Title:
ROTATION ANGLE DETECTION SENSOR AND THROTTLE DEVICE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2015/037562
Kind Code:
A1
Abstract:
[Problem] To provide a rotation angle detection sensor that is low cost and can achieve increased compactness. [Solution] This rotation angle detection sensor (1) is provided with: a detection coil (20) such that a magnetic pathway (25) is formed within the coiling of a wire, the magnetic pathway (25) forming a partial torus; a mobile core (10) that advances/retreats with respect to the magnetic pathway (25) and is supported around a center of reciprocation in a manner able to reciprocate within a predetermined angular region; and a reciprocation arm (13) that supports the mobile core (10) in a manner able to reciprocate. When the core main body (11) of the mobile core (10) advances/retreats within the magnetic pathway (25), the inductance (L) of the detection coil (20) changes, and so the rotational angle can be detected by measuring the inductance (L).
Inventors:
ODA KENZO (JP)
Application Number:
PCT/JP2014/073711
Publication Date:
March 19, 2015
Filing Date:
September 08, 2014
Export Citation:
Assignee:
TYCO ELECTRONICS JAPAN G K (JP)
International Classes:
G01B7/30; F02D9/10; G01D5/20
Foreign References:
| JPS61107101A | 1986-05-26 | |||
| JP2002107106A | 2002-04-10 |
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