1. Vibration Measurement
南臺科技大學
STUST
Vibration Measurement
Dept. of Mechanical Engineering
Yungpeng Wang

2. Vibration Measurement System
Pre-Amplifier
Memory1
Dynamic Frequency Analyzer
A/D
Weighting
Display
Transducer
Memory2
南臺科技大學
STUST

3. Transducer Accelerometer: acceleration Piezoelectric Accelerometer
Charge type
ICP type (Integrated Circuit -Piezoelectric)
Vibration Pickup: velocity
Proximeter: displacement
南臺科技大學
STUST

4. PZT Accelerometer

5. Velocity Pickup

6. Proximeter

7. Pre-Amplifier Charge Type Piezoelectric Accelerometer Pre-amplifier:
Charge to voltage conversion
Amplification
Filter
ICP Type Piezoelectric Accelerometer
Power supplies
Amplication
南臺科技大學
STUST

8. Dynamic Frequency Analyzer
Overall Analysis
Vibration Meter
Narrow Band
Constant Band Analysis (FFT Analysis)
High Resolution
Diagnose for Vibration Source, System Analysis
南臺科技大學
STUST

9. Dynamic Frequency Analyzer
Octave Band
Constant Percentage Band Analysis (CPB Analysis)
Vibration Energy Distribution
Monitoring, Human Factor Analysis
Overall Analysis
Vibration Meter
南臺科技大學
STUST

10. Dynamic Frequency Analyzer
Octave Band
Constant Percentage Band Analysis (CPB Analysis)
Vibration Energy Distribution
Monitoring, Human Factor Analysis
南臺科技大學
STUST

11. Dynamic Frequency Analyzer
南臺科技大學
STUST

12. Two Problems Aliasing Solution: Anti-aliasing filter (Low-pass filter)
南臺科技大學
STUST

13. Two Problems
Leakage
Solution: Time Weighting
南臺科技大學
STUST