Adjustable positioning housing assembly for an infrared thermocouple

Abstract

A position housing assembly, for a generally cylindrical infra-red thermocouple sensor of the type having a sensing face at one end and one or more electrical conductors extending from the other end, includes a cylindrical housing having a central bore for telescopically receiving a sensor. A conical reflective surface, at one end of the housing, concentrates infra-red rays toward the face of the sensor; the reflective surface may be integral with the housing or it may be carried by a separable adapter. A separable handle attaches to the housing, and extends into the housing wall for guiding conductors from a sensor to the exterior of the housing. A set screw on the housing clamps the sensor within the central bore. Adjustable positioning legs extend axially from the housing to position it relative to a test surface. In one embodiment the legs are attached to a moveable positioning bracket, while in another, the legs slide within axial bores integrally formed in the housing. A clamping screw or screws lock the legs or the movable bracket in position. Rotatable rollers may be provided at the ends of the positioning legs to facilitate movement of the housing along a surface. Calibration marks on the housing or on the legs further facilitate positioning of the legs relative to the housing.