Citex Holding Gmbh

Inoex Gmbh Innovationen Und Ausrustungen Fur Die Extrusionstechnik

Roland Böhm

Ralph Klose

David Winking

Juliane Dr Eggert

The invention relates to a method for calibrating a THz measuring apparatus (), in particular a pipe, on a measurement object (), comprising at least the following steps: providing a THz measuring apparatus () having a plurality of pivotable THz sensors (), arranged in a circumferential direction around a measuring chamber (), for outputting one THz transmitted beam () each along a sensor axis (B) (provision step); orienting the THz sensors () into a starting position in the measuring chamber () in which the measurement object () is received (orientation step in starting position); allocating the THz sensors () to at least one first and one second sensor group (group formation step); first calibration adjustment step, in which the second sensor group is adjusted as an adjustment group by means of the first sensor group as a starting group, and corresponding second calibration adjustment step, in which the first sensor group is adjusted as an adjustment group by means of the previously calibration-adjusted second sensor group as a starting group; wherein, in each of the calibration adjustment steps=by means of the THz sensors (S, S, S, S) of the starting group, spacing points on a surface () of the measurement object () are determined, =sensor correction angles of the THz sensors (; S, S, S, S) of the adjustment group are determined by means of the spacing points determined by the starting group, and =the THz sensors of the adjustment group are calibration-adjusted about the determined sensor correction angles (a).

Method for calibrating a THz measuring apparatus, THz measuring method and corresponding THz measuring apparatus

The present disclosure relates to a pneumatic suction conveying apparatus for conveying granulated bulk materials and a corresponding method, comprising a pump unit with a vacuum pump and a suction volume, at least two suction lines, which is connected to the suction volume and extends towards storage containers for receiving bulk materials, the suction lines each comprising a conveying hopper for separating the bulk material and a stop valve for blocking the suction line. Hereby, in the suction line there is each provided a closed control loop comprising an adjustable throttle valve and a flow sensor provided in the suction line, the control loop being adapted and designed to adjust the throttle valve depending on a measurement of the flow sensor.

Suction conveying apparatus and method for suction conveying of bulk material

The invention relates to a THz measuring device for measuring a layer thickness of a wall () of a measurement object () and/or of a distance () between boundary surfaces () of a measurement object (), comprising a transmitter and receiver unit () including a Terahertz-Sender and a Terahertz receiver, a controller means configured to determine the layer thickness of the wall () of the measurement object () and/or a distance () between boundary surfaces () of the measurement object () from a time-of-flight difference of the Terahertz radiation reflected on a first boundary surface () of the wall () of the measurement object () and the Terahertz radiation reflected on a second boundary surface () of the wall (), where in the beam path () of the at least one transmitter and receiver unit () an adjustable optical unit () including a reflector is arranged, where a surface of the reflector is designed to deflect the irradiated Terahertz radiation and/or the Terahertz radiation reflected from the respective boundary surface () for adjusting the optical axis (C) of the transmitter and receiver unit (). Hereby, according to the invention, it is provided that the reflector is designed to be deformable so that a beam cross-section of the irradiated Terahertz radiation can be modified in a focusing plane () lying downstream from the reflector in the radiation direction of the irradiated Terahertz radiation, the focusing plane being adjustable by deforming the reflector.

THz measuring device and THz measuring method for determining a layer thickness or a distance of a measurement object

The present disclosure relates to a method for vibration feeding of bulk material and a vibration feeder device provided for such purposes, comprising a material feed, a charging hopper including a hopper discharge, a feeder tray, a height adjustment means for adjusting a level height between the hopper discharge and the feeder tray, and a vibration driver for driving the feeder tray at an oscillation amplitude and an oscillation frequency, where a target material throughput and material specific parameters of the bulk material are input, initial parameters for the level height, oscillation amplitude and oscillation frequency are determined from these inputs, and subsequently the level height is adjusted by controlling the height adjustment means.

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Altenberge, Germany

Roland Böhm