Coriolis mass flow meter using contactless excitation and detection

A. Mehendale (Inventor), Joost Conrad Lotters (Inventor), Joost Conrad Lötters (Inventor), Jan Marinus Zwikker (Inventor)

Research output: PatentProfessional

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Abstract

A mass flowmeter of the Coriolis type with a tube through which a medium flows during operation and with excitation means for causing the entire tube or part thereof to perform a rotational vibration about a primary axis of rotation during operation. The excitation means are electromagnetic and designed such that they do not make contact with the tube during operation and have no components that are fastened to the tube. More in particular, the tube is made of an electrically well conducting material, and the excitation means comprise first means for causing an electric current to flow through the tube during operation and second means for generating a magnetic field at the area of a portion of the tube, which magnetic field is perpendicular to the direction of the current and in operation either the current or the magnetic field changes its sign periodically, with the result that the (Lorentz) force generated by the product of current and magnetic field causes a rotational oscillation of the entire tube or a portion thereof about the primary axis of rotation.
Original languageUndefined
Patent numberEP20060075885
Priority date8/11/06
Publication statusSubmitted - 14 Apr 2006

Keywords

  • METIS-248258
  • EWI-12730
  • IR-62299

Cite this

Mehendale, A., Lotters, J. C., Lötters, J. C., & Zwikker, J. M. (2006). Coriolis mass flow meter using contactless excitation and detection. Manuscript submitted for publication. (Patent No. EP20060075885).
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title = "Coriolis mass flow meter using contactless excitation and detection",
abstract = "A mass flowmeter of the Coriolis type with a tube through which a medium flows during operation and with excitation means for causing the entire tube or part thereof to perform a rotational vibration about a primary axis of rotation during operation. The excitation means are electromagnetic and designed such that they do not make contact with the tube during operation and have no components that are fastened to the tube. More in particular, the tube is made of an electrically well conducting material, and the excitation means comprise first means for causing an electric current to flow through the tube during operation and second means for generating a magnetic field at the area of a portion of the tube, which magnetic field is perpendicular to the direction of the current and in operation either the current or the magnetic field changes its sign periodically, with the result that the (Lorentz) force generated by the product of current and magnetic field causes a rotational oscillation of the entire tube or a portion thereof about the primary axis of rotation.",
keywords = "METIS-248258, EWI-12730, IR-62299",
author = "A. Mehendale and Lotters, {Joost Conrad} and L{\"o}tters, {Joost Conrad} and Zwikker, {Jan Marinus}",
year = "2006",
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Coriolis mass flow meter using contactless excitation and detection. / Mehendale, A. (Inventor); Lotters, Joost Conrad (Inventor); Lötters, Joost Conrad (Inventor); Zwikker, Jan Marinus (Inventor).

Patent No.: EP20060075885.

Research output: PatentProfessional

TY - PAT

T1 - Coriolis mass flow meter using contactless excitation and detection

AU - Mehendale, A.

AU - Lotters, Joost Conrad

AU - Lötters, Joost Conrad

AU - Zwikker, Jan Marinus

PY - 2006/4/14

Y1 - 2006/4/14

N2 - A mass flowmeter of the Coriolis type with a tube through which a medium flows during operation and with excitation means for causing the entire tube or part thereof to perform a rotational vibration about a primary axis of rotation during operation. The excitation means are electromagnetic and designed such that they do not make contact with the tube during operation and have no components that are fastened to the tube. More in particular, the tube is made of an electrically well conducting material, and the excitation means comprise first means for causing an electric current to flow through the tube during operation and second means for generating a magnetic field at the area of a portion of the tube, which magnetic field is perpendicular to the direction of the current and in operation either the current or the magnetic field changes its sign periodically, with the result that the (Lorentz) force generated by the product of current and magnetic field causes a rotational oscillation of the entire tube or a portion thereof about the primary axis of rotation.

AB - A mass flowmeter of the Coriolis type with a tube through which a medium flows during operation and with excitation means for causing the entire tube or part thereof to perform a rotational vibration about a primary axis of rotation during operation. The excitation means are electromagnetic and designed such that they do not make contact with the tube during operation and have no components that are fastened to the tube. More in particular, the tube is made of an electrically well conducting material, and the excitation means comprise first means for causing an electric current to flow through the tube during operation and second means for generating a magnetic field at the area of a portion of the tube, which magnetic field is perpendicular to the direction of the current and in operation either the current or the magnetic field changes its sign periodically, with the result that the (Lorentz) force generated by the product of current and magnetic field causes a rotational oscillation of the entire tube or a portion thereof about the primary axis of rotation.

KW - METIS-248258

KW - EWI-12730

KW - IR-62299

M3 - Patent

M1 - EP20060075885

ER -

Mehendale A, Lotters JC, Lötters JC, Zwikker JM, inventors. Coriolis mass flow meter using contactless excitation and detection. EP20060075885. 2006 Apr 14.