Abstract:
A aferição e classificação da concentração de álcool se faz com base na absorção e reflexão de ondas eletromagnéticas na faixa de Rádio Frequência, RF, em um equipamento próprio para uso em condições de campo e em linha de produção, determinando a quantidade de etanol na mistura, além de outros componentes a ela adicionados. A bebida a ser testada passa por uma linha de transmissão, especialmente projetada. A medida da absorção e reflexão na faixa de Rádio Frequência possibilita uma determinação mais precisa da concentração de álcool na bebida, sendo especialmente calibrada para o etanol. Esse aparelho possibilita o monitoramento da concentração de álcool nas várias fases de produção.
Abstract:
A system for the measurement of free and bound SO 2 in a liquid beverage product sample comprising a sample container (10) having a volume sufficient to provide a headspace (14) above the sample (12) into which a gas can pass; a gas flow system (6) adapted to extract gas from the headspace (14) and recirculating it back into the liquid volume (12); a measurement system (4) configured to monitor a time dependent evolution of SO 2 in gas from the gas flow system (6); and a dosing apparatus (8) fluidly connected to the container (10) to supply an hydrolysis reagent thereto. A heater unit (3) is provided for supplying thermal radiation into the container (10) to elevate the temperature of sample therein sufficient to facilitate the hydrolysis reaction and a signal processor (30) operates to deconvolute the monitored evolution to generate an indication of the concentration of each of the free SO 2 and the total SO 2 content of the sample.
Abstract:
Die Erfindung bezieht sich auf ein neuartiges Verfahren zur Bestimmung oder Messung des Gehalts an wenigstens einem Filterhilfsmittel in einem Unfiltrat.
Abstract:
A device for determining one or more parameters of interest for bioalcohol liquors comprising a sample compartment (202), a source of infrared radiation (200), a means for detection (204) of one or more one or more spectral characteristics in the spectral region from 400 cm -1 to 4000 cm -1 , and a means of data processing (206) characterised in that the sample presentation unit is arranged to provide an optical interface for absorption spectroscopy and the means of data processing (206) is specifically configured to predict said one or more parameters of interest from said one or more spectral characteristics.
Abstract:
An apparatus (100) and method (400) for detecting the presence of one or more chemical contaminants in/on a plurality of items, e.g. cork stoppers (110), using nose chips (310). The apparatus (100) utilizes detection sensor electronics (225) that are separate from the nose chips (310) such that each nose chip (310) can be either reused or discarded after use. The apparatus (100) moves the nose ch (310) and the cork stoppers (110) independently to align the cork stopper and a corresponding nose chip (310) with one another. The testing apparatus (100) uses multiple sensor units (135) to simultaneously test multiple cork stoppers (110) for chemical contaminants (e.g. TCA).
Abstract:
The invention concerns a device for the spectrometric assay of a liquid vinefication product (1) comprising an optical spectrometer (5) adapted to generate spectral information from the contents of a spectroscopic a sample cell (4); a data processor (10) having access to a chemometric calibration (11) developed from a spectral database (12) linking optical spectral information to compounds of interest in the liquid vinefication product (1) and configured to process the same to generate an output result (13) indicative of the presence of one or more compounds of interest in the liquid vinefication product (1) characterized in that the device further comprises a freezer unit (3) adapted for freeze distillation of the liquid vinefication product (1) to generate a liquid distillate for analysis in the spectroscopic sample cell (4).
Abstract:
Apparatus for the determination of ethanol content in liquid or aeriform substances, said apparatus comprising a sensing element (10) comprising an optical resonant microcavity comprising layers (11, 11a, 11b, 12, 13) of porous material suitable for receiving and releasing in its pores vapors of said liquid or aeriform substances (24) . According to the invention, one or more of said layers (11, 11a, 11b, 12, 13) of porous material include porous silicon oxide.
Abstract:
A device for measuring at least one volatile component of an aqueous solution, in particular for measuring alcohol, comprises a measurement chamber (2) having on opposite sides a sensor (5) for measuring the volatile component and a membrane (3) which is permeable to the volatile component and closes a chamber opening (4), as well as an outgoing air conduit (9) connected to the measurement chamber (2). In order to create advantageous measurement conditions, the measurement chamber (2) is connected at the top to the outgoing air conduit (9) and at the bottom to a fresh air conduit (8), and accommodates a heat source (10).