Hi Im new,
(I wish this window had spell check).
I need to make a composit signal generator.
Let me explain. I have several machines at work that use varying voltages to control axis movement. Supply voltages and the like. I need to summ these up with voltage controled amplifiers and put them on a single line to the "audio line in" port of a PC. There I can look at the various singnals using a virtual spectum analizer. I need 7 or 8 dc inputs 0 to 40 volts, frequency adjustable, and filterd from the other frequencys. I know it can be done I'm just looking for a jump-start from some of you brainiy wizards.
If I can SEE what the signals are doing on a real-time basis I can more reliably tune drives, find bad components, etc.
David.
(I wish this window had spell check).
I need to make a composit signal generator.
Let me explain. I have several machines at work that use varying voltages to control axis movement. Supply voltages and the like. I need to summ these up with voltage controled amplifiers and put them on a single line to the "audio line in" port of a PC. There I can look at the various singnals using a virtual spectum analizer. I need 7 or 8 dc inputs 0 to 40 volts, frequency adjustable, and filterd from the other frequencys. I know it can be done I'm just looking for a jump-start from some of you brainiy wizards.
If I can SEE what the signals are doing on a real-time basis I can more reliably tune drives, find bad components, etc.
David.