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Acetone sensor device

A sensor device and sensor technology, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of inability to achieve high sensitivity and high linearity acetone detection, and achieve portable implementation, speed up the detection process, and easy implementation. Effect

Inactive Publication Date: 2013-10-23
叶哲良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal oxide materials listed are LaFeO 3 、In 2 o 3 、WO 3 , and ZnO, but most of them cannot achieve high-sensitivity and high-linear sub-ppm acetone detection

Method used

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  • Acetone sensor device
  • Acetone sensor device
  • Acetone sensor device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] The present invention proposes an acetone sensor device, which has:

[0073] an air chamber for containing a breath sample from a subject;

[0074] an acetone sensor placed in the air chamber to generate an output current according to the acetone concentration of the breath sample;

[0075] a heating element for heating the acetone sensor; and

[0076] a measurement unit, coupled with the acetone sensor to provide a measurement signal corresponding to the output current;

[0077] Wherein the acetone sensor has:

[0078] a substrate;

[0079] a buffer layer deposited on the substrate;

[0080] an InN epitaxial layer deposited on the buffer layer to provide a current path for the output current;

[0081] a first conductive contact deposited on the InN epitaxial layer to provide a drain contact coupled to a first voltage;

[0082] a second conductive contact deposited on the InN epitaxial layer to provide a source contact coupled to a second voltage; and

[0083] A ...

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PUM

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Abstract

The invention discloses an acetone sensor device, comprising a gas containing chamber, and an acetone sensing component, wherein the gas containing chamber is used for containing a breath sample of a tester; the acetone sensing component is arranged inside the gas containing chamber and used for generating an output current according to the acetone concentration of the breath sample; the acetone sensing component comprises a substrate, a buffer layer, an InN epitaxial layer, a first conductive joint, and a second conductive joint; the buffer layer is deposited on the substrate; the InN epitaxial layer is deposited on the buffer layer to provide a current path of the output current; the first conductive joint is deposited on the InN epitaxial layer to provide a drain joint; and the second conductive joint is deposited on the InN epitaxial layer to provide a source joint.

Description

technical field [0001] The present invention relates to an acetone sensor device, in particular to an acetone sensor device which can detect the acetone concentration of a gas sample with a low acetone concentration. Background technique [0002] More than 200 volatile organic compounds (VOC volatile organic compounds) exist in human breath, and the concentration of these VOCs is generally at the sub-ppm or lower level. There have been reports that abnormal VOC concentrations in human breath are associated with unhealthy / damaged bodies / organs. For example, acetone in diabetes, trimethylamine in uremia, and ammonia in kidney disease. Therefore, VOCs in human breath can be used as disease-specific biomarkers for non-invasive disease screening or tracking. [0003] Acetone can be produced in the human body through fatty acid oxidation, and excess acetone in the blood system is excreted through the lungs. Higher acetone concentrations (from 1.7ppm to 3.7ppm) can be detected i...

Claims

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Application Information

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IPC IPC(8): G01N27/00
Inventor 叶哲良果尚志
Owner 叶哲良
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