Abstract:
An analyzing apparatus for measuring samples of a liquid has feeding means for feeding the samples contained in sample containers to a subsequent sample conduit, the feeding means having a substantially funnel shaped filling mouth serving for fastening sample containers of very different shapes, such as syringes, pipettes or capillary tubes, and the dimensions of the outlet opening thereof varying within wide limits. A cleaning device can be used, which has a washing body which during the cleaning operation, together with the funnel shaped filling mouth, defines an annular gap adapted to match the form of the filling mouth and is providable with a cleaning medium.To ascertain the presence and opening diameter category of a sample container and to automatically adjust the appropriate operating condition of the analyzing device, at a distance before the sample feeding inlet, an oscillation emitter and, with respect to the center of the sample feeding inlet, diametrically opposite the emitter and at a distance from the center of the sample feeding inlet, at least two identical detectors for the emitter oscillations are arranged, whereby according to the respective number of detectors which, after insertion of a certain sample container in the sample feeding inlet, will receive a signal or not, depending on the dimensions of the sample container present between emitter and detector, the adequate operating condition of the analyzing device is automatically adjustable.
Abstract:
In order to improve the shelflife of tonometered fluids containing at least one dissolved gas component and being packaged in a flexible container, a gas phase containing at least the dissolved gas component of the fluid is additionally introduced into the flexible container. The volume of the tonometered fluid and the volume of the gas phase together amounting to less than the maximum filling volume of the flexible container, which is collapsed when it is empty but unfolding when it is being filled.
Abstract:
This invention relates to a procedure for analyzing and influencing the driveability of motor vehicles, including the following steps: Conducting tests on a real vehicle to obtain measurement variables describing its driveability; Continuous monitoring to check whether at least one of a number of predefined trigger conditions is fulfilled, i.e., whether a certain set of variables takes on certain values; If the trigger condition is fulfilled, computation of a profile of several ratings representing vehicle driveability from one or more measured values, using predefined functional relationships. An improvement of analysis and control is achieved by deriving from the measurements at least one variable representing the type of driver of the vehicle concerned, and by determining the value of at least one control variable influencing vehicle driveability as a function of the value of the driver-related variable, such that the profile of the several ratings closely approaches a predetermined profile depending on the variable representing the type of driver.
Abstract:
A device designed for determining one or more medical variables in living organisms, comprises a part to be inserted into the tissue of the organism, which has an exchange channel with openings into the tissue. The device comprising a delivery unit connected with the exchange channel for the delivery of a perfusion fluid and its drainage after partial equilibration with the medical variable or quantity to be measured, i.e., preferably glucose concentration, and comparatively constant endogenous or exogenous marker variables. The device further comprising an analyzing unit for measuring the medical variable and one marker variable, and an evaluation unit for determining the actual concentration of the medical variable with the use of the marker variables. The proposal is put forward that the part to be inserted into the tissue is configured as a flexible plastic cannula, and that this cannula is provided with a puncturing needle on one end, and that the two ends of the cannula are connected to feeder and drainage tubes of the delivery unit both on the pressure and suction side.
Abstract:
In order to reduce the water content in piezoelectric GaPO.sub.4 crystal elements the proposal is put forward that each GaPO.sub.4 crystal element should be cut in its entirety from one uniform growth zone of a GaPO.sub.4 raw crystal bar and should not contain any zone boundaries, and that the piezoelectric GaPO.sub.4 crystal elements should be treated with a dehydrating solution, until an infrared coefficient of .alpha.
Abstract:
A transducer comprising a flexible piezoelectric layer as a sensor element for measuring mechanical quantities in hollow bodies, above all pressures in pipes, the opposite sides of this layer being bonded to electrically-conductive contact layers and being connectable via leads to a display and evaluation unit. In order to achieve a high temperature stability in such transducers and to make them suitable for use at temperatures exceeding 80.degree. C., the piezoelectric layer is proposed to consist of wurtzite or sphalerite. One of the electrically-conductive contact layers can be of some heat-resistant, flexible supporting material, for instance flexible metal foil, such as Cu-Be foil, or a sheet of plastic, one or both of whose sides are metallized, and the other electrically-conductive contact layer can be a metal coating applied by evaporation.
Abstract:
A device for equilibrating small quantities of a liquid reagent or a test solution with a gas-containing liquid or a gas in which at least part of the passage of the reagent leads through a hollow space that is separated by a permeable wall from a gas chamber which is closed, except for an inlet and an outlet opening, and which may be charged with the gas or gas-containing liquid. In order to ensure good mixing of the test liquid during equilibration, the hollow space carrying the liquid is configured as a tube or hose with one or more helical sections inside the gas chamber whose walls are permeable to the gas.
Abstract:
A transducer device for measuring the internal pressure in pipes, comprises two housing parts which are articulately connected with one another by a connecting element and adapted to be fixedly mounted on the pipe by means of a clamping device. Each housing part contains at least one measuring element with a bipolar take-off of the test signals. At least one pole of each take-off is electrically conductingly connected with a part of the connecting element which is electrically insulated relative to the other pole and the connecting element comprises connection terminals for the further conduction or transmission of the test signals. The other pole is potentially in direct connection with the pipe. Thereby, a convenient and easy way is created for achieving electric compensation of the interfering signals within the transducer itself, thus replacing the separate, in each case bipolar conduction of the test signals out of the two housing parts with a combined, now altogether bipolar outgoing lead for the fully compensated test signals from the transducer.