Abstract:
The invention relates to a power generation apparatus (1), in particular for expanding the range of an electrically operated vehicle, having an internal combustion engine (5) and a generator (6), which is situated coaxially to the output shaft (7) of the internal combustion engine (5), internal combustion engine (5) and generator (6) being situated in a housing (2, 3) through which cooling air flows. In order to increase the power density, minimize the noise emission, and allow a compact construction, it is provided that internal combustion engine (5) and generator (6) are implemented as a unit (10) and are situated in a substantially tubular cooling chamber (4) formed by an inner housing, an intake air duct (8) opening into the cooling chamber (5) on the side of the generator (6), preferably approximately in the area of the output shaft axis (7′), and an exhaust air duct (9) originating from the cooling chamber (4) on the side of the internal combustion engine (5), preferably in the area of the output shaft axis (7′), and the internal combustion engine-generator unit (10) being mounted in the housing (2, 3) via noise-damping engine bearings.
Abstract:
A device for the sampling of body fluids using a hollow needle (6), is provided with a storage system (3) with several separate sample containers (4) placed on a movable carrier (9). The containers (4) which are sealed by puncturable membranes (5) so as to be gas-tight, will receive collected fractions of the body fluid at given intervals, a device (7) connected to a control unit (2) being provided, by which the hollow needle (6) is positioned over each sample container (4) in turn and is inserted through the membrane (5) into the sample container. The sampling device 1 is configured as a two-channel cannula (18), one (19) of whose channels is connected via a first connecting tube (25) to the hollow needle (6) used for insertion into the sample containers (4), while its other channel (20) is connected via a second connecting tube (26) to a pump (8'; 21) operated by the control unit (2). In their unused state the individual sample containers (4) are filled within an amount of gas or gas mixture whose volume at atmospheric pressure is smaller than that of the body fluid to be received.
Abstract:
Due to the size of the devices used for the excitation and measuring of light, conventional sensor elements for optically determining the concentrations of substances contained in gaseous and liquid samples, featuring an indicator layer with one or more indicator substances, are not well suited for use with microanalysis equipment, nor are they easy to mass-produce. These disadvantages are eliminated by using a unitary sensor element having a carrier layer, at least one photosensitive element with electric contact leads in contact with the carrier layer, and an indicator layer containing an indicator substance.
Abstract:
A transducer with a flexible sensor element for measurement of mechanical values, at least one flexible piezoelectric sensor element being provided for piezoelectrical or capacitive measurement, the opposite surfaces of the sensor element being at least partially connected to electrically leading contact surfaces.
Abstract:
In a pressure indicator for measurement of hot pressure mediums, comprising an indicator housing adjustable to an opening in an enclosure for the medium to be measured, a measuring element, and a power train comprising a diaphragm connected to the housing and a power transmission element for connecting the diaphragm to the measuring element, a narrow gap is provided for between at least one of the parts of the power train on the one side and the housing on the other side, and that part of the housing being adjacent the gap is substantially in direct heat conducting connection with the enclosure for the medium when the indicator is adjusted to the opening therein.
Abstract:
A transducer comprising a piezoelectric measuring sensor element for measurement of mechanical values on hollow bodies, especially of the pressure distribution within pipes, the piezoelectric sensor element being a flexible piezoelectric film, the opposite surfaces of the film being in connection with electrically leading contact surfaces, and the measuring sensor element being at least partially and at least indirectly closely joinable to the surface of the hollow body.
Abstract:
The present invention relates to a method for analyzing the driving behavior of motor vehicles on a roller type test stand, with the following steps: performance of a predetermined operating cycle in a motor vehicle which is disposed on a roller type test stand; determination of a first longitudinal acceleration signal from a speed signal which is tapped from the power train of the motor vehicle or the roller type test stand; determination of a second longitudinal acceleration signal by an acceleration sensor attached to the motor vehicle; superposition of the first and second longitudinal acceleration signal into a composite signal; determination of a parameter representative of the driveability of the motor vehicle from the composite signal.
Abstract:
A device for withdrawing a liquid from a sealed glass ampoule includes a frame holding the sealed glass ampoule in upright or slightly inclined position, such that a tip of the ampoule points upwardly. An element is provided which will press or knock against the side of the tip or neck of the ampoule in order to break the tip of the ampoule in the region of the neck. The device further includes a withdrawing element which can be introduced into the glass ampoule in an area between the bottom of the ampoule and the surface of the liquid therein, and which includes a cannula for withdrawing the liquid.
Abstract:
For quality control of packaged organic substances, preferably packaged foods and drugs, the materials to be examined are brought into contact with a planar optical sensor element which is applied on the inside of the wrapping and responds to a change in the gas composition in the gas space above the sample by a change in color or fluorescence. The change of one of the optical properties of the sensor element is detected visually or opto-electronically.
Abstract:
Due to the size of the devices used for the excitation and measuring of light, conventional sensor elements for optically determining the concentrations of substances contained in gaseous and liquid samples, featuring an indicator layer with one or more indicator substances, are not well suited for use with microanalysis equipment, nor are they easy to mass-produce. These disadvantages are eliminated by integrating on the carrier layer (1) at least one photosensitive element (3) and its electric contact leads in planar arrangement, and by establishing optical contact between the indicator substance (7, 7') of the indicator layer (6) stimulated by the excitation radiation (11), and the photosensitive elements (3).