|
Home > Archive > Electrical code Compliance > February 2008 > ECG electrode current leakage
You are viewing an archived Text-only version of the thread.
To view this thread in it's original format and/or if you want to reply to
this thread please [click here]
| Author |
ECG electrode current leakage
|
|
| bradwilliams98765@yahoo.com 2008-02-23, 1:25 pm |
| It turns out that for our ECG system we are over the limit for leakage
current. We have some current limiting resistors that go in between
the electrodes and amplifiers but that doesn't seem to be doing the
trick.
Does anyone out there have any experience with sensors on the human
body and how to limit the current?
Also what would be an easy way to set something up quickly to alllow
me to verify the leakage?
-Brad
| |
| hrhofmann@att.net 2008-02-24, 1:25 pm |
| On Feb 23, 12:44=A0pm, bradXXXXXXXX98...@yahoo.com wrote:
> It turns out that for our ECG system we are over the limit for leakage
> current. =A0We have some current limiting resistors that go in between
> the electrodes and amplifiers but that doesn't seem to be doing the
> trick.
>
> Does anyone out there have any experience with sensors on the human
> body and how to limit the current?
>
> Also what would be an easy way to set something up quickly to alllow
> me to verify the leakage?
>
> -Brad
I'm not very conversant with these matters, but are you sure it is
related to the probes and not AC leakaage due to capacitance in the
power supply area. What happens if the probes are completely removed,
is there still leakage??
| |
|
| On Feb 24, 7:59 am, "hrhofm...@att.net" <hrhofm...@att.net> wrote:
> I'm not very conversant with these matters, but are you sure it is
> related to the probes and not AC leakaage due to capacitance in the
> power supply area. What happens if the probes are completely removed,
> is there still leakage??
The leakage was measured from the electrodes/probes.
| |
| hrhofmann@att.net 2008-02-24, 8:25 pm |
| On Feb 24, 10:30=A0am, Brad <bradXXXXXXXX98...@yahoo.com> wrote:
> On Feb 24, 7:59 am, "hrhofm...@att.net" <hrhofm...@att.net> wrote:
>
[color=darkred]
>
> The leakage was measured from the electrodes/probes.
You are measuring the leakage between the probes that contact the
human body and the ground pin of the plug that goes into the 120V AC
wall outlet?? Is this AC or DC leakage??
| |
|
| On Feb 24, 5:30 pm, "hrhofm...@att.net" <hrhofm...@att.net> wrote:
> On Feb 24, 10:30 am, Brad <bradXXXXXXXX98...@yahoo.com> wrote:
>
>
>
>
> You are measuring the leakage between the probes that contact the
> human body and the ground pin of the plug that goes into the 120V AC
> wall outlet?? Is this AC or DC leakage??
A third party is testing our device so I am not 100% sure how the
testing was done. I am going to get more information today.
| |
| hrhofmann@att.net 2008-02-25, 5:25 pm |
| On Feb 25, 9:49=A0am, Brad <bradXXXXXXXX98...@yahoo.com> wrote:
> On Feb 24, 5:30 pm, "hrhofm...@att.net" <hrhofm...@att.net> wrote:
>
>
>
s[color=darkred]
ved,[color=darkred]
>
>
>
> A third party is testing our device so I am not 100% sure how the
> testing was done. =A0I am going to get more information today.
OK - Start a new thread, this one is getting too far down in the que.
|
|
|
|
|