The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 1992
Filed:
Mar. 20, 1989
Craig S Custer, Pompano Beach, FL (US);
CTE Chem Tec Equipment Co. Inc., Deerfield Beach, FL (US);
Abstract
A method is disclosed calibrating a volumetric fluid flow sensor having a pole magnet armature in which a direction of reciprocation of the armature is co-linear with a magnetic axis thereof and in which there is provide a magnetic field sensor for sensing the position and strength of the magnetic axis of the magnetic armature. A path of fluid flow is defined which includes an inlet channel for contaning the reciprocation of the magnetic armature and having an outlet channel radially oriented relative to the input channel and in fluid communication with the inlet channel. A calibration magnet, located co-axially with the armature magnet provides a repulsive force to the armature magnet which, in co-action with the fluid force of the measured volumetric fluid flow provided an adjustable point of equilibrium of the armature and thereby an adjustable actuation point thereof. Different ranges of sensitivity are achieved through adjusting certain variables to thereby change the point of actuation between the magnetic and fluid forces.