Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system
Patent
1994-05-31
1996-01-09
Chilcot, Jr., Richard E.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Specified electrical sensor or system
73800, G01B 1100
Patent
active
054819229
ABSTRACT:
The design of transducers utilizing finite length sensor paths is discussed. Within the framework of linear elastostatics of an isotropic homogeneous material the normal, transverse, and shear components of strain along a path can be integrated over a finite length to separate and yield external loading components. These displacement measurements over a long distance accommodate the use of fiber optic displacement sensors. The use of optical interferometric sensors in contrast with electrical strain gauges, has the potential to allow the precision and range of the component measurement to scale with the geometry of the device rather than the maximum strain in the instrument. It becomes possible by virtue of these scaling properties to construct a better transducer. The design of transducers that measure all six resultant-load components using both electrical strain gauges and fiber-optic interferometric sensors are described. An advanced torsion sensor and a linear acceleration transducer are also discussed. In addition, a "null" transducer that is potentially useful as a "structural integrity" sensor is presented. Finally, practical consideratios in the design of finite length sensor path transducers are noted.
REFERENCES:
patent: 2626337 (1953-01-01), Mitchell
patent: 3246510 (1966-04-01), Ruge
patent: 4191470 (1980-03-01), Butter
patent: 4295738 (1981-10-01), Meltz et al.
patent: 4360272 (1982-11-01), Schmadel
patent: 4634852 (1987-01-01), Shaw
patent: 4725728 (1988-02-01), Brininstool
patent: 4781741 (1988-11-01), Johnson
patent: 4850693 (1989-07-01), Deason
patent: 5011280 (1991-04-01), Hung
patent: 5166742 (1992-11-01), Kobayashi
patent: 5218197 (1993-06-01), Carroll
patent: 5289256 (1994-02-01), Gramling
Chilcot Jr. Richard E.
Noori Max H.
LandOfFree
Elastic transducer designs incorporating finite length measureme does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Elastic transducer designs incorporating finite length measureme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elastic transducer designs incorporating finite length measureme will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1296077