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Determination of the Gravitational Constant Manufacturer,Supplier and Exporter in India

Product Code : EL-TWL-11799

Determination of the Gravitational Constant

Description:-

Determination of the Gravitational Constant Laboratory Instruments Manufacturer demonstrates the force of gravity between two masses and allows the gravitational constant to be determined.

When the two large spheres are rotated to a new position, the torsion balance will vibrate about a new rest position.

The rotary motion is measured using a capacitive differential sensor, which largely suppresses noise and vibration components in the signal.

The apparatus is moved from its rest position by the attraction of the two spheres to two larger lead spheres.

The gravitational constant can be determined within the space of a single lesson with an accuracy of better than 10%.

For subsequent evaluation, the data can be exported to a spreadsheet.

The core of the apparatus is a torsion pendulum made of a light bar with two small lead spheres, which is suspended horizontally from a thin wire.

Alternatively, the motion can be demonstrated with the aid of a light pointer.

The output is then recorded using a computer.

Angular resolution	25 microradians
Torsion wire	Tungsten, 25 µm
Period of oscillation	2–4 mins
Sampling rate	0.5, 1, 2, 5, 10 samples/s
Mass of large lead spheres	1 kg
Mass of small lead spheres	15 g
Gravitational attraction	< 10–9 N
Weight	5 kg
Dimensions	190 x 180 x 200 mm³