| 摘要 |
An ultrasound sensor for determining a fluid level with an elongated housing (1) which comprises a lid (2) and a floor (3), with a measuring chamber (4), arranged in the housing (1), in which a fluid has the same level as outside the measuring chamber (4), and with an ultrasound transmission receiver (5) on the floor (3) within or outside the housing (1) in the area of the measuring chamber (4), the transmitted sound signals of which are reflected on the surface of the fluid and received by the ultrasound transmission receiver (5), in order to determine the fluid level from the signal run time, wherein in the housing (1), alongside the measuring chamber (4), at least one further chamber (6, 7) is arranged at least partially in front of the measuring chamber (4) or at least partially around the measuring chamber (4), wherein the outermost chamber forms the inlet chamber (7), and that the chambers (4, 6, 7) are connected to each other.
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