Gas measuring device

Patent metadata

Field	Value
Publication number	US-2023314354-A1
Application number	US-202318129279-A
Country	US
Kind code	A1
Filing date	Mar 31, 2023
Priority date	Apr 5, 2022
Publication date	Oct 5, 2023
Grant date	—

Abstract

A gas measuring device includes: a filter to which a power supply that applies a voltage or current is connected, which generates resistance heat, and which combusts a predetermined combustible gas in contact therewith; and a gas sensor configured to detect the combustible gas that has passed through the filter.

First claim

What is claimed is:

1 . A gas measuring device comprising:
a filter connected to a power supply that applies a voltage or current, configured to generates resistance heat, and configured to combusts a predetermined combustible gas in contact therewith; and a gas sensor configured to detect the combustible gas that has passed through the filter.

2 . The gas measuring device according to claim 1 , further comprising:
a signal generation unit configured to output a synchronization signal for determining a timing; a control unit configured to control the power supply on the basis of a control signal for determining a temperature of the filter and the synchronization signal such that the temperature of the filter becomes a temperature determined with the control signal at the timing determined with the synchronization signal; an acquisition unit configured to acquire a detection value of the gas sensor at the timing determined with the synchronization signal; and an output unit configured to output the detection value and the control signal in association with each other.

3 . The gas measuring device according to claim 2 , further comprising a determination unit configured to determine a gas type on the basis of a pre-acquired relationship, the detection value, and the control signal,
wherein the pre-acquired relationship is a relationship among the gas type, the detection value, and the control signal.

4 . The gas measuring device according to claim 1 , wherein the filter is made of at least one of tungsten, a nickel-chromium alloy, molybdenum, and copper.

5 . The gas measuring device according to claim 2 , wherein the filter is made of at least one of tungsten, a nickel-chromium alloy, molybdenum, and copper.

6 . The gas measuring device according to claim 3 , wherein the filter is made of at least one of tungsten, a nickel-chromium alloy, molybdenum, and copper.

Assignees

• Sintokogio Ltd
• National Univ Corporation Toyohashi Univ Of Technology

Inventors

• Mizutani Manase
• Suzuki Yoshihisa
• Noda Toshihiko
• Sawada Kazuaki

Classifications

• G01N25/22 Primary

  on combustion or catalytic oxidation, e.g. of components of gas mixtures · CPC title

• G01N33/0027

  concerning the detector · CPC title

• G01N33/0013 Primary

  by a chemical reaction (a chemical reaction taking place or a gas being eliminated in one or more analysing channels G01N33/0024) · CPC title

• G01N27/16

  caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas · CPC title

• G01N33/0014

  by eliminating a gas (by a chemical reaction G01N33/0013; a chemical reaction taking place or a gas being eliminated in one or more analysing channels G01N33/0024) · CPC title