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A kind of nano-respiration sensor and preparation method thereof

A breathing sensor, nanotechnology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for sensing, etc., can solve the problems of large volume, complex structure, poor comfort, etc.

Active Publication Date: 2018-01-16
XUZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the sensors used for respiratory monitoring mainly include thermal type, differential pressure type and piezoelectric type, etc. Among them, the thermal sensitive sensor obtains the respiratory signal through the temperature change caused by breathing, which is easily affected by the ambient temperature; Changes to obtain signals require the user to wear a mask, which is less comfortable; the piezoelectric sensor is limited by the sensitivity of sensitive materials, so it is large in size and high in cost
The existing respiratory sensor has a complex structure, which is not conducive to one-time use, and the disinfection procedure is cumbersome

Method used

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  • A kind of nano-respiration sensor and preparation method thereof
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  • A kind of nano-respiration sensor and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A nano-respiration sensor, which includes a sensitive unit 1, a constant voltage power supply 2, an amplifier 3, an analog / digital converter 4, a single-chip microcomputer 5, a liquid crystal display 6, a memory 7 and an alarm device 8; one end of the sensitive unit 1 is connected to a constant voltage Power supply 2, the other end is connected to the amplifier 3, after the current is amplified, it is connected to the single-chip microcomputer 5 through the analog / digital converter 4, and the signal can be stored by the memory 7 after processing, and displayed by the liquid crystal display 6, and can be paired by the alarm device 8 abnormal signal to alarm; wherein the sensitive unit 1 includes a substrate 9, a pair of microelectrodes 10 distributed on the substrate, and a sensitive element zinc oxide nanowire 11 lapped between the pair of microelectrodes, forming a gap between the sensitive element and the pair of microelectrodes. Robust and reliable low-resistance cont...

Embodiment 2

[0032] A nano-respiration sensor, which includes a sensitive unit 1, a constant voltage power supply 2, an amplifier 3, an analog / digital converter 4, a single-chip microcomputer 5, a liquid crystal display 6, a memory 7 and an alarm device 8; one end of the sensitive unit 1 is connected to a constant voltage Power supply 2, the other end is connected to the amplifier 3, after the current is amplified, it is connected to the single-chip microcomputer 5 through the analog / digital converter 4, and the signal can be stored by the memory 7 after processing, and displayed by the liquid crystal display 6, and can be paired by the alarm device 8 abnormal signal to alarm; wherein the sensitive unit 1 includes a substrate 9, a pair of microelectrodes 10 distributed on the substrate, and a sensitive element zinc oxide nanowire 11 lapped between the pair of microelectrodes, forming a gap between the sensitive element and the pair of microelectrodes. Robust and reliable low-resistance cont...

Embodiment 3

[0040] A nano-respiration sensor, which includes a sensitive unit 1, a constant voltage power supply 2, an amplifier 3, an analog / digital converter 4, a single-chip microcomputer 5, a liquid crystal display 6, a memory 7 and an alarm device 8; one end of the sensitive unit 1 is connected to a constant voltage Power supply 2, the other end is connected to the amplifier 3, after the current is amplified, it is connected to the single-chip microcomputer 5 through the analog / digital converter 4, and the signal can be stored by the memory 7 after processing, and displayed by the liquid crystal display 6, and can be paired by the alarm device 8 abnormal signal to alarm; wherein the sensitive unit 1 includes a substrate 9, a pair of microelectrodes 10 distributed on the substrate, and a sensitive element zinc oxide nanowire 11 lapped between the pair of microelectrodes, forming a gap between the sensitive element and the pair of microelectrodes. Robust and reliable low-resistance cont...

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Abstract

A nano-respiration sensor and a preparation method thereof belong to the technical field of sensors. The invention includes a sensitive unit and a constant voltage sensing circuit. One end of the microelectrode pair of the sensitive unit is connected to a constant voltage power supply, and the other end is connected to an amplifier. After the current is amplified, it is connected to a single-chip microcomputer through an analog / digital converter. stored and displayed on the LCD. When the respiratory airflow passes through the zinc oxide nanowires, the conductance of the zinc oxide changes, which can be used to monitor different respiratory rates and intensities of nano-respiration sensors, and provide sound and light alarms for abnormal respiration. The invention has the following beneficial effects: simple device structure, low preparation cost, and mass production; low working voltage, low power consumption, safety and reliability; fast response speed, high sensitivity, strong anti-interference ability, completely non-contact with human body, easy to use High comfort.

Description

technical field [0001] The invention relates to a device in the technical field of sensors and a preparation method thereof, in particular to a nano-respiration sensor and a preparation method thereof. Background technique [0002] Abnormal breathing is the harbinger of many sudden diseases, therefore, the monitoring of abnormal breathing is of great significance in medicine. At present, the sensors used for respiratory monitoring mainly include thermal type, differential pressure type and piezoelectric type, etc. Among them, the thermal sensitive sensor obtains the respiratory signal through the temperature change caused by breathing, which is easily affected by the ambient temperature; Changes to obtain signals require the user to wear a mask, which is less comfortable; the piezoelectric sensor is limited by the sensitivity of sensitive materials, so it is large in size and high in cost. The existing respiratory sensor has a complex structure, which is not conducive to on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/60G01N27/12B82Y15/00
Inventor 赵波王楠齐红霞
Owner XUZHOU NORMAL UNIVERSITY
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