Omni range inclino-compass

• US 5,287,628 A
• Filed: 06/12/1992
• Issued: 02/22/1994
• Est. Priority Date: 07/09/1991
• Status: Expired due to Fees

• Current Assignee: Takao Yamaguchi
• Original Assignee: Takao Yamaguchi
• Inventors: Yamaguchi, Takao, Nishizawa, Hajime, Kumakura, Toshimi
• Primary Examiner(s): Will, Thomas B.
• Application Number:
  US07/897,903
• Time in Patent Office: 620 Days
• Field of Search: 33/361, 33/362, 33/366, 33/313, 33/319, 364/559
• US Class Current: 33/361
• CPC Class Codes: G01C 17/30 Earth-inductor compasses

Abstract

A solid-state omni range incline-compass having a gravity sensor and a geomagnetic flux sensor provided on, each of three orthogonal axes established on a moving body a unit for generating a mathematic horizontal plane by making a gimbal mechanism as a mathematic equation on the basis of outputs from the gravity sensor located on each of the three orthogonal axes and a unit for calculating an azimuth angle of the moving body on the basis of two orthogonal axes on the mathematic horizontal plane.

Claims

1. A solid-state omni range inclino-compass comprising:

(a) a gravity sensor and a geomagnetic flux sensor provided on each of three orthogonal axes established on a moving body;

(b) means for generating a mathematic horizontal compass by making a gimbal mechanism as a mathematic equation on the basis of outputs from said gravity sensor located on each of said three orthogonal axes;

(c) means for calculating an azimuth angle of said moving body on the basis of two orthogonal axes on said mathematic horizontal compass.