| 摘要 |
The measurement of technical parameters relating to the air, such as air humidity, air temperature, and air quality, is distorted by local influences such as radiant heat or thermal bridges. Results recorded by sensors for detecting gases in the air, for example for monitoring purposes or for explosion protection, can also be falsified by local non-homogeneities. The invention relates to the permanent, artificial forced ventilation of a measuring device for at least one sensor by means of a silently operating ion ventilator. According to the invention, the high voltage driving the ion ventilator can be produced by means of a piezoelectric transducer. The invention also relates to applications for detecting parameters relating to the air inside motor vehicles, and to methods for carrying out said method. |
