Abstract: An integrating sphere-equipped optical measurement device and optical connector polarity and type identification and loss measurement are provided. The optical measurement device includes at least two photodetectors that are optically responsive over different ranges of wavelengths. The optical measurement device receives one or more optical signals emanate from optical fibers of an optical fiber cable. The optical measurement device determines an optical intensity or loss of the one or more optical signals based on a measurement made by a corresponding photodetector whose responsivity range includes a wavelength of the one or more optical signals. The optical measurement device determines one or more respective positions where the one or more optical signals impinged on a sensor. The optical measurement device determines a polarity of the optical fiber cable based on both the one or more positions and one or more or transmitting positions of the one or more optical signals, respectively.

Abstract: A method and apparatus for blending and display of radio frequency in-wall imagery are provided. In the method and apparatus, an RF sensor assembly receives an RF signal for capturing an RF image of one or more objects including an electricity-bearing object disposed in a space behind a surface, a voltage sensor detects a presence of the electricity-bearing object disposed in the space behind the surface and a processor determines the RF image based on the data representing the RF signal, identifies a position of the electricity-bearing object in the RF image based on the data indicating the presence of the electricity-bearing object and a relative position of the sensory field to the RF sensor assembly and generates, based on the RF image, a composite image in which the electricity-bearing object is marked.

Abstract: An optical time-domain reflectometer (OTDR) is provided. The OTDR emits a first optical signal that is an impulse optical signal having a non-zero power during a first period of time, where the first period of time is shorter than a period of time necessary for the first optical signal to traverse a length of an optical fiber under test. The OTDR emits a second optical signal that is an impulse optical signal having a non-zero power during a second period of time longer than a period of time necessary for the second optical signal to traverse the length of the optical fiber. The OTDR receives data representative of a third and fourth optical signals that are reflections of the first and second optical signals, respectively, by the optical fiber and generates an optical time-domain reflectometry signal based at least in part on the third and fourth optical signals.

Abstract: Systems and methods for measuring alternating current (AC) voltage of an insulated conductor (e.g., insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-galvanic contact (or “non-contact”) voltage measurement system includes a plurality of conductive sensors which capacitively couple with the insulated conductor. At least one processor receives signals indicative of the voltages at the conductive sensors due to the AC voltage in the insulated conductor, and determines the AC voltage in the insulated conductor based at least in part on the received signals.

Abstract: Generally described, embodiments are directed to an adapter for use with one or more connectors for coupling to an electronic device. The adapter receives the one or more separate connectors to form a connector assembly that is configured to be inserted into one or more sockets of an electronic device, such as an energy logger device. In at least one embodiment, the adapter includes one or more sealing rings that improve the sealing between the respective one or more connectors and one or more sockets to improve the integrity of the electrical coupling therebetween.

Abstract: Systems can include a tool configured to generate a first set of data representative of an object and a control station configured to receive the first set of data from the tool. A mobile device in communication with the control station can receive data from the control station including information regarding the object based on the data received from the tool. A user of the mobile device, such as a technician, can travel to the location of the tool, and, when the mobile device is within a predetermined proximity of the tool, the tool can communicate directly with the mobile device. The technician can use the mobile device to communicate with and control the tool in order to safely perform equipment analysis.

Abstract: Systems and methods provide a portable, verified voltage source that allows safe testing of separate non-contact voltage measurement systems. A proving unit of the present disclosure provides a known or specified alternating current (AC) voltage output across an insulated wire, which AC voltage may be fixed or may be user-selectable through a suitable user interface. The proving unit may include a visual indicator and/or an audible indicator that provides the user with an indication confirming that the proving unit is supplying an output voltage with the specifications of the proving unit, so the user will know that the proving unit is operating normally and is ready for testing a non-contact voltage measurement system. If the proving unit cannot provide the specified voltage output, the indicator(s) provides a signal to the user that the proving unit is currently non-functional. The proving unit may additionally verify contact voltage measurement systems (e.g., DMMs).

Abstract: A radio frequency (RF) imaging device comprising a display receives a three-dimensional (3D) image that is a superposition of two or more images having different image types including at least a 3D RF image of a space disposed behind a surface. A plurality of input control devices receive a user input for manipulating the display of the 3D image. Alternatively or additionally, the radio frequency (RF) imaging device may receive a three-dimensional (3D) image that is a weighted combination of a plurality of images including a 3D RF image of a space disposed behind a surface, an infrared (IR) image of the surface, and a visible light image of the surface. A user input may specify changes to the weighted combination. In another embodiment, the RF imaging device may include an output device that produces a physical output indicating a detected type of material of an object in the space.

Abstract: An electrical connector is provided. The electrical connector includes two or more electrically conductive prongs. Each electrically conductive prong may have a tapered distal end operable to axially contact a conductor of a cable when a force is applied to axially push the cable onto the two or more electrically conductive prongs. Each electrically conductive prong may have a proximal end operable to be electrically coupled to a respective connector conductor.

Abstract: Aspects of the invention generally relate to illumination gas imaging and detection. Camera systems can illuminate a target scene with light sources configured to emit absorbing and non-absorbing wavelengths with respect to a target gas. An image of the target scene illuminated with a non-absorbing wavelength can be compared to a non-illuminated image of the target scene in order to determine information about the background of the target scene. If sufficient light of the non-absorbing wavelength is scattered by the scene toward a detector, the target scene comprises an adequate background for performing a gas imaging process. A camera system can alert a user of portions of the target scene suitable or unsuitable for performing a gas imaging process. If necessary, the user can reposition the system until sufficient portions of the target scene are recognized as suitable for performing the gas imaging process.

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: In at least one embodiment, a handheld measurement system generates a measurement image derived from measurement data that is generated and/or received by the handheld measurement system. The handheld measurement system also generates a plurality of option images that each correspond to a particular selectable option. A display screen, which may be a touch screen, simultaneously displays the measurement image and the option images. The measurement device modifies the measurement image and/or the option images in response to received option image selections.

Abstract: A portable measurement device includes an elongated body, a stationary portion fixedly mounted to a distal end, and a movable jaw movably mounted to the distal end and movable between a closed position and an open position. In the closed position, the movable jaw and the stationary portion form a closed loop with an inner diameter of less than or equal to 10 mm. Alternatively, at least one of the movable jaw and the stationary portion has a cross-sectional diameter of less than or equal to 5 mm. In the open position, the movable jaw and the stationary portion define a gap allowing a wire under test to pass therethrough into the loop. A switch drives the movable jaw between the closed and open positions. A measurement circuit electrically coupled to the stationary portion and the movable jaw to receive and measure a sensing current generated by the closed loop.