Abstract: An ultrasonic sensor assembly is provided having sensor body having opposing open ends for enabling fluid flow therethrough. The body defines an interior measurement section therein. The body defines a plurality of spiral flow paths disposed about a longitudinal axis of the measurement section. The sensor assembly includes a pair of ultrasonic transceivers mounted to the tubular body in spaced longitudinal relationship across the measurement section. An electronics housing mounted to the body in a separable manner, when mounted, the electronics housing is in operable communication with the pair of ultrasonic transceivers to measure fluid parameters within the measurement section.

Abstract: A fluid-flow sensor assembly is provided, comprising a body defining a measuring region for fluid flowing therethrough. A rigid structure is defined about the body to restrict size variation of the body during use. As a result, the rigid structure keeps the measuring section from altering in size, thus ensuring accurate measurement. In an exemplary embodiment, the body defines a ridge assembly that circumscribes the outer wall of the body, and a spiral wrap formed of rigid material is wrapped around the body.

Abstract: A fluid-flow sensor assembly is provided, comprising a body defining a measuring region for fluid flowing therethrough. A rigid structure is defined about the body to restrict size variation of the body during use. As a result, the rigid structure keeps the measuring section from altering in size, thus ensuring accurate measurement. In an exemplary embodiment, the body defines a ridge assembly that circumscribes the outer wall of the body, and a spiral wrap formed of rigid material is wrapped around the body.

Abstract: An ultrasonic sensor assembly is provided having sensor body having opposing open ends for enabling fluid flow therethrough. The body defines an interior measurement section therein. The body defines a plurality of spiral flow paths disposed about a longitudinal axis of the measurement section. The sensor assembly includes a pair of ultrasonic transceivers mounted to the tubular body in spaced longitudinal relationship across the measurement section. An electronics housing mounted to the body in a separable manner, when mounted, the electronics housing is in operable communication with the pair of ultrasonic transceivers to measure fluid parameters within the measurement section.

Abstract: A water display with multiple characteristics, providing a short burst of water or a steady stream of water of constant or variable height. The water display includes an interior cavity having a nozzle at the top for forming the desired stream size, and a flapper valve on the bottom through which the chamber may refill with water. A high pressure air line controllably provides high pressure air to the lower part of the chamber to force most of the water in the chamber out through the nozzle to provide a short blast of water to a height controlled by the air pressure. A second flapper valve, coupled to the chamber, allows a steady stream of water to enter the chamber and exit the nozzle from a water supply, typically a variable pressure water supply, so that a steady stream of water of variable and controllable height may be obtained. Use of the water display in plurality in coordination of the multiple modes of operation thereof provides a new visual effect. Various embodiments are described.