Case Studies in Construction Materials,
Год журнала:
2023,
Номер
19, С. e02509 - e02509
Опубликована: Сен. 26, 2023
Monitoring
the
stress
and
strain
in
critical
structural
details
of
steel
structures
is
great
significance
for
ensuring
safety.
This
study
proposes
a
sprayed
piezoresistive
flexible
composite
coating
sensor
that
easy
to
manufacture,
industrialize,
standardize.
A
simple
fabrication
process
designed.
And
experiment
proves
has
excellent
performance
high
linearity,
sensitivity,
stability,
clear
response.
The
comprises
three
layers:
an
isolation
layer,
sensing
protective
layer.
matrix
parameters
are
estimated
through
numerical
simulations.
response,
stability
studied
experimentally
using
six
sensors.
results
indicate
voltage
follows
step-change
law
similar
strain.
theoretical
values
σx
good
agreement
with
predicted
values,
it
preliminarily
shows
potential
practical
application.
experimental
data
from
multiple
sensors
initial
resistances
matched
simulated
obtained
well.
Advanced Materials Technologies,
Год журнала:
2024,
Номер
9(20)
Опубликована: Июль 2, 2024
Abstract
The
array
of
tactile
information
processing
capabilities
is
an
important
index
for
modern
intelligent
devices
advancing
toward
a
humanoid
form,
and
it
greatly
improves
the
recognition
different
objects
in
human‐computer
interactions.
Herein,
deep‐learning‐assisted
grasping
system
based
on
piezoresistive
sensing
glove,
hardware
conditioning,
acquisition
circuits,
multibranch
deep‐capsule
network
reported.
Owing
to
multiscale
3D
structure
carbon
nanotube
(CNTs)/carbon
fiber
(CFs)
embedded
polydimethylsiloxane
(PDMS),
glove
highly
sensitive
pressure
exerted
by
external
objects.
acquired
signals
are
reflected
hand‐like
background
map,
combination
multiple
subgraphs
used
build
dataset.
A
constructed
encode
spatial
while
realizing
object
with
accuracy
99.4%.
Therefore,
proposed
possesses
good
human‐robot
interaction
capabilities,
providing
new
approach
development
robots
field
perceptual
applications.
physica status solidi (a),
Год журнала:
2024,
Номер
221(23)
Опубликована: Март 19, 2024
Field‐effect
transistor
(FET)‐type
pressure
sensor
offers
excellent
amplification
and
signal
conversion
functionality
as
a
switching
device,
it
has
the
capability
to
integrate
tactile
sensors
by
constructing
active‐matrix
arrays
with
low
crosstalk.
However,
conventional
FET‐type
either
have
complex
device
layout
additional
components,
such
pressure‐sensitive
elastomer,
attached
source/drain
electrodes,
or
method
of
modulating
gate
dielectric
can
lead
breakdown
failure.
Additionally,
deformation
elastomer
limits
response
speed
causes
differences
in
early
late
characteristics.
In
this
article,
facile
structure
pressure‐sensing
thin
film
(TFT)
that
modulates
channel
conductivity
cellulose/single‐wall
carbon
nanotube
(SWCNT)
composite
is
reported,
ensuring
simple
without
damaging
device.
The
fabricated
cellulose/SWCNT‐based
TFT
exhibits
change
on/off
current
ratio
from
2.75
×
10
3
2.0
4
high
linearity
(
R
2
=
0.9935)
maintains
durable
performance
over
2000
loading‐unloading
cycles.
shows
fast
time
less
than
8
ms.
A
practical
concept
sensing
circuits
demonstrated
based
on
TFTs
for
integration
into
display
driving
circuits,
enabling
accurate
using
only
drive
display.
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(21), С. 24706 - 24713
Опубликована: Окт. 18, 2024
Developing
high-performance
pressure
sensors
with
a
wide
detection
range
while
retaining
high
sensitivity
remains
an
enormous
challenge.
Herein,
the
porous
conductive
elastomer
composite-based
composed
of
natural
rubber
(NR)
and
multiwall
carbon
nanotubes
(MWCNTs)
were
fabricated
by
facile
freeze-drying
approach.
The
homogeneous
dispersion
MWCNTs
facilitates
formation
continuous
pathways
within
NR
matrix.
When
NR/MWCNTs
composites
(CECs)
compressed,
embedded
in
micropore
walls
can
contact
each
other
strengthen
pathways.
Consequently,
as-obtained
exhibited
1.145
kPa–1
over
0–480
kPa,
short
response–relaxation
time,
excellent
reversibility
stability.
In
addition,
effectively
detect
capture
subtle
large
human
movements
such
as
wrist,
elbow,
knee
bending,
even
pulse.
Furthermore,
be
assembled
integrated
glove
to
achieve
remote
gesture
recognition
sports
training
monitoring.
designed
CECs-based
hold
great
promise
for
integration
into
flexible
wearable
electronics.
Case Studies in Construction Materials,
Год журнала:
2023,
Номер
19, С. e02509 - e02509
Опубликована: Сен. 26, 2023
Monitoring
the
stress
and
strain
in
critical
structural
details
of
steel
structures
is
great
significance
for
ensuring
safety.
This
study
proposes
a
sprayed
piezoresistive
flexible
composite
coating
sensor
that
easy
to
manufacture,
industrialize,
standardize.
A
simple
fabrication
process
designed.
And
experiment
proves
has
excellent
performance
high
linearity,
sensitivity,
stability,
clear
response.
The
comprises
three
layers:
an
isolation
layer,
sensing
protective
layer.
matrix
parameters
are
estimated
through
numerical
simulations.
response,
stability
studied
experimentally
using
six
sensors.
results
indicate
voltage
follows
step-change
law
similar
strain.
theoretical
values
σx
good
agreement
with
predicted
values,
it
preliminarily
shows
potential
practical
application.
experimental
data
from
multiple
sensors
initial
resistances
matched
simulated
obtained
well.
