Measurement Computing Daq PC-Card - Manual (Page 8)

iv 10-12-00 DaqBook/DaqBoard/Daq PC-Card User’s Manual
DBK34 Vehicle UPS Module …… 7-105
DBK34A UPS Module …… 7-109
DBK40 BNC Analog Interface ……7-113
DBK41 10-Slot Expansion Module ……7-115
DBK42 16-Slot 5B Signal Conditioning Module
……7-119
DBK43A 8-Channel Strain-Gage Module
……7-125
DBK44 2-Channel 5B Signal-Conditioning
Card ……7-139
DBK45 4-Channel SSH and Low-Pass Filter
Card ……7-145
DBK50 and DBK51 Voltage Input Modules
……7-149
DBK52 Thermocouple Input Module ……7-153
DBK53 and DBK54 Low/High-Gain Analog
Multiplexing Modules ……7-157
DBK60 3-Slot Expansion Chassis with
Termination Panels ……7-161
DBK200 Series and P4 Card Options (DBK200
through DBK209) ……7-165
8 - Signal Management and
Troubleshooting Tips
Signal Modes ……8-1
References for Differential Modes ……8-2
Unipolar and Bipolar Measurement ……8-4
12-Bit vs 16-Bit Resolution ……8-4
Input Isolation ……8-4
System Noise …… 8-5
Averaging ……8-5
Analog Filtering ……8-5
Input and Source Impedance ……8-6
Troubleshooting Tips ……8-7
Electrostatic Discharge (ESD) ……8-7
Troubleshooting Checklist ……8-7
Parallel Port Troubleshooting Tips……8-8
Radio Frequency Interference …… 8-8
Customer Assistance …… 8-9
9 - Accelerometer Tutorial
What is a Piezoelectric Accelerometer? ......9-1
Accelerometer Specification Parameters .....9-2
Noise in Accelerometers ......9-2
Sensitivity ......9-2
Transverse Sensitivity ......9-2
Base-Strain Sensitivity ......9-2
Acoustic Sensitivity ......9-2
Frequency Response ......9-2
Dynamic Range ......9-2
Bias Level ......9-3
Thermal Shock - Temperature Transients ......9-3
Overload Recovery ......9-3
Power Supply Effects ......9-3
Connector ......9-3
Physical Setup ......9-3
Mounting Effects ......9-3
Threaded Stud Mount ......9-4
Adhesive Mounts ......9- 4
Removal of Adhesive Accelerometers ......9-4
Magnetic Mounting Adapters ......9-4
Electrical Grounding ......9-5
Case-Grounded Design ......9-5
Isolated-Base Design ......9-5
Accelerometer Practical Limitations ......9-5
Mass Loading ......9-5
Upper Frequency Response ......9-5
Cable-Connector Handling Precautions ......9-5
Connectors ......9-5
Cables ......9-5
Triboelectric Noise ......9-6
Cable Driving ......9-6
10 - Specifications
DaqBoard/2000 Series Boards ……10-2
DaqBook, DaqBoard [ISA-type],
Daq PC-Card…… 10-7
DBK Option Cards and Modules ……10-9
11 - CE-Compliance
Overview ……11-1
CE Standards and Directives ……11-1
Safety Conditions ……11-2
Emissions/Immunity Conditions ……11-2
CE Enhancements …11-2
DaqBoard/2000, CE Cable Kit …… 11-3
DBK41/CE ……11-5
Edge Guards for DBK5, DBK8, & DBK44 ……11-5
Special Cables and Connectors ……11-5
12 – Calibration
Glossary