Measuring and testing – Surface and cutting edge testing – Roughness
Patent
1990-06-27
1992-03-03
Raevis, Robert
Measuring and testing
Surface and cutting edge testing
Roughness
G01B 528
Patent
active
050921630
ABSTRACT:
A precision small scale force sensor utilizing a strain gauge for measurement of foces associated with small scale surface typography, minor pressure variations or other force phenomenon. A sensor or probe is connected to a thin filament of electrically conductive material whose electrical properties vary proportionate to changes in the physical dimensions of the filament. In surface topography applications, the sensor or probe is brought into close proximity with the surface to be measured, in non-contact interaction with the surface. The resultant attractive and/or repulsive forces between the probe and the surface produce deformation of the strain gauge material. Deformation of the strain gauge material results in a change in its electrical properties. The changes are monitored to determine the extent of interactive forces between the probe and the surface. By measuring the changes in the interactive forces as the probe is scanned parallel to the surface, a surface typography can be plotted. In other applications, the force is exerted on the probe which is displaced as a result. The resultant displacement is transferred to the strain filament whose resultant electrical variations are monitored.
REFERENCES:
patent: 2728222 (1955-12-01), Becker et al.
patent: 3067615 (1962-12-01), Holmes
patent: 4106333 (1978-08-01), Salje et al.
patent: 4359892 (1982-11-01), Schnell et al.
patent: 4800274 (1989-01-01), Hansma et al.
patent: 4987303 (1991-01-01), Takase et al.
Raevis Robert
Zito Joseph J.
LandOfFree
Precision small scale force sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Precision small scale force sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precision small scale force sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-264287