Apparatus for increasing the resolution of a laser gyroscope

Patent · Tue May 12 04:00:00 EDT 1987

OSTI ID:6507703

Dorsman, A K

This patent describes a laser gyroscope output signal generator for increasing a laser gyroscope output resolution. The signal generator is responsive to a sequence of pairs of phase shifted first and second laser gyroscope output pulses each being characterized to have a first and second logic state. The first and second output pulses in each pair have a leading or lagging phase relationship determined by the direction of rotation the laser gyroscope sourcing the pairs of phase shifted output pulses. The laser gyroscope output signal generator comprises: a first exclusive OR gate having inputs coupled to respective first and second laser gyroscope output pulses; and a first one-shot multivibrator having at least one input responsive to any state change at the output of the first exclusive OR gate to produce an output signal having a pulse recurrent frequency of four times that of the first laser gyroscope output pulse.

• Assignee: Rockwell International Corp., El Segundo, CA
• Patent Number(s): US 4664523
• OSTI ID: 6507703
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ELECTRONIC CIRCUITS
GATING CIRCUITS
GYROSCOPES
LASERS
MOTION
PHASE SHIFT
PULSES
RESOLUTION
ROTATION
SIGNALS