Abstract: The invention relates to a liquid cell (1) for the microscopic image capture and Raman spectroscopic material analysis of a particle suspension in a reflected light microscope, having at least the following components: a measuring chamber (2) which has a base (3), a measuring window (5) opposite the base (3), and a seal (6), wherein the base (3) has a planar design at least in one region of the support of the seal (6), and the base (3) has a reflective surface (4) which is provided such that Raman excitation light incident through the measuring window (5) is reflected on the reflective surface (4) in a directed manner such that the background signal in a Raman measurement is reduced and the Raman signal of a particle in a suspension is increased. The invention further relates to a microscope which has such a liquid cell.

Abstract: The invention relates to a liquid cell (1) for the microscopic image capture and Raman spectroscopic material analysis of a particle suspension in a reflected light microscope, having at least the following components: a measuring chamber (2) which has a base (3), a measuring window (5) opposite the base (3), and a seal (6), wherein the base (3) has a planar design at least in one region of the support of the seal (6), and the base (3) has a reflective surface (4) which is provided such that Raman excitation light incident through the measuring window (5) is reflected on the reflective surface (4) in a directed manner such that the background signal in a Raman measurement is reduced and the Raman signal of a particle in a suspension is increased. The invention further relates to a microscope which has such a liquid cell.

Abstract: Disclosed herein is a system, particularly a microscope system, for confocal Raman-spectroscopic measurements. The system is configured to detect minute sample amounts of microbes in a sample chamber with a lid, wherein the system is configured such that a comparably large working distance between the objective lens and the sample is sustained such that a measurement can be performed through the lid of the sample chamber. This allows for cultivating and measuring the sample in the same container.

Abstract: The invention relates to a system (1) for confocal Raman-spectroscopic measurements, comprising at least the following components: a sample chamber (10), wherein said sample chamber (10) is configured to house a sample (2) in a closed chamber volume (12) of the sample chamber (10), an excitation light source (3), an objective lens (4), configured to focus excitation light (32) of the excitation light source (3) through a ceiling portion (11) of the sample chamber (10) in a focal volume (31) in the chamber volume (12) and to collect inelastically scattered light (33) stemming from the focal volume (31), a confocal detection arrangement (20), comprising means for a confocal detection (22, 23) of a Raman signal comprised in the inelastically scattered light (33) from the focal volume (31), and a detector (21) that is configured to detect and to record said Raman signal, wherein the distance (5) between the ceiling portion (11) of the sample chamber (10) and the focal volume (31) is greater than one millim

Abstract: A hybrid drive includes an electric motor coupled to a hydraulic drive having a double-acting hydraulic piston and a piston rod, and a substantially throttle-less valve for actuating the hydraulic drive, and a control unit for actuating the electric machine. To avoid unnecessary energy consumption, an actuating direction requested by the hybrid drive and a desired actuating force are determined, the valve is switched to a position such that the hydraulic drive is effective in the actuating direction, at least when the actuating force cannot be generated by the electric motor alone, the difference between the force generated by the hydraulic drive and the actuating force is determined, and the electric motor is operated such that the desired actuating force is achieved by adding the force generated by the motor to the force generated by the hydraulic drive, or subtracting the first from the latter.

Abstract: The invention relates to a device (100) for identifying biotic particles in a medium to be analyzed, comprising a measuring cell (104), through which the medium to be analyzed can flow and in which the identification of the biotic particles is carried out by means of Raman spectroscopy, and a feed (102) by means of which the medium to be analyzed can be fed to the measuring cell (104). The device (100) according to the invention is characterized in that the feed (102) comprises at least one sensor (101) with which the presence of biotic particles in the medium flowing through the feed (102) can be ascertained. The feed (102) has a controllable bypass valve (103) downstream of the sensor (101), and the medium can be selectively fed to the measuring cell (104) or to a bypass channel (106) via said bypass valve.

Abstract: A hybrid drive includes an electric motor coupled to a hydraulic drive having a double-acting hydraulic piston and a piston rod, and a substantially throttle-less valve for actuating the hydraulic drive, and a control unit for actuating the electric machine. To avoid unnecessary energy consumption, an actuating direction requested by the hybrid drive and a desired actuating force are determined, the valve is switched to a position such that the hydraulic drive is effective in the actuating direction, at least when the actuating force cannot be generated by the electric motor alone, the difference between the force generated by the hydraulic drive and the actuating force is determined, and the electric motor is operated such that the desired actuating force is achieved by adding the force generated by the motor to the force generated by the hydraulic drive, or subtracting the first from the latter.

Abstract: The invention concerns a method of measuring layer thicknesses and layer homogeneities in transparent, internally lubricant- and water-repulsion-coated containers, wherein a lens (2) focuses polychromatic light on to the internal coating (1B) of the container (1), the reflected light is detected again, coupled into a spectrometer and registered by way of a sensitive multichannel detector (7), and corresponding signals are transferred to an electronic evaluation means (8) which digitises the signals and computes the layer thickness from the interference pattern.

Abstract: Methods of fabricating and using a supporting substrate for the deposition, automated recognition and spectroscopic identification of particulate impurities in liquid or gaseous media are disclosed wherein the supporting substrate comprises a filter membrane of polymer materials of a defined pore width, wherein the surface of the filter membrane is coated with metal which in the selected wavelength range for spectroscopic identification has no spectral features and at the selected excitation wavelength absorbs no or only little of the laser energy which is radiated in, and has a very smooth structure.

Abstract: Methods of fabricating and using a supporting substrate for the deposition, automated recognition and spectroscopic identification of particulate impurities in liquid or gaseous media are disclosed wherein the supporting substrate comprises a filter membrane of polymer materials of a defined pore width, wherein the surface of the filter membrane is coated with metal which in the selected wavelength range for spectroscopic identification has no spectral features and at the selected excitation wavelength absorbs no or only little of the laser energy which is radiated in, and has a very smooth structure.

Abstract: A supporting substrate for the deposition, automated recognition and spectroscopic identification of particulate impurities in liquid or gaseous media, comprising a filter membrane of polymer materials of a defined pore width, wherein the surface of the filter membrane is coated with metal which in the selected wavelength range for spectroscopic identification has no spectral features and at the selected excitation wavelength absorbs no or only little of the laser energy which is radiated in, and has a very smooth structure.