| 摘要 |
Temperature detection device (1), comprising a first and a second detection unit (2a and 2b), of independent type, for detecting the temperature of the same environment /same object (3), each detection unit being equipped with a respective first and second temperature sensor (5a and 5b), characterized in that it comprises temperature changer means (7a and 7b - 9a and 9b - 8a and 8b) able to alter the temperature of said first or said second sensor in a test phase (21), and fault- detection means (4) able to detect a normal operating state (20) if, following activation of the temperature changer means (7a and 7b - 9a and 9b - 8a and 8b), the first and second detection units (2a and 2b) detect significantly different temperatures. |
