Abstract: Various methods and systems for monitoring one or more characteristics of a fluid in a mechanical device are disclosed herein. In at least one embodiment, the system includes an optical sensor including an excitation light aperture and an emission light aperture. The excitation light aperture transmits an excitation light to the fluid and the emission light aperture receives an emission light from the fluid. The system may further include an inductive sensor including a printed circuit board including a first field coil trace, a second field coil trace, and a sense coil trace. The methods disclosed include transmitting the excitation light to the fluid; receiving the emission light from the fluid; and operating a processor to obtain one or more fluorescence spectra based on the received emission light; and determine a fluid condition indicator and/or a remaining useful life of the fluid based on the one or more fluorescence spectra.

Abstract: Various methods and systems for monitoring one or more characteristics of a fluid in a mechanical device are disclosed herein. In at least one embodiment, the system includes an optical sensor including an excitation light aperture and an emission light aperture. The excitation light aperture transmits an excitation light to the fluid and the emission light aperture receives an emission light from the fluid. The system may further include an inductive sensor including a printed circuit board including a first field coil trace, a second field coil trace, and a sense coil trace. The methods disclosed include transmitting the excitation light to the fluid; receiving the emission light from the fluid; and operating a processor to obtain one or more fluorescence spectra based on the received emission light; and determine a fluid condition indicator and/or a remaining useful life of the fluid based on the one or more fluorescence spectra.

Abstract: An assembly for monitoring a liquid potentially containing contaminant particles flowing through a conduit that may include a swirl inducer for inducing swirl flow within the conduit to cause contaminant particles to migrate toward the periphery of the conduit. A removable plug defines a passage for coupling into the path of the peripheral fluid flow within the conduit. A device associated with the removable plug senses sensing or captures in situ the contaminant particles such that the captured contaminant particles can be accessed by removing the plug.

Abstract: The present invention is an apparatus for obtaining an indication of torque, axial alignment and axial location for a shaft rotating about an axis of rotation. A first set of detectable elements are operably connected to the shaft and positioned parallel to the axis of rotation. A second set of detectable elements parallel to the axis of rotation are interlaced in a sensing plane with said first set of detectable elements. The second set of detectable elements have a variable relative position with respect to the first set of detectable elements. A third set of detectable elements are positioned laterally to the first set of detectable elements and the second set of detectable elements in an alignment plane parallel to the sensing plane. The third set of detectable elements are positioned at an offset angle to the axis of rotation.

Abstract: The present invention is an apparatus for obtaining an indication of torque, axial alignment and axial location for a shaft rotating about an axis of rotation. A first set of detectable elements are operably connected to the shaft and positioned parallel to the axis of rotation. A second set of detectable elements parallel to the axis of rotation are interlaced in a sensing plane with said first set of detectable elements. The second set of detectable elements have a variable relative position with respect to the first set of detectable elements. A third set of detectable elements are positioned laterally to the first set of detectable elements and the second set of detectable elements in an alignment plane parallel to the sensing plane. The third set of detectable elements are positioned at an offset angle to the axis of rotation.