Gas measuring device

Patent metadata

Field	Value
Publication number	US-2023314375-A1
Application number	US-202318129242-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 magnetic field generation unit configured to generate a magnetic field; and a gas sensor configured to detect a gas that has passed through the magnetic field generated by the magnetic field generation unit.

First claim

What is claimed is:

1 . A gas measuring device comprising:
a magnetic field generation unit configured to generate a magnetic field; and a gas sensor configured to detect a gas that has passed through the magnetic field generated by the magnetic field generation unit.

2 . The gas measuring device according to claim 1 , wherein the magnetic field generation unit is made of a permanent magnet.

3 . The gas measuring device according to claim 1 , further comprising a power supply unit,
wherein the magnetic field generation unit is a coil, and wherein the power supply unit energizes the coil.

4 . The gas measuring device according to claim 3 , 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 unit on the basis of a control signal for determining a magnitude of a voltage or current and the synchronization signal such that the voltage or current having the magnitude determined with the control signal is applied to the coil 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.

5 . The gas measuring device according to claim 4 , 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.

6 . The gas measuring device according to claim 1 , further comprising a plurality of gas sensors including the gas sensor,
wherein the plurality of gas sensors includes different gas sensors capable of detecting a gas type different from the gas type detected by the gas sensor.

7 . The gas measuring device according to claim 6 , wherein the plurality of gas sensors is disposed in a direction of the magnetic field generated by the magnetic field generation unit.

8 . The gas measuring device according to claim 2 , further comprising a plurality of gas sensors including the gas sensor,
wherein the plurality of gas sensors includes different gas sensors capable of detecting a gas type different from the gas type detected by the gas sensor.

9 . The gas measuring device according to claim 8 , wherein the plurality of gas sensors is disposed in a direction of the magnetic field generated by the magnetic field generation unit.

10 . The gas measuring device according to claim 3 , further comprising a plurality of gas sensors including the gas sensor,
wherein the plurality of gas sensors includes different gas sensors capable of detecting a gas type different from the gas type detected by the gas sensor.

11 . The gas measuring device according to claim 10 wherein the plurality of gas sensors is disposed in a direction of the magnetic field generated by the magnetic field generation unit.

12 . The gas measuring device according to claim 4 , further comprising a plurality of gas sensors including the gas sensor,
wherein the plurality of gas sensors includes different gas sensors capable of detecting a gas type different from the gas type detected by the gas sensor.

13 . The gas measuring device according to claim 12 wherein the plurality of gas sensors is disposed in a direction of the magnetic field generated by the magnetic field generation unit.

14 . The gas measuring device according to claim 5 , further comprising a plurality of gas sensors including the gas sensor,
wherein the plurality of gas sensors includes different gas sensors capable of detecting a gas type different from the gas type detected by the gas sensor.

15 . The gas measuring device according to claim 14 wherein the plurality of gas sensors is disposed in a direction of the magnetic field generated by the magnetic field generation unit.

Assignees

• Sintokogio Ltd
• National Univ Corporation Toyohashi Univ Of Technology

Inventors

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

Classifications

• G01N27/83 Primary

  by investigating stray magnetic fields · CPC title

• G01N27/74 Primary

  of fluids (G01N24/00 takes precedence) · CPC title

• G01N33/0031

  comprising two or more sensors, e.g. a sensor array · CPC title

• G01N33/0011 Primary

  Sample conditioning (preparing specimens for investigation G01N1/28) · CPC title

• G01N33/0009

  General constructional details of gas analysers, e.g. portable test equipment (devices for withdrawing samples in the gaseous state G01N1/22) · CPC title