AMMONIA TRACE CONTAMINANT SENSOR Russian patent published in 2018 - IPC G01N27/12 

FIELD: measuring equipment.

SUBSTANCE: invention relates to gas analysis, in particular to detecting devices used for recording and measurement of trace contaminant of ammonia. Proposed sensor with a considerable simplification of its production technology makes it possible to determine the content of ammonia with a sensitivity several times higher than the sensitivity of existing sensors. ammonia trace contamination sensor containing a semiconductor substrate 1 and a substrate is proposed. Semiconductor base is made of a polycrystalline film of a solid solution of the composition (CdTe)_0.45(CdS)_0.55, and the substrate is the electrode pad 2 of the piezoquartz resonator 3.

EFFECT: invention can be used for environmental monitoring.

1 cl, 3 dwg