Rotation sensor
View Patent ↗A rotation sensor includes a detecting element housed in a sensor casing. In an assembled state on a vehicle body member, the detecting element detects a rotation of a rotating object. An antistatic layer composed of an antistatic agent is formed at least at a part of the sensor casing around the detecting element. The antistatic layer is grounded by being connected to the vehicle body member in the assembled state.
1. A rotation sensor comprising:
a detecting element to detect a rotation of an object disposed external to the sensor; and
an antistatic casing housing the detecting element, and including an antistatic layer formed around the detecting element and arranged to be connected to a ground.
2. A rotation sensor comprising:
a detecting element to detect a rotation of an object; and
an antistatic casing housing the detecting element, and including an antistatic layer formed around the detecting element and arranged to be connected to a ground,
wherein the antistatic casing includes a sensor casing housing the detecting element, wherein the antistatic layer is made of an antistatic agent applied on a surface of the sensor casing.
3. The rotation sensor as claimed in claim 1 , wherein the antistatic layer forms a sensor casing made of a material containing an antistatic agent and housing the detecting element.
4. The rotation sensor as claimed in claim 1 , wherein the antistatic layer is composed of an antistatic agent containing a nonmagnetic conductive substance.
5. The rotation sensor as claimed in claim 1 , wherein the detecting element is a magnetic transducer element.
6. The rotation sensor as claimed in claim 2 , wherein the antistatic layer is formed on an outer surface of the sensor casing.
7. A rotation sensor comprising:
a detecting element to detect a rotation of an object; and
an antistatic casing housing the detecting element, and including an antistatic layer formed around the detecting element and arranged to be connected to a ground,
wherein the antistatic casing includes a case member projecting from an open end to a bottom end, the case member housing the detecting element at the bottom end,
wherein the antistatic layer is formed at a bottom part and an outer circumference of the case member.
8. The rotation sensor as claimed in claim 7 , wherein the antistatic casing includes a housing mounted on the open end of the case member; and the antistatic layer is arranged to be connected to the ground via the housing.