Speed of sound apparatus
Measuring kit for determining the speed of sound in air from the difference in a signal's arrival time at two sensors.
Set for quantitative work on acoustics: measuring unit “Speed of Sound” and sound sensor-microphone on a stand. The speed of sound is determined by the method V = S/t from the difference in the time of arrival of the signal to two sensors with a known sensor spacing of 1 to 3 m. Designed for 3 activities, including comparing the result with the theoretical value, calculating the relative error and checking the speed constancy at different distances between the sensors. Suitable for physics lessons on the topic “Sound Waves”.
- 1.Measuring unit “Speed of sound” – 1 pc.
- 2.Sound sensor (microphone) on the stand - 2 pcs.
- Measuring the speed of sound in air using V = S/t from the difference in signal arrival times at two sensors a known distance apart
- Comparison of the measured value with the theoretical V₀ = 331.45 + 0.6 T (T - air temperature) and calculation of the relative measurement error
- Checking the consistency of sound speed: repeated measurements at different distances between sensors (sensor separation 1–3 m)
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