![]() ![]() Piezo-ceramic chip oscillation frequency: 40.1 ± 0. 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 The frequency, wavelength and speed of the waves is not altered. If the wave passes through a gap in a barrier circular wavelets are produced at each edge and the rest of the enegy just goes straight through. Study the interference of reflected and original sound wave, i.e. When a wave is disturbed by the edge of a barrier circular wavefronts are produced. 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. The second class of quantum effects, which becomes richer in multi-dimensional spaces, is typically referred to as either diffraction or scattering - depending on the context. 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. Diffraction of a light wave is illustrated in Figure 1. Diffraction is defined as the spreading of a wave into regions where it would not be seen if it moved only in straight lines after passing through a narrow slit or past an edge. This spreading out is called diffraction. 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. When waves pass through a narrow gap, they spread out. 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. ![]()
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