
64-16 Medical, Biomedical, and Health
64.8.1 Electrode Use
Various electrodes best suited for each biopotential measurement were described earlier. First, dier-
ent
el
ectrodes
by vi
rtue
of th
eir
de
sign
o
er
di
stinguishing
fe
atures:
mo
re
se
cure
(u
se
of st
rong
bu
t
le
ss-irritant
ad
hesives),
mo
re
co
nductive
(u
se
of no
ble
me
tals
su
ch
as sil
ver
an
d
go
ld),
an
d
le
ss
pr
one
to
ar
tifact
(u
se
of lo
w-junction-potential
ma
terials
su
ch
as Ag
–AgCl)
. El
ectrode
ge
l
ca
n
be of co
nsiderable
im
portance
in ma
intaining
a hi
gh-quality
in
terface
be
tween
th
e
el
ectrode
me
tal
an
d
th
e
sk
in
. Hi
gh-
conductivity gels, in general, help reduce the junction potentials along wit ...