Device for the measurement of the diameter of cylinders

Details Device for the measurement of the diameter of cylinders Device for the measurement of the diameter of cylinders

1992-01-10

1993-03-30

Haroian, Harry N.

Geometrical instruments

Gauge

Circular size

33773, G01B 312, G01B 728

Patent

active

051972000

ABSTRACT:
A device for the measurement of the diameter of a body such as a cylinder, more particularly in the form of a workpiece on a roll grinding machine, having a contact wheel adapted to run on the surface of the body and a first rotational pickup (angle encoder) centrally coupled with or provided with a the contact wheel, and a second rotational pickup, which is adapted to indicate at least full revolutions of the body. The cylinder is coupled with the second rotational pickup (angle encoder), which like the first rotational pickup has high pulse rate for each measurement operation one respective start pulse and end pulse of one of these two pickups is utilized in order, with corresponding pulses of the other of the pickup, to calculate the diameter of the roll. A computer is provided which, by interpolation in each measurement operation of the registered pulses of at least one of the pickups, produces at least one intermediate pulse series with increments, which are respectively smaller than the fixed increments of the one pickup, of which one corresponds with such accuracy to the one end measurement pulse received approximately simultaneously of the one or normal pulse series of the other rotational pickup.

REFERENCES:
patent: 3172208 (1965-03-01), Lowy
patent: 4700484 (1987-10-01), Frank et al.

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