Abstract: The invention relates to a method and an apparatus (1) for charging an energy storage (2) via a current generating device (3), comprising at least one control device (6), a burner (7) connected to a tank (11) for fuel supply, a charging device (4) connected to the energy storage (2), and a thermal element (8) whose one side is connected to the current generating device (3). To create such a method and such an apparatus (1), by means of which the capacity of an energy storage (2) of a vehicle (5) can be maintained for a longer period of time, it is provided for the second side of the thermal element (8) to be connected to a heat dissipating element (9) of a vehicle (5), and a monitoring unit (19) for the temperature of the heat dissipating element (9) is provided and connected to the control device (6) so that the current generating device (3) will be controllable to charge the energy storage (2) as a function of the temperature of the heat dissipating element (9).

Abstract: The invention relates to a method and a device (16) for detecting volatile analytes in air samples, where a masssensitive sensor (20) with at least one sensor area (21) which is equipped with a surface layer with selective sensitivity for the analyte(s) to be detected is brought into contact with the air sample to be analyzed, the mass change of the surface layer is detected in the form of electrical signals and the electrical signals are evaluated. It is provided in accordance with the invention that the sensor signal is already evaluated at a point in time at which the maximum sensor signal for the analyte concentration in question is not yet obtained.

Abstract: The invention relates to a method and an apparatus (1) for charging an energy storage (2) via a current generating device (3), comprising at least one control device (6), a burner (7) connected to a tank (11) for fuel supply, a charging device (4) connected to the energy storage (2), and a thermal element (8) whose one side is connected to the current generating device (3). To create such a method and such an apparatus (1), by means of which the capacity of an energy storage (2) of a vehicle (5) can be maintained for a longer period of time, it is provided for the second side of the thermal element (8) to be connected to a heat dissipating element (9) of a vehicle (5), and a monitoring unit (19) for the temperature of the heat dissipating element (9) is provided and connected to the control device (6) so that the current generating device (3) will be controllable to charge the energy storage (2) as a function of the temperature of the heat dissipating element (9).

Abstract: The present invention relates to a method and a device for detecting fumigants in air samples. The device can be designed for example as a portable analyzer 10 equipped with a stab probe 11 for sampling soil air. There are provided detection means 16 which, upon contact with the air sample, generate electrical signals which depend on the concentration of the fumigants to be detected in the air sample. In accordance with the invention, the detection means 16 comprise at least one mass-sensitive sensor, for example an array of quartz microbalances, which have suitable selective surface layers.

Abstract: The invention relates to a method and a device (16) for detecting volatile analytes in air samples, where a mass sensitive sensor (20) with at least one sensor area (21) which is equipped with a surface layer with selective sensitivity for the analyte(s) to be detected is brought into contact with the air sample to be analyzed, the mass change of the surface layer is detected in the form of electrical signals and the electrical signals are evaluated. It is provided in accordance with the invention that the sensor signal is already evaluated at a point in time at which the maximum sensor signal for the analyte concentration in question is not yet obtained.

Abstract: The present invention relates to a method and a device for detecting fumigants in air samples. The device can be designed for example as a portable analyzer 10 equipped with a stab probe 11 for sampling soil air. There are provided detection means 16 which, upon contact with the air sample, generate electrical signals which depend on the concentration of the fumigants to be detected in the air sample. In accordance with the invention, the detection means 16 comprise at least one mass-sensitive sensor, for example an array of quartz microbalances, which have suitable selective surface layers.

Abstract: The invention relates to a method and device enabling time-saving, comparative mass spectrometric analysis of serial samples corresponding to a reference, for example serial samples of a product, by conditioning by means of a reference sample and forming a pattern of a reduced number of fragment ions, said fragment ions having selected from individual mass spectrums of the same separated by gas chromatography, and forming a pattern of a reference random sample from overall mass spectrograms of several reference samples reduced accordingly.

Abstract: A soot blower is provided with a lance which is axially and rotatable displaceable by means of a motor. A driving wheel for effecting the axial displacement is connected with a driving shaft through two free-wheel devices having entrainment members which act in opposite directions and lost motion in the rotational direction of the driving shaft is provided for in one of the free-wheel devices.