Extended range chemical sensing apparatus

Patent · Tue Jan 18 00:00:00 EST 1994

OSTI ID:5181773

Hughes, R C; Schubert, W K

An apparatus is described for sensing chemicals over extended range of concentrations. In particular, first and second sensors each having separate, but overlapping ranges for sensing concentrations of hydrogen are provided. Preferably, the first sensor is a MOS solid state device wherein the metal electrode or gate is a nickel alloy. The second sensor is a chemiresistor comprising a nickel alloy. 6 figures.

• DOE Contract Number: AC04-76DP00789
• Assignee: Dept. of Energy, Washington, DC ()
• Patent Number(s): US 5279795; A
• Application Number: PPN: US 8-000171
• OSTI ID: 5181773
• Resource Relation: Patent File Date: 4 Jan 1993
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
08 HYDROGEN
HYDROGEN
MONITORING
MONITORS
DESIGN
CHEMICAL ANALYSIS
CONCENTRATION RATIO
OPERATION
ELEMENTS
MEASURING INSTRUMENTS
NONMETALS
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry
080800 - Hydrogen- Properties & Composition