Abstract: A test probe includes an electrically insulating handle, an electrically conducting blade extending from the handle, an electrically insulating shroud including a first portion and a second portion that are at least partially disposed around the electrically conducting blade. A housing is attached to the handle such that the first portion of the shroud is disposed within the housing, and the second portion of the shroud extends from an aperture formed in the housing. A spring disposed between the handle and the shroud biases the shroud toward the aperture formed in the housing. The shroud protects the electrically conducting blade from unintentional contact with a conductor during testing. When the test probe is correctly positioned on a device being tested, the shroud retracts into the housing exposing the electrically conducting blade. When the test probe is moved away from the device, the shroud returns to its original position.

Abstract: A radio frequency (RF) imaging device comprises a position sensor, an optical sensor, a processor, and an output. The position sensor determines a position of the RF imaging device relative to a surface. The optical sensor captures optical image data representing an optical image of an area of the surface. The optical image data is associated with position data representing a position relative to the surface derived from the determined position of the RF imaging device. The derived position data corresponds to the area of the surface imaged by the optical sensor. The processor produces a composite image in which one or more portions of the optical image data are simultaneously viewable with RF image data representing an RF image of a space behind the surface at the same position as the optical image data. The output displays the composite image. The output may be a projector.

Abstract: A radio frequency (RF) imaging device comprises an optical position sensor, an RF sensor assembly, a processor, and a memory. The optical position sensor captures an optical image of a field of view and outputs data representing the optical image. The RF sensor assembly is disposed at a first position and receives an RF signal for capturing an RF image of a portion of a space disposed behind a surface at the first position and outputs data representing the RF signal. The processor receives the data representing the optical image and the RF signal, and determines that an optical signature of a reference marker is present in the optical image. If the optical signature is present in the optical image, the processor defines the first position of the RF assembly as a reference position. The memory stores the data representing the RF signal in association with the reference position.

Abstract: A radio frequency (RF) imaging device comprises a position sensor, an RF sensor assembly, an optical sensor, a processor, and a memory. The position sensor determines a position of the RF imaging device relative to a surface. The RF sensor assembly captures RF image data representing an RF image of a portion of a space behind the surface at the determined position. The optical sensor captures optical image data representing an optical image of the surface at the determined position. The processor produces a composite image in which at least one or more portions of the RF image and one or more portions of the optical image that correspond to the same position relative to the surface are simultaneously viewable. The RF image data and the optical image data are stored in the memory in association with position data derived from the determined position of the RF imaging device.

Abstract: A laser level device with a marking feature indicates a relative position of the emitting light beam/ray with respect to a geometry of the housing of the laser level device. One or more of the outer surfaces of the laser level device includes a reference plane that provides a reference to measure a distance to the laser light beam. A distance of the light beam to the reference plane may be pre-marked on another outer surface of the laser level device, which is convenient for a user to check or mark the distance in a use scenario.

Abstract: A test probe includes an electrically insulating handle, an electrically conducting blade extending from the handle, an electrically insulating shroud including a first portion and a second portion that are at least partially disposed around the electrically conducting blade. A housing is attached to the handle such that the first portion of the shroud is disposed within the housing, and the second portion of the shroud extends from an aperture formed in the housing. A spring disposed between the handle and the shroud biases the shroud toward the aperture formed in the housing. The shroud protects the electrically conducting blade from unintentional contact with a conductor during testing. When the test probe is correctly positioned on a device being tested, the shroud retracts into the housing exposing the electrically conducting blade. When the test probe is moved away from the device, the shroud returns to its original position.

Abstract: A radio frequency (RF) imaging device comprises an RF sensor assembly, a position sensor, a processor, and a memory. The RF sensor assembly receives an RF signal for capturing an RF image of a portion of a space behind a surface. The position sensor receives a plurality of signals respectively emitted by a plurality of position markers at known positions relative to the surface. The processor determines a plurality of angles at which the plurality of signals respectively arrive at the position sensor and determines, based on the plurality of angles and the known positions of the plurality of position markers, a position of the RF imaging device relative to the surface. The memory stores the RF image in association with the determined position of the RF imaging device. A time-of-flight or triangulation of signal data may be used for position determination.

Abstract: A radio frequency (RF) imaging device comprises an RF sensor assembly, a position sensor, a processor, and a memory. The RF sensor assembly receives an RF signal for capturing an RF image of a portion of a space behind a surface. The position sensor receives a plurality of signals respectively emitted by a plurality of position markers at known positions relative to the surface. The processor determines a plurality of angles at which the plurality of signals respectively arrive at the position sensor and determines, based on the plurality of angles and the known positions of the plurality of position markers, a position of the RF imaging device relative to the surface. The memory stores the RF image in association with the determined position of the RF imaging device. A time-of-flight or triangulation of signal data may be used for position determination.

Abstract: A radio frequency (RF) imaging device comprises a position sensor, an RF sensor assembly, an optical sensor, a processor, and a memory. The position sensor determines a position of the RF imaging device relative to a surface. The RF sensor assembly captures RF image data representing an RF image of a portion of a space behind the surface at the determined position. The optical sensor captures optical image data representing an optical image of the surface at the determined position. The processor produces a composite image in which at least one or more portions of the RF image and one or more portions of the optical image that correspond to the same position relative to the surface are simultaneously viewable. The RF image data and the optical image data are stored in the memory in association with position data derived from the determined position of the RF imaging device.

Abstract: A radio frequency (RF) imaging device comprises a position sensor, an optical sensor, a processor, and an output. The position sensor determines a position of the RF imaging device relative to a surface. The optical sensor captures optical image data representing an optical image of an area of the surface. The optical image data is associated with position data representing a position relative to the surface derived from the determined position of the RF imaging device. The derived position data corresponds to the area of the surface imaged by the optical sensor. The processor produces a composite image in which one or more portions of the optical image data are simultaneously viewable with RF image data representing an RF image of a space behind the surface at the same position as the optical image data. The output displays the composite image. The output may be a projector.

Abstract: A radio frequency (RF) imaging device comprises an optical position sensor, an RF sensor assembly, a processor, and a memory. The optical position sensor captures an optical image of a field of view and outputs data representing the optical image. The RF sensor assembly is disposed at a first position and receives an RF signal for capturing an RF image of a portion of a space disposed behind a surface at the first position and outputs data representing the RF signal. The processor receives the data representing the optical image and the RF signal, and determines that an optical signature of a reference marker is present in the optical image. If the optical signature is present in the optical image, the processor defines the first position of the RF assembly as a reference position. The memory stores the data representing the RF signal in association with the reference position.