Sensor device and method of manufacture and use

摘要

In some embodiments a method includes receiving, from a sensor device, a signal indicative of a voltage associated with a current passing over a line that is disposed through the sensor device. The method includes receiving, from the sensor device, a signal indicative of (1) a calibrated sensitivity of the sensor device, (2) a calibrated temperature of the sensor device, and (3) an ambient temperature that was received from an ambient temperature sensor. The method includes defining an actual sensitivity of the sensor device based on (1) the calibrated sensitivity of the sensor device, (2) the calibrated temperature of the sensor device, and (3) the ambient temperature. The method includes sending a signal indicative of a modified electric current value based on (1) the voltage and (2) the actual sensitivity of the sensor device.

主权项

1. An apparatus, comprising: a measurement module configured to be coupled to a sensor device having a first sensor portion and a second sensor portion, the first sensor portion comprising a first shell that includes a first printed circuit board and a second printed circuit board distinct from the first printed circuit board, the first printed circuit board and the second printed circuit board (1) operatively coupled together via a first flexible printed circuit, (2) fully disposed within the first shell, and (3) each include a coil printed thereon, the second sensor portion comprising a second shell that includes a third printed circuit board and a fourth printed circuit board that (1) are operatively coupled together via a second flexible printed circuit, (2) are fully disposed within the second shell, and (3) each include a coil printed thereon, the second shell of the second sensor portion configured to be coupled to the first shell of the first sensor portion to define a single aperture, the measurement module operatively coupled to (1) the first sensor portion, (2) the second sensor portion, (3) an ambient temperature sensor, and (4) a memory storing a calibrated sensitivity and a calibrated temperature; the measurement module configured to define a measured electric current value based on a current passing through the aperture of the sensor device, and the measurement module configured to output a modified current value based on (1) the measured current value, (2) an actual sensitivity of the sensor device based on the calibrated sensitivity, and (3) an ambient temperature received from the ambient temperature sensor, wherein the first shell is semi-toroidal, the second shell is semi-toroidal, and the second shell of the second sensor portion is configured to be coupled to the first shell of the first sensor portion to form a single toroid that defines the aperture.