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is correlated, are important to an understanding of the forces involved, ln this respect it is important to realize that the firs; and second semi-conductor probes were diffcrenually connected in terms of .eicctricai" output and are polarity-sensitive 10 magnetic fieid measurements. Together the two probes constitute a d;.ife:entiai magnetic probe for an FVV Bell Gaussmeter. As conventionally used, such probes provide a measure of the magnetic field intensity from both AC and I)C sources, via the Hall effect. The Hail effect is a well known phenomenon whereby a potential gradient is developed in a direction trans\.?rse to the direction of current flow within a conductor 7/hen the conductor is positioned in a magnetic field. It should be clearly understood, however, that no magnetic field phenomenon is associated with the present invention. IT us the lateral voltages which are measured in the present arrangement are noc Hall voltage*. This statement is substantiated by the explanation which follows, dearly establishing the absence cf any 1-xull voltage indicative of magnetic fields. In this respect, the two probes are differentially connected for magnetic field measurements to eliminate errors due to ambient magnetic field changes whereas they are ad-ditively connected fcr sensing changes in thermal vibration of crysiai lattices. Although poiaiiiy-sc^itive to the magnetic fie'd, the differential magnetic probe is not poiarity-ser^itive to changes in thermal vibration of crystal lattice?.

Tue fact that die probes are polarity-sensitive -with respect to magnetic field but not wi»b respect to :hs direction ot crystal lattice vibrations means that when the prebes are reversed with respect to polarity any discernible difference in the output readings might be attributed to a r.mgnctic field induced into the system by the rotating wheel. Inasmuch as the fieid conductive portions of the apparatus are comprised predominately of brass which is a paramagnetic material, no appreciable magnetic field should be detected. This in fact corresponds to the actual results in that no measurable difference in magnetic fiux was recorded when the polarity of the probes was changcd. It is ¡nus possible to realistically discount magnetic fields as influencing operating results.

As seen in FIG. 7, (he detector 15 has as^.ated therewith two pairs of contacts 32 and 33, the first of which represents current contacts connected in turn to a source of censlont current 34 of convention! design. The second sot of contact 33 are voltage contacts connected to detect any potcnti ll gradient transverse 10 the direction of current iiow within the detector. The meter 36 represents me«ns for detecting such potential differences and may be in the form of a very sensitive galvanometer.

A thermocouple 3d is positioned in close proximity to the detector 15 to monitor the temperature thereof. Temperature differences, as recorded ly the thermocouple 35, are used for purposes of providing correction figures to the test results. A similar thermocouple is used in conjunction with the second detector 15a, as well as with the upper mass member particularly in the area 01 the generator wheel. Thermocouples are used for temperature mc,iitcring since the energy change of their conducting electrons, by which they sense temperature changc, arc not measurably affected by the kinemassic field.

Proceeding now to an explanation of the operation of the subject invention, it will be appreciated that in accordance with the theory of operation of the present apparatus when the generator wheel is made to spin at rat^s upwards of 10 or 20 thousand revolutions per minute, effective polarization of spin nuclei within the wheel structure gradually occurs. This polarization gradually gives rise to domain-like structures which continue to grow so as to extend their field dipole moment across the interface separating the rim ¿1 from the pole pieces 23. Secondaiy dynamic interactions of gravitational coupling between respective dipoles increase the

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