PASSIVE electrodes

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Judy
Posts: 1
Joined: Sat Nov 21, 2015 3:23 am

PASSIVE electrodes

Post by Judy » Sat Nov 21, 2015 4:04 am

Hello,
We are trying to use Biosemi (Active Two System) to record EMG but the CM is out of range(blue light flashing) once our self-made PCB electrodes are connected to the subject. We assume that the reason would be our PCB electrodes are PASSIVE one which could not adapt to the Active Two System. Am I right? If so,do we have any solution for it? Do we need to modify our equipment?

Thanks a lot.
Judy
Digestive department of General Hospital of Tianjin Medical University,Tianjin,China

Coen
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Location: Amsterdam, Netherlands
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Re: PASSIVE electrodes

Post by Coen » Mon Nov 23, 2015 12:51 pm

The standard AD-box can only be used with BioSemi active electrodes. It is not possible operate the standard AD-box with passive electrodes.

For some applications with passive electrodes we can offer a custom solution, please discuss your particular application with you local BioSemi representative.

Best regards, Coen (BioSemi)

Luki
Posts: 6
Joined: Thu Feb 04, 2016 5:25 am

Re: PASSIVE electrodes

Post by Luki » Sat Aug 19, 2017 12:15 am

Hi there,

on a related note: we are trying to use custom made passive electrodes for EMG too and it seems to kind of work. However, it is not very reliable.
Would you say the Active Two System is definitely not suitable for passive electrodes? What are the custom solutions you were talking about in the previous post? And where to find local BioSemi representatives (i am in New Zealand)?

Thanks!

Coen
Site Admin
Posts: 873
Joined: Fri Mar 26, 2004 7:00 pm
Location: Amsterdam, Netherlands
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Re: PASSIVE electrodes

Post by Coen » Sun Aug 20, 2017 9:30 pm

The New Zealand systems are customized for passive electrodes, and have been very successfully used in the past. Consult your supervisors at the university.

Best regards, Coen (BioSemi)

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