Calibration device for use in calibrating a sensor

A device for calibrating a sensor, said device comprising;

• (a) a fluid-tight calibration chamber of a calibration housing, said chamber comprising a rupturable barrier on at least one side;
• (b) a calibration fluid inside the chamber, said fluid having a predetermined composition or condition, wherein said barrier is configured so that the sensor makes contact with the fluid when the barrier is ruptured by the sensor;
• and
• (c) a membrane configured essentially parallel to the barrier and outside of the first chamber, the membrane being permeable to components to which the sensor is sensitive, and the device further comprising a fixing means for cooperating with the membrane and the sensor to secure the membrane to the sensor in a stretched state when the sensor is essentially perpendicularly applied against the membrane.

A device that is suitable for use in the calibration of a sensor, said device comprising a sealed housing comprising at least two chambers, wherein

• (a) a first fluid-tight calibration chamber is covered on at least one side by a fluid-tight, rupturable barrier, and said first chamber contains a first fluid having a predetermined composition or condition;
• (b) a second chamber is configured adjacent to the first chamber and is separated from the first chamber by the fluid-tight, rupturable barrier, and said second chamber contains a second fluid and is covered on at least one side by a lid;
• and
• (c) a membrane is configured essentially parallel to the barrier and outside of the first chamber, the membrane being permeable to components to which the sensor is sensitive, and the device further comprising a fixing means configured to cooperate with the membrane and the sensor in such a way that the membrane is secured to the sensor in a stretched state when the sensor is essentially perpendicularly applied against the membrane.

A device for calibrating a sensor in a calibration fluid, said device comprising a calibration housing with a calibration chamber holding a calibration fluid of a known composition or condition, wherein

• said calibration chamber has an opening for allowing said sensor to be at least partially inserted in said calibration chamber to enable said sensor to at least partially contact said calibration fluid during calibration of said sensor;
• said opening is sealed by a fluid-tight rupturable barrier for enabling said calibration chamber to remain fluid-tight with said calibration fluid sealed therein prior to calibrating said sensor;
• said barrier is rupturable by said sensor when at least part of said sensor is moved through said opening and into said calibration chamber and into contact with said calibration fluid;
• and
• said calibration housing is configured for engagement with said sensor for providing a releasable fluid-tight seal between at least part of said sensor and said calibration chamber when the sensor is inserted in said calibration housing.