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AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorsAllan J. Zuckerwar, William E. Robbins, Glenn M. Robins
Estimating the term…
A method for providing a perfectly flat top with a sharp edge on a dynamic pressure sensor using a cup-shaped stretched membrane as a sensing element. First, metal is deposited on the membrane and surrounding areas. Next, the side wall of the pressure sensor with the deposited metal is machined to a predetermined size. Finally, deposited metal is removed from the top of the membrane in small steps, by machining or lapping while the pressure sensor is mounted in a jig or the wall of a test object, until the true top surface of the membrane appears. A thin indicator layer having a color contrasting with the color of the membrane may be applied to the top of the membrane before metal is deposited to facilitate the determination of when to stop metal removal from the top surface of the membrane.
A method for making a dynamic pressure sensor having a flat sensing surface with a sharp edge, comprising the steps of:
A dynamic pressure sensor, comprising:
A method for mounting a dynamic pressure sensor flush with a test surface, comprising the steps of:
Dependencies are inferred from the claim text.