| 摘要 |
A sensor for detecting the knocking of an internal combustion engine which is designed as a surface-micromechanics sensor, with two capacitances changing in opposing senses in the event of an acceleration. With the aid of an evaluating circuit these changes in capacitance are converted into a voltage depending on the capacitance, which is consequently also a measure of accelerations caused by knocking. Knocking arising is detected by evaluating this voltage. |
