Journal of Physics Conference Series,
Год журнала:
2024,
Номер
2740(1), С. 012035 - 012035
Опубликована: Апрель 1, 2024
Abstract
Hydrophone
is
an
important
part
of
sonar
system
and
convert
acoustic
signal
into
electrical
signal.
However,
the
generated
by
hydrophone
relatively
weak
cannot
be
directly
used
for
underwater
detection
communication.
Therefore,
it
necessary
to
preprocess
In
this
paper,
a
switched
capacitor
charge-sensitive
amplifier
MEMS
piezoelectric
designed.
structure,
two
single-channel
charge
amplifiers
are
time-division
multiplexing.
The
noise
sampling
amplification
performed
separately
in
same
half
cycle
achieve
effect
alternating
output,
thereby
increasing
rate
solving
problem
discontinuous
output
circuit.
circuit
design,
virtual
switch
two-phase
non-overlapping
clock
adopted
reduce
error
caused
injection
feedthrough
CMOS
switch.
What’s
more,
correlated
double
technique
offset
low
frequency
gain
designed
study
26
dB,
bandwidth
0.8Hz∼17.6kHz,
equivalent
input
power
spectral
density
115.6
nV/Hz
at
0.1Hz,
sensitivity
2
mV
/
pC
.
fitting
line
between
amplitude
curve
similar
theory.
simulation
results
show
that
proposed
meets
design
requirements
readout
Angewandte Chemie,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 26, 2024
Abstract
Piezocatalysis
is
considered
to
be
a
favorable
catalytic
technology
by
utilizing
external
mechanical
stimulation
promote
the
specific
redox
reactions.
The
application
of
piezocatalysis
in
batteries
promising
but
faces
formidable
challenges.
Herein,
operation
principles
were
successfully
demonstrated
constructing
solid‐state
Li−Se
and
Li−S
battery
models
with
interfacial
stress
accumulation.
Lead
zirconate
titanate
an
ultra‐high
piezoelectric
coefficient
was
applied
as
catalyst.
uniformity
dipole
orientation
materials
essential
for
achieving
batteries.
accumulated
high‐stress
converts
piezopotential
catalyzing
most
reaction
processes
batteries,
while
rapid
change
prevents
internal
charge
reorganization,
ensuring
continuous
efficient
catalysis.
alters
polarisation
strength,
driving
excess
screening
participate
electrochemical
reaction.
Under
piezocatalysis,
exhibited
initial
discharge
capacity
670.9
mAh
g
−1
(99.4
%
theoretical
value)
at
0.1
C,
showed
1463
0.2
which
still
maintained
up
1084
elevated
rate
0.5
C.
This
strategy
provides
strong
basis
design
specification
enhancing
kinetics.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 26, 2024
Abstract
Piezocatalysis
is
considered
to
be
a
favorable
catalytic
technology
by
utilizing
external
mechanical
stimulation
promote
the
specific
redox
reactions.
The
application
of
piezocatalysis
in
batteries
promising
but
faces
formidable
challenges.
Herein,
operation
principles
were
successfully
demonstrated
constructing
solid‐state
Li−Se
and
Li−S
battery
models
with
interfacial
stress
accumulation.
Lead
zirconate
titanate
an
ultra‐high
piezoelectric
coefficient
was
applied
as
catalyst.
uniformity
dipole
orientation
materials
essential
for
achieving
batteries.
accumulated
high‐stress
converts
piezopotential
catalyzing
most
reaction
processes
batteries,
while
rapid
change
prevents
internal
charge
reorganization,
ensuring
continuous
efficient
catalysis.
alters
polarisation
strength,
driving
excess
screening
participate
electrochemical
reaction.
Under
piezocatalysis,
exhibited
initial
discharge
capacity
670.9
mAh
g
−1
(99.4
%
theoretical
value)
at
0.1
C,
showed
1463
0.2
which
still
maintained
up
1084
elevated
rate
0.5
C.
This
strategy
provides
strong
basis
design
specification
enhancing
kinetics.
