Abstract: An apparatus includes a shaker screen onto which downhole materials and fluid from a borehole are to be placed, the downhole materials a product of a downhole operation and a shaker to vibrate the shaker screen to separate the downhole materials from the fluid. The apparatus includes a radar to emit an electromagnetic wave onto the downhole materials on at least one of the shaker screen and a transit and detect a reflection of the electromagnetic wave reflected off at least a portion of the downhole materials and a device to determine a velocity of the downhole materials advancing along at least one of the shaker screen toward a discharge end of the shaker screen and the transit.

Abstract: A solenoid valve is provided. The solenoid valve can include a valve body, a solenoid actuator, a valve insert, and first and second movable valve elements. The valve body can include a valve bore, a control port, a first port, and a second port, in which the control port is arranged in a nose of the valve body. The solenoid actuator is coupled to the valve body and configured to selectively move a pin between a first position and a second position to move first and second valve elements. Movement of the pin, by the solenoid actuator, between the first position and the second position selectively connects the control port to the first port or the second port.

Abstract: A method includes performing a downhole operation in a borehole; capturing, during the downhole operation, downhole particles and drilling mud at the surface from the borehole into a screen of at least one shaker; shaking the screen to emit vibrations to separate the downhole particles from the drilling mud; defining a vibration limit for a normal operating condition of the at least one shaker; setting a vibration fault threshold based on the vibration limit for the normal operating condition; monitoring, using at least one sensor, the vibrations over time; and determining there is a fault condition for the shaker, in response to the vibrations exceeding the vibration fault threshold.

Abstract: Hearing assistance apparatus, systems and methods that involve the use of distributed power without the use of a headpiece.

Abstract: A solenoid valve is provided. The solenoid valve can include a valve body, a solenoid actuator, a valve insert, and first and second movable valve elements. The valve body can include a valve bore, a control port, a first port, and a second port, in which the control port is arranged in a nose of the valve body. The solenoid actuator is coupled to the valve body and configured to selectively move a pin between a first position and a second position to move first and second valve elements. Movement of the pin, by the solenoid actuator, between the first position and the second position selectively connects the control port to the first port or the second port.

Abstract: Methods and systems are provided for autonomously operating a retractable lighting arrangement. One method involves obtaining a current speed of the vehicle when the lighting arrangement is in an extended state, and when the current speed is greater than a threshold when the lighting arrangement is in the extended state, verifying one or more illumination elements associated with the lighting arrangement are in a deactivated state and thereafter automatically signaling an actuation arrangement associated with the lighting arrangement to transition the lighting arrangement from the extended state to a retracted state.

Abstract: A line of coherent radiation is projected on a bed on which one or more particles is located, the one or more particles flowing produced as a result of a downhole operation in the borehole. An image of the bed is captured wherein one or more particles on the bed deflect the line of coherent radiation. One or more image edges is detected based on the captured image. A subset of the one or more image edges is identified as corresponding to edges of the one or more particles, based in part on changes in intensity of the captured image. Information about the one or more particles, including information about of size, shape and volume, can be determined from the one or more image edges corresponding to the edges of the one or more particles.

Abstract: A method for controlling an orientation of a searchlight on a vehicle is provided. The method comprises: obtaining a target range to a point of interest (POI) at a target; determining a searchlight position and attitude; calculating a three dimensional position at the POI using searchlight azimuth and tilt actuator angles, the target range, and the searchlight position and attitude, while a searchlight light head continues to point at the 3D target position despite changes in movement or orientation of the vehicle; calculating a desired searchlight orientation including azimuth angle and tilt angle to point the light head at the target through inverting a kinematic relationship between the vehicle and the searchlight; calculating compensatory actuator angles for a plurality of searchlight actuators to achieve the desired searchlight orientation based on error measurements calculated from a current orientation; and commanding the plurality of searchlight actuators to the compensatory actuator angles.

Abstract: A cochlear implant system may include a cochlear implant configured to be implanted within a user and a sound processor configured to detect an amount of sound exposure to the user; gradually adjust a most comfortable level (“M level”) from an initial value towards a target value in accordance with an adaption time course and in accordance with the detected amount of sound exposure to the user by increasing the M level when the detected amount of sound exposure is above a first threshold and decreasing the M level when the detected amount of sound exposure is below a second threshold; and direct the cochlear implant to apply stimulation having the gradually adjusted M level to the user.

Abstract: Methods and systems are provided for autonomously operating a retractable lighting arrangement. One method involves obtaining a current speed of the vehicle when the lighting arrangement is in an extended state, and when the current speed is greater than a threshold when the lighting arrangement is in the extended state, verifying one or more illumination elements associated with the lighting arrangement are in a deactivated state and thereafter automatically signaling an actuation arrangement associated with the lighting arrangement to transition the lighting arrangement from the extended state to a retracted state.

Abstract: Systems and methods for moving an illumination spot of a searchlight beam at a constant groundspeed. The method includes receiving state data comprising an attitude for the mobile platform. The method computes an elevation angle, theta, of the beam as a function of the attitude, an elevation actuator angle and a known mounting orientation for the searchlight. Responsive to receiving a searchlight control command from a user input device, the method determines a respective rate of change of theta, dtheta/dt, and rate of change of Psi, dPsi/dt, required to maintain the constant groundspeed of the illumination spot, as a function of the state data. The method updates theta responsive to the determined dtheta/dt and generates actuator control commands for an elevation actuator based thereon. The method updates Psi responsive to the determined dPsi/dt, and generates actuator control commands for an azimuth actuator based thereon.

Abstract: Systems and methods for moving an illumination spot of a searchlight beam at a constant groundspeed. The method includes receiving state data comprising an attitude for the mobile platform. The method computes an elevation angle, theta, of the beam as a function of the attitude, an elevation actuator angle and a known mounting orientation for the searchlight. Responsive to receiving a searchlight control command from a user input device, the method determines a respective rate of change of theta, dtheta/dt, and rate of change of Psi, dPsi/dt, required to maintain the constant groundspeed of the illumination spot, as a function of the state data. The method updates theta responsive to the determined dtheta/dt and generates actuator control commands for an elevation actuator based thereon. The method updates Psi responsive to the determined dPsi/dt, and generates actuator control commands for an azimuth actuator based thereon.

Abstract: A method includes performing a downhole operation in a borehole in a formation. Downhole particles and drilling mud are captured at a surface from the borehole into a screen of a shaker during the downhole operation. Input power that comprises at least one of voltage, current, and leakage current being supplied to the shaker is monitored during operation of the shaker, it is determined whether the input power exceeds a threshold as a result of change in a load on the shaker. In response to determining that the input power exceeds the threshold as the result of change in the load on the shaker, it is determined that there is a kick condition in the borehole, where the kick condition comprises a condition in which a pressure of the formation exceeds a pressure in the borehole.

Abstract: An apparatus includes a shaker screen onto which downhole materials and fluid from a borehole are to be placed, the downhole materials a product of a downhole operation and a shaker to vibrate the shaker screen to separate the downhole materials from the fluid. The apparatus includes a radar to emit an electromagnetic wave onto the downhole materials on at least one of the shaker screen and a transit and detect a reflection of the electromagnetic wave reflected off at least a portion of the downhole materials and a device to determine a velocity of the downhole materials advancing along at least one of the shaker screen toward a discharge end of the shaker screen and the transit.

Abstract: A system for automated detection and removal of visual obstructions such as debris, fumes, or mist from the view zone of an imaging device. An autodetection algorithm runs on incoming visual data from a data acquisition (DAQ) system to determine if a visual obstruction is present. A controller initiates a dry-cleaning dual cycle (DCDC) run including a wet clean cycle and a dry clean cycle. During the wet clean cycle, a base fluid mist is distributed onto the view zone. Subsequently during the dry clean cycle, compressed air is distributed onto the view zone.

Abstract: A method includes depositing, onto a shaker screen, downhole materials and fluids coming to a surface of the borehole as a result of a downhole operation. The downhole materials are separated from the fluids using the shaker screen. Using a radar, an electromagnetic wave is emitted toward a discharge end of the shaker screen or a transit downstream to the shaker. A reflection of the electromagnetic wave reflected off a portion of the downhole materials is detected. A velocity of the downhole materials advancing along the shaker screen toward the discharge end of the shaker screen or on a transit downstream to the shaker is determined. An approximate area occupied by the downhole materials on the shaker screen is determined. A volume of the downhole materials based on the velocity of the downhole materials and the approximate area occupied by the downhole materials on the shaker screen is determined.

Abstract: A searchlight assembly includes a mount structure adapted to be mounted to an external surface of a vehicle; a lens coupled to an extending from the mount structure and having an inner surface defining a cavity; a spherical motor disposed within the cavity and coupled to the mount structure to independently rotate about two perpendicular axes relative to the mount structure and the lens; and a light source disposed within the cavity and coupled to the spherical motor to be rotatable therewith about the two perpendicular axes.

Abstract: A searchlight assembly includes a mount structure adapted to be mounted to an external surface of a vehicle; a lens coupled to an extending from the mount structure and having an inner surface defining a cavity; a spherical motor disposed within the cavity and coupled to the mount structure to independently rotate about two perpendicular axes relative to the mount structure and the lens; and a light source disposed within the cavity and coupled to the spherical motor to be rotatable therewith about the two perpendicular axes.

Abstract: A cochlear implant system may include a cochlear implant configured to be implanted within a user and a sound processor configured to detect an amount of sound exposure to the user; gradually adjust a most comfortable level (“M level”) from an initial value towards a target value in accordance with an adaption time course and in accordance with the detected amount of sound exposure to the user by increasing the M level when the detected amount of sound exposure is above a first threshold and decreasing the M level when the detected amount of sound exposure is below a second threshold; and direct the cochlear implant to apply stimulation having the gradually adjusted M level to the user.

Abstract: Hearing assistance apparatus, systems and methods that involve the use of distributed power without the use of a headpiece.