INTEGRATED OPTIC SENSOR FOR THE DETECTION OF H2 CONCENTRATIONS

被引：32

作者：

BEARZOTTI, A

CALIENDO, C

VERONA, E

DAMICO, A

机构：

[1] CNR,IST ACUST,I-00189 ROME,ITALY

[2] UNIV ROME 2,DIPARTIMENTO ELETTR,I-00173 ROME,ITALY

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1992年 / 7卷 / 1-3期

关键词：

D O I：

10.1016/0925-4005(92)80386-C

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A Mach-Zehnder interferometer has been utilized as a basic optical device for a new hydrogen sensor. The sensitivity to hydrogen is obtained through refractive index changes induced by absorption or desorption of hydrogen in a thin film of palladium deposited on one of the two branches of the interferometer. The relative phase shift of the light propagating along the two branches gives rise to a change in the output intensity, which can be correlated to the hydrogen concentration.

引用

页码：685 / 688

页数：4

共 10 条

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