Ametek, Inc.

Jules Joseph DiRienzo, Jr

Kevin G Hafer

John Emiljan Naghski

Travis Darrell Hopkins

A measurement system having a first and second seal to create a sealed interface with a fluid and further having a rupturable barrier configured to relieve pressure when the pressure imparted to the first seal is less than the pressure imparted to the second seal, is disclosed. More particularly, the pressure relief element, which may be a rupturable barrier, is configured and positioned so that the second seal pressure limit is less than the first seal pressure limit. The primary elements of the system include the system housing, a sensing element having a first seal, with the sensing element within the housing, a second seal in fluid communication with the first seal, and a barrier that is rupturable when the pressure on the first seal is less than the pressure on the second seal.

Measurement systems having seals with pressure relief

An ultrasonic ranging device for ultrasonic ranging in the near zone. The device may include a transducer for generating an ultrasonic signal and for detecting an echo signal. The device may also include a processor for calculating the distance to a target object based on a first time period defined by a first set of ultrasonic signals when the target object is located outside the near zone and a second time period defined by a second set of ultrasonic signals when the target object is located within the near zone. The processor may also adjust the amplitude of the generated ultrasonic signal until the first set of ultrasonic signals is detected at the transducer.

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Chalfont, PA, United States of America

Jules Joseph DiRienzo, Jr