Posted on 07/17/07 20:49:29
Number of posts: 0
Posted: Mon Feb 07, 2005 2:36 am Post subject: environmental noise
Any suggestions for reducing environmental noise from patient monitors, telephones and equipment in the operating room setting. We are using an isolated/shielded plug but are still having noise problems.
Posted on 07/17/07 20:51:52
Number of posts:
Posted: Fri Feb 11, 2005 5:38 pmï¿½ï¿½ï¿½ Post subject: environ noise
one way to reduce noise is to braid your electrodes. In other words, put a rubber band around all 3 electrodes at the base, then braid the electrodes until you have about 6-8 inches free for positioning the electrodes, then tie a second rubber band around this distal section. This should assist in cancelling your noise. Also it is imperative that you ensure good impedences at all 3 electrodes and also try to ensure that the impedences for all 3 (or more) electrodes are more or less the same, if they are not, then different levels of "common noise" will be substracted by the common mode rejection of the amplifiers.