A sample observation device includes a flow cell in which a fluid containing samples flows, an irradiation unit configured to irradiate the samples flowing in the flow cell with planar light, an image formation unit having an observation axis inclined with respect to an irradiation surface for the planar light, and configured to form an image of observation light generated in the sample due to the irradiation with the planar light, a two-dimensional imaging element configured to capture a light image including at least a cross section of the fluid among light images according to the observation light formed by the image formation unit, and outputs image data, and an analysis unit configured to analyze a light intensity profile of the sample in a flow direction of the fluid on the basis of the image data.

Instruments, systems, and methods for measuring optical density of microbiological samples are provided. In particular, optical density instruments providing improved safety, efficiency, comfort, and convenience are provided. Such optical density instruments include a handheld portion and a base station. The optical density instruments may be used in systems and methods for measuring optical density of biological samples.

A sample observation device includes a flow cell in which a fluid containing samples flows, an irradiation unit configured to irradiate the samples flowing in the flow cell with planar light, an image formation unit having an observation axis inclined with respect to an irradiation surface for the planar light, and configured to form an image of observation light generated in the sample due to the irradiation with the planar light, a two-dimensional imaging element configured to capture a light image including at least a cross section of the fluid among light images according to the observation light formed by the image formation unit, and outputs image data, and an analysis unit configured to analyze a light intensity profile of the sample in a flow direction of the fluid on the basis of the image data.

Method for sorting products and sorting apparatus with a flow of granular products (1) moving in an inspection zone (4), wherein a light beam (8) is moved over the product flow in order to generate a reflected stream of light (12), wherein at least one detector unit (13) is provided to detect light reflected by the products (1) in order to generate detection signals, wherein this detector unit (13) cooperates with a control unit in order to sort the products (1) by means of these detection signals. The invention is characterised in that the detector unit (13) contains at least two sensors (19,20) that are provided one after the other in said reflected stream of light (12) so that a sensor (19) is placed upstream of a downstream sensor (20), wherein each sensor (19,20) detects a different part of the reflected stream of light (12).

Provided herein are an optical test platform and corresponding method of manufacturing the same. The test platform may include a shell defining a cavity for receiving a sample tube, a first aperture, and a second aperture. The first aperture and the second aperture of the shell may each be configured to optically couple the cavity with an exterior of the shell. The test platform may further include a first window and a second window embedded in the shell. The first window may seal a first aperture and the second window may seal a second aperture. The first window and second window may each permit the optical coupling of the cavity with the exterior of the shell. The first window and the second window may be optically coupled via the cavity, and the shell may prohibit optical coupling between the first window and the second window through the shell.

A device for measuring an ionic concentration of an ionic compound in a porous medium solution contained in a porous medium. The device includes a sensing portion, a light source, and a light sensor. The sensing portion is miniaturized and includes a permeable material body defining a measuring cavity therein and is insertable in the porous medium to allow the porous medium solution to diffuse through the permeable material body. The light source illuminates the porous medium solution contained inside the measuring cavity. The light sensor detects a resulting light emanating from the porous medium solution, the resulting light having at least one spectral characteristic indicative of the ionic concentration of the ionic compound in the porous medium solution. There is also provided a method for measuring in situ an ionic concentration of an ionic compound in a porous medium solution contained in a porous medium.

A monitoring probe is for monitoring a fluid inside a process system. The probe has a first portion comprising a plurality of optical sensors provided along a waveguide for monitoring a plurality of measurands from the fluid, wherein each optical sensor is configured to monitor at least one measurand from the fluid. The first portion of the probe is elongate and is configured to be inserted through an aperture of the process system into a chamber of the process system such that the optical sensors are in communication with the fluid. The probe further has an attachment element for securing the probe to the process system.

A method for identification of amino acid residues in a fluid sample (9) is disclosed. The method comprises producing (100) a light signal from a laser (1) and illuminating (120) the fluid sample (9) with the light signal through a lens in a sensing probe (8). A light signal is acquired (130) from the fluid sample (9) and a plurality of features is extracted (140) from the light signal. The extracted plurality of features is compared with a model in a database to determine and quantify the amino acid residues in the fluid sample (9).

Provided herein are an optical test platform and corresponding method of manufacturing the same. The test platform may include a shell defining a cavity for receiving a sample tube, a first aperture, and a second aperture. The first aperture and the second aperture of the shell may each be configured to optically couple the cavity with an exterior of the shell. The test platform may further include a first window and a second window embedded in the shell. The first window may seal a first aperture and the second window may seal a second aperture. The first window and second window may each permit the optical coupling of the cavity with the exterior of the shell. The first window and the second window may be optically coupled via the cavity, and the shell may prohibit optical coupling between the first window and the second window through the shell.

A detector (110) for determining at least one material property of at least one object (112) is proposed. The detector (110) comprises at least one projector (116) configured for illuminating the object (112) with at least one illumination pattern (118) comprising a plurality of illumination features (120); at least one first camera (122) having at least one first sensor element, wherein the first sensor element has a matrix of first optical sensors, the first optical sensors each having a light-sensitive area, wherein each first optical sensor is designed to generate at least one sensor signal in response to an illumination of its respective light-sensitive area by a reflection light beam propagating from the object (112) to the first camera (122), wherein the first camera (122) is configured for imaging at least one first reflection image comprising a plurality of first reflection features generated by the object (112) in response to illumination by the illumination features (120), wherein the first camera (122) is arranged such that the first reflection image is imaged under a first direction of view to the object (112); at least one second camera (124) having at least one second sensor element, wherein the second sensor element has a matrix of second optical sensors, the second optical sensors each having a light-sensitive area, wherein each second optical sensor is designed to generate at least one sensor signal in response to an illumination of its respective light-sensitive area by a reflection light beam propagating from the object (112) to the second camera (124), wherein the second camera (124) is configured for imaging at least one second reflection image comprising a plurality of second reflection features generated by the object (112) in response to illumination by the illumination feature (120), wherein the second camera (124) is arranged such that the second reflection image is imaged under a second direction of view to the object (112), wherein the first direction of view and the second direction of view differ; at least one evaluation device (126) configured for evaluating the first reflection image and the second reflection image, wherein the evaluation comprises matching the first reflection features and the second reflection features and determining a combined material property of matched pairs of first and second reflection features by analysis of their beam profiles.