Title:
GEOMAGNETISM DETECTING APPARATUS
Document Type and Number:
Japanese Patent JP2630131
Kind Code:
B2
Abstract:
PURPOSE: To simplify magnetization judgment by fixing the outer frame line of the second window for the magnetization judgment without depending on geomagnetism bearing.
CONSTITUTION: A first window W1 is set on a ring along a bearing circle 100 at a constant width. With the original point of the bearing circle as the central point, a circle 103 forming the outer frame of a second window W2 is set. When the output of the geomagnetism sensor is deviated from the first window W1 for a specified time, or when the output of the geomagnetism is deviated to the outside of the second window W2, a magnetization alarm is issued.
Inventors:
OOTA KAZUHIDE
HASHIMOTO TOSHIO
HASHIMOTO TOSHIO
Application Number:
JP24148191A
Publication Date:
July 16, 1997
Filing Date:
September 20, 1991
Export Citation:
Assignee:
TOYOTA JIDOSHA KK
International Classes:
G01C17/28; G01C17/38; (IPC1-7): G01C17/28; G01C17/38
Domestic Patent References:
| JP2218911A | ||||
| JP6438606A | ||||
| JP4262205A | ||||
| JP3148010A | ||||
| JP61215915A | ||||
| JP628011A | ||||
| JP6290508A | ||||
| JP6330714A | ||||
| JP63117212A | ||||
| JP2501855A | ||||
| JP6033366Y2 |
Attorney, Agent or Firm:
Kenji Yoshida (2 outside)