Title:
FLOAT TYPE MAGNETIC DETECTOR
Document Type and Number:
Japanese Patent JP2006138829
Kind Code:
A
Abstract:
To provide a detector reactive to vertical magnetism with minimized mechanism parts.
In this detector, a magnetic needle unit 3 is subjected to water repellent treatment, and the inner wall of a chamber 4 is subjected to hydrophilic treatment. According to this, the magnetic needle unit itself is moved within the chamber in magnetic field directions N and S by a vertical magnetic field component, whereby the intensity of vertical magnetic field is detected.
Inventors:
ASANUMA SHUHEI
Application Number:
JP2004355994A
Publication Date:
June 01, 2006
Filing Date:
November 10, 2004
Export Citation:
Assignee:
SOLIDALLIANCE CORP
International Classes:
G01C17/08