Inclination sensor
First Claim
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1. An inclination sensor comprising:
- a fixing body adapted to be attached to a mounting body;
a frame provided within said fixing body, said frame having a threaded bearing retention hole;
a bearing having a thread on a periphery thereof and fitted within said threaded bearing retention hole;
a pendulum having a rotary shaft rotatably supported in said bearing;
a magnetic flux generator mounted on said pendulum for rotatable movement with said pendulum through a rotational path; and
a reed switch mounted on said fixing body in the rotational path of said magnetic flux generator, said reed switch having a space of a distance d in a direction along an axis of said rotary shaft provided between said reed switch and said magnetic flux generator, wherein said space of a distance d is adjustable via said thread; and
at least one magnetic damping adjusting device made of a magnetic material and adjustably positioned on said fixing body.
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Abstract
An inclination sensor having excellent rotational performance, longlasting stability and high sensing precision. The inclination sensor comprises a pendulum (10) rotatably attached to a case (1) of a fixed body secured to an attached member, a magnetic flux-generating means (11) attached to the pendulum (10), reed switches (4a) and (4b) attached to part of the case (1) corresponding to the locus along which the magnetic flux-generating means (11) moves, and a flange portion (12) which is a damping body being nonmagnetic and electrically conductive and disposed in the case (1) along the locus of the movement of the magnetic flux-generating means (11).
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Citations
40 Claims
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1. An inclination sensor comprising:
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a fixing body adapted to be attached to a mounting body;
a frame provided within said fixing body, said frame having a threaded bearing retention hole;
a bearing having a thread on a periphery thereof and fitted within said threaded bearing retention hole;
a pendulum having a rotary shaft rotatably supported in said bearing;
a magnetic flux generator mounted on said pendulum for rotatable movement with said pendulum through a rotational path; and
a reed switch mounted on said fixing body in the rotational path of said magnetic flux generator, said reed switch having a space of a distance d in a direction along an axis of said rotary shaft provided between said reed switch and said magnetic flux generator, wherein said space of a distance d is adjustable via said thread; and
at least one magnetic damping adjusting device made of a magnetic material and adjustably positioned on said fixing body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. An inclination sensor comprising:
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a fixing body adapted to be attached to a mounting body;
a pendulum mounted rotatably relative to said fixing body;
a magnetic flux generator mounted on said pendulum for rotatable movement with said pendulum through a rotational path;
a reed switch mounted on said fixing body in the rotational path of said magnetic flux generator; and
a nonmagnetic and electrically conductive damping body positioned on said fixing body along the rotational path of said magnetic flux generator, wherein said damping body has a shape of a circular arc cylinder or a semicircular cylinder wherein a cross sectional shape of said damping body is one of a reversed letter T, a letter J or a letter W.
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40. An inclination sensor comprising:
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a fixing body adapted to be attached to a mounting body;
a frame provided within said fixing body, said frame having a threaded bearing retention hole;
a bearing having a thread on a periphery thereof and fitted within said threaded bearing retention hole;
a pendulum having a rotary shaft rotatably supported in said bearing;
a magnetic flux generator mounted on said pendulum for rotatable movement with said pendulum through a rotational path; and
a plurality of reed switches mounted on said fixing body in respectively different locations about the rotational path of said magnetic flux generator to distinguish one of (a) between clockwise and counterclockwise rotation and (b) a plurality of rotating angles of said inclination sensor.
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Specification