How to use F440 resonance tuning fork
1. Purpose
Resonance tuning fork is used for teaching instrument physics class to demonstrate the resonance and interference of sound. Resonant tuning forks can be used as sound sources in experiments such as the measurement of sound generation speed and sound propagation in solids and liquids.
2. Structure and specifications
The teaching instrument resonance tuning fork is composed of two tuning forks with a frequency of 440 Hz. The tuning fork is made of 45 carbon steel with a smooth surface and a chrome-plated tuning fork. The total length of the fork is about 163 mm. The cross section of the fork strand is 6.5×16 mm. The resonance tuning fork is attached with a resonance box, a pair of rubber hammers, and a frequency conversion hoop that changes the frequency.
3. How to use
In a silent room. Insert the two teaching instrument tuning forks into the resonance box sockets so that the openings of the two resonance boxes are about half a meter away from each other. Knock one of the tuning forks in the base after 2 seconds. Hold the tuning fork with your hand so that it does not sound but you can hear the other. The sound of a tuning fork that resonates. If you put a frequency conversion hoop on the fork strand of the tuning fork for experiment, the resonance will not occur due to the different frequencies of the two tuning forks.
Resonant tuning forks should be protected from being dropped and subject to high heat to prevent frequency changes. The tuning fork must be knocked with a soft hammer and coated with acid-free anti-rust oil on the surface after use. The resonant tuning fork and the resonance box should have a reliable connection. When inserting and removing the tuning fork, avoid shaking to prevent the jack from becoming a horn shape, which may cause looseness when the tuning fork is inserted and affect the experimental results.