Flow measuring sensor for determining hydrogen ionic activity in flowing medium, has multi-layer solid material discharging system including zinc oxide layer, nickel layer contaminated with phosphor and gold layer with specific thickness

摘要

The sensor has an insulation glass tube (1) into which a tubular segment made of cation-selective electrode glass (2) is inserted. A complex multi-layer solid material discharging system is formed over fusion points (3) between the tube and glass and connected with a drain wire (9) by a soldered connection (8). The system has an insulation layer (10) containing polymer, a semi-conductive zinc oxide layer (5) with thickness of 50 nanometers, a nickel layer (6) contaminated with phosphor with thickness of 100 to 200 nanometers and a gold layer (7) with thickness of 100 nanometers. An independent claim is included for a method for producing a flow measuring sensor.