Rotational speed sensor and production method therefor
A rotation speed sensor, configured to detect a rotation speed of a rotating body, is composed of a cable composed of an electric wire including a conductor wire, and a sheath provided over the electric wire, a circuit substrate mounted with an integrated circuit thereon and connected to the conductor wire being exposed from the cable, and a housing including a first housing, which is configured to hold the circuit substrate therein, and a second housing, which is configured to hold the cable therein, with the first housing being welded to the second housing, and with the second housing being welded to a surface of the sheath of the cable.
1. A cable with housing, comprising:
a cable composed of an electric wire including a conductor wire, and a sheath provided over the electric wire;
an integrated circuit connected to the conductor wire being exposed from the cable; and
a housing including a first housing, which is configured to hold the integrated circuit therein, and a second housing, which is configured to hold the cable therein, with the first housing being welded to the second housing, and with the second housing being welded to a surface of the sheath of the cable,
wherein the first housing has a property of absorbing a specific wavelength of laser light, while the second housing has a property of transmitting the specific wavelength of the laser light.
2. The cable with housing according to claim 1 , wherein the first housing comprises a resin material impregnated with a dye for dyeing with a predetermined color to absorb the specific wavelength of the laser light.
3. The cable with housing according to claim 2 , wherein the second housing comprises a resin material, which is the same in type as the resin material used in forming the first housing.
4. The cable with housing according to claim 3 , wherein the first housing and the second housing both comprise a nylon resin.
5. The cable with housing according to claim 1 , wherein the first housing includes a ring shape welded portion, which is welded to the second housing.
6. The cable with housing according to claim 1 , further comprising: a circuit substrate mounted with the integrated circuit thereon, wherein the conductor wire is electrically connected to the circuit substrate by soldering.