Measuring apparatus for measuring the roll gap in gauge-controll

Details Measuring apparatus for measuring the roll gap in gauge-controll Measuring apparatus for measuring the roll gap in gauge-controll

1977-05-27

1979-07-24

Gill, James J.

Measuring and testing

Vibration

By mechanical waves

73628, 73644, G01N 924

Patent

active

041618858

ABSTRACT:
Apparatus is provided for measuring the roll gap in roll stands with automatic gap control. The apparatus comprises two relatively movable components which may interfit telescopically. The two components have respective measuring surfaces at one of which is located a pulsed ultrasonic signal transmitter. A sound receiver is located either on the same measuring surface or on the other measuring surface. Measuring means are provided for measuring the time taken for the sound pulses to travel between the measuring surfaces.

REFERENCES:
patent: 2407294 (1946-09-01), Shockley et al.
patent: 3299696 (1967-01-01), Dickenson
patent: 3401547 (1968-09-01), Hall et al.
patent: 3508623 (1970-04-01), Greenstein

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