Abstract: Aspects of the invention provide for detecting tampering with an electronic utility meter. In one embodiment, aspects of the invention include an electronic utility meter, comprising a metering circuit enclosed within a cover; a switch chain including at least one reed switch operatively coupled to the metering circuit, and positioned around an inner circumference of the cover; and a sensor enclosed within the cover, coupled to the switch chain, the sensor sensing the at least one three reed switch closing in response to a user interaction with the electronic utility meter.

Abstract: A method for calibrating a sensor includes providing a fixture that defines a first coordinate system, providing a chassis, and orienting a plurality of sensor elements to form a misaligned coordinate system, wherein the misaligned coordinate system axes are oriented at other than right angles with respect to each other. The method also includes coupling the sensor to be calibrated to the fixture and mathematically compensating the misaligned coordinate system to correspond with the first coordinate system.

Abstract: A method for calibrating a sensor includes providing a fixture that defines a first coordinate system, providing a chassis, and orienting a plurality of sensor elements to form a misaligned coordinate system, wherein the misaligned coordinate system axes are oriented at other than right angles with respect to each other. The method also includes coupling the sensor to be calibrated to the fixture and mathematically compensating the misaligned coordinate system to correspond with the first coordinate system.