SU1272199A1 - Transducer for determining ammonia in gas environment - Google Patents
Transducer for determining ammonia in gas environment Download PDFInfo
- Publication number
- SU1272199A1 SU1272199A1 SU853886247A SU3886247A SU1272199A1 SU 1272199 A1 SU1272199 A1 SU 1272199A1 SU 853886247 A SU853886247 A SU 853886247A SU 3886247 A SU3886247 A SU 3886247A SU 1272199 A1 SU1272199 A1 SU 1272199A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- semiconductor
- ammonia
- increase
- sensor
- germanium
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
Изобретение относитс к полупроводниковым чувствительным элементам и может быть использовано дл определени аммиака. Цель изобретени состоит в повьппении избирательности к аммиаку, увеличении чувствительности и быстродействи датчика. В качестве полупроводникового элемента примен ют германий п-типа с окисным слоем, в одну кз плоскостей которого вплавлена легирующа добавка инди . Причем толщина сло окиси германи находитс в пределах от 0,8 до 1,0 мкм. Так как максимальное изменение сопротивлени р-п-перехода наблюдаетс при этих толщинах, то селективность и чувствительность датчика увеличиваютс . 1 ил.The invention relates to semiconductor sensing elements and can be used to determine ammonia. The purpose of the invention is to increase the selectivity to ammonia, to increase the sensitivity and speed of the sensor. As a semiconductor element, n-type germanium is used with an oxide layer, in one of which planes of the planes an alloying agent indium is fused. Moreover, the thickness of the germanium oxide layer is in the range of 0.8 to 1.0 µm. Since the maximum change in resistance of the pn junction is observed at these thicknesses, the selectivity and sensitivity of the sensor increase. 1 il.
Description
ю Yu
юYu
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU853886247A SU1272199A1 (en) | 1985-03-13 | 1985-03-13 | Transducer for determining ammonia in gas environment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU853886247A SU1272199A1 (en) | 1985-03-13 | 1985-03-13 | Transducer for determining ammonia in gas environment |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1272199A1 true SU1272199A1 (en) | 1986-11-23 |
Family
ID=21173886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU853886247A SU1272199A1 (en) | 1985-03-13 | 1985-03-13 | Transducer for determining ammonia in gas environment |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1272199A1 (en) |
-
1985
- 1985-03-13 SU SU853886247A patent/SU1272199A1/en active
Non-Patent Citations (1)
Title |
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Патент US № 4033169, кл. G 01 N 27/12, 1977. Патент US 4058368, кл. G 01 N 27/12, 1977. * |
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