Hi Guys,
I'm designing an industrial system with a camera and a LED array and I'm having some trouble with the quality of the signal. I add a picture of the signal from the scope. The "A" is the Trig IN (entering the camera from an optocoupler) and "B" is the LED array that flashes when the Camera take the picture.
I have a microcontroller that send a signal to an optocoupler that triggers the camera. From the optocoupler to the camera it's a not shielded, not twisted cable (about 30 cm). Everything is on the same reference, which is grounded in a metal cage, which is grounded with the plant(factory) ground.
I've heard alot of things about impedance matching to "terminate" my transmission line... Adding LC filter to reduce Slew Rate that cause the high frequency signals (rising edge) to reflects in the wire.
I'm quite lost in all of this.
Any help would be appreciated !
Thanks,
-Yannick.
I'm designing an industrial system with a camera and a LED array and I'm having some trouble with the quality of the signal. I add a picture of the signal from the scope. The "A" is the Trig IN (entering the camera from an optocoupler) and "B" is the LED array that flashes when the Camera take the picture.
I have a microcontroller that send a signal to an optocoupler that triggers the camera. From the optocoupler to the camera it's a not shielded, not twisted cable (about 30 cm). Everything is on the same reference, which is grounded in a metal cage, which is grounded with the plant(factory) ground.
I've heard alot of things about impedance matching to "terminate" my transmission line... Adding LC filter to reduce Slew Rate that cause the high frequency signals (rising edge) to reflects in the wire.
I'm quite lost in all of this.
Any help would be appreciated !
Thanks,
-Yannick.
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