# Measurement of the gravitational constant with a torsion balance

@article{Karagioz1996MeasurementOT, title={Measurement of the gravitational constant with a torsion balance}, author={O. V. Karagioz and V. P. Izmailov}, journal={Measurement Techniques}, year={1996}, volume={39}, pages={979-987} }

We present results of ten years of measurements of the gravitational constant made using an evacuated torsion balance. We obtained the valueG=(6.6729±0.0005)·10−11 N·m2·kg−2. We have determined the major destabilizing factors accompanying the measurement process and have estimated the contribution from different sources of error.

## 52 Citations

### Reflections on a measurement of the gravitational constant using a beam balance and 13 tons of mercury

- PhysicsPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
- 2014

The measurement of the gravi- tational constant G performed by researchers at the University of Zürich, Switzerland, was published in 2006 and the strengths and weaknesses of this approach are discussed.

### Investigation of variable gravitational gradients and specific features of the microseismic background with a torsion balance

- Geology
- 2011

This paper is an attempt at a brief description of the problem of measuring the gravitation field characteristics, namely, the first and second derivatives of the gravitation potential. The logics of…

### Calculation of the gravitational constant at measurements by a dynamic method

- Physics
- 2010

We demonstrate the perspective of extending the functional abilities of the gravitational constant calculation methodologies for a simple shape of the interacting bodies. We consider the special case…

### Beam balance helps settle down measurement of the gravitational constant

- Physics
- 2002

In recent years, measurements of Newton’s G have been disconcertingly inconsistent. Perhaps the problem is the traditional torsion balance.

### Determination of the Gravitational Constant

- Education, Physics
- 2001

The Newtonian gravitational constant G was the first known fundamental constant of physics. Nevertheless, the measurement of its value still seem to be in a rather sad shape. Recently, the CODATA…

### The Newtonian gravitational constant: Modern status of measurement and the new CODATA value

- Education
- 2012

Measurements of G, the Newtonian constant of gravitation, in laboratory experiments have a more than two hundred years’ history. Although the accuracy of the best modern experimental measurements of…

### A search for laws in the results of gravitational constant measurements

- Physics
- 2009

A spectral analysis has been performed on time series of the results of gravitational constant G measurements in the period of 1985–2003. A manifestation of cosmic rhythmics in the measurement…

### Status of measurement of the Newtonian gravitational constant G

- Education
- 2000

A precise knowledge of the Newtonian gravitational constant G has an important place in physics and is of considerable metrological interest. Although G was the first physical constant to be…

### Status of the experiments on measurement of the Newtonian gravitational constant

- Physics
- 2008

Due to the weakness of gravity, the accuracy of the Newtonian gravitational constant G is essentially below the accuracy of other fundamental constants. The current value of G, recommended by CODATA…

## References

SHOWING 1-3 OF 3 REFERENCES

### Experimental examination of the gravitational inverse square law

- PhysicsNature
- 1976

IN a previous paper1 we pointed out that earlier data on the measurement of the gravitational constant suggest a systematic shift in the value with the separation of the masses. This laboratory has…

### Redetermination of the Newtonian Gravitational Constant G

- Materials Science
- 1981

The universal Newtonian gravitational constant is being redetermined at the National Bureau of Standards with use of the method of Boyes in which the period of a torsion pendulum is altered by the…

### A new determination of the constant of gravitation

- Materials Science
- 1942

A new determination of the constant of gravitation by means of the torsion balance has been made in the hope of improving the precision of the result pub lished in 1930. A number of suggested…