| 摘要 |
<p>The method involves measuring the quotient of the temperature under reference condition by two temperature sensors (3,4), where the measurement depending on one of the two determined temperatures or the determined mass flow (m), and stored in a memory. The quotient of the temperature is measured by both the temperature sensors, and from which the mass flow is determined in normal operation. The actual measured quotient differs from the stored quotients at the same mass flow from the corresponding reference measurement that is more than a predetermined tolerance.</p> |
