Whether a sound wave is reflected, refracted, or absorbed. Waves, such as ultrasound, can be used in medicine and other industries. Piezo-ceramic chip oscillation frequency: 40.1 ± 0. At a boundary, waves are reflected, refracted, or absorbed. The instruction manual contains experimental configurations, principles, step-by-step instructions, and examples of experiment results. Please click Experiment Theory and Contents to find more information about this apparatus.įrequency range: 38 ~ 42 kHz resolution: 1 Hz Observe and measure double-slit interference and single-slit diffraction of sound wave Study the interference of reflected and original sound wave, i.e. Measure sound speed in air using phase and resonance interference methodsģ. Using this apparatus, the following experiments can be conducted:Ģ. A reflective plate to conduct interference experiment between reflected wave and original wave Ultrasonic receiver in connection to a rotating device to measure rotational anglesģ. An ultrasonic sensor with strong anti-interference capability to ensure high performance operationĢ. This apparatus is designed with the following characteristics:ġ. Through the experiments, students can have a better understanding of the fundamentals of acoustic wave and related experimental methods. This apparatus is specially designed to observe standing waves and resonance phenomenon of interference, measure the speed and wavelength of sound in air, observe double-slit interference and diffraction of sound, and observe the interference of original wave and reflected wave. Acoustics is the science of sound and of its effects on people. When they strike the ear, these waves produce the sensation of sound. All waves exhibit diffraction, not just sound waves. This bending of a wave is called diffraction. For example, if a stereo is playing in a room with the door open, the sound produced by the stereo will bend around the walls surrounding the opening. The measurements of many physical parameters such as ultrasonic distance, positioning, liquid flow, elastic modulus of materials, and gas temperature transient changes, involve sound speed. When a drum is struck, the drumhead vibrates and the vibrations are transmitted through the air in the form of sound waves. An obstacle is no match for a sound wave the wave simply bends around it.
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