Abstract: The invention relates to arrangements and methods for improving the signal and transmission properties of laser/electro-optical mixers (EOM) of measuring and data transmission links. The idea of attempting to suppress coherent properties of laser light is novel since, until now, the aim has always been to obtain the greatest possible coherence or coherence length in most technical applications. The invention has the following features: suppressing coherence and intensity fluctuations in the beam path of laser EOM by using optical methods and suppressing the coherence in the output radiation of the laser source, e.g. by a remodulated current pulse modulation or excitation of a number of modes within a laser diode (VCSEL).

Abstract: The invention relates to a BIMSM element (M,M?), in which at least the substrate (1,1?), the electrode pair (2) and the photosensitive layer (3) are combined in a monolithic structure. According to the invention, at least one electrode of the electrode pair (2) can be used to induce a modulation voltage, at least one electrode of the electrode pair (2) can be used to decouple a mixed product and the MSM element (M,M?) can be used as an electro-optical mixer.

Abstract: According to the invention a reference measurement is carried out without or with only one measurement object and the frequencies of the noise fraction are determined for the resulting frequency spectrum. Discrete measurement values are determined at equidistant sampling points in the form of complex-value overlays of oscillation functions and the noise and useful frequencies and by means of mathematical calculation methods corrected by the noise fractions. The measurement values corrected in this way are then subjected to a known method of frequency analysis.

Abstract: The invention relates to a method for controlling a PMD system which is characterized by controlling a photoelectronic mixing device (PMD) by at least one modulation signal (Umod) and one modulation signal (Umod) that is complementary thereto. A transmitter (E) emits electromagnetic radiation that is intensity-modulated by means of the at least one modulation signal (Umod). The inventive method is further characterized by varying the modulation signal (Umod) between at least two modulation frequencies (f1,f2,fi).

Abstract: The PMD system comprises at least one PMD element (PMD), at least one transmitter (E), whose intensity can be modulated, and at least one controlling electronic device (FG) by means of which the PMD element (PMD) and the transmitter (E) can be controlled with at least one respective modulation voltage (Umod, Umod, UTxmod), and by means of which a phase shift (&Dgr;f) can be altered by an actuating signal. The PMD system is characterized in that a controlled system (CTR) is provided into which at least one output signal (Ua, Ub, Ud) of the PMD element (PMD) can be fed as a controlled variable (U′d) and whose output signal (U1phs, U1fc) can be fed into the controlling electronic device (FG) as an actuating signal, whereby the controlled variable (U′d) can be set to the value of a predetermined target variable by the controlled system (CTR).

Abstract: The invention relates to a compressor (2) which is encapsulated in a housing (4) and which can be rotated about the axis (16) of its crankshaft (8) while maintaining the oil lubrication of the moving parts of the compressor. The interior (14) of the housing (4), in which an oil sump (18) is located, is connected flow-wise to the compressor (2). According to the invention, the interior (14) is connected to two gas lines (24, 26) which lead to a common manifold (32) via at least one shutoff valve (28, 30). The connecting openings (25, 27) of the two gas lines (24, 26) leading into the interior (14) are arranged opposite to one another in the vicinity of the axis (16) of the crankshaft (8). By these measures, the compressor can be inclined relative to the horizontal over a wide angular range without lubricating oil flow into the gas loop.

Abstract: Hermetically encapsulated rotary piston compressor with horizontally disposed, at least partially hollow crankshaft. The lubricating oil is sucked up by a dynamic vacuum created in a compressed gas line, out of an oil sump, by means of an oil suction pipe, and is conveyed together with the compressed gas into the hollow part of the crankshaft, which has inside the cylinder housing radial bores for oil supply to the moving parts of the compressor. According to the invention, the oil suction pipe is mounted for rotation about the axis of the crankshaft. Thereby the oil supply is maintained in any position resulting from any rotation of the compressor about the horizontal axis of its crankshaft.

Abstract: In a gasification burner comprising an antechamber for mixing fuel and primary air; a catalytic device for generating a fuel gas from the fuel/primary air mixture; a mixing chamber for mixing the fuel gas with secondary air; an annular space which surrounds the antechamber, the catalytic device and the mixing chamber being separated from the antechamber by a ring wall provided with radial canals; a combustion chamber and a burner plate terminating the combustion chamber; and an ignition chamber arranged between the combustion chamber and the mixing chamber the operating safety is increased by having the annular space also enclose the ignition chamber and the combustion chamber in ring-fashion and extend up to the vicinity of the burner plate; a primary air feed stub opening into the annular space; and baffles in the annular space which baffles conduct the primary air stream from the primary air feed stub to the radial canals of the ring wall in spiral or meander fashion about the combustion chamber and the ig

Abstract: A gas generator which comprises a heat resistant housing and a reaction chamber which is centrally arranged therein and contains a catalytic charge, with an inlet opening for the reactants and an outlet opening for the fuel gas is used for catalytically reacting liquid, hydrocarbon containing fuel to be evaporated with an oxygen containing gas at elevated temperature to form a fuel gas. The housing consists of a lower part and a removable cover and the reaction chamber including the catalytic charge is replaceable. The fuel and/or the oxygen containing gas is fed to the reaction chamber for preheating and evaporating, respectively, via a system of tubes which is arranged between the reaction chamber and the lower part of the housing and is run around the reaction chamber in helical fashion.

Abstract: A vaporizing burner which includes a multi-portioned burner housing. The housing encompasses an inlet chamber, ahead of which there is located an antechamber which transitions into an annular passageway wherein heating oil is vaporized. The heating oil is admixed with preheated primary air and converted into a fuel gas in a catalyzer arrangement. Thereafter, the fuel gas is admixed with secondary air in a mixing chamber, ignited in an ignition chamber and conveyed into a further chamber. The last-mentioned chamber is closed off by a burner plate which is heated by the fuel gas and which transmits the usable heat to a suitable heat exchanger.

Abstract: A starting device for reformed gas generators of the type in which atomized or evaporated liquid, hydrocarbon containing fuel is catalytically reacted with a gas containing oxygen at elevated temperatures to form a fuel gas, includes a conically shaped housing having an outlet for coupling to the inlet of the reformed gas generator, a gas permeable burner plate within said housing, a fuel injection nozzle arranged so that nearly the entire surface of the burner plate is supplied with fuel, a heat-resistant, gas permeable terminating plate filling, the outlet of the starting device and defining, with the burner plate, a combustion chamber, an ignition device disposed in said combustion chamber and means for introducing the air and atomized fuel into the combustion chamber through the burner plate.

Abstract: Apparatus for distributing flowing media from one flow cross section to a different flow cross section in a funnel-shaped tubular enclosure open at both ends. A plate having a multiplicity of parallel passage canals is arranged perpendicular to the axis of the tubular enclosure leaving free passage openings between the edge of the plate and the tubular enclosure and the flared opening of the funnel shaped tubular enclosure is filled by an end plate with a multiplicity of parallel passage canals.