Abstract: Embodiments provide a method for acoustically testing at least one MEMS device of a plurality of MEMS devices. The method comprises a step of providing at least one MEMS device. Additionally, the method comprises a step of exciting the at least one MEMS device to an acoustic vibration. Additionally, the method comprises a step of detecting the acoustic vibration of the at least one MEMS device by at least one sound sensor. Additionally, the method comprises a step of evaluating the acoustic vibration of the at least one MEMS device detected by the at least one sound sensor to test the at least one MEMS device as to an intended functionality.

Abstract: A sampling system for taking fuel samples from an external fuel tank includes a mobile platform, a sample tank carried by the mobile platform, and a supply line connected to the sample tank and configured to conduct the fuel from the external fuel tank into the sample tank. A mixing device is disposed in the sample tank and configured to mix fuel in the sample tank. A discharge line connected to the sample tank and configured to discharge the fuel from the sample tank. A sampling device is configured for removing a partial quantity of the fuel from the sample tank. A method for operating the sampling system is also described.

Abstract: A sampling system for taking fuel samples from an external fuel tank includes a mobile system, a sample tank carried by the mobile system, and a supply line connected to the sample tank and configured to conduct the fuel from the external fuel tank into the sample tank. The sampling system includes a discharge line connected to the sample tank and configured to discharge the fuel from the sample tank. The sampling system includes a sampling device configured for removing a partial quantity of the fuel from the sample tank. A method for operating the sampling system is also described.