Abstract: Remote sensors and methods of remote sensing are disclosed. A remote sensor includes a first circuit and a second circuit. The first circuit includes a first coil, a magnetic field generator for driving a current through the first coil to generate a magnetic field, and circuitry for determining loading of the magnetic field. The second circuit includes a second coil located proximate the first coil and a voltage-to-current converter for converting a voltage at an input of the second circuit to current and applying the current to the second coil. The current in the second coil registers as a loading of the magnetic field generated by the first coil. The loss, in response to the loading of the magnetic field, is measurable by the first circuit.

Abstract: A resistance is measured without physical contact/connection to the resistance. A resistive element to be measured is provided, physically connected as part of a passive electrical circuit. Without physically contacting the resistive element, an electromagnetic field is used to produce an excitation in the passive electrical circuit. The resistance of the resistive element is determined based on an effect of the excitation on the electromagnetic field.

Abstract: A resistance is measured without physical contact/connection to the resistance. A resistive element to be measured is provided, physically connected as part of a passive electrical circuit. Without physically contacting the resistive element, an electromagnetic field is used to produce an excitation in the passive electrical circuit. The resistance of the resistive element is determined based on an effect of the excitation on the electromagnetic field.

Abstract: Remote sensors and methods of remote sensing are disclosed. A remote sensor includes a first circuit and a second circuit. The first circuit includes a first coil, a magnetic field generator for driving a current through the first coil to generate a magnetic field, and circuitry for determining loading of the magnetic field. The second circuit includes a second coil located proximate the first coil and a voltage-to-current converter for converting a voltage at an input of the second circuit to current and applying the current to the second coil. The current in the second coil registers as a loading of the magnetic field generated by the first coil. The loss, in response to the loading of the magnetic field, is measurable by the first circuit.