課程介紹：

Modal testing

• Objectives：

  To measure the natural frequencies and vibration modes of a structural system and to understand the vibration concept.

• Equipment：

  The experimental system includes an aluminum rod suspended by a pair of soft springs, an accelerometer, an instrumented hammer with a force transducer installed, spectrum analyzer, power supply and amplifier, and a PC based data acquisition system.

--------------------------------------------------------------------------------------------------
Gyroscopic Motion of a Rigid Body

• Objectives：

  To study the gyroscopic effects on the motions of a rigid body.

• Equipment：

  1. large steel sphere with an attached rod supported by a semispherical seat.

  2. compressor to levitate the sphere and to reduce the friction.

  3. Stroboscope, stopwatch, ruler.

--------------------------------------------------------------------------------------------------
Calibration of Displacement Sensors

• Objectives：

  To study the principles of LVDT, Fotonic and Eddy Current sensors and perform the calibration, data acquisition and analysis.

• Equipment：

  LVDT

  Eddy current sensor

  Fotonic sensor

  Proximeter

  Dial gauge

  Platform

  Data acquisition system

  Power supplier

--------------------------------------------------------------------------------------------------
Vibrations of Coupled Oscillators

• Objectives：

  To study the free and forced motions of two spring-coupled masses.

• Equipment：

  A linear air track with requisite springs, gliders, air blower, and driving motor

  Power supply

  A stop watch

  An electro-magnet