Cubik Posted July 20, 2005 Report Share Posted July 20, 2005 Hi!I am having problems with displaying Lissajou patterns (for educational purpose) with a Tektronix 2246 and I need some help.I have one and only one function generator set to display sinusoidal signal. I put a T BNC connector on the output plug of the generator on plug to 50 ohms BNC to it and I have connected the 2 ends to the scope on CH1 and Ch2.I have inverted the CH3 to have the exact same signal and frequency inverted. I have changed the mode to XY and I am getting 2 diagonals lines (like this <).From there I cannot get any Lissajou figures. I have tried to change to different mode, different type of current and different everything but nothing works.I would really appreciate a little help from confirmed technician which I am obviously not...Thank you. Quote Link to comment Share on other sites More sharing options...
audioguru Posted July 20, 2005 Report Share Posted July 20, 2005 A 'scope shows a Lissajou pattern when it is set to XY mode and two different frequencies are a multiple of one from the other.You can have a 2nd frequency from a low voltage mains transformer. It makes 50Hz or 60Hz and your function generator makes 100Hz, 150Hz, 200Hz, or 120Hz, 180Hz, 240Hz etc. ;D Quote Link to comment Share on other sites More sharing options...
prateeksikka Posted July 23, 2005 Report Share Posted July 23, 2005 Frequency determing patterns?i some time wonder why do we call them lissajous? ;D ;D ;D Quote Link to comment Share on other sites More sharing options...
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