The development of the raw density profile is visualised in real time. Thus, the machine operator quickly receives reliable information that he can use for an optimum adjustment of the production process when, for example, starting up the line or changing the product. If irregularities occur, he can immediately take counter-measures. Production faults are detected and can be rectified in time.
A permanent monitoring and control of the raw density profile is part of the important parameters for a cost-optimised manufacture of wood based panels as the product properties of the wood based panels are decisively influenced by specific changes of the raw density profile.
Since the Stenograph does not need a cooling time - also not in continuous measuring operation - inconvenient "blind flights" do not occur during the otherwise usual switch-off phase.
Advantages at a glance
Continuous inline monitoring of the density profile
Reduction of material consumption (wood and glue) by optimising the raw density profile
Reduction of run-in times (start-ups and product changes)
Production optimisation
Measurement of weight per unit area
Import of laboratory measurements for reconciliation
Connection to customer control via OPC
Measuring Method
The STENOGRAPH records the raw density profile contactless by means of X-radiation. The X-ray tube sends a photon ray through the panel in an angle of 45°. A detector A provided at the opposite side detects the transmitted radiation and a detector B which is vertically movable to the ray records the photons spread in the material. This movable detector B scans the panel from edge to edge to be able to record the entire profile.