DEVICE FOR ELECTROMAGNETIC CONTROL OVER MOVEMENTS OF PRODUCT AND OVER ELECTRO-PHYSICAL PROPERTIES OF ITS MATERIAL Russian patent published in 2007 - IPC G01N27/90 G01B7/00 

FIELD: engineering of controlling and measuring equipment, in particular, multi-parametric control of geometric parameters and electro-physical properties of material of products, possible use in aggressive environments like salty and acidic steams, effects .

SUBSTANCE: device contains two-frequency generator, commutator, superimposed inductive-vortex current transformer, encased in electromagnetic body, and serially connected circuit for calculating controlled parameters and registration device. In accordance to invention device additionally contains block of filters and rigid membrane of material, resistant to effect of external aggressive vapors and electromagnetic fields. Membrane is made so that its parameters provide quasi-transparency for frequencies of generator. Membrane is located on the side of sensitive information end of transformer and hermetically connected by generating surface to its body. Block of filters is made in form of two filter plugs, one of which is adjusted to one frequency of generator, second one - to another frequency of generator, and block itself is electrically connected to outputs of generator, and by outputs - to inputs of commutator.

EFFECT: in accordance to invention, device has high precision and trustworthiness of measurement in aggressive environment.

1 dwg