OXYGEN DETECTOR

PROBLEM TO BE SOLVED: To provide a simply structured oxygen detector which can be configured with space saving and efficiently detect only oxygen remaining in a specimen.SOLUTION: The oxygen detector M comprises: a metal filament 1 whose surface is covered with an oxide film; a grid 2; a power sourc...

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Hauptverfasser:	NAKAJIMA TOYOAKI, TANAKA RYOTA, KUROKAWA YUJIRO, YURI TSUTOMU
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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creator	NAKAJIMA TOYOAKI TANAKA RYOTA KUROKAWA YUJIRO YURI TSUTOMU
description	PROBLEM TO BE SOLVED: To provide a simply structured oxygen detector which can be configured with space saving and efficiently detect only oxygen remaining in a specimen.SOLUTION: The oxygen detector M comprises: a metal filament 1 whose surface is covered with an oxide film; a grid 2; a power source E1 for the filament, which feeds a DC current to the filament; a power source E2 for the grid, which gives potential higher than the filament to the grid; and detection means 3 that makes the power source for the filament energize and light the filament so as to emit thermal electrons, and measures the emission current between the filament and the grid. The oxygen (concentration) is detected from the emission current measured by the detection means.
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title	OXYGEN DETECTOR
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