Vibrating member for a vibrating densitometer
AssigneeMicro Motion, Inc.
InventorsAnthony William Pankratz, Megan Casey
Life of this patent
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Abstract
A vibrating member (412) adapted for use in a vibrating densitometer (400) includes a base (407) and a vibrating tube portion (405) affixed to the base (407). The vibrating tube portion (405) includes a first arcuate portion (430a), a second arcuate portion (430b), a first non-arcuate portion (432a), and a second non-arcuate portion (432b). The first and second non-arcuate portions (432a, 432b) are located between the first and second arcuate portions (430a, 430b). The vibrating tube portion (405) is formed with an oblong cross-sectional shape having a major axis dimension that is greater than a minor axis dimension. The oblong cross-sectional shape increases a frequency separation between vibration modes in the vibrating tube portion (405).
Claims18
A vibrating member (412) adapted for use in a vibrating densitometer (400), with the vibrating member (412) comprising:
- a base (407);
- and
- a vibrating tube portion (405) affixed to the base (407), with the vibrating tube portion (405) comprising:
- a first arcuate portion (430a);
- a second arcuate portion (430b);
- a first non-arcuate portion (432a);
- and
- a second non-arcuate portion (432b), with the first and second non-arcuate portions (432a, 432b) being located between the first and second arcuate portions (430a, 430b), wherein the vibrating tube portion (405) is formed with an oblong cross-sectional shape having a major axis dimension that is greater than a minor axis dimension and wherein the oblong cross-sectional shape increases a frequency separation between vibration modes in the vibrating tube portion (405).
A method for forming a vibrating member adapted for use in a vibrating densitometer, with the method comprising:
- forming a base;
- forming a vibrating tube portion comprising a first arcuate portion, a second arcuate portion, a first non-arcuate portion, and a second non-arcuate portion, with the first and second non-arcuate portions being located between the first arcuate portion and the second arcuate portion, wherein the vibrating tube portion is formed with an oblong cross-sectional shape having a major axis dimension that is greater than a minor axis dimension and wherein the oblong cross-sectional shape increases a frequency separation between vibration modes in the vibrating tube portion;
- and
- affixing the vibrating tube portion to the base.
Dependencies are inferred from the claim text.