Apparatus and method of determining the mass of an article by measuring the shift in the period of harmonic motion
US4778018A · kind A · utility
23Cited by
11References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Jul 13, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G3/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and method of determining the mass of an article by the shift of the period of oscillation of a flexibly mounted platform. An article whose mass is to be determined is placed upon the platform. The platform is caused to oscillate and the period of harmonic motion is calibrated. This period is compared against the period of harmonic motion when there is no article upon the platform, and the difference, or shift, in frequency, allows a determination of the mass of the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.