Abstract: Elements of a single beam-forming array of ultrasonic transducer elements are selectively activated to direct two or more ultrasonic beams to a series of acoustic mirrors mounted to or fabricated at known locations at an inside surface of the pipe. The ultrasonic beams traverse measurement path segments at known angles through a fluid flowing through the pipe before being received back at the single transducer array. Fluid flow velocity along the fluid flow path is calculated as a function of a difference in time-of-flight (TOF) along first and second ultrasonic beam paths after subtracting TOF components contributed by known-length non-measurement path segments. The difference in TOF results from an additive downstream fluid flow velocity vector component along a first measurement path segment and a subtractive upstream fluid flow velocity vector component along a second measurement path segment.

Abstract: An end of travel arrangement for shutting down an assembly line conveyor when an ergo assist arm at a conveyor station moves beyond an end of travel limit point, the end of travel arrangement including a trolley rail mounted alongside one of a pair of runway rails for supporting an ergo assist arm carriage with the trolley movable along the trolley rail. One or more proximity switches are mounted aligned with a home position on the trolley and detect when the trolley is displaced from the home position by contact of a feature on the carriage with the trolley and generate signals immediately initiating shutting down of the assembly line conveyor.

Abstract: An end of travel arrangement for shutting down an assembly line conveyor when an ergo assist arm at a conveyor station moves beyond an end of travel limit point, the end of travel arrangement including a trolley rail mounted alongside one of a pair of runway rails for supporting an ergo assist arm carriage with the trolley movable along the trolley rail. One or more proximity switches are mounted aligned with a home position on the trolley and detect when the trolley is displaced from the home position by contact of a feature on the carriage with the trolley and generate signals immediately initiating shutting down of the assembly line conveyor.

Abstract: Elements of a single beam-forming array of ultrasonic transducer elements are selectively activated to direct two or more ultrasonic beams to a series of acoustic mirrors mounted to or fabricated at known locations at an inside surface of the pipe. The ultrasonic beams traverse measurement path segments at known angles through a fluid flowing through the pipe before being received back at the single transducer array. Fluid flow velocity along the fluid flow path is calculated as a function of a difference in time-of-flight (TOF) along first and second ultrasonic beam paths after subtracting TOF components contributed by known-length non-measurement path segments. The difference in TOF results from an additive downstream fluid flow velocity vector component along a first measurement path segment and a subtractive upstream fluid flow velocity vector component along a second measurement path segment.

Abstract: Elements of a single beam-forming array of ultrasonic transducer elements are selectively activated to direct two or more ultrasonic beams to a series of acoustic mirrors mounted to or fabricated at known locations at an inside surface of the pipe. The ultrasonic beams traverse measurement path segments at known angles through a fluid flowing through the pipe before being received back at the single transducer array. Fluid flow velocity along the fluid flow path is calculated as a function of a difference in time-of-flight (TOF) along first and second ultrasonic beam paths after subtracting TOF components contributed by known-length non-measurement path segments. The difference in TOF results from an additive downstream fluid flow velocity vector component along a first measurement path segment and a subtractive upstream fluid flow velocity vector component along a second measurement path segment.

Abstract: Apparatus and methods disclosed herein implement steady-state and fast transient electronic current limiting through power transistors, including power transistors used as pass elements associated with general purpose drivers. Embodiments herein prevent excessive steady-state current flow through one or more driver pass elements and/or through load elements in series with the pass element(s) via a current sensing and driver preamplifier feedback loop. A transient over-current protection circuit includes a fast transient switch and a transient over-current control circuit. The transient over-current control circuit rectifies one or more transient voltage spikes to create a momentary direct current (DC) voltage power supply (MVS) to power a fast transient driver circuit and to trip the fast transient switch. The fast transient switch discharges a transient pass element input voltage (e.g.

Abstract: Elements of a single beam-forming array of ultrasonic transducer elements are selectively activated to direct two or more ultrasonic beams to a series of acoustic mirrors mounted to or fabricated at known locations at an inside surface of the pipe. The ultrasonic beams traverse measurement path segments at known angles through a fluid flowing through the pipe before being received back at the single transducer array. Fluid flow velocity along the fluid flow path is calculated as a function of a difference in time-of-flight (TOF) along first and second ultrasonic beam paths after subtracting TOF components contributed by known-length non-measurement path segments. The difference in TOF results from an additive downstream fluid flow velocity vector component along a first measurement path segment and a subtractive upstream fluid flow velocity vector component along a second measurement path segment.