Figure 1.Experiment set-up (1)Apparatus ofUltrasonic Interference Experiment ALTERNATIVE RESEARCHPROJECT 1.Observe the beat of ultrasonic sound wave and measure the beat frequency.2 2.Observe ultrasonic sound wave interference and measure the wavelength of it by using oscilloscope and optic bench. 3.Observe ultrasonic sound wave interference and measure the wavelength of it by using rotating platform. 4.Observe single,double and multiple silt diffraction by using rotating platform,computer measurement and data analysis system. APPARATUS Ultrasonic transducer,No.416000; Signal generator,No.416012; AL amplifier,No.416010; Rotating platform,No.311902; Motor driver,No.311902; DC power supply,No.52154; DC source box,No.524031; Oscilloscope,optic bench; Multimeter,wires EXPERIMENT TIPS 1.Read experimental introduction booklet carefully or refer to experimental reports with the goal of being familiar with basic requirements and experimental procedure. 2.Read the manual ofrelated experimental apparatus. 3.Read the manual of Gassy Leb computer measurement and data analysis system.Refer to online document for a more detailed usage of Gassy Leb.Figure 1. Experiment set-up (1)Apparatus of Ultrasonic Interference Experiment ALTERNATIVE RESEARCH PROJECT 1. Observe the beat of ultrasonic sound wave and measure the beat frequency.2 2. Observe ultrasonic sound wave interference and measure the wavelength of it by using oscilloscope and optic bench. 3. Observe ultrasonic sound wave interference and measure the wavelength of it by using rotating platform. 4. Observe single, double and multiple silt diffraction by using rotating platform, computer measurement and data analysis system. APPARATUS Ultrasonic transducer, No. 416000; Signal generator, No. 416012; AL amplifier, No. 416010; Rotating platform, No. 311902; Motor driver, No. 311902; DC power supply, No. 52154; DC source box, No. 524031; Oscilloscope, optic bench; Multimeter, wires EXPERIMENT TIPS 1. Read experimental introduction booklet carefully or refer to experimental reports with the goal of being familiar with basic requirements and experimental procedure. 2. Read the manual of related experimental apparatus. 3. Read the manual of Gassy Leb computer measurement and data analysis system. Refer to online document for a more detailed usage of Gassy Leb