Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-04-25
1977-07-19
Corcoran, Robert J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
323 94H, G01R 3306
Patent
active
040371506
ABSTRACT:
A method of eliminating the effect of non-equipotentiality voltage on the Hall voltage based on the non-reciprocal behavior of a Hall generator whereby a Hall generator or cascade-connected Hall generators are energized with current alternately through one of two pairs of opposite electrodes, while the output signal is obtained from across the other pair of electrodes or a Hall generator or cascade-connected Hall generators are energized through each pair of opposite electrodes with currents equal in magnitude but differing in frequency, while the output signal is obtained from the same pair of electrodes, and then the true value of the voltage of the Hall generator or of the cascade-connected Hall generators is assessed from the arithmetic mean of the magnitudes of the converted signals. An apparatus embodying the above method wherein in one case the pairs of opposite electrodes of a Hall generator are connected through a switch with a supply source and with a Hall voltage indicator and in the other case the pairs of opposite electrodes of a Hall generator are connected to the respective supply sources operating at frequencies of which one is an even multiple of the other, the same pairs of opposite electrodes being connected through phase-sensitive detectors to the input of an adder connected to the Hall voltage indicator.
An apparatus embodying the above method for cascade-connected Hall generators comprises a supply voltage former of the second Hall generator, said former being connected to the output of said switch of electrodes of the first Hall generator and to a supply source, and an additional switch with which said pairs of opposite electrodes of the second Hall generator are connected in turn now to the supply voltage former and now to the Hall voltage indicator which is connected to the outputs of said additional switch.
REFERENCES:
patent: 3370241 (1968-02-01), Saraga
patent: 3416010 (1968-12-01), Kuhnlein et al.
patent: 3555310 (1971-01-01), Haeusler
patent: 3886446 (1975-05-01), Laranov et al.
Solid State Electronics; Pergamon Press; 1969; vol. 12, pp. 201-208; printed in G. Brit.
Belousov Vladimir Petrovich
Braiko Voldmir Vasilievich
Chigirin Jury Trofimovich
Grinberg Isaak Pavlovich
Kovalchuk Dmitry Vasilievich
LandOfFree
Method of and apparatus for eliminating the effect of non-equipo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and apparatus for eliminating the effect of non-equipo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for eliminating the effect of non-equipo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2295525