Method for determining true meridian of an unmovable object on the earth and device for its implementation

• US 20080010843A1
• Filed: 07/28/2006
• Published: 01/17/2008
• Est. Priority Date: 07/13/2006
• Status: Active Grant

• Current Assignee: George Naumov, Michael Naumov
• Original Assignee: George Naumov, Michael Naumov
• Inventors: Naumov, George, Naumov, Michael
• Granted Patent: US 7,805,848 B2
• Time in Patent Office: Days
• US Class Current: 33/324
• CPC Class Codes: G01C 19/38 with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth's rotation

Abstract

The technical solution provided enables it to determine true meridian of an unmovable object on the Earth, and when moving at constant velocity true track angle.

This solution is based on fixation of true meridian by zero value of linear acceleration with induced rotating points of determining pressure around the vertical.

Said determinations are implemented quickly and accurately, irrespective of the disturbing factors influence, in particular, electromagnetic and magnetic fields, weather conditions, vibrations, cross accelerations, temperature and others.

Claims

1. Method for determining true meridian of an unmovable object on the Earth comprising the following stages:

location of the points of determining pressure of a device of horizontal acceleration symmetrically relative to the vertical,

induced rotation of said points around the vertical,

fixation of true meridian by zero signal of linear acceleration.

2. Device for determining true meridian of an unmovable object on the Earth comprising the following things interconnected with each other:

an electric motor, the axis whereof located along the vertical,

the device for determining horizontal acceleration, fastened therupon, containing points of determining pressure symmetrically located relative to said axis,

a control circuit that realizes the fixation of true meridian by zero signal of linear acceleration received from the above mentioned device,

a device for determining horizontal acceleration, the axis of sensitivity whereof, when switching off the rotation of the axle of an electric motor, being superposed with the direction perpendicular true meridian.

3. Device as set forth in claim 2, wherein a device for determining horizontal acceleration comprising:

two sealed vessels filled with flowing medium, having in each of asymmetrical counter-oriented counters of the cross-sections of the inner cavities of the vessels, upper and lower points remaining in each of the counters as such within permissible tilting in the operating condition,

pressure pickups connected with the vessels, points of determining pressure whereof being chosen similarly located in the inner cavities of the vessels on the parallel straight lines containing said upper and lower points,

a differential scheme, said pickups being switched whereto, at the output whereof a signal of acceleration being taken off.

4. Device as set forth in claim 3, wherein the contour of the cross-section of the inner cavity of each vessel being chosen asymmetrical relative to the straight line of said contour, containing upper and lower points.

5. Device as set forth in claim 4, wherein said counter-orientation of asymmetrical contours of the cross-sections of the inner cavities of the vessels being implemented by location of the outermost along the horizontal points of said contours on either side from the points of determining pressure.

6. Device as set forth in claim 5, wherein the vessels being fastened on the axle of an electric motor located along the vertical so that said parallel straight lines be parallel to said axle and located symmetrically relative to it.

7. Device as set forth in claim 2, wherein a control circuit comprising interconnected switch-on/off buttons with a spring, an electromagnet and a relay, broken contacts whereof being switched to the circuit of said electromagnet.