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Trycksensor innefattande en tryckkänslig flat kapsel
1989 (Swedish)Patent (Other (popular science, discussion, etc.))
Abstract [en]

A pressure sensor comprises a pressure-sensitive, flat capsule (1) adapted to be actuated by a pressure which is to be measured, and to be excited to oscillate in mechanical resonance with a resonance frequency dependent on said pressure, as well as to undergo a deformation caused by said pressure, for producing a change in rigidity of the entire capsule (1) and, consequently, an alteration of the resonance frequency thereof. The pressure sensor is characterised in that the capsule (1) is fixed (at 3) with respect to, and adapted to execute said resonance oscillation about, two intersecting unforced nodal lines (10, 11) of the capsule. When the capsule executes its resonance oscillation, it oscillates substantially perpendicular to a geometrical plane common to both nodal lines (10, 11).

Place, publisher, year, edition, pages
National Category
Other Engineering and Technologies
URN: urn:nbn:se:kth:diva-80917OAI: diva2:496912
SE 462874B (1991-01-17)

QC 20150123

(Patent ej i kraft)

Available from: 2012-02-10 Created: 2012-02-10 Last updated: 2015-01-23Bibliographically approved

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Stemme, Göran
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