they null each other out when summed (see the middle picture below). This has a tendency to cancel out both inputs, and is quite pronounced in the "far" field, but negligible in the "near" field. Normally phase cancellation is undesirable, but when you know what you want (and in this case, what you don't want) then you do it deliberately.
	<html>		<html><br />
	<EMBED src="http://www.sfu.ca/sca/Manuals/ZAAPf/splash/phase_diagram.spl" width=490 height=174		<EMBED src="http://www.sfu.ca/sca/Manuals/ZAAPf/splash/phase_diagram.spl" width=490 height=174
	Loop="True" Play="True" BGColor="ffffff" Quality="Autohigh" Scale="Showall" SAlign="">		Loop="True" Play="True" BGColor="ffffff" Quality="Autohigh" Scale="Showall" SAlign="">

ST: first ed

2006-08-23T02:13:19Z

first ed

New page

Running two inputs 180° out-of-phase puts the peaks and valleys of the sine wave so that they null each other out when summed (see the middle picture below). This has a tendency to cancel out both inputs, and is quite pronounced in the "far" field, but negligible in the "near" field. Normally phase cancellation is undesirable, but when you know what you want (and in this case, what you don't want) then you do it deliberately.
<html>
<EMBED src="http://www.sfu.ca/sca/Manuals/ZAAPf/splash/phase_diagram.spl" width=490 height=174
Loop="True" Play="True" BGColor="ffffff" Quality="Autohigh" Scale="Showall" SAlign="">
</html>

[http://www.sfu.ca/sca/Manuals/ZAAPf/p/phase.html Phase at SFU]]

Use this category for articles that reference this concept.

<nowiki>[[category:phase]]</nowiki>