The present invention generally relates to improved methods for the manufacture of inhalation powders. More particularly, aspects of the disclosure relate to methods for in-line monitoring of powder blending by Raman spectroscopy.

A computer implemented method is disclosed herein for monitoring and determining a quality level of incoming raw material from one or more sources. The method includes (1) receiving visual data associated with the incoming raw material; (2) determining an indication of quality level associated with the incoming raw material; and (3) transmitting, to at least one of a graphical user interface (GUI) and a computer log, the indication of quality level and at least one timestamp associated with the visual data. The visual data may include a plurality of images received from one or more cameras configured for monitoring the incoming raw material. A related system is also disclosed herein.

The present invention generally relates to improved methods for the manufacture of inhalation powders. More particularly, aspects of the disclosure relate to methods for in-line monitoring of powder blending by Raman spectroscopy.

Techniques for processing ore include the steps of causing an imaging capture system to record a plurality of images of a stream of ore fragments en route from a first location in an ore processing facility to a second location in the ore processing facility; correlating the plurality of images of the stream of ore fragments with at least one or more characteristics of the ore fragments using a machine learning model that includes a plurality of ore parameter measurements associated with the one or more characteristics of the ore fragments; determining, based on the correlation, at least one of the one or more characteristics of the ore fragments; and generating, for display on a user computing device, data indicating the one or more characteristics of the ore fragments or data indicating an action or decision based on the one or more characteristics of the ore fragments.

The invention relates to a method for determining an averaged color value of a transparent bulk material, which allows an online measurement of the averaged color value in transmission. Also disclosed is a sample of a transparent bulk material having an averaged color value with small standard deviation and a molded body which comprises such a sample.

A seamless fumed silica monolithic integrating cavity device tailored to analyzing a flowed sample. The device is configured to facilitate optical measurements taken from a sample flowed through a cavity of the device. The cavity is defined by a fumed silica monolith with the added feature of a fused quartz lining on the surface of the monolith. This provides an intermediate surface that allows for cleaning and reuse of the highly effective diffuse light scattering fumed silica monolith. The lining may be placed under pressure or vacuum to structurally enhance mechanical integrity of the underlying monolith. Thus, continued or reliably repeated use of the device may be appreciated as well as use in more industrial environments that are prone to vibration. Additionally, while well suited for flow-based sample analysis, a valve of the cavity may be utilized for holding a sample in a temporarily static state for measurement.

The invention relates to a method for detecting a material flow (10), comprising the following steps: generating a transmitted THz beam (3) by means of a THz sensor (2), guiding the transmitted THz beam (3, 3-1, 3-2) through a material flow (10) along at least one first optical axis (A1), reflecting the transmitted THz beam (3, 3-1, 3-2) which has passed through the material flow (10) by means of at least one reflector mirror (8, 9) detecting the reflected THz reflection beam (4) and generating a signal amplitude (Sa), determining a reflector peak in the signal amplitude (Sa) corresponding to the reflector mirror, evaluating (analyzing) the determined reflector peak in an evaluating step and determining material properties of the material flow (10) depending on the evaluating step.

Hereby, in particular, it is possible to first carry out a calibration measurement of a guiding device without any material flow (10), while storing the signal amplitude and/or a determined reflector peak of the signal amplitude, and subsequently guiding the material flow (10) through the guiding device (5) and acquiring the signal amplitude, so as to determine differences of the signal amplitude of the calibration measurement and the subsequent measurement with the material flow (10).

An identification apparatus includes a plurality of collecting units configured to collect scattered light from a plurality of test items, a first spectroscopic unit configured to disperse light from part of the plurality of collecting units, a second spectroscopic unit configured to disperse light from a remaining part of the plurality of collecting units, an imaging unit configured to acquire a first spectrum projected from the first spectroscopic unit and a second spectrum projected from the second spectroscopic unit, the imaging unit including a plurality of light receiving elements arranged at least in a first direction, and an acquisition unit configured to acquire information about the test items based on an output signal from the imaging unit. One of a wavenumber of the first spectrum and a wavenumber of the second spectrum in the first direction increases while the other one decreases.

A method for detecting mentholated tobacco, comprising irradiating tobacco containing menthol and a fluorescent taggant with radiation and observing the tobacco for fluorescence from the taggant. A system and method for detecting and separating mentholated tobacco from non-mentholated tobacco within a product stream is also provided.

A stimulated Raman scattering microscope device is configured to irradiates a sample with a first optical pulse at a first repetition frequency, to irradiate the sample with a second optical pulse of an optical frequency different from an optical frequency of the first optical pulse at a second repetition frequency, and to detect optical pulses of the first repetition frequency that are included in detected light from the sample irradiated with the first optical pulse and the second optical pulse, as a detected optical pulse train. The second optical pulse is generated by dispersing predetermined optical pulses that include lights of a plurality of optical frequencies, regulating to output optical pulses of a predetermined number of different optical frequencies out of the dispersed optical pulses at the second repetition frequency, and coupling the regulated optical pulses.