An apparatus for emulating a variety of string instruments with a variety of configurations in order to measure the resulting, actual tension of a string on that instrument. The tension may be measured in real-time.

An apparatus for emulating a variety of string instruments with a variety of configurations in order to measure the resulting, actual tension of a string on that instrument. The tension may be measured in real-time.

An indicator clip for use with a retention mechanism. The indicator clip includes a body with a channel that is configured to accept a strap from the retention mechanism, and further including at least one extension that is configured to deflect when a force is applied to the retention mechanism. The indicator clip is configured to measure the force applied to the retention mechanism.

An indicator clip for use with a retention mechanism. The indicator clip includes a body with a channel that is configured to accept a strap from the retention mechanism, and further including at least one extension that is configured to deflect when a force is applied to the retention mechanism. The indicator clip is configured to measure the force applied to the retention mechanism.

Devices and systems for track tension measurement and alignment of tracked vehicles are provided. A device for measuring tension on a continuous track includes a shaft having a hollow cross section, a pin disposed at least partially through an aperture of the top end of the shaft, a compression member disposed within the inner volume of the shaft such that the pin contacts the compression member, and a base having a hollow cross section and removably attached to an outer surface of the shaft. When the base is attached to the outer surface of the shaft at a predetermined height, and the pin is depressed into the inner volume of the shaft at a predetermined distance, the distance between the top end of the pin and an end of the base is known.

Devices and systems for track tension measurement and alignment of tracked vehicles are provided. A device for measuring tension on a continuous track includes a shaft having a hollow cross section, a pin disposed at least partially through an aperture of the top end of the shaft, a compression member disposed within the inner volume of the shaft such that the pin contacts the compression member, and a base having a hollow cross section and removably attached to an outer surface of the shaft. When the base is attached to the outer surface of the shaft at a predetermined height, and the pin is depressed into the inner volume of the shaft at a predetermined distance, the distance between the top end of the pin and an end of the base is known.

Chain tension monitoring device (40) is configured for monitoring a chain tension force (F.sub.C) of a drive chain (27) extending in a longitudinal direction forming closed loop between two sprockets (26, 28). The chain tension monitoring device (40) comprises a sensor device (41) configured for mechanically contacting the drive chain (27), detecting movement of the drive chain (27) transversely, in particular orthogonally, to the longitudinal direction of the drive chain (27), and providing a detection signal indicating the detected movement of the drive chain (27); and an evaluator (50) configured for receiving the detection signal provided by the sensor device (41) and determining a chain tension force (F.sub.C) of the drive chain (27) from said detection signal.

Chain tension monitoring device (40) is configured for monitoring a chain tension force (F.sub.C) of a drive chain (27) extending in a longitudinal direction forming closed loop between two sprockets (26, 28). The chain tension monitoring device (40) comprises a sensor device (41) configured for mechanically contacting the drive chain (27), detecting movement of the drive chain (27) transversely, in particular orthogonally, to the longitudinal direction of the drive chain (27), and providing a detection signal indicating the detected movement of the drive chain (27); and an evaluator (50) configured for receiving the detection signal provided by the sensor device (41) and determining a chain tension force (F.sub.C) of the drive chain (27) from said detection signal.

A method and apparatus for calculating line sag in a span of a conductor is provided. The method includes using a portable smart device having one or more accelerometers and running a line sag application on the processing device. The line sag application enables acceleration data of return waves generated on the conductor to be collected using the smart device and to be plotted as a function of time for display on the smart device. The method further includes placement of time markers on the plotted data displayed on the smart device to determine elapsed time and calculating line sag using the elapsed time.

A method and apparatus for calculating line sag in a span of a conductor is provided. The method includes using a portable smart device having one or more accelerometers and running a line sag application on the processing device. The line sag application enables acceleration data of return waves generated on the conductor to be collected using the smart device and to be plotted as a function of time for display on the smart device. The method further includes placement of time markers on the plotted data displayed on the smart device to determine elapsed time and calculating line sag using the elapsed time.