Tuning Forks, Equally Tempered Scale

Description

• Eight tuning forks that resonate at natural frequencies! The equal tempered scale divides each octave range (frequency ratio of 2:1) into 12 half steps such that every two adjacent notes have equal frequency ratios
• The ratio between any two adjacent notes on this scale is the twelfth root of two or about 1.06:1
• An equal tempered scale consists of two whole steps (frequency ratio 1.12:1), a half-note (frequency ratio 1.06:1), three whole steps, and a half-step
• The eight tuning forks resonate at natural frequencies that coincide with the frequencies of the natural notes on the equal tempered scale
• Made of aluminum alloy
• These forks are recommended by the American Association of Physics Teachers and the Acoustical Society of America for teaching purposes
• All are milled from bar stock, measure 1 x 2.5cm, and are tuned to an accuracy 0.5% at 20°C
• Based on A=440cps
• Compliance Recommended by the American Association of Physics Teachers and the Acoustical Society of America for teaching purposes!