Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and method for determining filling level or detecting the amount of a medium, e.g. the amounts of liquids, in a plurality of closely adjacent containers.SOLUTION: The apparatus (100) for the capacitive determination of the fill level in the individual containers (5.1 and 5.2) of a group (10) of regularly disposed containers of the same dimensions has a transmission electrode (201.1) and receiving electrode (201.2 and 201.3) in addition to a transmission circuit (57) and receiving circuit (58) for carrying out a capacitive measurement. The apparatus includes a plurality of electrodes (201.1, 201.2 and 201.3) which protrude in one direction in relation to a horizontal plane defined by a base plate (200) and which are uniformly mutually spaced apart such that a plurality of working zones of the same dimensions are formed. By means of connections 202 respectively, one of these two electrodes (201.1) is used as a transmitter and the other of the two electrodes (201.2 and 201.3) is used as a receiver.
Abstract:
PROBLEM TO BE SOLVED: To at least partially eliminate defects that have conventionally been known in a positive displacement pump with a pressure sensor used for a pipet device or send device. SOLUTION: A cylinder wall (4) includes a piston sleeve (14) that is located on an inner side of the cylinder wall (4) and that extends over essentially the entire length of the pump cylinder (2) to a cylinder bottom (5). The improved alternative positive displacement pump is further characterized in that a main portion (13) of a pressure channel (12) is located in the cylinder wall (4) including the piston sleeve (14), which is thus preventing the pump piston (7) from touching or compromising the pressure sensor (10) or an inner surface (30) of the cylinder wall (4) when moving past the position of the pressure sensor (10). COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an alternative laser scanner apparatus for imaging fluorescent samples which are located on specimen slides and treated with two different fluorescent dyes. SOLUTION: The laser scanner apparatus 1 includes: a sample table 2; lasers 51 and 52 and a first optical system 53, for providing laser beams 54 and 55 of differing wavelengths; an optical deflection element 56 for deflecting the laser beams; a first objective lens 57 for focusing the laser beams on the samples; a second optical system 58 for transmitting emission beam bundles 59 and 60 from the samples to detectors 61 and 61'; and the two detectors for detecting the emission beam bundles. The optical deflection element includes a wedge-shaped dichroic mirror 62 having dichroic surfaces 63 and 64, which are arranged at an intermediate angle (β), on a front side and a rear side. The mirror is adjusted such that the two laser beams are each reflected at one of the dichroic surfaces 63 and 64, to cause a spatial separation of two beam focusing points 65 and the two emission beam bundles. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide one apparatus constituted so as to measure the light and/or fluorescence emitted from a specimen mixed with a reagent and irradiated with exciting light and housing an injector and/or an injection needle so as to easily replace the same. SOLUTION: The apparatus (1) for observing the reaction of each of the samples (2) to which the reagent (3) is added and/or a method for using this apparatus are disclosed. The apparatus includes at least one first optical device (4) for observing the samples (2) in a first observation region (6) through which a first optical axis (5) pierces, in the direction of the first optical axis, a first device (7) for receiving containers (8) housing the samples (2) and arranging the specimens in the containers in one row with respect to the first optical axis (5), an injection device (10) for adding a liquid (3) to the samples (2) and a light emitting device (17) for irradiating the samples (2) with exciting light having a first wavelength. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a micro-cuvette that removes or minimizes any known defect.SOLUTION: This micro-cuvette assembly for checking a biological sample includes: a first partial plate including one or more first cuvette surfaces; and a second partial plate arranged so as to face the first partial plate and including one or more second cuvette surfaces. The micro-cuvette assembly is characterized such that the first and second cuvette surfaces of the micro-cuvette at the operating position of the micro-cuvette assembly are made wet by a liquid volume preliminarily added to one of the first and second cuvette surfaces so as to be held between the two cuvette surfaces of the micro-cuvette.
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid level detection method capable of applying a highly-reliable output signal.SOLUTION: Method and corresponding apparatus for liquid level detection with a capacitive liquid level detector (14) includes the steps of: generating a clock signal with a predetermined on-time (t1) corresponding to a predetermined sensitivity of the capacitive liquid level detector (14); being fed both to a reference generator (12) and to the capacitive liquid level detector (14); the reference generator (12) generating a control value derived from an on/off ratio of the clock signal and feeding it into a control input (19) of a comparator (18); feeding a liquid detection response signal of the capacitive liquid level detector (14) in response to the clock signal into a signal input (20) of the comparator (18); and the comparator (18) triggering an output signal at an output (21) when the liquid detection response signal exceeds a threshold in response to a change of the input capacitance (C) of the capacitive liquid level detector (14).
Abstract:
PROBLEM TO BE SOLVED: To provide a microplate carrier for a microplate which can be efficiently cleaned by sufficiently replacing a liquid in wells. SOLUTION: The invention relates to a microplate carrier for a microplate. The microplate has wells in which magnetic particles are suspended in a liquid, with or without samples adhering thereto, and the microplate carrier comprises permanent magnets generating magnetic fields which are constituted to collect and retain the magnetic particles on the floor and/or on the walls of the wells of this microplate, and the microplate carrier according to the invention is characterized in that it comprises two permanent magnets situated diametrically opposite in relation to the well for each well of the microplate, which have the same polarity directed toward the well and whose magnetic axis is at least essentially perpendicular to the footprint of the microplate to be placed. COPYRIGHT: (C)2009,JPO&INPIT