User manual

DBK4 2-Channel Dynamic Signal Input Card
Overview …… 1
DBK4 Power Notice …… 2
Hardware Setup …… 3
Card Configuration …… 3
Card Connections …… 6
CE Compliance …… 6
DaqBook/100 Series & /200 Series and DaqBoard [ISA type] Configuration …… 7
DaqBook/2000 Series & DaqBoard/2000 Series …… 7
Software Setup …… 7
Hardware Description …… 7
Current Source (Transducer Biasing) …… 7
Signal Coupling ……8
Amplifier …… 8
Low-Pass Filter …… 8
Sample and Hold …… 8
Power Management …… 8
Software Controls …… 9
DBK4 – Specifications …… 9
Accelerometer Tutorial …… 11
What is a Piezoelectric Accelerometer? …… 11
Accelerometer Specification Parameters …… 11
Physical Setup …… 13
Electrical Grounding …… 14
Practical Limitations ……15
Cable-Connector Handling Precautions ……15
Cable Driving ……16
Reference Notes:
o Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to your
system, as needed.
o In regard to calculating system power requirements refer to the DBK4 Power Notice on page 2
of this section and to DBK Basics located near the front of this manual.
Overview
DBK4 is a 2-channel signal conditioner for dynamic signals. The unit provides a means of interfacing the
data acquisition device with piezoelectric transducers that include, but are not limited to: accelerometers,
microphones, and force/pressure transducers. The DBK4 interfaces with the LogBook’s or Daq Device P1
connector.
DBK Option Cards and Modules 958293 DBK4, pg. 1