SONOMETER APPARATUS: Wooden sounding box

SONOMETER: Wooden sounding box

•  An excellent Sonometer Apparatus to demonstrate how sound is produced and precisely changed from a stretched wire.
•  This 1100 x 125 x 120mm (L x W x H) hollow wooden resonance box has 2x graduated 'metre' scales across the box length.
•  Comprises of 3x wires:
– The first 2x wires with different diameters and materials are tensioned by wrest pins attached at one end and affixed to bridge at the other end
– The 3rd central wire is fixed at one end with opposite end suspended over a mounted pulley and able to hold masses .
•  Set includes 2x each of short and long bridges (to adjust length of the vibrating strings) and 2x 1.5M wires both of different materials. (*Masses NOT included).

(Wikipedia excerpt: ..."A sonometer is a diagnostic instrument used to measure the tension, frequency or density of vibrations. They are used in medical settings to test both hearing and bone density. A sonometer, or audiometer, is used to determine hearing sensitivity, while a clinical bone sonometer measures bone density to help determine such conditions as the risk of osteoporosis.

In audiology, the device is used to test for hearing loss and other disorders of the ear. The audiometer measures the ability to hear sounds at frequencies normally detectable by the human ear. Several test are usually conducted using the audiometer which will then be used to assess hearing ability. Results typically are recorded on a chart known as an audiogram.

A clinical bone sonometer is a device which tests for the risk of bone fractures associated with osteoporosis. This test, called an ultrasound bone densitometry screening, is not typically used for diagnostic purposes; it is generally used as a risk assessment tool. Testing is often recommended for those whose personal history indicates a possible high risk for osteoporosis...")

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