Advanced Materials Technologies,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 27, 2024
Abstract
Flexible
pressure
sensors
are
unprecedentedly
developed
on
monitoring
human
physical
activities
and
human–computer
interaction.
Simultaneously,
improving
the
sensitivity
range
of
flexible
is
a
great
challenge.
Despite
introduction
microstructures
dielectric
layer,
deformability
still
limited
due
to
size
constraints
microstructures,
iontronic
capacitive
sensor
(ICPS)
difficult
significantly
improve.
Here,
an
innovative
strategy
combining
nano‐ZnO
sodium
alginate
(SA)
ionogels
with
two‐stage
enhancement
(TSE)
structures,
which
can
enhance
toughness
ICPS
for
ultrasensitive
range,
proposed.
Compared
other
previously
reported
sensors,
in
this
work
exhibits
ultra‐high
(S
max
>17000
kPa
−1
,
S
min
>360
)
broad
sensing
more
than
900
maintains
stable
long‐term
working
durability
4000
cycles.
The
demonstrates
its
versatility
potential
practical
applications
activity
This
provides
general
achieve
broader
pressure‐response
higher
sensitivity,
offering
effective
way
low‐cost,
scalable
sensor.
ACS Nano,
Год журнала:
2024,
Номер
18(33), С. 22010 - 22020
Опубликована: Авг. 6, 2024
Hydrophones
play
a
crucial
role
in
underwater
target
detection
within
sonar
systems.
However,
existing
hydrophones
often
encounter
challenges
such
as
low
sensitivity
and
poor
signal-to-noise
ratio
(SNR)
the
of
low-frequency
acoustic
signals.
This
work
introduces
capacitive
hydrophone
(CH)
designed
for
highly
sensitive
sound
Comprising
latex
film/silver
electrode
structured
hydrogel
electrolyte
layer,
CH
is
enclosed
cylindrical
casing.
By
strategically
integrating
carbon
nanotube
(CNT)
topology
network
pyramid
microarray
hydrogel,
sensor
efficiently
forms
electric
double
layer
(EDL),
enhancing
precision.
The
showcases
exceptional
low-pressure
across
wide
frequency
spectrum
(20
to
800
Hz),
achieving
receiving
up
-159.7
dB
critical
band
125
surpassing
performance
commercial
(RHC-14)
by
substantial
margin
33.29
dB.
Furthermore,
maintains
superior
SNR,
enabling
waves
faint
0.3
Pa.
study
demonstrates
capabilities
detecting
maritime
vessels
sounds,
underscoring
potential
CNT-enhanced
EDL
sensing
mechanism
future
design.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Авг. 17, 2024
Flexible
skins
that
can
be
laminated
on
curved
surfaces
are
a
desired
form
for
wind
pressure
measurement.
Sensors
such
applications
need
to
detect
both
negative
and
positive
with
ultrahigh
resolution
over
wide
range
up
600
kPa,
whereas
existing
flexible
sensors
unsatisfactory
demands.
Here,
we
report
skin
containing
two
iontronic
sensing,
respectively,
show
the
potential
of
measurement
in
room
temperature
tunnels.
We
control
contact
state
interface
sensor
introduce
pre-pressure
enables
exhibiting
-20
Pa
(0.025%)
within
broad
regime
(from
-100
kPa
-10
Pa).
The
other
sensing
exhibits
pressure-resolution
100
addition
frequency
bandwidth
400
Hz.
types
attached
wing
surface
at
various
free
stream
velocities
angles
attack.
This
study
provides
promising
technology
using
aviation
applications.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(8), С. 11013 - 11025
Опубликована: Фев. 14, 2024
Industrial
robots
are
the
main
piece
of
equipment
intelligent
manufacturing,
and
array-type
tactile
sensors
considered
to
be
core
devices
for
their
active
sensing
understanding
production
environment.
A
great
challenge
existing
is
wiring
units
in
a
limited
area,
contradiction
between
small
number
high
resolution,
deviation
overall
output
pattern
due
difference
performance
each
unit
itself.
Inspired
by
human
somatosensory
processing
hierarchy,
we
combine
with
artificial
intelligence
algorithms
simplify
sensor
architecture
while
achieving
resolution
capabilities
far
greater
than
signal
channels.
The
prepared
8-electrode
carbon-based
conductive
network
achieves
high-precision
identification
32
regions
97%
classification
accuracy
assisted
quadratic
discriminant
analysis
algorithm.
Notably,
remains
unchanged
after
13,000
cycles
at
60
kPa,
indicating
its
excellent
durability
performance.
Moreover,
large-area
skin-like
continuous
simple
fabricate,
cost-effective,
can
easily
scaled
up/down
depending
on
application.
This
work
may
address
increasing
need
fabrication,
rapid
integration,
adaptable
geometry
use
industrial
robots.
