초록 ▼

Apparatus for sensing the load on a platform without error caused by variations in the location of the load on the platform, including an integral sensor block comprising a double cantilever beam having one end attached to a fixed support and the opposite end supporting the platform. The beam is div

Apparatus for sensing the load on a platform without error caused by variations in the location of the load on the platform, including an integral sensor block comprising a double cantilever beam having one end attached to a fixed support and the opposite end supporting the platform. The beam is divided into upper and lower portions, each portion having two flexures spaced apart along the length of the beam portion. The flexures on the lower beam portion are spaced apart by a distance greater than the distance between the flexures in the upper beam portion. Strain gage resistance elements are bonded to the outer surface of the upper portion at the flexure.

대표청구항 ▼

Apparatus for sensing a force acting in a predetermined direction but subject to change in location of the center of application of the force, comprising: a. a member comprising a horizontal platform for receiving said force, said member having substantial extent at right angles to said direction; b

Apparatus for sensing a force acting in a predetermined direction but subject to change in location of the center of application of the force, comprising: a. a member comprising a horizontal platform for receiving said force, said member having substantial extent at right angles to said direction; b. an integral cantilever beam having one end attached to a fixed support and an opposite end supporting said member against said force, said beam consisting essentially of said ends and first and second generally parallel horizontally elongated portions of equal horizontal transverse dimension connecting said ends, said first portion being closer to said member than the second, said first portion having a flat upper surface which is the upper surface of the beam and being spaced above said second portion, said first portion having two flexures formed therein and spaced apart along the length of said first portion, said second portion having two flexures formed therein and spaced apart along the length of said second portion by a distance greater than the space between the flexures in said first portion; and c. strain gage elements attached to the flat upper surface of said first portion at the flexures therein.