A
C
C
E
L
E
Total Customer
Satisfaction Guarantee
R
A
T
IO
N
•
A
C
O
U
S
T
IC
S
•
A
C
T
U
A
T
IO
N
•
F
O
R
C
E
•
L
O
A
D
•
P
R
E
S
S
U
R
E
•
S
H
O
C
K
•
S
T
R
A
IN
•
T
O
R
Q
U
E
•
V
IB
R
A
T
IO
calculation of output scaling
The differential 422 series contain high-gain, low-noise amplifiers connected in a charge amplifier
configuration. The charge output of the transducer is transferred to the feedback capacitors of the
amplifiers to develop a voltage which may be calculated using the following equation.
V
out
= 422 Scaling (mV/pC) x Transducer Sensitivity (pC/Engineering Unit)
where:
Transducer sensitivity = positive sensitivity minus negative sensitivity
V
out
= Output of 422 in mV/Engineering Unit
the Engineering Unit may be g’s, Newtons, psi, etc., depending on the sensor
Example: A (3 pC/g) differential server is used with a 422M175 (6 mV/pC). Calculate the output in
mV/g.
Answer: 6 mV/pC x 3 pC/g = 18 mV/g
PAGE 4
N
Summary of Contents for 422M183
Page 15: ......
