Filter Control - dacell AM-1000 User Manual

you can get the precise information. (in case 1 active gauge is used)
Vout : Output voltage of amplifier
B
V : Bridge proper voltage
A : Amplifier gain
K : Gauge factor
For the Transducer, please use the following formula by using the output value
you know.
EX) 2mV/V
Vout : Output voltage of amplifier when the maximum output of transducer
is inputted
B
V : Bridge proper voltage
A : Amplifier gain
K : Output sensitivity of transducer (mv/V)
For shunt compensation, error can be occurred by wiring, bridge resistance or
proper voltage while stress analysis is being done. So shunt compensation is
very important when you set the amplifier gain. Also when you use the analogue
transducer (force, torque and pressure etc), please fully understand the size of
transducer and the form of output so that you can select correct amplifier gain
accordingly.

4-11. Filter control

As standard, ST-AM1000 has 2 pole standard low-pass filter installed.
Controllable switch is located on the front side of amplifier and the signal noise is
10Hz, 100Hz, 1kHz, 10kHz. Wide-band can be controlled by band pass. This cut-
off frequency is normally originated in 30% (-3dB) of output. For control, please
turn the rotary selector switch located on the front side of the amplifier.
K
µε
= × × ×
Vout V A
B
4
= × × ×
Vout V A K
B
16
−
×
6
10
−
3
10