Abstract: A system is provided for determining one or more properties of a pipe. The system includes an attachment pad and at least one sensor configured to be coupled to the outside of a pipe wall. The attachment pad is configured to overlie one or more of the at least one sensor such that the one or more sensor may be positioned between the pipe and the attachment pad, and also configured to prevent slippage of the one or more sensor on the pipe.

Abstract: A method and system for masking to a listener a conversation between a care provider and a patient such that the conversation becomes unintelligible to the listener, includes interposing an acoustically absorbent curtain that substantially spans between the floor and the ceiling and is positioned between the listener and the care provider and patient. A masking device is affixed to the curtain generally between the floor and the ceiling at a position along the barrier length and at a height approximately coinciding with a height of a mouth of the care provider. The masking device includes at least one speaker having an axis oriented generally perpendicular to the plane the curtain defines. An amplifier drives the speaker to produce a sound to propagate along the axis. A signal source provided at the amplifier input produces the sound selected to mask the conversation between the care provider and the patient.