The situation is different with the control of the size and especially the quality of the workpieces or parts on the automatic lines of mechanical processing of wood. The introduction of automatically operating devices will increase the productivity of the line and establish active control over the processed blanks, especially for small parts in size (rack parquet and others).
With a time of operation of the automatic line (for example, the lines for the machining of rack parquet), approximately 1 second, and visual control over the quality of the products of the products of some controllers is needed several times more than the workers serving the line. Therefore, the need to include devices in the automatic line for control is completely obvious. The company often needs to order a rubber coating that can be inexpensive here: the price of rubber coating.
Significant decrease in the quality of furniture, carpentry. details and other products are due to increased moisture of wood caused by uneven (by section and length) drying of the stack with boards, which in some cases reaches 5-10%.
Selective humidity control, widespread on woodworking enterprises, does not always reach the goal, and parts of high humidity often get into processing and assembly.
Continuous control of the humidity of the workpieces with simultaneous selection (active control) of workpieces that do not meet the specified technical conditions can sharply improve the quality of woodworking products.
As a result of long-term research work to find methods of active control of humidity carried out in 1954-1955., NIDEVMASH and NIITITS offered an automatic humidity controller.
The design of the automatic humidity controller is based on a sensor that uses a directed stream of electromagnetic energy of the centimeter wave waves. The action of the sensor is based on the absorption of energy in the material.
Rupor, like a spotlight, directs energy to the tested rail that, passing through the thickness of the wood, is partially absorbed, and the degree of absorption depends on humidity: in a wet rail of energy, more is absorbed in the dry rail.
The complexity of the configuration