Actuator Calibration Stand Type AL0010 - Page 9
G.R.A.S. Sound & Vibration
Fig. 6
Block diagram of a complete set-up for making tests
Response signal from test micro- phone to measuring ampli
er
From signal generator to
AC Input
Actuator Supply Type 14AA
To
AL0010 from
AC Output +
800
V
DC (via
thin lead of AL0010)
AL0010 set up for testing a 1⁄2-inch micro- phone (see Fig.
3)
Power Module Type 12AK
Computer with hardware and software for simulating:
a signal generator capable of generating logarithmi- cally swept tones
a measuring ampli
er
From preampli
er to Input
