Curvature control

Details Curvature control Curvature control

1977-02-08

1979-02-20

Schaefer, Robert K.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318567, 73619, 318568, G05B 1918

Patent

active

041409540

ABSTRACT:
Herein described is an electronic control system for guiding a search unit of a nondestructive material tester over sloped or curved surfaces and shapes. More particularly described is the index system used on an indexing-scanning (inspection) device. An oscillator provides a preset number of pulses through an angle rate generator and direction logic to a binary coded decimal pulse counter. The counter keeps track of the input pulses provided thereto (each pulse represents an 0.1.degree. increment) therefore, its contents are indicative of the angle accumulated therein. A pair of read only memories provides the sine function and cosine function of the accumulated angle as a binary coded decimal trigonometric representation of the input angular degree. The signals therefrom control respective Y and Z rate generators whose input clock rate is indicative of the velocity along the curve of the pivot point of the search unit. Signals from the Y, Z and angle rate generators are provided to their respective translators which in turn control the Y, Z and gimbal motors.

REFERENCES:
patent: 3813528 (1974-04-01), Blanding
patent: 3898838 (1975-08-01), Connelly
patent: 3983374 (1976-09-01), Sorensen et al.

Affiliated with

Also associated with

Rating

Curvature control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Curvature control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Curvature control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-260157