SPI Ultrasound Physics and Instrumentation Content Outline I. Elementary Principles (8%-12%) A. Nature of Ultrasound 1. Definition of sound a. propagation of vibration (1) compression (2) rarefaction 2. Differentiation between audible sound and ultrasound B. Frequency, Wavelength, Propagation Speed 1. Definition of terms 2. Relationships C. Properties of Ultrasound Waves 1. Amplitude 2. Pressure 3. .. 2009. 3. 30. 이전 1 ··· 2751 2752 2753 2754 2755 2756 2757 2758 다음