Apparatus for optical measurement of substance concentrations
AssigneesJ&M Analytik AG, GEA Process Engineering (NPS) Ltd
InventorsJoachim Mannhardt, Trevor Page
Life of this patent
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Abstract
An apparatus for optical measurement of substance concentrations has at least one transmitter arranged in or on a housing and at least one receiver for optical radiation, and a deflection device, which is at a distance from the at least one transmitter and the at least one receiver and is arranged within the substance when the apparatus is being used correctly, for deflection of the optical radiation from the at least one transmitter to the at least one receiver. The distance between the deflection device and the at least one transmitter and/or the at least one receiver can be varied by means of an adjusting device.
Claims19
1-19. (canceled)
An apparatus for the optical measurement of substance concentrations, having at least one transmitter arranged in or on a housing and at least one receiver for optical radiation and having a deflection device, which is arranged, if the apparatus is used correctly, in the substance and is at a distance from the at least one transmitter and the at least one receiver, for deflecting the optical radiation from the at least one transmitter to the at least one receiver, wherein the distance of the deflection device from the at least one transmitter and/or the at least one receiver can be altered by way of an adjustment device, wherein the deflection device can be adjusted with respect to the at least one transmitter and the at least one receiver in a manner such that the deflection device forms a closed hollow space with the housing.
The apparatus as claimed in claim 1, wherein the adjustment device has at least one holding element and a displacement element which is mounted in the at least one holding element such that it can be displaced, with one of the components of the adjustment device being connected to the housing and the other component being connected to the deflection device.
The apparatus as claimed in claim 1, wherein the adjustment device can be adjusted manually.
The apparatus as claimed in claim 1, wherein the adjustment device can be adjusted by electrical, hydraulic or pneumatic means.
The apparatus as claimed in claim 1, wherein a seal is arranged between the deflection device and the housing.
The apparatus as claimed in claim 1, wherein a flushing device for flushing the hollow space between the housing and the deflection device is provided.
The apparatus as claimed in claim 6, wherein the flushing device has at least one supply line for a cleaning agent, and a suction line.
The apparatus as claimed in claim 6, wherein a drying device for drying the hollow space, which has been flushed by way of the flushing device, between the housing and the deflection device is provided.
The apparatus as claimed claim 1, wherein a distance measuring device for measuring the distance between the deflection device and the at least one transmitter and the at least one receiver or a housing is provided.
The apparatus as claimed in claim 1, wherein the deflection device is arranged such that the optical radiation passes twice through the substance.
The apparatus as claimed in claim 1, wherein the deflection device is arranged such that the optical radiation passes once through the substance.
The apparatus as claimed in claim 11, wherein a pipe, through which the optical radiation is guided, is arranged in the region between the housing and the deflection device.
The apparatus as claimed in claim 1, wherein a plurality of transmitters and a plurality of receivers associated with the transmitters are provided.
The apparatus as claimed in claim 1, wherein the apparatus is configured such that the optical ration which is incident on the substance to be measured and that component of the optical radiation which reaches the receiver are substantially at right angles with respect to one another.
The apparatus as claimed in claim 14, wherein the apparatus has a reflective element which is used to deflect that component of the optical radiation in the direction of the receiver which is emitted by the substance to be measured in the direction opposite the receiver.
The apparatus as claimed in claim 14, wherein the apparatus has means for the simultaneous or sequential measurement of absorption, fluorescence and scattering by the substance to be measured.
The apparatus as claimed in claim 1, wherein the substance to be measured is guided in a pipe, wherein the housing is inserted into the pipe at a first end and the adjustment device is inserted into the pipe at a second end.
The apparatus as claimed in claim 17, wherein the housing and the adjustment device are inserted into the pipe in a manner such that the respective openings in the pipe have a common central axis.
Dependencies are inferred from the claim text.