Apparatus for calibration of temperature sensors
AssigneeInstrutek Holding, AS
InventorEric Sandmæl
Life of this patent
Estimating the term…
Abstract
There are provided an apparatus for temperature calibration of temperature sensors, and a liner for use in such an apparatus, wherein the liner (9) is adapted to be placed in a cavity (5) in a dry block (1) in the apparatus, and is arranged to receive at least one sensor to be calibrated. The liner has a cavity (10) which is adapted to receive a heat transferring liquid (11) and one or more sensors (13, 14) in the liquid-filled cavity (10). The liner preferably constitutes a container having an open end which is provided with a cap (12) for closing the container.
Claims12
A liner for use in an apparatus for calibration of temperature sensors, wherein the liner (9) being dimensioned to be placed in a cavity (5) in a heat conducting dry block (1) in the apparatus and in close fitting heat conducting contact with the heat conducting dry block (1) and the liner (9) being arranged to receive at least one sensor (13 resp. 14) to be calibrated, characterized in that the liner (9) is a heat conducting cylindrical body in the form of a replaceable container having an open upper end and which has a cavity (10) which is arranged to be filled with a heat-transferring liquid (11) and to receive at least one sensor (13 resp. 14) to be calibrated, so that the sensor is surrounded by the heat-transferring liquid during a calibration operation.
An apparatus for temperature calibration of temperature sensors, comprising a housing unit (2) containing at least one heat conducting dry block (1) having a cavity (5) for receiving a sensor-receiving liner (9), the liner (9) being dimensioned to be received in a close fitting manner in the cavity (5) for heat conduction with the dry block (1), and a heating/cooling means (3) for provision of an accurate temperature to the dry block (1), characterized in that the sensor-receiving liner (9) is a heat conducting cylindrical body in the form of a replaceable container dimensioned for close fitting heat conducting contact with the heat conducting dry block and having an open end and being arranged to be filled with a heat-transferring liquid (11) and to receive at least one sensor (13 resp. 14) to be calibrated, so that the sensor is surrounded by the heat-transferring liquid during calibration.
A method of calibrating temperature sensors using an apparatus comprising a housing unit (2) containing a least one heat conducting dry block (1) having a cavity (5) for close-fitting reception of a sensor-receiving liner (9), comprising:
- placing a sensor-receiving liner (9), which is in the form of a heat conducting replaceable container having an open upper end, in the cavity (5) of the heat conducting dry block (1),
- filling said container (9) with a heat-transferring liquid (11), and
- introducing at least one sensor (13 resp. 14) into the heat-transferring liquid (11) in the heat conducting container (9), so that the sensor (13, 14) is surrounded by the heat-transferring liquid (11) during the calibrating operation.
Dependencies are inferred from the claim text.