An aerosol generating device and system determine whether an aerosol generating substance is separated from the aerosol generating device based on an amount of change in inductance while power is blocked from being supplied to a heater.

An aerosol generating device and system determine whether an aerosol generating substance is separated from the aerosol generating device based on an amount of change in inductance while power is blocked from being supplied to a heater.

A proximity sensor for the inductive detection of objects, including a housing with a front cap, a processing and receiving unit, comprising a printed circuit board, which is configured to connect to an external control and evaluation unit, and a coil carrier, on which at least one primary coil and at least one first secondary coil are arranged circumferentially wound and spaced apart in an axial direction of an axis extending axially through the housing, wherein the first secondary coil lies closer, in the axial direction, to the end face than the primary coil, wherein a second secondary coil is arranged on the coil carrier, wherein the primary coil is arranged between the first and second secondary coils, wherein a metallic shielding element is arranged in an axial area surrounding the second secondary coil and is not arranged in an axial area surrounding the first secondary coil.

A proximity sensor for the inductive detection of objects, including a housing with a front cap, a processing and receiving unit, comprising a printed circuit board, which is configured to connect to an external control and evaluation unit, and a coil carrier, on which at least one primary coil and at least one first secondary coil are arranged circumferentially wound and spaced apart in an axial direction of an axis extending axially through the housing, wherein the first secondary coil lies closer, in the axial direction, to the end face than the primary coil, wherein a second secondary coil is arranged on the coil carrier, wherein the primary coil is arranged between the first and second secondary coils, wherein a metallic shielding element is arranged in an axial area surrounding the second secondary coil and is not arranged in an axial area surrounding the first secondary coil.

A method and system for visualizing data to detect a collar. A method may comprise disposing an electromagnetic logging tool downhole; emitting an electromagnetic field from the transmitter; energizing a casing with the electromagnetic field to produce an eddy current; recording the eddy current from the casing with the receiver; creating a variable-density-log from the recorded eddy current; selecting a wrapping period for the variable-density-log; creating a wrapped-variable-density-log from the variable-density-log using the wrapping period; and determining at least one collar location and a pipe index with the wrapped-variable-density-log. A system for to detect a collar may comprise an electromagnetic logging tool. The electromagnetic logging tool may comprise a transmitter and a receiver, wherein the transmitter and the receiver may be a coil. The system may further comprise an information handling system.

A method and system for visualizing data to detect a collar. A method may comprise disposing an electromagnetic logging tool downhole; emitting an electromagnetic field from the transmitter; energizing a casing with the electromagnetic field to produce an eddy current; recording the eddy current from the casing with the receiver; creating a variable-density-log from the recorded eddy current; selecting a wrapping period for the variable-density-log; creating a wrapped-variable-density-log from the variable-density-log using the wrapping period; and determining at least one collar location and a pipe index with the wrapped-variable-density-log. A system for to detect a collar may comprise an electromagnetic logging tool. The electromagnetic logging tool may comprise a transmitter and a receiver, wherein the transmitter and the receiver may be a coil. The system may further comprise an information handling system.

A security system including a detection device, an imaging device and a controller. The detection device being a detection device through which people traverse. The detection device producing a signal representative of at least one of an object being carried by a person and a distribution of metal carried by the person. The imaging device produces an image of the person. The controller executing the steps of determining whether the signal from the detection device exceeds a predetermined value; instructing the imaging device to capture an image of the person if the determining step indicates that the signal exceeds the predetermined value thereby creating a captured image; transmitting the captured image to selected data devices assigned to trusted individuals; and receiving a response from at least one of the data devices, the response indicating an action to be taken regarding the person.

A security system including a detection device, an imaging device and a controller. The detection device being a detection device through which people traverse. The detection device producing a signal representative of at least one of an object being carried by a person and a distribution of metal carried by the person. The imaging device produces an image of the person. The controller executing the steps of determining whether the signal from the detection device exceeds a predetermined value; instructing the imaging device to capture an image of the person if the determining step indicates that the signal exceeds the predetermined value thereby creating a captured image; transmitting the captured image to selected data devices assigned to trusted individuals; and receiving a response from at least one of the data devices, the response indicating an action to be taken regarding the person.

Embodiments described herein provide foreign object detection based on coil current sensing. The transmitter power loss is computed directly based on the coil current, in conjunction with, or in place of the conventional computation based on transmitter input current. The enhanced precision of the computer power loss can be used to more accurately detect a foreign object near the transmitter coil during a wireless power transfer.

Embodiments described herein provide foreign object detection based on coil current sensing. The transmitter power loss is computed directly based on the coil current, in conjunction with, or in place of the conventional computation based on transmitter input current. The enhanced precision of the computer power loss can be used to more accurately detect a foreign object near the transmitter coil during a wireless power transfer.