Magnetic sensor apparatus for remotely monitoring a utility mete

Details Magnetic sensor apparatus for remotely monitoring a utility mete Magnetic sensor apparatus for remotely monitoring a utility mete

1985-01-31

1988-03-01

Caldwell, Sr., John W.

Communications: electrical

Continuously variable indicating

With particular transmitter

34087002, G08C 1906

Patent

active

047289503

ABSTRACT:
The present invention relates to a magnetic sensor apparatus (21) for use in a remote meter monitoring system (20) for remotely monitoring the dials (54a-e) of a utility meter (56) by use of Hall Effect devices (40-49). The Hall Effect devices (40-49) are concentrically positioned about the axis of rotation of a pointer member (64) having a permanent magnetic member (66) attached to a free end thereof. The Hall Effect devices (40-49) are axially displaced from the permanent magnetic member (66) and are in alignment with the circumferential path of travel of the permanent magnetic member (66). A microprocessor (68) electrically interconnected to the Hall Effect devices (40-49) selectively drives each of the Hall Effect devices (40-49). The microprocessor (68) further monitors the Hall Effect devices (40-49) and obtains output signals therefrom representative of the angular position of the pointer member (64).

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