MODULE FOR MONITORING AT LEAST ONE PHYSICAL AMPLITUDE CHARACTERISTIC OF STATE OF CONTACT GUIDE PART COMPRISING PIFA ANTENNA Russian patent published in 2017 - IPC G01H11/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to metrology, particularly, to devices for monitoring and transmitting information on state of a control object. Device comprises a module for monitoring amplitude characteristic of state of a contact guide part, PIFA antenna arranged in a metal cavity facing outside and closed by a protective cover made of transparent material, permeable to electromagnetic waves. PIFA antenna comprises a radiating element contained in a substrate, comprising multiple layers of different materials. Antenna has a grounding plane, that is folded around radiating element. Radiating element is connected to different sections of grounding plane by capacitors. Antenna also comprises a power supply line, extending from central core of connector through circular cavity of grounding plane. Protective cover is made of radioparent material – high-density polyethylene or low-density polyethylene.

EFFECT: high mechanical strength and reliability of structure.

19 cl, 8 dwg, 1 tbl