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:
Nov. 26, 2002
Filed:
Oct. 15, 1999
William M. Mansfield, Lafayette, CO (US);
Michael J. Zolock, Longmont, CO (US);
Micro Motion, Inc., Boulder, CO (US);
Abstract
Meter electronics for a Coriolis flowmeter capable of being intrinsically safe. A signal conditioner receives power from a power supply in a host system remote from the signal conditioner. Drive circuitry in the signal conditioner generates a drive signal and applies the drive signal to a driver affixed to at least one conduit of the Coriolis flowmeter. Pick-off signal conditioning circuitry in the signal conditioner receives input signals from a first pick-off sensor and a second pick-off sensor affixed to the at least one conduit of the Coriolis flowmeter, generates information indicating properties of a material flowing through the conduit from the input signals, and transmits output signals containing the information to the host system. Host-side protection circuitry in the signal conditioner prevents power in excess of an intrinsically safe threshold from being applied to wires connecting the signal conditioner to the host system and flowmeter assembly protection circuitry in said signal conditioner prevents power in excess of the intrinsically safe threshold from being applied to wires connecting the signal conditioner to the driver, the first pick-off sensor, and the second pick-off sensor.