Ultrasonic Meter Condition Based Maintenance - A Fully Automated Solution

摘要

The significant benefit of the USM is the ability to provide diagnostic information for the user to help determine the meter's "health." The CBM 2Plex (4+1) meter design relies on basically two principles. First, the fiscal meter is chosen to be the least sensitive to any flow profile changes that may occur in normal operation. Second, the "check" meter design is chosen to be one that is the most sensitive to any flow profile changes. Ideally, any affect from a profile change would not only have a significantly different impact on accuracy for each path layout, but the affect would be in oppositerndirections, making the difference much easier to detect.