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Instrumentation (AMME2700) 1 Instrumentation Dr. Xiaofeng Wu.

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Presentation on theme: "Instrumentation (AMME2700) 1 Instrumentation Dr. Xiaofeng Wu."— Presentation transcript:

1 Instrumentation (AMME2700) 1 Instrumentation Dr. Xiaofeng Wu

2 Instrumentation (AMME2700) Unit of Study Survey 2 http://sydney.edu.au/itl/surveys/complete/

3 Instrumentation (AMME2700) Link-Type Load Cell F

4 Instrumentation (AMME2700) Beam-Type Load Cell F

5 Instrumentation (AMME2700) Force Measurement

6 Instrumentation (AMME2700) Piezoelectric Sensors  A piezoelectric material produces an electric charge when it is subjected to a force or pressure.

7 Instrumentation (AMME2700) Charge Sensitivity Model 7 q is the charge generated by the pizeoelectric senor (pC) is the chare sensitivity of the transducer (pC/g, pC/lb, pC/N, pC/psi, pC/pa) a is the mechanical quantity being measured

8 Instrumentation (AMME2700) Voltage Follower Circuit for Piezoelectric Sensors 8

9 Instrumentation (AMME2700) Displacement, Velocity and Acceleration Measurement in Inertial Space

10 Instrumentation (AMME2700) 10 Relative Displacement, Velocity and Acceleration

11 Instrumentation (AMME2700) Dynamic Response of the Seismic Model

12 Instrumentation (AMME2700) Seismic Displacement Transducers If F(t)=0

13 Instrumentation (AMME2700) Seismic Displacement Transducers

14 Instrumentation (AMME2700) Seismic Velocity Transducers

15 Instrumentation (AMME2700) Seismic Acceleration Transducers: Linear Seismic Accelerometer

16 Instrumentation (AMME2700) Accelerometer Design

17 Instrumentation (AMME2700) Piezoelectric Accelerometer Characteristics


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